acta facultatis medicae naissensis
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acta facultatis medicae naissensis
ACTA FAC MED NAISS YU ISSN 0351-6083 Volume 24 / 2007 / No 2 ACTA FACULTATIS MEDICAE NAISSENSIS MEDICINSKI FAKULTET UNIVERZITETA U NIŠU Bul. dr Zorana Đinđića br. 81, Niš Faculty of Medicine University of Nis Nis, 81 Dr Zoran Djindjic Blvd. Scientific Journal ACTA FACULTATIS MEDICAE NAISSENSIS The Faculty of Medicine, Nis Naučni časopis Medicinskog fakulteta, Univerziteta u Nišu Scientific Journal of the Faculty of Medicine, University of Nis ACTA FACULTATIS MEDICAE NAISSENSIS Dekan Medicinskog fakulteta u Nišu Prof. dr Milan Višnjić Niš, Dr Zorana Đinđića 81 Srbija, 18000 Niš Telefon 018/ 226 712, Fax 018/ 238 770 Dean of the Faculty of Medicine, Nis Professor Milan Višnjić MD Nis, 81 Dr Zoran Djindjic Blvd. Serbia, 18000 Nis Phone +381 18 226 712, Fax +381 18 238 770 IZDAVAČKI SAVET Predsednik Izdavačkog saveta Prof. dr Milan Višnjić Angeli Alberto, Milan Cimbaljević Miloš, Podgorica Christian Gluud, Copenhagen Hrvačević Rajko, Beograd Ilić Stevan, Niš Janković Momčilo, Milan Janković Slobodan, Kragujevac Jovanović Dušan, Sremska Kamenica Jovanović Sergije, Berlin Kanjuh Vladimir, Beograd Karakolev Zhivko, Stara Zagora Kocić Ivan, Gdansk Kostić Vladimir, Beograd Krivokapić Zoran, Beograd EDITORIAL COUNCIL Chairman Professor Milan Višnjić MD Lass Piotr, Gdansk Leake Robin, Glazgow Milankov Miroslav, Novi Sad Milenkova Ljiljana, Skopje Mitrović Veselin, Bad Nauheim Myere Eugene, Pittsburgh Nestorović Vojkan, Priština Nevelsteen Andre, Leuven Radak Đorđe, Beograd Ribarov Stefan, Sofia Savevski Jordan, Skopje Savić Vojin, Nis Takanori Hattori, Japan Trbojević Stevan, Srbinja Vojteck Hainer, Prag Glavni urednik Prof. dr Marina Deljanin Ilić Zamenik glavnog urednika Prof. dr Aleksandar Nagorni Editor-in-Chief Prof. dr Marina Deljanin Ilić Assistant Editor-in-Chief Prof. dr Aleksandar Nagorni UREĐIVAČKI ODBOR Bogićević Momčilo Dimić Aleksandar Đorđević Dragoslav Igić Aleksandar Kamenov Borisav Kocić Branislava Krstić Milijanka Marković Zorica EDITORIAL BOARD Mitković Milorad Pavlović Dušica Pop-Trajković Zoran Petrović Dragan Radić Stojan Stefanović Vladislav Stoiljković Miroslav Lektori Anica Višnjić, diplomirani filolog za srpski jezik i književnost Bojana Marjanović Proofreading Anica Višnjić, graduated philologist in Serbian language and literature Bojana Marjanović, diplomirani filolog za engleski jezik i književnost graduated philologist in English language and literature Sekretari Doc. dr Goran Bjelaković Asist. dr Tatjana Jevtović-Stoimenov Editorial Secretary Assistant Professor dr Goran Bjelaković Teaching Assistant Tatjana Jevtović-Stoimenov Vlasnik i izdavač Medicinski fakultet u Nišu Adresa uredništva Medicinski fakultet Niš, Bul. dr Zorana Đinđića 81 Published by the Faculty of Medicine, Nis, Serbia Editorial Address: The Faculty of Medicine Nis, 81 Dr Zoran Djindjic Blvd. Štampa GIP "PUNTA" - Niš Printed by GIP "PUNTA" - Nis, Serbia www.medfak.ni.ac.yu / Acta facultatis ACTA FAC MED NAISS YU ISSN 0351-6083 Volume 24 / 2007 / No 2 ACTA FACULTATIS MEDICAE NAISSENSIS MEDICINSKI FAKULTET UNIVERZITETA U NIŠU Bul. dr Zorana Đinđića br. 81, Niš Faculty of Medicine University of Nis Nis, 81 Dr Zoran Djindjic Blvd. Scientific Journal ACTA FACULTATIS MEDICAE NAISSENSIS the Faculty of Medicine, Nis Štampanje časopisa Acta Facultatis Medicae Naissensis tokom 2007. godine pomoglo je Ministarstvo za nauku i zaštitu životne sredine Republike Srbije. The publication of the Journal Acta Facultatis Medicae Naissensis in 2007 was provided thanks to cofinancing of the Ministry of Science and Environmental Protection of Republic of Serbia. ACTA FAC MED NAISS UDC 616.314-089.28 Professional article ACTA FAC MED NAISS 2007; 24 (2): 53-58 1 Cezary Kłosiński 1 Anna Lasecka 2 Dariusz Świetlik 1 Department of Prosthodontic Dentistry, Medical University, Gdańsk, Poland 2 Laboratory of Medical Informatics and Neural Networks, Medical University, Gdańsk, Poland BRIDGES MADE OF COMPOSITES REINFORCED WITH GLASS FIBRE, ANCHORED ON ABUTMENT TEETH WITH CROWN INLAYS – SELECTED CASES SUMMARY The usage of traditional bridges in the treatment of single dental gaps requires considerable grinding of the abutment teeth that should be protected with prosthetic crowns. An alternative to traditional bridges in the treatment of patients with single dental gaps can be fixed restorations, where crown inlays connect the pontic with abutment teeth. The aim of this study was to present an alternative method of treatment of single dental gaps with composite bridges reinforced with glass fibres, supported by selected clinical cases. The restorations were performed with composites reinforced with glass fibres: Targis/Vectris, Sinfony/StickTM, Sculpture/FibreKor. While preparing the abutment teeth, the existing fillings or cavities adjacent to the toothless gap were used to make crown inlays as retention elements for the bridges. Based on the treatment conducted and the literature, it is possible to affirm that bridges anchored with inlays on a glass fibre foundation are a very good alternative to conventional restorations in the selected cases. Key words: bridge, inlay, fibreglass INTRODUCTION Single dental gaps allow physicians to use different kinds of prosthetic restorations. Modern prosthetics proposes implants as restorations the least invasive to the teeth surrounding the gap. However, the numerous contraindications, high cost, as well as fear of surgery do not always permit their use. Conventional bridges commonly used in the treatment of single dental gaps require considerable grinding of abutment teeth which is not harmless to the prepared teeth, and the most frequent problems encountered are: caries (18%) and the need for endodontic treatment (11%) (1). Moreover, aesthetic concerns lead to the usage of subgingival crowns as retention elements of bridges, which is associated with the possibility of paradontium damage (2). Corresponding author • E-mail: cezary.klosinski@op.pl Well-known adhesive metal restorations with retention elements such as pins and wings have been used quite cautiously especially as restorations of side teeth, although clinical investigations have shown a high degree of success. They assured economical preparation of dental tissues, but the aesthetic effect was not fully satisfactory. Moreover, the connection of bridges stuck on a metal foundation with tooth tissues caused the appearance of two boundary layers (metal-composite and composite-tooth), which increased the risk of these restorations getting unstuck and of the development of secondary caries. An alternative to traditional bridges in the treatment of patients with single dental gaps are fixed restorations, where crown inlays connect the pontic with abutment teeth. This type of prosthetic reconstruction creates the possibility of economical preparation of abutment teeth as well as 53 Cezary Kłosiński, Anna Lasecka, Dariusz Świetlik permits to utilize existing fillings or cavities in dental hard tissues (3). The possibility of irreversible damage to abutment teeth pulp is smaller in comparison to conventional bridges (4). Bridges made of noble alloys as well as metal-ceramic ones, anchored by means of crown inlays, have been successfully used (5-7). The most often observed damages occurred between the metal and opaque ceramics. The presence of a metal frame is associated with the possibility of allergies as well as toxic effects of metal ions produced as a result of corrosion (8). Symptoms such as xerostomia, burning sensation in the mucous membrane, altered taste, pain, parodontal diseases, osteonecrosis and soft tissues necrosis have been observed. The development of materials technology and technological processes is directed towards restorations without a metal foundation, thus there have been attempts at using modern ceramics for the construction of bridges anchored by means of inlays. However, the usage of certain ceramics, due to their insufficient durability, is still limited in the posterior section of the dental arch (6). Restorations on a zirconium oxide foundation are recently becoming more and more popular. In vitro investigations have proven this type of bridges anchored with crown inlays to be highly durable, which gives reason for optimism, yet has to be confirmed in clinical observations (6). In the 1990s, composite materials reinforced with glass fibre were introduced to the market. The characteristic features of these materials are: high tensile strength and crushing strength and flexibility module similar to dentine, which permits to make prosthetic restorations with a capacity for damping and absorption of mechanical stresses (6). Moreover, these materials are available in several colours and are characterized by light conductivity particularly beneficial in adhesive cementation with the so-called dual cements. The structure of fibres can be one-way (all fibres arranged parallel to each other) or in the form of heterogeneous weaves. The glass fibres used in constructions of bridges anchored on abutment teeth with inlays are one-way fibres pre-proofed with resin. In vitro investigations have shown a higher deflection strength of composites reinforced with one-way glass fibres in comparison to glass fibres in the form of weaves and polyethylene fibres that are used in dentistry, too (9,10). The endurance of a construction reinforced with glass fibres is greater for one-way fibres arranged perpendicularly to emerging forces, particularly when the layer of glass fibre is located in the lower part of the bridge pontic, namely in the layer subject to tension. 54 Ceromers used for facing are marked by low water absorption, abrasion approximate to enamel and fluorescence, permitting to achieve a successful aesthetic effect. The usage of adhesive cements for fastening bridges anchored on abutment teeth by means of crown inlays has assured a perfect connection of those bridges with tooth tissues. However, one should remember that crown inlays are a weaker kind of retention elements for bridges than crowns and, therefore, their usage should be limited to the reproduction of single dental gaps. Moreover, the usage of bridges anchored on abutment teeth by means of crown inlays is contraindicated in cases of high susceptibility to caries, too extensive damage to dental crown, dead teeth, short dental crown and too thin walls surrounding the gap (the possibility of preparation under the inlay after lowering of approximately 2mm of bumps). The relative contraindications to using bridges anchored on dental pillars by means of crown inlays are: the inability of making a sufficient pit, presence of all-ceramic or metal-ceramic restorations as antagonists and advanced bruxism. Hebr. et al. observed 72 % survivability of these restorations after 3 years of observation. After 4 years, Freilich et al. observed 75 % of success and an increase of survivability to 86 % after enlarging the quantity of fibres (11). Other studies have shown 86% of success after 2 years of usage of restorations. Göhring et al. described the longest observation time (5 years) and they presented 71 % of success. The most frequent damage was the separation of layers from the facing material, connected with overestimated loading strength of the facing material (3). The author assesses boundary leak tightness as satisfactory. He observed an insignificant deterioration of leak tightness after a year of usage of the restorations, while in the next years he did not find any significant change. There have also been changes rather associated with the facing material, such as change of colour and gloss of the composite used. Even though the restorations presented are not free from defects, the slight reduction of dental tissues, satisfactory appearance and easiness of repair are the incentives to use them. The aim of this study was to present three selected cases of prosthetic treatment of patients with single dental gaps by means of composite bridges on a glass fibre foundation as an alternative method of treatment of single gaps in the side section: Targis/Vectris (Ivoclar Vivadent, Sweden), Sinfony (3M ESPE, USA)/StickTM (Stick Tech Ltd, Finland) and Sculpture/FibreKor (Jeneric/Pentron, Germany). The restorations were bonded adhesively with Variolink II (Ivoclar Vivadent, Sweden) or Calibra cement (DENTSPLY DeTry Gmbh, Germany). Bridges Made of Composites Reinforced with Glass Fibre, Anchored on Abutment Teeth with Crown Inlays – Selected Cases MATERIAL AND METHODS Abutment teeth were processed in accordance with the principles applicable to inlays to assure one track of introducing the restoration and to avoid the location of the edges of the processed surface in the area of contact with antagonistic teeth (9) (Figure 1). A one-step two-layer impression was taken with Zetaplus/Oranwash L mass (Zhermack, Italy) and KKD Kondisil mass (KKD Gmbh, Germany). Figure 3. Preparation of internal walls in parallel or slightly divergently (angle between bottom and axial wall 90ş ÷ 100º) – to obtain internal retention. Preparation of all internal angles in a rounded way to prevent additional tensions (Figure 4). Figure 1. Avoid the location of edges of the prepared surface in the area of contact with antagonistic teeth Making a pit on the occlusive surface with dimensions dependent on the material used (Figure 2): for Vectris it was necessary to make a pit 3 mm high, 2 mm wide and 2 mm long, while for FibreKor/StickTM and Sinfony/StickTM Systems – a pit of 2x2x 2mm. Figure 4. Preparation of all internal angles in a rounded way Removal of undercuts by filling them with a primer, e.g. glassionomer (Figure 5). Figure 2. Making a pit on occlusive surface with sizes dependent on chosen material: Targis/Vectris: 3 mm heigh, 2mm deep and 2 mm wide, and for Sinfony/StickTM and Sculpture/FibreKor a pit of 2 x 2 x 2mm. Preparation of internal walls parallel to each other or slightly divergent (the angle between the bottom and axial wall 90° ÷ 100°) - to obtain internal retention (Figure 3). Figure 5. Removal of undercuts by filling them with primer RESULTS Case I. The patient aged 30, arrived to have missing tooth 25 restored (Figure 6). In tooth 26, a 55 Cezary Kłosiński, Anna Lasecka, Dariusz Świetlik composite MO filling was found. Tooth 24 intact. Inlay bridge 24 x 26 was planned. Upon preparation of the teeth according to the above-presented steps, a one-step two-layer impression was taken with Zetaplus/Oranwash L mass, an impression of opposite teeth with alginate mass, check-bite impression. The colour was chosen according to the Chromascop key. Case II. The patient aged 32, arrived to have missing tooth 25 restored. In the clinical examination, amalgam MO filling in tooth 26 was found. Tooth 24 intact (Figure 9). A 24 x 26 inlay bridge was planned. Figure 6. Condition before treatment. Missing tooth 25 Figure 9. Condition before treatment. Missing tooth 25 The bridge was made from Targis/Vectris (Figure 7). The preparation of abutment teeth was done (Figure 10), a one-step two-layer impression was taken with KKD Kondisil mass, an impression of opposite teeth with alginate mass, check-bite impression. The colour was chosen according to the Vita key. The restoration was made from Sinfony/StickTM material. Figure 7. Teeth model after preparation. Bridge from Targis/Vectris During the second clinical visit, after checking the restorations, the teeth were cemented with adhesive cement Variolink II (Figure 8). Figure 10. Abutment teeth 24, 26 after preparation Figure 8 Bridge 24 x 26 cemented in oral cavity A very good aesthetic and functional effect was obtained. The patient has now been wearing the restoration for 3 years. 56 After a check-up of the oral cavity, the bridge was cemented with Variolink II (Figure 11). A very good aesthetic and functional effect was obtained. The clinical observation was being carried out for 2,5 years. Case III. The patient aged 24, a student of dentistry, arrived to have missing teeth 35 and 45 restored (Figure 12). Bridges Made of Composites Reinforced with Glass Fibre, Anchored on Abutment Teeth with Crown Inlays – Selected Cases After a check-up of the finished restoration in the oral cavity, the bridges were cemented with Calibra cement. A very good functional and aesthetic effect was obtained as a result of the treatment, confirmed by frequent follow-up visits and the patient's objective assessment (Figure 14). The period of observation was going on for 3 years. Figure 12. Condition before treatment The patient did not report any stomatognatic complaints. After an analysis of the conditions in the oral cavity, execution of bridges on a glass fibre foundation with 34 x 36 and 44 x 46 pillars was planned. One-step preparation of abutment teeth was performed on both sides of the dental arch (Figure 13). A one-step two-layer impression was taken using KKD Kondisil mass, an impression of opposite teeth – with alginate mass, check-bite impression. The colour was chosen according to the Vita key. The bridges were made from Sculpture/FibreKor material. Figure 13. Abutment teeth 34, 36, 44, 46 after preparation Figure 14. Bridges 44 x 46 and 34 x 36 cemented in oral cavity DISCUSSION AND CONCLUSION To recapitulate, it should be noted that composite bridges on a glass fibre foundation, in which crown inlays are the retention elements, are aesthetic restorations of small dental gaps and favor the prophylaxis of paradontium. Besides composite bridges on a glass fiber, foundation assures economical grinding of abutment teeth, using existing cavities and fillings and do not require abutment teeth to be parallel (12). Composite bridges provide the possibility of examining the vitality of abutment teeth, can be used in patients allergic to metals and make it possible to repair minor damages in the oral cavity. They are characterized by a simple laboratory procedure and comparatively low treatment costs, and in certain cases offer an alternative to conventional prosthetic restorations. REFERENCES 1. Goodacre C J, Bernal G, Rungcharassaeng K, Kan J Y. Clinical complications in fixed prosthodontics. J Prosthe Dent 2003; 90: 31-41. 2. Knoernschild K L, Campbell S D. Periodontal tissue responses after insertion of artificial crowns and fixed partial dentures. J Prosthet Dent 2000; 84: 492-498. 3. Gőehring T N, Peters O A, Lutz F. Marginal adaptation of inlay-retained adhesive fixed partial dentures after mechanical and thermal stress: An in vitro study. J Prosthet Dent 2001; 86: 81-92. 4. El-Mowafy O, Rubo M H. Resin-bonded fixed partia dentures-a literature review with presentation of novel approach. Int J Prosthodont 2000; 13: 460-467. 5. Imbery T A, Eshelman E G. Resin-bonded fixed partial dentures: a review of three decades of progress. J Am DentAssoc 1996; 127: 1751-1760. 6. Mehmet A, Kiliçarslan P, Kedici S, Küçükeşmen H C, Uludağ B C. In vitro fracture resistance of posterior metalceramic and all-ceramic inlay-retained resin-bonded partial dentures. J Prosthetic Dent 2004; 92: 365-370. 7. Stokholm R, Isidor F. Resin-bonded inlay retainer prostheses for posterior teeth. A 5-year clinical study. Int J Prosthodont 1996; 9: 161-166. 8. Johansson B I. Corrosion of copper, nickel and gold dental casting alloys: an in vitro and in vivo study. J Biomed Mater Res 1989; 23: 349-361. 9. Serdar C H, Ozturk B. Posterior bridges retained by resin-bonded cast metal inlay retainers: a raport of 60 cases followed for 6 years. J Oral Rehabil 1997; 24: 697-704. 10. Dyer S R., Lippo V J, Jokkinen M, Vallitu P K. Effect of fiber position and orientation on fracture load of fiberreinforced composite. Dental Materials 2004; 10: 947-955. 57 Cezary Kłosiński, Anna Lasecka, Dariusz Świetlik 11. Freilich M A, Meiers J C, Duncan J P, Eckrote K A, Goldberg A J. Clinical evaluation of fiber-reinforced fixed bridges. JAm DentAssoc 2002; 133: 1524-1534. 12. Monaco C, Ferrari M, Miceli G P, Scotti R. Clinical evaluation of fiber-reinfoced composite inlay FPDs. Int J Prosthodont 2003; 16: 319-325. KOMPOZITNI MOSTOVI OJAČANI STAKLENIM VLAKNIMA, FIKSIRANI NA ABATMENTIMA SA RAZLIČITIM INLEJIMA - ODABRANI SLUČAJEVI 1 1 2 Cezary Kłosiński , Anna Lasecka , Dariusz Świetlik 1 Odeljenje za zubnu protetiku, Medicinski fakultet, Gdansk, Poljska 2 Laboratorija za medicinsku informatiku i neuralne mreže, Medicinski fakultet, Gdansk, Poljska SAŽETAK Upotreba tradicionalnih mostova u lečenju pojedinačnog nedostatka zuba zahteva značajno brušenje nadomeštenih zuba, koje treba zaštititi protetičkim krunicama. Alternativa za tradicionalne mostove u lečenju pacijenata sa pojedinačnim nedostatkom zuba su fiksne restauracije gde krunični inleji povezuju pontične i nadomeštene zube. Cilj studije je bio da se prikaže alternativni metod lečenja pojedinačnog nedostatka zuba kompozitnim mostovima ojačanim staklastim vlaknima, što je i prikazano na primeru nekoliko kliničkih slučajeva. Restauracije su urađene kompozitima ojačanim staklenim vlaknima: Targis/Vectris, Sinfony/StickTM, Sculpture/FibreKor. U toku pripreme nadomeštenih zuba, postojeće plombe ili šupljine koje su se nalazile pored mesta gde je trebalo nadoknaditi zub su upotrebljene za izradu kruničnih inleja koji služe kao retencioni elementi za mostove. Na osnovu sprovedenog tretmana i dostupne literature, može se reći da su poluprovodni mostovi ojačani staklenim vlaknima veoma dobra alternativa u konvencionalnim restauracijama odabranih slučajeva. Ključne reči: most, inlej, staklasta vlakna 58 ACTA FAC MED NAISS UDC 616.728.2-089.84 Original article ACTA FAC MED NAISS 2007; 24 (2): 59-64 Dusan Vlatkovic Marko Vukovic REVISING HIP ARTHROPLASTY Department of General Surgery and Orthopaedics General Hospital Trebinje SUMMARY A number of requests for revision of previously fitted prosthesis has become often due to numerous causes and is likely to be more frequent in the future. By an intervention we want to remove some of the complications related to prosthetic replacement of the hip joint and its application. The causes are often interconnected. Those are biological problems related to prosthesis usage. We think that patient's behaviour leads to a number of complications as well. What you need for this intervention is an experienced team, wide range of fitting appliances and a set of good instruments. We replaced cement prostheses with cement ones in all but one case, and non-cement with non-cement or cement prostheses. We conducted antithrombosis prophylaxis and put a patient on antibiotics of high dosage for four days. Upright position was allowed depending on the general state starting from the third to seventh day. Key words: revising hip arthroplasty, complications of primary arthroplasty INTRODUCTION Revising hip arthroplasty is the procedure of replacements of the previously fitted hip prosthesis for different reasons. Essentially, it means solving a problem caused by using prosthesis (1). Nowadays, artificial joints of the hip are being increasingly fitted in young patients that shall result in more and more complications as the time passes. Even 20 years ago, more than 2,000 total hip prostheses were fitted daily, which actually means around 700,000 annually (2). In the USA, there are about 250,000 fractures of the femur neck with an estimate that, in 2050, that number would exceed 750,000 likewise in many other developed parts of the world (3,4). It is normal to expect, having in mind the number of patients, a considerable number of different complications which require the revision operation, in most cases the prosthesis replacement. That is why the awareness on possible complications is the first and important preventive measure. When we are to make decision on the hip prosthesis fitting, we should always think about "what to do later" or take into account the opinion of Wiliam Osler "the solution of today becomes the problem of tomorrow" or "what is considered to be wisdom today, it will be nonsense tomorrow". We treated the patients with complications that require the prosthesis replacement, i.e. rearthroplastics. That is why we decided to analyze our modest amount of material and present it with the basic aim to present which complications require revision. The aim of the paper was to present, based on our modest experience, both the reasons for Corresponding author. Tel: 00387 59 223 755, lok. 16 • E-mail: tbhospit@spinter.net 59 Dusan Vlatkovic, Marko Vukovic replacement of the previously implanted hip prosthesis and technical operation difficulties and results. The prosthesis aseptic loosening, as the reason for revision hip arthroplasty, was the case in two of our patients (Figure 2a); MATERIAL AND METHODS We analyzed disease histories i.e. clinical and radiological results of those patients who had been fitted the hip prosthesis. They were revised in three hospitals in the Eastern part of Republic of Srpska. It total, there were 18 patients (Figure 1). We could analyze neither indication for fitting of the primary prosthesis nor the postoperative course, because 16 patients were operated outside our area. Two patients were primarily operated in our institutions. The reason for fitting of the revision prosthesis was pain in the femur diaphysis, and as far as another patient was concerned, it was dislocation of the prosthesis femoral component. Figure 2a. Postoperative radiography in the same patient ASEPTIC LOOSENING Figure 1. Diagram of the number of patients according to the indications for the revision hip arthroplasty Indications for the revising arthro-plastics are the following: 1. Aseptic loosening of one or both prosthesis components (Figure 2). 2. Progressive loss of the bone mass of the femur or acetabulum. Protrusion of prosthesis and osteolysis of spine or/and deeper parts of the femur. As the reason for revision hip arthroplasty, femoral component dislocation of the prosthesis was the case in five patients, and acetabular component dislocation of the prosthesis was the case in four patients. Dislocation of both components of the prosthesis was the case in two patients. 3. Infected prosthesis - stable or unstable As the reason for revision hip arthroplasty, the infection was the case in one patient. Figure 2. Aseptic loosening of the acetabulum component in the patients preoperatively 60 Revising hip arthroplasty 4. Fractures of the implants of the trunk or joint - we have not had such cases. 10. The coming period shall bring new complications for sure. 5. Irreducible prosthesis-we have not had such cases. During the operations, we implanted the standard prostheses of the Aesculap type, such as 18 cemented prostheses and 2 cementless ones. We implanted neither hybrid nor revision prostheses. The primary hip prosthesis was worn in the period of 3 to 20 years, with mean duration of 11.5 years. Mean age of the patients was 66.8 years, (range 57 - 76 years). Of the operated patients, 10 were women and 8 were men. 6. Fractures of bones near implants or implants and bones' fractures - as the reason for revision hip arthroplasty, femur diaphysis fracture was the case in three patients (Figure 3a, 3b). RESULTS Figure 3a. Fractures of bones near implants Figure 3b. Postoperative radiography in the same patient 7. Periprosthetic problems - ectopy ossification and fracture of trochanter. 8. Pain without clear cause usually in the femur diaphysis. As the reason for revision hip arthroplasty, pain of unclear genesis was the case in one patient (Figure 4). In the respective period, from one to five years, we did not have the cases of death, infections and thromboemboly. In one case, there was a recurrence of dislocation, and as for the second case, there was some pain in the upper leg without clinical and radiological sings of other complications. Equalling (equalling of the legs' length) was achieved in 15 patients while there was reduction of the operated extremities in 3 patients, on average by 2,8 cm. The patients' rehabilitation was initiated in cooperation with the physical therapist immediately after the operation in the sense of breathing; mobilization in bed, static exercises in bed, and the second postoperative day after aspiration drainage outlet was removed, sitting in bed and vertical positioning accompanied with previous exercises. On the third day, the patients started to walk on crutches or walker. Physical rehabilitation was continued after the patient was discharged from the hospital, the clinic of the physical medicine, because at that time the Health Insurance Fund did not finance the health resort treatments that those patients needed. Few patients, i.e. three of them financed themselves for the health resort treatments after operation. All the patients were ready for their everyday activities, but since all 18 patients were retired persons, there was no need for their professional rehabilitation. The patients used crutches or walker for 3 or 4 months, but a great number of patients, 12 of them, continued to use the stick for ever. DISCUSSION Figure 4. Postoperative radiography of patient with pain of unclean genesis 9. Prosthesis wearing out. The number of patients with the artificial hip joint inserted is increasing. The reason for that is the wish of patients to keep painless and mobile hip. Objectively, better knowledge about the hip 61 Dusan Vlatkovic, Marko Vukovic biomechanics, better prosthesis design and improved knowledge of the operative technics lead towards this aim. Apart from that, the age of patients is growing, so more and more often there are objective reasons for this intervention. Nowadays, 1.2 prostheses are inserted per 1,000 people annually. The requests for the revising hip prosthesis are present in all big medical institutions, while the number of these interventions will be growing in the future. The aim of each intervention is to remove the problem and make the hip more functional, considering the expected life time of the patient. Almost all complications related to prosthetic hip may lead to prosthesis replacement. We had the following cases in our material: • The occurrence of aseptic loosening in our patients was in 11.1% and the causes of its occurrence are of still insufficiently explained pathogenesis (5-9). The cause of this complication has not been sufficiently explained so far, but it is stated as follows: cementing technics, prosthesis positioning, reaction of the organism to a foreign body (6-9). Generally speaking, it can be said that it is the result of maladaptation and reaction of the live tissue to a foreign body (cement and metal). • The occurrence of aseptic loosening is 35%, analyzing the five-year period of the operated patients (10). It is clinically manifested with the sharp pain on burden and its disappearance while at rest. Radiological visible area of luminous state around the cement, i.e. prosthesis, is not always the proof of clinical instability. According to Ritter, it is unstable sign because it is visible in 39% of cases, while prosthesis migration in those circumstances is present only in 4% of patients (11). We accepted this sign only in those cases followed by pain on burden which disappeared while lying. The findings of the nucleotide radiography are very often unreliable because accumulation of nucleotids in the surrounding tissue is huge and there are not any of them at the place of dead bone. In that way, we can get both false negative and false positive results. Aseptic loosening is more frequent in the femoral than in acetabulum component of the prosthesis, which used to be the case with our patients (27.7%:16.6%). Russoti et al. found some 1.2% of loosened femoral and 0.4% acetabulum components of prosthesis in patients five years after the operation, compared to the previous study in the same institution where the percentage was 24% and 12.5%, respectively. They concluded that decrease in the number of loosening was caused by the improvement of the operative technics for prosthesis fitting. 62 It is very difficult to notice the difference in biological and mechanical processes occurring in relation to inflammatory destruction of bones and development of loosening in cement and noncement prosthesis (12). There was also an aggressive role of granulocytosis noticed in the bones' destruction (13). Maloney emphasizes the importance of biomechanical and histological research on the autopsy material (14). Prevention of prosthesis aseptic loosening partly depends on the surgeon, while considerable part is contributed to biology of patients, which the surgeon cannot have the influence on (15). It was also proven that polymetil metacrylat causes release of factors which support the bone resorption, i.e. leads to the aseptic loosening (16). Prosthesis dislocation of one or both parts was the most typical complication in our patients. Dislocation of the prosthesis femoral component is, in most of the cases, the consequence of incorrect biomechanical relations established by operation i.e. prosthesis centralizing and non-physiological transfer of burden (6). The spine osteolysis leads to modified mechanical behavior of the prosthesis femoral component, which consequently leads to the femur diaphysis osteolysis in the upper part of prosthesis, especially its lateral wall (9). Prosthesis dislocation is the most frequent in the back access and it is up to 16%, 6% in the lateral access and below 4% in the front one (9,15) (Figure 5). Figure 5. Irreducible prosthesis We personally believe that dislocations are sometimes caused by behavior of patients, particularly in the first months after the operation. Inappropriate centralizing of any prosthesis components or axial instability anyway supports this condition. Progressive loss of the bone mass can also be attributed to intolerance of bones towards the Revising hip arthroplasty foreign body, but even more to non-physiological allocation of the burden forces which lead to the femur diaphysis spine ostheolysis around the prosthesis top. (9) Progressive loss of the bone mass will always bring about prosthesis loosening and theoretically, all patients will have it if they live long enough (8,17). Hip joint osteolysis is caused by excessive reanimation of the joint, excessive number of deep holes for the cement entrance to the hip and biological reaction of the bone to the foreign body. Apart from that, this complication may also be caused by bad positioning of the acetabulum components of prosthesis, acetabulum displasia, patients suffering from rheumatic arthritis and neuromuscular disease and etc. It is also necessary to mention the inevitable impact of biological factors on occurrence of this complication as well as additional fracture of acetabulum (protrusion), to a great extent caused by the behavior of patients. It is particularly related to young population whose physiological activity exceeds tolerance of the connection of prosthesis-bone. Infection: Regardless of the fact that the number of infections is reduced from 10% to acceptable 0,5%, applying antibiotics and providing surgery rooms with filtered air, it is still one of the most dangerous complications of the operated hip (18,19). Its diagnosis is difficult unless there is fistula. Nowadays, numerous clinical and laboratory diagnostic procedures are used to establish the diagnosis of the infected alloplastics of the hip joint (20). We had a case of deep prosthesis infection caused by Staphyloccocuss epidermidis established twice during preoperative puncture or 5.5%. In this case we removed prosthesis and fitted it, revising six months later. Fortunately, it passed without infection two years after revising. Prosthesis trunk fracture did not occur in our patients, but it regularly occurs after the spine osteolysis, while the prosthesis peak is steadily impacted in the channel, when the force of bending is transmitted to the trunk which leads to fatigue of the material and occurrence of this complication. Femur diphysis fracture was the problem registered in three patients, or 16,6%, and in our opinion, it was caused by primary fitting of the too short trunk, possibly overlooked perforation of the channel during the first insertion as well as inappropriate behavior of patients. We were regularly removing the existing prosthesis trunk and upon osteofixation of the fracture point AO osteosynthesis, we fitted revising prosthesis depending on quality of bones and possible selection of prosthesis. Periprosthetic problems, such as ectopic ossification and trochanter fractures are rare indications for revision. We did not have it in our patients. It is necessary to emphasize that all the aforementioned complications rarely occur alone, and more often there are two or more complications. Therefore, aseptic loosening often occurs along with prosthesis dislocation. Loosening and infection regularly go together, progressive loss of the bone mass often accompany the femur diahpysis fracture and acetabulum protrusion. All of them make more complicated the delicate operations of the fitting of revising prosthesis which are complicated by their nature. CONCLUSION We presented 18 patients who had the revising arthroplasty hip joint made, causes of revision as we could see and explain them and gave possible reasons for their occurrence. Unfortunately, we could not precisely determine the time from the primary to revising operations. Out of 18 patients only two were primarily operated in our institution, and most of others somewhere in the former Yugoslavia. Following the postoperative period of our patients for five years, we did not have the cases of death, infections or tromboembolism. In one case, we had dislocation relapse, and in other case there was some pain in the upper leg without clinical and radiological sings of other complications. We emphasize that the following most optimum conditions, for this branch of surgery, should be met for the revising hip arthroplasty: experienced team of surgeons, good surgery theaters, wide range of implants and good instruments. Publication of papers including a small number of patients broadens the experience in certain fields, which is the reasons for our presentation. 63 Dusan Vlatkovic, Marko Vukovic REFERENCES 1. Gregori M., Alberton M., Whitney A. et all. Dislocationem after revision total hip arthroplasty. JBJS 2002; 84:10. 2. Pšorn V.: Indikacije za ugradnju totalnih proteza zgloba kuka. U Artroplastika kuka. 64-70, Medicinski fakultet Zagreb, l988. 3. Commings S. R., Rubin S.M.: The future of hip fractures in the United States. Numbers, costs and patient efects of the postmenstrual estrogen. Clin Orthop. 1990; 252:163. 4. Herman S.: ENDOPROTEZA KUKA. U Artroplastika kuka. Medicinski fakultet Zagreb. 1988; 140-144. 5. Beckenbaugh R., Ilstrup D., Total hip arthroplasty: A review of the hundred thirthy three cases with long follow up. J. Bone Joint Surg. 1978; 60A:306. 6. Collvile J., Raunio P.: Charnley low friction arthroplastys in rheumatoid arthritis: Study of complications and results of 378 arthroplastys. J. Bone Joint Surg. 1978; 60 B: 498503. 7. Crownisebield R.D., Brand R.A.: A stress analysisof the acetabular recontruction in protrusio acetabuli. J. Bone Joint Surg. 1983; 65A:495. 8. Harris W. H., Schiller A. L., Choler J. M. et all. Extensive localised bone resorption in the femur following total hip replacement. JBJS. 1976; 58A:612. 9. Woo. R. Moorey B., Dislocation of total hip prothesis. JBJS. 1992; 64A:1306. 10. Orlić D., Grospić R., Komplikacije u vezi ugradnje totalne endoproteze zgloba kuka. U Artroplastika kuka. 1986; 93-98. Medicinski fakultet Zagreb. 11. Cotes H. E., Favis M. P., Ritter M. A., Polyethilene wear with cemental backed acetabular cups. J. Bone Joint Surg. 1993; 75B:249. 12. Hozack W. J., Balderston at all. Cemented versus cementless total hip arthroplasty. A comparative study of equivalent patient populations. Clin. Orthop. 1993; 289:161. 13. Santarista S., Hoikka R., Ascola A. et all. Agresive granulomatosus laesions in cementless total hip arthroplasty. J. Bone Joint Surg. 1990; 72 B:986-990. 14. Maloney W. J., Justy M., Burke D. W. et all. Biomechanical and histological investigation of cemented total hip arthroplasty. Astudy of autopsy retrivied femurs after in vivo cycling. Clin. Orthop. 1989; 249:129. 15. Rao J. F., Bronstain R.: Dislocations following arthroplasty of the hip. Incidence, prevention and treatment. Orthop. Rev. 1991; 20:261. 16. Herman J. H., Sovder W. G., Anderson D. et all. Polimetil metacrilate induced release of bone resorbing factors. J. Bone Joint Surg. 1989; 71:A,1530. 17. Bobyn J. D., Moortiraer E. S., Glossman A. H. at all. Producing and amoiding stress shielding laboratory and clinical opservations of noncemented total hip arthroplasty. Clin. Art. 1992; 274:79. 18. Schulcer S. F. Harris W. H.: Deep infection after total hip replacement under asepticconditions. JBJS. 1988; 70 A: 724 . 19. Nelson J. P.; Deep infection following total hip arthroplasty. J. Bone Joint Surg. 1977; 59A:1042-1044. 20. Lyons C. W.: Evaluation of radiografic finding in painfull arthroplastys. Clin Orthrop. 1985; 195, 239-251. REVIZIONE ARTROPLASTIKE KUKA Dušan Vlatković, Marko Vuković Odjeljenje za opštu hirurgiju i ortopediju - Opšta bolnica Trebinje SAŽETAK Broj zahtjeva za revizijom ranije ugrađene proteze iz brojnih uzroka postao je čest i vjerovatno će biti u budućnosti još češći. Zahvatom se želi otkloniti neka od komplikacija vezanih za protetsku zamjenu zgloba kuka i njenu upotrebu. Uzroci su često međusobno vezani. To su biološki i problemi vezani za upotrebu proteze. Mislimo da i ponašanje bolesnika dovodi do određenog broja komplikacija. Za ovaj zahvat neophodna je iskusna ekipa, veliki izbor ugradbenog materijala i dobar instrumentarij. Mi smo cementirane proteze zamjenjivali cementiranim, sem u jednom slučaju, a necementirane necementiranim ili cementiranim. Provodili smo antitrombotičnu profilaksu i davali 4 dana visoke doze antibiotika. Uspravljanje pacijenta smo dozvoljavali zavisno od opšteg stanja pacijenta od 3 do 7 dana. Ključne riječi: reviziona artroplastika kuka, komplikacije primarne artroplastike 64 ACTA FAC MED NAISS UDC 616.24-006.6-073.75 Professional article ACTA FAC MED NAISS 2007; 24 (2): 65-69 Ljiljana Vasic Department of Radiation Oncology, University Hospital, University of Kragujevac, Kragujevac, Serbia A ROLE OF CYFRA 21-1 AMONG TUMOR MARKERS FOR NON-SMALL-CELL LUNG CANCER SUMMARY Lung cancer is the most common cancer worldwide. More than 1,000,000 new cases are registered each year. Therefore, it is not surprising that it has become a global problem, and a major focus of interest of thoracic oncologists on both hemispheres. The aim of this assay is to rewiew the main characteristics of available tumor markers used in NSCLC. CYFRA 21-1 shows the best sensitivity in NSCLC and higher sensitivity for squamous cell carcinoma than other histological subtypes, a good correlation with disease extent, and a strong specificity in non-malignant lung diseases. Before any treatment, CYFRA 21 – 1 shows the highest sensitivity for squamous cell carcinoma when compared to CEA, NSE, CA 19-9, CA 15-3 and CA 125. Therefore, CYFRA 21-1 is the marker of first choice in NSCLC. However, this marker is not suitable for early diagnosis of NSCLC. Combinations of markers, identified either by standard immunohistochemical techniques or by more novel complementary DNA arrays may prove quite useful for diagnosis and treatment of lung cancer. Key words: non-small-cell lung cancer, tumours markers, clinical practice INTRODUCTION Lung cancer is the most common cancer worldwide. More than 1,000,000 new cases are registered each year (1). Therefore, it is not surprising that it has become a global problem, and a major focus of interest of thoracic oncologists on both hemispheres. Its incidence makes it a major problem of public health. It is the most frequent cause of cancer-related deaths, representing 28.2% of all cancer deaths (2). Of patients who initially present with lung cancer, 55% have distant metastatic disease, 30% have disease spread to regional lymph nodes, and only 15% have disease confined to the lung (2). The achievements we made during the last several decades enabled incremental, but continuous, improvements in this field. With the wide introduction of computerized tomography (CT) scanning in the diagnostic approach of these tumors, we become capable of better imaging and, consequently, better clinical staging. Coupled with CT is a recent introduction of positron emission tomography (PET) scanning, combining morphological and functional imaging. These two imaging approaches are increasingly being combined in both diagnostic and therapeutic approaches. They also serve as a tool for evaluating treatment response. While the number of centers using this approach is still limited, it is not hard to imagine it bursting into Corresponding author. Tel: 381 (0)64 159 33 29, 381 (0)34 34 77 25 • E-mail: ljiljana76@eunet.yu 65 Ljiljana Vasic the future with consequential changes in imageoriented treatment decisions focusing more on tumor physiology. The main four histological types of lung cancer are squamous cell carcinoma, adenocarcinoma, large cell carcinoma and small cell carcinomaSCLC. The first three subtypes are generally combined on the heading of non-small-cell carcinoma (NSCLC) and account for approximatelely 80% of lung cancer (3). Surgical resection is the accepted treatment for patients with stage I and II NSCLC, with full lobar or greater resections preferable to sublobar resections. The performance of systematic mediastinal lymph node dissection improves the accuracy of staging and may have therapeutic benefits. There is no proven benefit of adjuvant or neoadjuvant chemotherapy for early stage NSCLC. At least 50% of these patients will develop local relapse or distant metastases (4). Furthermore, 70% of patients are inoperable at the time of presentation because of either locally advanced disease or distant metastases (5). Most patients with advanced disease ask for a specific treatment even if the possible benefit expected by currently available chemotherapy regimens is modest. CEA suggest tumor size and their progression is generally related to disease outcome. It sholud be noted that this marker can be substantially increased in smokers (6). Neuron specific enolase (NSE) was reported as higly suggestive of neuroendocrine tumors. It is considered as a marker of choice in small lung cancer where its sensitivity ranges 50-80% according to disease extent. Nevertheless, an increase of NSE can be expected in NSCLC. It has been suggested that it may be associated with neuroendocrine component of the tumor. In fact, NSE is frequently elevated in all subtypes of advanced NSCLC (7). Carbohydrat-antigen 19-9 (CA 19-9) is generally used as tumor marker in digestive, mainly pancreatic malignancies. Nevertheless, it has no clear specificity and does not seem to have any prognostic value. Carbohydrat-antigen 15-3 (CA 15-3) is a tumor marker mainly used in the therapeutic management of breast cancer. It can also be elevated in other malignancies especialy in advanced NSCLC. Carbohydrat-antigen 125 (CA -125) is a tumor marker mainly used in diagnosis and followup of ovarian tumors. It is frequently elevated in case of pleural effusions in case of lung tumors. Purpose of tumor markers in lung cancer CYFRA 21-1: Clinical characteristics of cytokeratins Large programs of screening in the population have failed to demonstrate any benefit for early detection of lung tumors and the vast majority of patients are diagnosed either by chance or when they present symptoms. Currently, there are no specific tumor markers enabling detection of lung cancer at an early stage. On the other hand, the diagnosis of relapse after curative treatment or the evaluation of the objective effect of systemic therapies are often difficult to determine and serum tumor markers can help in menagement of NSCLC as it is the case with other malignancies. The ideal profile of tumor markers should include sensitivity, specificity, prognostic value and ability to detect response and early recurrences. The aim of this assay was to rewiew the main characteristics of available tumor markers used in NSCLC. Characteristics of clinically used tumor markers in lung cancer treatment Carcinoembryonic antigen (CEA) is the most frequently used tumor marker in adult malignancies. Its sensitivity is about 30% in limited NSCLC and 55% in advanced NSCLC. Levels of 66 The cytokeratins are a part of intermediate filament protein group, wich is a major component of the cell cytoskeleton. There are 20 different cytokeratins with molecul weights ranging from 40 to 70 Kilodaltons (KD), classified according to their isoelectric point into two types: acid (type I), basic (type II). Low molecular weights are found in simple epithelium and heavy molecular weights are found in epidermis. Under the influence of intrinsic or extrinsic factors, each cell will express different types of cytokeratins in the course of its evolution. These factors have an important role in epidermal differentiation. The type of cytokeratin synthesized by a cell is also affected by the growth and differentiation rate. CYFRA 21-1 (cytokeratinfragment 21-1) is a fragment of cytokeratin 19 wich is a part of cytoskeleton in epithelial cells, and can be found in an overexpressed way in tumors of epithelial origin. CYFRA 21-1 shows the best sensitivity in NSCLC and higher sensitivity for squamous cell carcinoma than other histological subtypes, a good correlation with disease extent, and a strong specificity in non-malignant lung diseases. Before any treatment, CYFRA 21 – 1 shows the highest sensitivity for squamous cell carcinoma when A role of CYFRA 21-1 between tumor markers for non-small-cell lung cancer compared to CEA, NSE, CA 19-9, CA 15-3 and CA 125. Therefore, CYFRA 21-1 is the marker of first choice in NSCLC (8, 9). For the diagnosis of adenocarcinoma, the combination of the markers CYFRA 21-1 and CEAis recommended (10). However, this marker is not suitable for early diagnosis of NSCLC (8). Tumor marker analyses can be of great importance in the follow-up patients under treatment. Post-surgical values show that CYFRA 21-1 is closely correlated with radical surgery of the tumor mass. Nevertheless, a residual tumor mass without marker production cannot be excluded completely. Furthermore, CYFRA 21-1 gives, when initially increased, an accurate estimate of the efectiveness of chemotherapy and radiotherapy of NSCLC, but cannot differentiate between complete and partial remission with ultimate certainty (11-13). Serial measurement of serum concentration of tumor markers during follow-up can serve for early detection of tumor progression. This fact was proved by NSE in SCLC and by CYFRA 21-1 in squamous cell carcinoma. There are different opinions about the clinical value of such an early recognition of tumor progression. CONCLUSION Physicians are still looking for ideal tumor markers in malignant diseases, useful for patient screening, early diagnosis, prognosis and therapeutic monitoring. Most tumor markers tested in NSCLC are today of poor or moderate sensitivity and specificity and cannot be proposed for screening. During the past ten years, considerable insight has been obtained regarding the molecular basis of lung cancer. As a result, numerous studies have been performed to ascertain if spesific mutational events have unique prognostic significance. In particular, these transitional efforts have focused on common aberrations regarding expression of genes regulating cell/cycle progression, apopotosis, invasion and metastasis. Many growth factor/receptor systems are expressed by either the lung tumor or adjacent normal cells, thus providing autocrine or paracrine growth stimulatory loops. These are excellent new terapeutic targets. Overexpression of epidermal growth factor receptor (EGFR) is observed in approximately 70% of NSCLCs and may be a prognostic factor for poor survival (15). Coexpression of EGFRs and their ligands, especially transforming growth factor – α, by lung cancer cells indicates the presence of an autocrine growth factor loop (16). Gefitinib (ZD 1839, Iressa) is a specific inhibitor of EGFR-tyrosine kinase that demonstrates antitumor activity in patients with NSCLC. Monoclonal antibodies against the extracellular domain of EGFR, such as C225, are another way of therapeutic targeting this key pathway (17). ERBB2 (HER 2/neu) is higly expressed in more than a third of NSCLCs, especially adenocarcinomas, although gene amplification as seen in breast cancer is not usually the underlying mechanisam in lung cancer. A meta-analysis suggested that overexpression of ERBB2 is a factor of poor prognosis for survival in NSCLC (18). Trastuzumab (Herceptin ®), a recombinant humanized monoclonal antibody that recognizes HER2, thus blocking its activity, is being tested for efficacy in NSCLC as a single agent or in combination with chemotherapy (19). Overexpression of epidermal growth factor receptor (EGFR), particularly ERBB2, correlates with survival in lung cancer patients after resections. Increased expression of mitogen-activated protein kinase as well as K-RAS and p53 mutations correlate with adverse outcome in lung cancer patients (14-15, 20-22). Given the molecular heterogeneity of lung cancer, it is not surprising that no single biomarker has emerged that uniformly correlates with prognosis in lung cancer patients. On the other hand, combinations of markers, identified either by standard immunohistochemical techniques or by more novel complementary DNA arrays may prove quite useful for diagnosis and treatment of lung cancer. Nevertheless, together with this prognostic factors, a tumor marker can be used to monitor the clinical course, treatment and follow-up of patients. 67 Ljiljana Vasic REFERENCES 1. Cancer Reaserch Campaign. CRC Cancerstats: lung cancer and smoking - UK. 2001. 2. Edwards BK, Howe HL, Ries LA, et al: Annual report to the nation on the status of cancer, 1973-1999, featuring implications of age and aging on U.S. cancer burden. Cancer 2002; 94: 2766-92. 3. Landis SH, Murray T, Bolden S, et al. Cancer statistic, 1998. CACancer J Clin 1997; 48:6-29. 4. Chang YM, Sugarbaker D. Surgery for Early Stage Non/small Cell Lung Cancer. Seminars in Surgical Oncology 2003; 21:74-84. 5. Grunenwald D Surgery for Locally Advanced Non/Small Cell Lung Cancer. Seminars in Surgical Oncology 2003; 21:85-90. 6. Rastel D, Comoy E, Fatal S Pre and post operative values of CYFRA 21-1, CEA and NSE in primary lung cancer. Eur J Cancer 1993, 29(6):247. 7. Radosevic Z. Tumori bronhopulmonalnog sustava i medijastinuma U: Turic M, Kolaric K, Eljuga D (urd.) Klinicka onkologija, Nakladni zavod Zagreb, Zagreb, 1996; 275. 8. Rastel D, Ramaioli A, Thirion B CYFRA 21-1, a sensitive and specific new tumour marker for squamous cell lung cancer. Report of the first European Multicentre Evaluation. Eur J Cancer 1994; 30(5): 601-6. 9. Pujol JL, Grenier J, Daver A Serum fragment of cytokeratin subunit 19 measured by CYFRA 21-1 immunoradiometric assay as a marker og lung cancer. Cancer Res 1993; 53:61-6. 10. Veronesi G Tumour CEA as predictor of better outcome in squamous cell carcinoma of the lung. Lung Cancer 2005; 48(2); 233-240. 11. Levasseur PR CYFRA 21-1: Follow-up after surgery. Immunoanal Biol Spec 1994; 9:40-42. 12. Thomas P, Kleisbauer JP CYFRA 21-1: Follow-up after chemotherapy. Immunoanal Biol Spec 1998;12:60-2. 13. Tuchais C CYFRA 21-1: Follow-up after radiotherapy. Cancer Res 1999; 73 (6):81-6. 14. Minic V, Andjelic G, Stanic V, Magic Z Ras gene mutations in patients with non-small cell lung ca rcinoma Arch Oncol 2004;12(2):95-9. 68 15. Tai AL, Fang Y, Iham JS, Deng W, Hu L, Xie D. Establishment and characterisaction of a human non-small cell lung cancer cell line. Oncol Rep 2005;13(6):1029-32. 16. Eberhard DA, Johnson BE, Amler LC,Goddard AD, Heldens SL, Herbst RS, et al. Mutations in the Epidermal Growth Factor Receptor and in KRAS Are Predictive and Prognostic Indicators in Patients With Non–Small-Cell Lung Cancer Treated With Chemotherapy Alone and in Combination With Erlotinib. Clin Oncol 2005; 23(25):5900-9. 17. Suzuki T, Nakagawa T, Endo H, Mitsudomi T, MasudaA, Yatabe Y, et al. The sensitivity of lung cancer cell lines to the EGFR-selective tyrosine kinase inhibitor ZD1839 ('Iressa') is not related to the expression of EGFR or HER-2 or to K-ras gene status. Lung Cancer 2003;42(1):35-41. 18. Pelosi G, Del Curto B, Dell'Orto P, Pasini F, Veronesi G, Spaggiari L, et al. Lack of prognostic implications of HER-2/neu abnormalities in 345 stage I non-small cell carcinomas (NSCLC) and 207 stage I-III neuroendocrine tumours (NET) of the lung. Int J Cancer 2005;113(1):101-8. 19. Langer CJ, Stephenson P, Thor A, Vangel M, Johnson DH Trastuzumab in the Treatment of Advanced NonSmall-Cell Lung Cancer: Is There a Role? Focus on Eastern Cooperative Oncology Group Study 2598. Clin Oncol 2004; 22(7):1180-7. 20. Traxler P, Allegrini P, Brandt R, Brueggen J, Cozeus R, Fabbro D, Grosios K. A dual family epidermal growth factor receptor/ErbB2 and vascular endothelial growth factor receptor tyrosine kinase inhibitor with antitumor and antiangiogenic activity, Cancer Res 2004;64:4931-4941. 21. Meert AP, Martin B, Verdebout JM, Paesmans M, Berghmans T, Ninane V, Sculier JP. Correlation of different markers (p53, EGF-R, c-erbB-2, Ki-67) expression in the diagnostic biopsies and the corresponding resected tumors in non-small cell lung cancer. Lung Cancer 2004; 44(3):295-301. 22. Minami Y. Prognostication of small-sized primary pulmonary adenocarcinomas by histopatological and kariometric analysiy Lung Cancer 2005; 48(3): 339-348. A role of CYFRA 21-1 between tumor markers for non-small-cell lung cancer ULOGA CYFRA 21-1 MEĐU TUMORSKIM MARKERIMA ZA ODREĐIVANJE NEMIKROCELULARNOG KARCINOMA PLUĆA Ljiljana Vasić Centar za onkologiju, Odeljenje radioterapije KC Kragujevac, Kragujevac, Srbija SAŽETAK Karcinom pluća je širom sveta najčešći malignitet. Preko 1000000 novih slučajeva otkrije se tokom svake godine. Zbog toga ne čudi što je opšti problem i glavno interesovanje grudnih onkologa na obe hemisfere. Cilj ovog rada bio je da prikaže glavne karakteristike dostupnih tumorskih markera koji se mogu koristiti u kliničkoj praksi NSCLC. CYFRA 21-1 je senzitivan u NSCLC, posebno u slučaju skvamocelularnog podtipa, ukazujući na proširenost bolesti i visoko je specifičan među bolestima pluća nemaligne etiologije. Pre započetog bilo kog lečenja, CYFRA 21-1 pokazuje visoku specifičnost među skvamocelularnim karcinomima u odnosu na CEA, NSE, CA 19-9, CA15-3 i CA125. Zbog toga je CYFRA21-1 tumorski marker izbora u slučaju NSCLC. Za adenokarcinome preporučuje se kombinacija markera CYFRA 21-1 i CEA. Međutim, ovaj marker nije pogodan za ranu dijagnozu NSCLC. Jedino kombinacija markera, identifikovanih bilo imunohistohemijski ili komplementarnim novim DNA istraživanjima, mogu biti vrlo korisni za dijagnozu i lečenje karcinoma pluća. Bez obzira na sve, sa navedenim prognostičkim faktorima, tumorski marker se može koristiti za nadgledanje kliničkog toka, lečenja i preživljavanje bolesnika. Ključne reči: nemikrocelularni karcinom pluća, tumorski markeri, klinička praksa 69 ACTA FAC MED NAISS UDC 619:616.993.1:636.7 Original article ACTA FAC MED NAISS 2007; 24 (2): 71-74 1 Aleksandar Tasic 1,2 Suzana Tasic 1,2 Natasa Miladinović-Tasic 1 Dragan Zdravkovic 3 Jovana Djordjevic 1 Public Health Institute Nis Faculty of Medicine in Nis 3 Student of Medicine PREVALENCE OF DIROFILARIA REPENS CAUSE OF ZOONOSIS IN DOGS 2 SUMMARY Systematic research of zoonosis caused by species Dirofilaria repens have not been performed till now in Serbia, so that this is the first such study. The aim of the paper was to detect and identify the presence of Dirofilaria repens microfilariae in the canine peripheral blood, covering the territory of Serbia (territory of the City of Nis and Vojvodina). The examination comprised a total of 45 dogs from the territory of the City of Nis and 193 dogs from the territory of Vojvodina. For detection of microfilariae in the canine peripheral blood, a modified Knott's test was used. Identification of Dirofilaria repens microfilariae was performed according to their morphological and morphometric characteristics. All morphometric parameters were obtained using a modern automatic television system for picture analysis Lucia M (NIKON, 3.51 ab). By diagnostic technique application, the species Dirofilaria repens was identified in 95 dogs (49.22%) at the territory of Vojvodina, which is a significant district area for canine filarioses and transitional hosts for filariae. At the territory of the City of Nis, microfilariae of Dirofilaria repens were not found in any of the examined dogs. Key words: Dirofilaria repens, zoonosis, canine filariosis INTRODUCTION Filariae of the genus Dirofilaria, the cause of zoonosis in nature, are frequent parasites of various animal species worlwide. For these filariae's life cycle development, two hosts are needed, a mosquito or some other transient host, as well as a man who gets infected by the infected insect's bite (1,2). The important filaria, which can cause infection in humans, is certainly Dirofilaria repens. Mostly, this filaria resides in the cutaneous and subcutaneous tissue of animals, usually dogs. Infection in humans occurs sporadically, but so far, the cases of superficial and visceral forms of human dirofilariases have been described (1-4). The whole larval development of this parasite up to the infective stage III goes on in the appropriate transient host without multiplication. After being ingested with the blood meal taken from the infected host, microfilariae further migrate into the inner organs of mosquito, where they terminate their larval development in the course of 14-21 days. Infective stage III larvae migrate into the thorax and labium, from where they are inoculated into the dog by mosquito or some other transient host ( 5-9). At the moment when the infected mosquito or some other transient host bites the dog, the labium bursts into small larvae, which reside in it, and go into the wound on the skin, made by biting. In the subcutaneous and fatty tissue, and musculature of the dog, the larvae spend 85-120 days, during which they attain the length of 5 cm, approximately. Then, they Corresponding author. Tel: 381 18 226 384; fax: 381 18 238 770 • E-mail: atasic@bankerinter.net 71 Aleksandar Tasic, Suzana Tasic, Natasa Miladinović-Tasic, Dragan Zdravkovic, Jovana Djordjevic penetrate into the blood and lymphatic vessels (5-9). The adult forms reside in the subcutaneous tissue and lymphatic vessels, whereas microfilariae can be detected in the blood and skin. Some papers stress the importance of filariasis in medicine by presenting 56 cases of human ocular filariasis (4,10,11). Only in six cases, the extirpation from the eye, description and identification of parasites were successful. In three cases, the cause was Dipetalonema sp., and in one case Dirofilaria sp. Dirofilariasis in dogs is an endemic disease, spread in the tropics, inclining to spread into the regions with moderate climate. With geographical spreading of infection caused by D.repens in dogs, more frequent infections in humans caused by these species of parasites should be expected. Therefore, an appropriate importance should be attached to continuous control and follow-up of the occurrence and distribution of filariasis in dogs as a health problem. Dirofilaria repens, the cause of zoonosis in Europe, have been discovered at the territory of Serbia, too. Until our investigation conducted in 2004, Vojvodina was suspected of being endemic region with canine filariosis, since it abounds with great areas of stagnant waters and big plain rivers with slow water currents. Some identified sporadic cases of canine and human dirofilarioses in this region illustrate this (2,3,10,11). The aim of this paper was to identify the presence of Dirofilaria repens microfilariae in the canine peripheral blood, covering the territory of Vojvodina, some regions that represent mosquito districts, and the territory of the City of Nis. literature criteria (8,12). All morphometric parameters were obtained using a modern automatic television system for picture analysis Lucia M 1996 (NIKON, 3.51 ab). RESULTS Using the aforementioned diagnostic methods, microfilariae were determined in the peripheral blood in total of 95 (49.22%) examined dogs from Vojvodina (Table 1, Figure 1). At the territory of the City of Nis, microfilariae of Dirofilaria repens were not found in any of the examined dogs, as presented in Table 1. Table 1. Finding of microfilariae in canine blood at the territory of Vojvodina and Nis Locations Examined dogs Dirofilaria repens number/% Vojvodina 193 95/49.22% Nis 45 0 MATERIAL AND METHODS The samples of peripheral blood taken from dogs living at the territory of Vojvodina and the City of Nis were investigated in this paper. Examination comprised 193 dogs from Vojvodina and 45 working dogs from Nis, which were kept under the regime of controlled life conditions (standardized conditions of accommodation, nutrition, care, training, work, health protection, and veterinary-sanitary protection). These dogs had not left our country until the moment of examination. Immediately before blood sampling, a general clinical examination of every single dog was performed. For detection and identification of microfilariae in the canine peripheral blood in this research, the modified Knott's test was used (8). Identification of microfilariae was performed based on their morphological and morphometric characteristics, following the 72 Figure 1. Microfilaria of species Dirofilaria repens in canine blood DISCUSSION Human infections caused by dirofilariae are rare in Serbia and Montenegro, and so far, some sporadic cases of visceral and superficial filariosis caused by species D. repens have been described (4,11). Systematic researches of this parasitosis of dogs in our country have not been performed until now, so this is the first study of that kind. In recent years, several epidemiological studies have been performed in different countries. Parasites are widely distributed in Africa, Asia, Australia, Latin America and Mediterranean counties (13-15). Prevalence of Dirofilaria repens - cause of zoonosis in dogs In Croatia (former republic of Yugoslavia), D. repens infection of dog sporadically reported in the past are now being reported with quite high prevalence (6%) (16). Increased prevalence and infection spread was also found for D. repens in other European countries, such as Spain and Greece (16,17). Results of the investigations indicated that examined dogs from the territory of Vojvodina were significantly infected by D. repens (95 /49.22%), which thoroughly coincided with results of numerous authors who investigated filariosis spreading in Europe (17-21). Since the territory of Vojvodina abounds with great stagnant water areas (marshes, swamps, canals, effluents, stagnant tributaries) and great plain rivers with slow water currents, it can be regarded as a district area for a great number of different kinds of potential transient hosts for different species of filariae. This survey also included our region, but contrary to Vojvodina, not a single infected dog was registered at the territory of the City of Nis. CONCLUSION The prevalence of infection in 95 dogs (49.22%) with D. repens at the territory of Vojvodina indicates that this zoonosis deserves special attention in the sense of further investigations and undertaking appropriate measures, so as to diminish the possibility of infection. The territory of the City of Nis is not the region with canine filariosis. REFERENCES 1. Blitva-Mihajlovic G, Ralic M., Miletić B. Bolest srcane gliste. Simpozijum Male zivotinje – zivot i zdravlje. Beograd, 1995. 2. Kulisic Z, Misic Z, Milosavljevic P, Popovic N. Dirofilarioza pasa u Jugoslaviji. 8. Savetovanje veterinara Srbije. Zlatibor, 1995. 3. Milosavljevic P, Kulisic Z. Prvi slucajevi dirofilarioze pasa u Jugoslaviji. Veterinarski glasnik 1989; 43; (1): 71-76. 4. Beaver P C. Intraocular filariasis: a brief review. Am J Trop Med Hyg 1989: 40 (1): 40-45. 5. Flynn J R. Parasites of laboratory animals. The Iowa State University Press /AMES, Ied 1973.. 6. Сонин, М. Д.: Основы нематодологии, том XXIV, Филяриаты животных и человека и вызываемые ими заболевания, часть третья, Филярииды, онхоцерцины. Издательство "Наука", Москва, 1975. 7. Brumpt E. Précis de parasitologie. Sixième édition. Paris, 1949. 8. Kelly J D. Canine Parasitology. Veterinary Review 1977; 17: 25-33. 9. Simic, C, Petrovic Z. Helminti coveka i domacih zivotinja. Beograd, 1962. 10. Tasic A, Katic-Radivojevic S, Klun I, Misic Z, Ilic Prevalencija filarioza pasa u nekim T, Dimitrijevic S. područjima Vojvodine. 15. Savetovanje veterinara Srbije. Zlatibor, 2003. 11. Džamić A, Arsić-Arsenijević V, Radonjić I, Mitrović S, Marty P, Kranjčić-Zec I. Subcutaneous Dirofilaria repens infection of the eyelid in Serbia. Parasite 2004; 11: 23940. 12. Eckert J, Kutzer E, Rommel M, Bürger JH, Körting W. Veterinärmedizinische Parasitologie. 1992, Verlag Paul Parey, Berlin und Hamburg, 1992, 613-623. 13. Quinn PJ, Donnelly WJC, Carter ME, Markey BKJ, Torgerson PR, Breathanh RMS. Microbial and Parasitic Disease of Dog and Cat. London 1997; 267-271. 14. Mehlohrn H. Encyclopedic Reference of Parasitology, Disease, Treatment, Therapy 2nd ed., Dusseldorf, Germany, 2001, 100-101. 15. Muro A, Genchi C, Cordero M, Simon F. Human dirofilariasis in the European Union Parasitol Today 1999; 15: 386-389. 16. Genchi C, Rinaldi L, Cascone C, Mortarino M, Cringoli G. Is Hearthworm Disease Really Spreading in Europe? Vet Parasitol 2005; 133: 137-148. 17. Aranda C, Panyella O, Eritja R, Castella J. Canine filariasis. Importance and transmission in the Baix Llobregat area, Barcelona (Spain). Vet Parasitol 1998; 77 (4): 267-275. 18. Petrocheilou V, Theodorakis M, Williams J, Prifti H,. Georgilis K, Apostolopoulou I, Mavrikakis M. Microfilaremia from a Dirofilaria-like parasite in Greece. Case report.APMIS 1998; 106 (2): 315-318. 19. Rossi L, Pollono F, Meneguz PG, Gribaudo L, Balbo T. An eidemiological study of canine filarioses in NorthWest Italy: What has changed in 25 years? Vet Res Commun 1996; 20: 308-315. 20. Van Heerden J,. Verster A, Gouws DJ. Neostigmine-responsive weakness and glomerulonephritis associated with heartworm Dirofilaria immitis infestation in a dog. J SAfr VetAssoc 1980; 51 (4): 251-253. 21. Zahler M, Glaser B, Gothe R. Imported parasites in dogs: Dirofilaria repens and Dipetalonema reconditum. Tierarztl Prax 1997; 25 (4): 388-392. 73 Aleksandar Tasic, Suzana Tasic, Natasa Miladinović-Tasic, Dragan Zdravkovic, Jovana Djordjevic PREVALENCA DIROFILARIA-E REPENS KAO UZROČNIKA ZOONOZE KOD PASA Aleksandar Tasić1, Suzana Tasić1,2, Nataša Miladinović-Tasić1,2, Dragan Zdravković1, Jovana Đorđević3 1 Zavod za zaštitu zdravlja, Niš 2 Medicinski fakultet u Nišu 3 Student medicine SAŽETAK Studija predstavlja prvo istraživanje u ovoj oblasti u našoj zemlji jer do danas, sistemska ispitivanja vezana za zoonoze izazvane vrstom Dirofilaria repens na teritoriji Srbije nisu urađena. Cilj rada bio je utvrditi prisustvo i identifikovati mikrofilarije vrste Dirofilaria repens u perifernoj krvi pasa na teritoriji Srbije (Niš i Vojvodina). Istraživanjem je obuhvaćeno 45 pasa iz našeg regiona i 193 sa teritorije Vojvodine. Za detekciju mikrofilarija u perifernoj krvi pasa korišćen je modifikovani Knott test. Identifikacija vrste Dirofilaria repens izvršena je na osnovu njihovih morfoloških i morfometrijskih karakteristika. Svi morfometrijski parametri utvrđeni su korišćenjem modernog automatskog televizijskog sistema za analizu slike Lucia M (NIKON, 3.51 ab). Primenom dijagnostičkih tehnika, vrsta Dirofilaria repens, identifikovana je kod 95 (49,22%) pasa na teritoriji Vojvodine što ukazuje da ovo područje predstavlja distrikt za filarioze pasa i prelazne domaćine filarija. Na teritoriji grada Niša, ni kod jednog ispitivanog psa nije utvrđeno prisustvo mikrofilarija vrste Dirofilaria repens. Ključne reči: Dirofilaria repens, zoonoze, filarioze pasa 74 ACTA FAC MED NAISS UDC 616.89-008.44:159.97 Original article ACTA FAC MED NAISS 2007; 24 (2): 75-81 1 Maja Simonovic 1,2 Grozdanko Grbesa 1 Clinic for Mental Health Protection, Neurology and Psychiatry of the Developmental Age, Department for Stress Related Disorders, Clinical Center Nis 2 Faculty of Medicine CLINICAL PRESENTATION OF COMORBID DEPRESSION AND POST-TRAUMATIC STRESS DISORDER SUMMARY Comorbidity of post-traumatic stress disorder (PTSD) and depression offers the possibility to explore a broad spectrum of interactions of mood and anxiety disorders in several domains: in the domain of clinical presentation as well as in the treatment effectiveness and in the domain of pathophysiology of the two disorders. The aim of the paper was to determine characteristics of the clinical presentation of comorbid PTSD and depression. The investigation included 60 patients assessed by means of the following intruments: The Structured Clinical Interview for DSM-IV AXIS I Disorders, Investigator Version (SCID-I (modified), (SCID for DSM-IV), Clinician-Administrated PTSD Scale for DSM-IV (CAPSDX), Montgomery-Asberg Depression Rating Scale (MADRS) and 17item Hamilton Rating Scale for Depression (HAMD). The data were analyzed using the methods of descriptive statistics. Differences between groups were evaluated using the t- test. The results obtained indicated that comorbidity of depression and PTSD is associated with higher intensity of intrusive symptoms' cluster, especially with flash-backs and intrusive thoughts distinctive to either PTSD or to depression, with broader spectrum of emotional and mood experiences and with more patient's suffering. The analysis of the clinical presentation and complex spectrum of interactions of depression and PTSD inclusively enabled better understanding of symptoms presented by the patients, choice of the more effective treatment strategies and shed some light onto possible mechanisms of the human reactivity to extreme traumatic experiences. Key words: comorbidity, depression, PTSD INTRODUCTION The category of post-traumatic stress disorder provided an extraordinary potential to understand the human reactivity to extreme traumatic events. The symptoms of this nozological entity – intrusive, numbing and hyperarousal symptoms comprise a broad range of mental phenomena and conceptualize them into a unitary whole. The destiny of the sensory input and altered information processing that lead to the change of the Corresponding author. Mob.tel: 063 1094323, fax 018 232 421 • E-mail: maja.sim@bankerinter.net 75 Maja Simonovic, Grozdanko Grbesa process of perception, reactivity and reasoning, and to the formation of the post-traumatic stress disorder symptoms have been perfectly conceptualized so far. There was not sufficient effort invested in order to investigate the affects encompassing traumatization, and investigate persistent consequences of the traumatic events on emotional states or mood. The epidemiological data in our country indicate an increasing number of the cases diagnozed as post-traumatic stress disorder and depressive reactions (1). Psychiatrists in clinical practice are faced with the following problem: precise diagnosis of the complaints presented by a patient is needed in the shortest possible time. Only precise diagnosis completed on time enables the implementation of the efficacious therapeutic programme which is of the utmost importance in the treatment of reactive states (2). A well-known fact is that diagnostics in the initial stages of illness is always difficult. Traumatized persons develop a broad range of complaints – they present global and broad picture of disturbance reflecting many different symptoms (35). The group of registered symptoms refers most often to post-traumatic stress disorder as well as to depression. The problem in differential diagnosis of those entities is due to the facts that there are significant symptoms overlapping between two disorders, and due to the fact that post-traumatic stress disorder and depression most often are developed as comorbid disorders (6). Our motive was to analyze delineated psychiatric entities and their interaction. Using the standard methodological inventary for characterization of depression and post-traumatic stress disorder, we analyzed the elements of the clinical presentation which indicate that the person suffers from comorbid post-traumatic stress disorder and depression. The results of the investigation will enable better diagnosis and therapy of traumatized persons. The interpretation of results in the light of patophysiological mechanisms underlying the symptoms enables the insight in the posssible mechanisms of interaction of two disorders whose occurrence in comorbidity is common. The aim of the paper was to determine the characteristics of clinical presentation of the comorbid complex of symptoms of post-traumatic stress disorder and of depression and to determine whether the use of the clinical intruments for measuring the presence and intensity of disorders enables valid diagnosis of the comorbidity of delineated disorders. 76 MATERIAL AND METHODS The investigation was performed at the Department for Post-traumatic Stress Disorder at the Clinic for Mental Health Protection in Nis, from July 1999 to December 2000, according to recommendation of the expert team recommended for the investigation of post-traumatic stress disorder (7). There were 60 subjects divided in two groups: the experimental group consisted of the subjects meeting DSM-IV criteria for post-traumatic stress disorder and for comorbid depressive episode. The control group comprised subjects meeting criteria for Posttraumatic Stress Disorder only. The initial diagnosis was performed using the Structured Clinical Interview for DSM-IV AXIS I Disorders, Investigator Version (SCID-I) (modified) to establish the diagnosis of Post-traumatic Stress Disorder (PTSD) and major depressive episode (MDE) (8). After initial assessment, we administrated the following instruments for measuring the presence and intensity of disorders: Clinician-Administrated PTSD Scale for DSM-IV (CAPS-DX), Montgomery-Asberg Depression Rating Scale (MADRS) and 17-item Hamilton Rating Scale for Depression (HAMD) (911). The data analysis was performed using the t-test. RESULTS Comparison of the results in experimental and in control groups on CAPS instrument (Tables 14) showed that the two groups differed most significantly (p<0,001) in the following symptoms: flash-backs and acting or feeling as events were recurring, diminished interest in activities, detachment or estrangement, restricted range of affect, in the level of total score of the avoidance and restriction of affect symptom cluster and the level of total CAPS score. Differences of less significant levels (p<0,01) were found in the following symptoms: intrusive recollections, the level of total score of the intrusive cluster symptoms and the level of total score of the hyperarousal cluster (Table 1 – 4). The symptoms: psychological distress, avoidance of thoughts, sense of forshortened future, sleep disurbance, difficulty concentrating, exaggerated strartle response differed in the least level of significance (p<0,05) in experimental and in control group (Tables 1 – 4). The symptoms on the CAPS instrument: distressing dreams, physiological reactivity, irrritability or outburst of anger did not differ significantly. Clinical Presentation of Comorbid Depression and Post-traumatic Stress Disorder Presentation of results on CAPS instrument in experimental and control group Table 1. Values of intrusive symptoms in subjects with PTSD and PTSD-D Table 2. Values of symptoms of avoidance and constrictions of affect in subjects with PTSD and PTSD-D Table 3. Values of hyperarousal symptoms in subjects with PTSD and PTSD-D Table 4. Values of total CAPS score in subjects with PTSD and PTSD-D Comparison of the results on MADRS instrument showed that all the symptoms differed on MADRS instrument (Table 5). Table 5. Values of MADRS score in subjects with PTSd and PTSD-D 77 Maja Simonovic, Grozdanko Grbesa The most significant difference (p<0,001) found using MADRS instrument was in the following symptoms: apparent sadness, reported sadness, reduced sleep, lassitude, inability to feel, pessimistic thoughts, suicidal thoughts and in the total MADRS score. The difference at the lower level of significance was found in the following symptoms (p<0,01): inner tension, reduced appetite and concentration difficulties. Comparison of the HAMD scores of the experimental and control group showed that the two groups differed most significantly (p<0,001) in the symptoms: depressed mood, guilt, suicide, work and interests, retardation, agitation, psychic anxiety, somatic anxiety, gastrointestinal somatic symptoms, general somatic symptoms, genital symptoms, loss of weight and in the level of total HAMD score (Table 6). diagnosis of disturbances presented by a patient. Application of the aforementioned instruments makes possible identification and estimation of the severity of the comorbid depressive episode despite the existance of the overlapping symptoms of posttraumatic stress disorder and depression, by which the danger in everyday clinical work is eliminated, cited by Blank, and which we experienced ourselves that depressive episode can be ommitted and undiagnosed because it is overshadowed by the flamboyant picture of the reactive state (12). Our results are in accordance with the results of the study of Blanshard, which states that posttraumatic stress and depression are not manifestations of the same unitary response to trauma. They are different disorders and not slightly different manifestations of the same disorders, which confirmed Table 6. Values of HAMD score in subjects with PTSd and PTSD-D PTSD (1) X SD H1 Depressed mood 1.53 0.57 H2 Guilt 1.03 0.41 H3 Suicide 0.00 0.00 H4 Insomnia (initial) 1.77 0.57 H5 Insomnia (middle) 1.90 0.31 H6 Insomnia (late) 1.83 0.46 H7 Work and activity 1.50 0.68 H8 Retardation 0.47 0.51 H9 Agitation 1.20 0.55 H10 Anxiety-psychic 1.37 0.49 H11 Anxiety-somatic 1.60 0.50 H12 Somatic symptoms-gastrointestinal 0.20 0.41 H13 Somatic symptoms-general 0.90 0.71 H14 Genital symptoms 0.17 0.38 H15 Hypochondriasis 0.53 0.78 H16 Loss of weight 0.03 0.18 H17 Insight 0.00 0.00 HAMDtot 16.03 2.43 HAMD The experimental and control group did not differ in the following symptoms: initial insomnia, middle insomnia, late insomnia, hypochondriasis and insight. DISCUSSION The results obtained indicate that clinical presentation of the comorbid complex of symptoms of post-traumatic stress disorder and depression differ significantly from the presentation of posttraumatic stress disorders without depression, which enabled making conclusions important for clinical work. In this way, it was confirmed that the use of delineated clinical instruments permits precise 78 PTSD-D (1) Cv X SD 37.26 3.07 0.45 40.05 2.03 0.41 1.17 0.87 32.17 1.97 0.18 16.06 1.97 0.18 25.15 1.93 0.25 45.49 3.10 0.96 108.73 1.23 0.68 45.91 2.17 0.75 35.86 2.27 0.58 31.14 2.73 0.52 203.42 1.63 0.49 79.11 2.00 0.00 227.43 1.80 0.48 145.51 0.83 0.79 547.72 1.13 0.82 0.17 0.53 15.14 31.20 3.52 t Cv 14.67 11.55 20.35 9.36 74.94 7.31 9.28 1.84 9.28 1.03 13.12 1.04 30.95 7.44 55.05 4.95 34.46 5.71 25.73 6.47 19.05 8.61 30.01 12.32 0.00 8.46 26.90 14.55 94.98 1.48 72.29 7.18 318.40 1.72 11.27 19.44 p 0.0000 0.0000 0.0000 0.0716 0.3087 0.3023 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.0000 0.1437 0.0000 0.0907 0.0000 the validity of clinical construct of post-traumatic stress disorder and confirmed that neither the correlation is the illusion, as Yehuda doubted, nor the epiphenomenon of the imperfect diagnostic criteria used for those disorders (13-15). Further analyses of the results showed that clinical presentation of the comorbid complex of symptoms of post-traumatic stress disorders and depression differs significantly from the presentation of post-traumatic stress disorder with no depression in certain symptom clusters. Delineated symptom clusters can be used as an indicator for the immediate orientation of a clinician that a patient suffers from both post-traumatic stress disorder and depression, so there is no danger that depressive episode can be overshadowed, undiagnosed and not cured. Clinical Presentation of Comorbid Depression and Post-traumatic Stress Disorder The result showed that clinical presentation of comorbid complex symptoms of post-traumatic stress disorder and depression is characterized by more intense intrusive symptom cluster, more intense affective disturbances, but probably with growing tendency of the patients to report the symptomatology of affects and by the greater global disturbance and subjective suffering. The first characteristic of comorbidity of post-traumatic stress disorder and depression is more intense intrusive symptom cluster. At first glance, the greatest difference in B3 symptom – flash backs and reexperience of events between experimental and control group was surprising. Symptom B3, dissociative by its genesis, correlated by its significance with the symptoms of affective cluster that indicated its importance and that it is strengthened by the comorbid depressive reactivity. The explanation for this elevation was found in the literature that the visual cortex stimulation, where flash-backs phenomena are generated, is an automatic concequence of the stimulation of amigdala, which is philogenetically originated and is present disregarding the physical properties of the stimuli. More intense visual cortex stimulation upon exposure of disturbing stimuli occurs more often in depressive subjects than in control ones, which was also found in this investigation (16). The intrusive symptomatology regarding B2 symptom – intrusive thoughts and recollections refers, perhaps, to the increased cognitive activity which depression brings into post-traumatic stress disorder. Current understanding does not permit one to take the standpoint if it were a manifestation of an interaction mechanism–of an affect-based activation of the contents of traumatic memory or of intensified efforts to integrate fragmented elements of traumatic event. The data in traditional psychiatric literature point to the fact that formation of traumatic script, creation of narrative, telling the story of event is a reliable and well-known process of semantic memory activation, enabling mastering the traumatic event and putting the event into the past (17). The conclusion indicates that depression in post-traumatic stress disorder brings intensified cognitive activity – higher frequency and intensity of intrusive thoughts. The concequences of this phenominon have not been analyzed so far, but this area, together with the nature and complexity of mental intrusions deserves further investigation. Another characteristic of comorbidity of post-traumatic stress disorder and depression is higher intensity of symptoms associated with affecti- ve symptomatology whithin post-traumatic stress disorder associated with symptomatology of depression. Conclusively, the patients with post-traumatic stress disorder and comorbid depressive episode demonstrate more intense emotional experiences and broader range of emotional manifestations: diminished interest in activities, detachment or estrangement, restricted range of effects, sadness, lassitude, pessimistic thoughts, suicidal thoughts, depressed mood, guilt, retardation, agitation, anxiety and genital symptoms, regarding those suffering of post-traumatic stress disorder only. The third feature of comorbidity of posttraumatic stress disorder and depression is greater subjective suffering. The repetition of intrusive contents, tragic evaluation of outcome, sadness, anhedonia and guilt, together with non-modulated emotional manifestations, together with the decrease in control over impulses and beheviour, loss of selfregulatory capacities and social dissolution produce more intense subjective suffering and higher suicide risk. (18-23) CONCLUSION The results pointed out that comorbidity of post-traumatic stress disorder and depression is characterized by the existance of a particular group of symptoms. Defining of the aforementioned group of symptoms is important for clinical work. Identification of those symptoms lead the clinician, faced with traumatized patient presenting broad and undifferentiated picture of global disturbance which represent many versatile symptoms and is based on real tragic events, to establish directly the diagnosis of post-traumatic stress disorder and depression. The obtained results showed that the application of the above quoted clinical instruments enables thorough diagnostics of the trauma-related psychopathology. The importance of recognition the comorbidity of post-traumatic stress disorder and depression lies in the fact that the patient identified in that way develops more severe form of disorder and is more subjectively disturbed and more functionally disabled. Diagnostics of the comorbid depression leads the clinician to think about the suicidality that presents a great problem in post-traumatic stress disorder and has a higher rate in the cases of comorbidity of post-traumatic stress disorder and depression, keeping in mind that the patients with comorbid disorders manifest higher chronicity of illness and lesser rate of spontaneous remission and to adapt the applied methods of medicamentous and individual psychotherapy. 79 Maja Simonovic, Grozdanko Grbesa REFERENCES 1. Grbesa G, Simonovic M, Nikolic G, Samardzic Lj, i Milosavljevic Lj. Razvoj simptoma posttraumatskog stresnog poremećaja u uslovima specifičnog traumatskog događaja. XXXIII dani preventivne medicine. Uvodno predavanje. Zbornik rezimea 1999: 8-14. 2. Kecmanovic D. Psihijatrija. Medicinska knjiga. Beograd, 1986. 3. Keane TM, Wolfe J. Comorbidity in post-traumatic stress disoredr: an analysis of community and clinical studies. J Appl Soc Psychol 1990; 20: 1776-1788. 4. 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KLINIČKA PREZENTACIJA KOMORBIDITETA DEPRESIJE I POSTTRAUMATSKOG STRESNOG POREMEĆAJA Maja Simonović1, Grozdanko Grbeša1,2 1 Klinika za zaštitu mentalnog zdravlja, Neurologija i psihijatrija razvojnog doba, Odsek za posttraumatske stresne poremećaje, Klinički centar Niš, 2 Medicinski fakultet Niš SAŽETAK Komorbiditet posttraumatskog stresnog poremećaja (PTSP) i depresije pružio je mogućnost sagladavanja širokog niza interakcija anksioznih i poremećaja raspoloženja i to u više domena: u domenu kliničke prezentacije, kao i u domenu procene efikasnosti tretmana i psihofiziologije ovih poremećaja. Cilj rada bio je određivanje karakteristika kliničke prezentacije komorbiditeta PTSPi depresije. 80 Clinical Presentation of Comorbid Depression and Post-traumatic Stress Disorder Evaluirano je 60 pacijenata uz korišćenje sledećih instrumenata: Strukturisani klinički dijagnostički instrument za Axis I poremećaje (SCID za DSM.IV), Skala za kliničku procenu PTSP (CAPS.DX), Montgomeri-Osberg skala za depresiju (MADRS) i Hamiltonova skala za depresiju (HAMD). Podaci su analizirani korišćenjem metoda deskriptivne statistike. Statističke značajnosti razlika između grupa su utvrđene korišćenjem T testa. Rezultati su pokazali da je komorbiditet depresije i PTSP povezan sa višim intenzitetom intruzivnih simptoma, posebno sa fleš bekovima i intruzivnim mislima koje su ukazivale ili na PTSP ili na depresiju, sa širim spektrom emocionalnih doživljavanja i raspoloženja i sa većom subjektivnom patnjom pacijenta. Analiza kliničke prezentacije i kompleksnog spektra interakcija depresije i PTSP omogućava bolje razumevanje simptoma prezentovanih od strane pacijenta, izbor efikasnijih terapijskih strategija i baca svetlo na moguće mehanizme ljudske reaktivnosti na ekstremne traumatske doživljaje. Ključne reči: komorbiditet, depresija, PTSP 81 ACTA FAC MED NAISS UDC 616.718.4-001.5-089 Original article ACTA FAC MED NAISS 2007; 24 (2): 83-88 1 1 Sasa Karalejic , Desimir Mladenovic 1 1 Ivan Micic , Zoran Golubovic 1 Predrag Stojiljkovic 2 Danilo Stojiljkovic 1 Clinic of Orthopedics and Traumatology of the Clinical Center Nis 2 Surgical Clinic, Clinical Center Nis TREATMENT OF THE FEMORAL SHAFT FRACTURE BY SELF-DYNAMISABLE INTERNAL FIXATOR MITKOVIC SUMMARY The paper presents initial results in the application of a new method for the osteosynthesis of comminuted and unhealed femoral shaft fractures. A self-dynamisable internal fixator Mitkovic was applied in 38 patients, out of which 23 patients with comminuted femur fractures and 15 patients with unhealed fractures. The method of placement and results of the work and their estimation according to the modified system of the Karlstrom-Olerud method are presented. Good condition was registered in 17 patients, satisfactory in 9, approximately good in 6 patients, and poor condition in 6 patients. An average healing time for the femur fractures is 34 weeks, which depends on the type of the femur fracture and treatment of unhealed fractures. The method of self-dynamisable internal fixator Mitkovic application provides complete stability of the fracture and makes spontaneous biological dynamization of the fracture possible. It does not damage the periosteal and medullary bone vascularization, which favors osteosynthesis and considerably contributes to osteogenesis. Key words: femoral shaft fracture, self-dynamisable internal fixator Mitkovic INTRODUCTION Fast development of traffic, industry, agricultural mechanizations, sports and other activities consequently brought about the phenomenon of epidemics of traumatology. The injuries of the extremities are prevalent, the most frequent of which are fractures of the shin and thigh. The fracture of the femoral shaft occurs as a consequence of direct or indirect force effect. The intensity of external force inducing a bone fracture is of crucial importance for the type and kind of fracture. It affects the degree of soft structures' damages in the vicinity of bones as well as degree of fragments' dislocation. The forces of great kinetic energy break bones into more fragments, dislocate them and considerably damage the adjacent soft tissue. Consequently, there are comminuted fractures with greater number of fragments, damages to vascular network of bone fragments, especially loose fragments, as well as disruption of periosteal circulation (1). This kind of fracture is hard to stabilize, and even if stability is attained by classic osteosynthetic devices (intramedullary nails, plates and screws), there is a great secondary damage to bone vascularization, so that the fracture usually does not heal or the process of osteogenesis is slow and rather long (2). The self-dynamisable internal fixator Mitkovic for femur is a new osteosynthetic device. Its basic characteristic and advantage is the application along the femoral shaft without deperiostation of fragments, by which the periosteal Corresponding author. Tel/fax: 018 230184, mob: 063 410103 • E-mail: karalejics@bankerinter.net 83 Sasa Karalejic, Desimir Mladenovic, Ivan Micic, Zoran Golubovic, Predrag Stojiljkovic, Danilo Stojiljkovic and periosseous vascularizations are not disrupted. The fixator preserves the biological bone milieu, so that this method is biological and non-compromising for soft tissues and vascularization. This procedure contributes to the process of osteogenesis which generally depends on numerous factors, the most important of which are: type of fracture, degree of primary damage to bone and its vicinity, degree of the fracture stabilization and vascularization of bones and adjacent soft tissues (3). AIMS The aim of the paper was to point to the application of the self-dynamisable internal fixator Mitkovic in the management of comminuted and unhealed fractures of femur, as well as to present the biological advantages of this method. MATERIAL AND METHODS The self-dynamisable internal fixator Mitkovic consists of the metal oval bar which is 10 mm in width and 15-30 cm in length. In the upper part of the bar there is an oval slot for the cortical screw by which the pin is fixed to the femur, and which plays the role of antirotation of the upper fragment. In the lower part, there is a groove of 2 cm in length which serves for the placement of the cortical screw with antirotational role in regard to the lower bone fragment. This screw is placed in the lower part of the groove along which the fixator slides downwards in the case of spontaneous dynamization and fragments' compression. An integral part of the selfdynamisable internal fixator is clamps which slide along the bar and serve for the placement of screws in different planes as well as for stabilization of fractures. This retrospective study included 38 patients. In 23 patients (60%), the internal fixator was applied as a primary osteosynthetic device for stabilization of comminuted fracture of femur. In 15 patients (40%), the internal fixator was applied in the secondary surgical procedure: • after turning the external fixation into internal one after the appearance of surface infection around pins of external fixator, • after nonhealing of the fracture or after wound management, that is the management of the open fracture of femur, • in the treatment of nonunions of femur, treated by some other method of osteosynthesis, • after breaking of osteosynthetic material (intramedullary nail, plate) applied in the treatment of the femur fracture. 84 The internal fixator is placed along the femur, and then introduced upwards through the cut of 2-3 cm in length. In the proximal part, there is an upper part of the fixator and through the cut we place a cortical screw through the fixator hole. Then, we place internal fixator along the femoral shaft, do the fragments' reposition and then place the cortical screw along the groove in the lower part of the fixator. This screw is deliberately placed in the lower part of the groove to enable sliding of the pin along the vertical femur axis. This is how the sliding of the upper fragment starts, inducing compression of the lower part. The cortical screws are antirotational – they do not allow rotation of fragments but only vertical sliding. Along the bar, two clamps are placed for proximal and distal fragments. They are the screws' carriers that we place into two planes convergently so as to achieve stability of fragments at the site of fracture. The site of fracture should not be opened. Instead, we do the reposition of fragments stabilizing them by screws. Rarely, when the reposition of fragments is impossible or unsatisfactory, the fracture site should be opened with doing the open reduction of the fracture but without deperiostation of ends. Also, the interpositum should be taken out of the fracture site – usually, it is muscles. RESULTS The final results of the group examined were assessed by the modified method Karstrom-Olerud. We followed the subjective symptoms (pain, aggravation of walking, difficulty walking up the stairs, aggravation of condition after training sports, limitation of working ability) as well as the objective signs (skin condition, deformity, muscles' atrophy, leg length discrepancy, loss of movements in the hip and knee). Based on these parameters, a modified score system was introduced as well as five groups with different scores (Figure 1). Figure 1. The final results of the examined group were assessed by the modified method Karstrom-Olerud Treatment of the femoral shaft fracture by self-dynamisable internal fixator Mitkovic An excellent result at the end of the treatment was registered in 2 patients (5%). The examinees were young people with comminuted fractures of the femoral shaft. These injuries occurred in a car accident and were treated by internal fixator (Figures 2-4). Figure 4. Fracture healing after 20 weeks Figure 2. Comminuted femoral shaft fracture Figure 3. Fracture treated by self-dynamisable internal fixator Mitkovic The consequences were not serious: mild atrophy of the thigh reduced the ability of running and training previous sports, reduced working ability related to jobs involving long walking, standing or some effort. Good results were registered in 17 patients (45%) and satisfactory one in 9 patients (23%). Approximately good results were registered in 6 examinees (16%), while poor results were noticed in 4 examinees (11%). There is a great group of examinees with good and satisfactory results, in total 26 examinees (68%). The treatment of this group of patients was terminated without more serious consequences. The most usual consequences typical of this group were: aggravation of walking, difficulty walking up and down the stairs, reduction of working ability with regard to hard and moderately hard physical jobs, shortening of the operated leg by 1-2 cm in 8 examinees, and hypertrophy of muscles by 12 cm in 17 examinees. All these consequences are tolerable, and did not change activities and habits of the examinees. Serious consequences were noted in the group of examinees with approximately good as well as poor functional results. In this group, there were 10 patients (27%) with the following consequences: • 2 patients suffered from chronic femoral osteomyelitis, which resulted from getting injured by shrapnels and gunshots. Initially, they were treated by the method of external fixation which was later replaced by internal fixation. 85 Sasa Karalejic, Desimir Mladenovic, Ivan Micic, Zoran Golubovic, Predrag Stojiljkovic, Danilo Stojiljkovic • in 6 patients, there was a reduction in the knee flexion – possible up to 80°, which was the result of long period of physical inactivity. As for these patients, the treatment started with plates and screws. • in 4 examinees, there was a shortening of the extremity by more than 3%, which was the result of primary comminution and bone defect. • In all patients, there was a marked hypertrophy as a consequence of long inactivity of the extremities. DISCUSSION In traumatology, there is a great choice of methods of treatment of the femoral shaft fractures. Depending on the fracture type and its comminution, the following can be applied: plates with screws, Küncher's nail, intramedullary nail, external fixator (4,5). At the Clinic of Orthopedics and Traumatology in Nis, the self-dynamisable internal fixator by Mitkovic is applied. Numerous factors determine the process of osteogenesis and directly influence the course and outcome of fracture. Among them, the most important are: the type of fracture, stability of fixation and preserving the fracture site vascularization. The internal fixator provides stability of fragments and contributes to the process of osteogenesis. It excludes the fracture from the lever chain and takes over the role of the fractured bone. It bridges the fracture focus and with its interponation into the bone itself makes a whole (6-9). The fixator rigidity is an important invariable category, which can be the key factor in early bone union. The internal fixator does not disrupt the intramedullary circulation, but preserves it providing condition for its recovery, which is an important precondition for the endosteal callus formation (3, 10). The pressure between bone fragments plays an important role in the process of osteogenesis. Many authors have pointed that an optimal pressure in the healing process is 80N. Weaker compression leads to disappearance of bone, while greater compression brings about resorption of bones and nonunion (11, 12). The biochemical role of internal fixator is: • to keep fragments in proper relation, that is to provide the contention of fragments, • to prevent torsion-axial forces which are quite unfavorable in the process of osteogenesis, since they constantly bring about damages to fibrous-cartilage callus structures, disrupting thus their transformation into bone structures. 86 Dynamization phenomenon induces transmission of axial loading over the bone fragments (4). The apparatus dynamization occurs spontaneously several weeks after the operation, when the micromovements appear at the fracture site, which substantially stimulates and speeds up the process of osteogenesis (1). Dynamization should start early when the fibrous callus has provided a rest of fragments, which in the case of femoral fractures occurs after 7-8 weeks (2, 11-13). After this period, doctors should insist on verticalization and walking with the use of crutches with gentle leaning on the operated leg. The construction of internal fixator allows spontaneous dynamization. Then, the axial moving of fragments and decreasing of the fracture gap occur. With initial weight-bearing on the operated leg, the sliding of the whole apparatus with the upper bone fragments starts downwards, along the antirotational screw placed in the groove at the lower pole of internal fixator. The screws placed convergently in the fixator provide stability of fragments in all planes over the clamps. They are placed as far from the fracture site as possible so as to provide stability, to exclude the rotation-axial forces, and to provide the axial movement of fragments and compression in the bone focus. An important factor in the process of osteogenesis is vascularization of bones (2, 14, 15). The degree of the bone vascular network damage affects the speed and kind of callus formation. The periosteal arterial and intramedullary circulation, that is the circulation around the adjacent soft tissue have the greatest role in the early period of osteogenesis. In comminuted fractures, the fracture focus loses both periosteal and medullary circulation. Osteosynthetic material considerably disrupts bone vascularization. A plate with screws can seriously disrupt the periosteal circulation, while intramedullary fixation disrupts the bone medullary vascular network, inducing thus avascularity of the inner part of entire cortex (2, 5, 16, 17). The internal fixator is ultimately sparing for the entire bone network. It is applied over the bone without deperiostation, so that it disrupts neither periosteal nor medullary circulation. It is placed in the way that it can skip the fracture site without opening, so that the primary hematoma does not enlarge. With the placement like this, there is a minimal disruption of the periosteal circulation, and therewith the process of osteogenesis depends only on primary, initial disruption occurring at the moment of trauma. Treatment of the femoral shaft fracture by self-dynamisable internal fixator Mitkovic CONCLUSION The self-dynamisable internal fixator Mitkovic is a new osteosynthetic device and a new biological method of the femoral shaft fracture fixation. The results are encouraging since this fixator provides conditions for a minimal surgical intervention. It also provides tridimensional stability of bones, as well as fragments' dynamization. In regard to the bone circulation network, it is ultimately sparing, providing thus conditions for the formation of great periosteal callus equally formed around the fracture site. This fixator can be relatively easy and quickly applied, and the results obtained in this study justify its broad application in fixation of femoral shaft fractures and management of femoral pseudoarthrosis. REFERENCES 1. Lubegina ZP. Narusenie istocnikov krovosnabzenija diafiza bedrenoj kosti pri zakritom perelome. Ortoped Travmat 1976; 3: 50 - 51. 2. Mladenovic D. Vaskularizacija kosti i osteosinteza. Leskovac, 2000. 3. Karlstrom G, Olerud S. Secondary internal fixation. Experimental studies on revaskularisation and in osteotomized rabbit tibias.Acta Orthop Scand 1979; 17: 3-39. 4. Lewallen GD. Comparasion of the effects of compression plates and external fixators on early bone healing. J Bone Joint Surg 1984; 66A: 1084-91. 5. Molster A. Biomechanical effects of intramedullary reaming and nailing on intact femora in rats. Clin Orthop 1986; 202: 278-285. 6. Christensen NO. Kuntsher Intramedullary reaming and nail fixation for non union of fractures of the femur and tibia. J Bone Joint Surg 1973; 55B: 312-20. 7. Fischer DA. Skeletal stabilisation with a multipalue external fixation device: Design rationale and preliminary clinical experience. Clin Orthop 1983; 180: 50-8. 8. Fleming B, Palez D, Kristiansen T, Pope M. A biomechanical analysis of the Ilizarov external fixators. Clin Orthop 1989; 241: 95-105. 9. Foxworthy M, Pringle MR. Dynamisation tinsing and its effect on bone healing when using the Ortofix axial fixator. Injury 1995; 26(2):117-119. 10. Grundnes O, Utvag SE, Reikeras O.. Effects of graded rexaming on fracture healing.Blood flow and healing studied in rat femurs.Acta Orthop Scand 1994; 65(1): 32-36. 11. Kelly PJ, Montgomery RJ, Brouk JT. Reaction of the circulatory sistem to injury and regeneration. Clin Orthop 1990; 254: 275-288. 12. Kenwright J, Goodship EA, Kelly JD at al. Effect of controlled axial micromovement on healing of tibial fractures. Lancet 1986; 2(8517):1185-7. 13. Mitković M. Spoljna fiksacija u traumatologiji. Prosveta, Niš, 1992. 14. Mitkovic M, Bumbasirevic M, Golubovic Z, Mladenovic D, Milenkovic S, Micic I. New biological method of internal fixation of the femur. Acta Chir Jugosl 2005; 52(2):1136. 15. Claes L, Heitemeyer U, Krischak G, Braun H, Hierholzer G. Fixation technique influences osteogenesis of comminuted fractures. Clin Orthop Relat Res 1999; 365(8):2219. 16. Barron SE, Robb RA, Taylor WF, Kelly PJ. The effest of fixation with intramedularry rods and plates on fracturesite blood flow and bone remodeling in dogs. J Bone Joint Surg 1977; 59A: 376-385. 17. Calhoun JH, Li F, Ledbetter BR, Gill CA. Biomechanics of the Ilizarov fixator for fracture fixation. Clin Orthop 1992; 280: 15-22. LEČENJE PRELOMA DIJAFIZE FEMURA SAMODINAMIZIRAJUĆIM UNUTRAŠNJIM FIKSATOROM MITKOVIĆ Saša Karalejić 1, Desimir Mladenović 1, Ivan Micić 1, Zoran Golubović 1, Predrag Stojiljković 1, Danilo Stojiljković 2 1 Ortopedsko-traumatološka klinika, Klinički centar Niš 2 Hirurška klinika, Klinički centar Niš SAŽETAK U radu su prikazani rezultati primene nove metode za osteosintezu kominutivnih i nezaraslih preloma dijafize femura. Primenili smo samodinamizirajući unutrašnji fiksator po Mitkoviću kod 38 bolesnika i to kod 23 bolesnika kao primarno osteosintetsko sredstvo za stabilizovanje kominutivnog preloma femura i kod 15 bolesnika u sekundarnom hirurškom postupku. Prikazana metoda plasiranja samodinamizirajućeg unutrašnjeg fikastora je, kao i rezultati rada i njihova procena, po modifikovanom sistemu metode KarlstromOlerud. Dobro stanje utvrđeno je kod 17 bolesnika, zadovoljavajuće kod 9, približno 87 Sasa Karalejic, Desimir Mladenovic, Ivan Micic, Zoran Golubovic, Predrag Stojiljkovic, Danilo Stojiljkovic dobro stanje kod 6 bolesnika i slabo stanje kod 4. Prosečno vreme zarastanja teških kominutivnih i nezaraslih preloma dijafize femura iznosilo je 34 nedelje. Metoda primene samodinamizirajućeg unutrašnjeg fiksatora daje potpunu stabilnost preloma i omogućuje spontanu-biološku dinamizaciju preloma. Ne oštećuje periostalnu i medularnu vaskularizaciju kostiju, što je velika prednost osteosinteze, a time znatno doprinosi razvoju osteogeneze. Ključne reči: prelom dijafize femura, samodinamizirajući unutrašnji fiksator Mitković 88 ACTA FAC MED NAISS UDC 616.25-006 Original article ACTA FAC MED NAISS 2007; 24 (2): 89-93 1 Tatjana Radjenovic Petkovic 1 2 Tatjana Pejcic , Vojin Savic 2 Predrag Vlahovic 1 Desa Nastasijević Borovac 3 Danijela Radojkovic 1 Clinic for Lung Diseases Knez Selo Nephrology Clinic 3 Endocrinology Clinic 2 USE OF C- REACTIVE PROTEIN IN PLEURAL FLUID FOR DIFFERENTIAL DIAGNOSIS OF BENIGN AND MALIGNANT EFFUSION SUMMARY The aim of this study was to determine the validity of pleural fluid Creactive protein (CRP) concentrations and pleural fluid /serum CRP ratio for differentiating pleural effusion of malignant from non-malignant etiology. Pleural fluid and serum CRP levels were obtained in 82 patients with pleural effusion, using an immunoturbidimetric method (Olympus autoanalyser). Patients were subdivided in two groups, group I (n= 41) with malignant, and group II (n=41) with non-malignant (tuberculous, inflammatory, transudative) pleural effusion. Statistical analysis was conducted using the MannWhitney Rank sum test. There were statistically significant differences in pleural fluid CRP values between group I (15.6 ±10.55), and group II (25.7 ±12.475), and there were significant differences between CRPpleural fluid/serum ratio in group I vs. group II (0.318 ±0.157, vs. 0.430± 0.229). In addition, there were statistically significant differences between pleural fluid CRP values in patients with parapneumonic compared to patients with tuberculous and malignant effusions. In differential diagnosis of pleural effusion, pleural fluid CRP may prove rapid and practical method of differentiating malignant from non-malignant pleural effusion. Key words: pleural effusion, C-reactive protein, malignant, nonmalignanat INTRODUCTION Pleural effusion is a common problem in clinical practice. It can be caused by several mechanisms including increased permeability of pleural membrane, increased pulmonary capillary pressure, decreased negative intrapleural pressure, decreased oncotic pressure, and obstruction of lymphatic flow (1). Pleural effusion points to disease which can be pulmonary, pleural or extrapulmonary. One of the most common etiologies of pleural effusion is Corresponding author. Tel/fax +381 64 2662539 malignancy, among which lung cancer corresponds to a great number of cases. However, other infectious and other non- infectious diseases contribute to this clinical manifestation, too. Differentiation of malignant from non-malignant pleural effusion is of great importance. Measurement of C-reactive protein (CRP) levels is clinicaly valuable screening test for inflammatory disease as a measure of response to therapy (2-4). Acute phase response is a general response to inflammation, trigered by cytokines, released from the sites from injury or inflammation (5). 89 Tatjana Radjenovic Petkovic, Tatjana Pejcic, Vojin Savic, Predrag Vlahovic, Desa Nastasijević Borovac, Danijela Radojkovic C-reactive protein is an acute phase protein, produced in the liver. Increased production of this protein is triggered by citokones, IL 6, TNFα and IL 1, released by inflamatory cells (6). A major function of C-reactive protein is the ability to bind phosphocholine and thus recognize some foreign pathogenes as well as phospholipid constituents of damaged cells. It can activate complement system when bound to one of its ligand, and can also bind to phagocytic cells. It can also induce synthesis of inflammatory cytokines and tissue factor. C-reactive protein has many pathophysiological roles in inflammatory process (3). AIMS The aim of the study was to investigate wheather C-reactive protein (CRP) could be clinicaly valuable for differentiating malignant from non-malignant pleural effusion. Cytology is a standard method for diagnosis of malignant effusion, and positive pleural cytology is diagnostic of malignant pleurisy, while a positive biochemical marker values are only indicative of inflammatory process. MATERIAL AND METHODS We collected serum and pleural fluid samples from 82 patients, (48 man and 34 women, mean age 62,9 years) admitted to the Clinic for Lung Diseases and Clinic for Lung Surgery between March 2006 and March 2007. Blood samples were centrifuged at 1500/ 0 for 10 minutes, the pleural fluid samples were centrifuge at 2000 /o for 10 minutes to remove blood. The levels of glucose, total protein, lactic dehydrogenase, albumin and cholesterol were measured in both sets of samples. Gram-staining and aerobic culture were performed on the pleural fluid samples. The test for mycobacterium Ziel Nilsen staining was performed after homogenisation, and the samples were cultivated in Lowenstain Jansen culture media. CRP analysis was performed on autoanalyzer Olympus, Tokyo, Japan, using immunoturbidimetric method. CRP values are given in mg/L. The patients were divided in two groups, group I with malignant, and group II with nonmalignant pleural effusion. Effusions were considered malignat if malignant cells were found on the cytologic examination, or in the biopsy specimen. Classification of pleural effusion into transudative or exudative is based upon Light criteria. This criteria discriminate pleural exudate on the basis of pleural fluid to serum lactate dehydrogenase ratio >0,6 , or pleural fluid to serum protein ratio >0,5 . The diagnosis of tuberculous pleurisy was made by positive smear or culture on mycobacterium tuberculosis. Criteria for parapneumonic effusion were: clinical, biochemical and radiological signs suspected on acute inflammation, positive culture for aerobe, positive Gram staining, presence of purulent effusion or neutrophil predominance in pleural effusion (7). Statistical analysis was made by Mann Whitney test used to analuze the difference between groups. The level of significanse was considered as <0,05. RESULTS Of 82 subjects, 41 were diagnosed with malignant (group I), and 41 were diagnosed with non-malignant pleural effusion (group II). Of 41 malignant effusion, 21 subjects (51.2%) were male, and 20 (48.8%) were female. The mean age of this group was 62,8 years (range 48-80 years). Of 41 benign cases, 29 subjects (70.8%) were male, and 12 (29.2%) were female, with mean age 63.1 years (range 25-85 years). In group II, 9 (21.9%) patients had transudative, and 32 (78.1%) patients had exudative effusion. In malignant group, all patients had exudative pleural effusion. Distribution of pleural effusion etiologies are presented in Table 1. Table 1. Cases of malignant and non-malignant pleural effusion 90 CAUSE malignant lung cancer mesotelioma breast cancer ovary cancer endometrium renal cancer NUMBER 41 28 2 4 2 1 1 prostate cancer HML carcinoma hepatis 1 1 1 CAUSE non- malignant parapneumonic empyema tuberculosis morbus cordis cyrrhosis status post implantationem valvulae mitralis lupus erytematosus number 41 13 9 9 6 2 1 1 Use of C- reactive protein in pleural fluid for differential diagnosis of benign and malignant effusion Table 2. Pleural fluid C-reactive protein levels in study group column n Median Mean±SS (mg/l) SE Max Min malignant nonmalignant 41 39 15.60 25.700 20.27±16,05 44.397±42,39* 2.51 6.788 65.30 1.20 148.900 1.500 p * *data are given in mg/l, significance determinated as p<0,05 malignant vs non-malignant effusion Pleural fluid C-reactive protein values were significantly higher in non-malignant vs. malignant pleural effusion ( Table 2.), (p<0,05). CRP values were significantly higher in parapneumonic than in malignant (p<0,001),transudative p<0,001, and in tuberculous effusions (p<0,01) (Table 3). Differential cell counting can add some diagnostic information. Pleural lymphocytosis is common in malignant and tuberculous effusions, while neutrophilia is the sign of acute infection (9). It is well-known that C- reactive protein values in serum is one of the most sensitive and specific Table 3. Pleural fluid CRP values in non- malignant effusion Column n Median parapneumonic tuberculous transudative 21 9 9 65.40 19.50 8.300 Mean±SD SE Max (mg/l) 68.12±43.82 9.56 148.90 22.28±18.15 6.05 58.50 11.15±11.53 3.84 39.40 Min p 12.70 4.10 1.50 * ** *** data are given in mg/l, significance determinated as p<0,05; * p<0,001 compared with malignant, ** p<0,01 compared to parapneumonic, *** p<0,001 compared to parapneumonic effusion The ratio of pleural fluid to serum CRP values was also significantly higher in nonmalignant than in malignant group (p<0,05) (Table 4). Also, CRP pleural fluid to serum ratio was significantly higher in parapneumonic than in malignant and tuberculous group, while there were not significant differences beetwen transudative and other groups. markers for bacterial pneumonia, and it is diagnostic as prognostic marker (10,11). There is less information about C- reacitve protein in pleural fluid. Turay et al. found that pleural fluid CRP levels >30mg/L had sensitivity of 93,7% and specifity for 76,5% for inflammatory pleural effusions (12). Table 4. Serum/pleural fluid CRP ratio, significance determinated as p<0,05 column malignant non-malignant parapneumonic tuberculous transudative n 41 39 21 9 9 Median 0.280 0.410 0.48 0.29 0.340 Mean±SD 0.318±11.53 0.430±0.229 0.51±0.25 0.30±0.12 0.36±0.19 SE 0.0245 0.0366 0.054 0.039 0.063 Max 0.870 1.020 1.02 0.54 0.70 Min 0.1000 0.0900 0.09 0.12 0.13 p * ** *** * p<0,05 compared to parapneumonic, ** compared to malignant effusion ,*** compared to tuberculous effusion DISCUSSION Pleural effusion is often a clinical problem in medical practice, as the differential diagnosis includes a wide variety of local and systemic diseases. Although many different diseases may cause a pleural effusion, the most common causes in the United States are congestive heart failure, pneumonia, and cancer (8). In our study, the most common cases of pleural effusion were cancer and pneumonia, which can be due to a small number of patients with congestive heart failure in our hospital. There is a standard classification of pleural effusion into transudative an exudative effusions, based on the Light criteria. However, the etiology classification of effusions is much complex. Until now, measurements of cholesterol, bilirubin, amylase have been used, but with limited success. Vidriales at al., Turay at al. found that CRP pleural fluid levels were highly elevated in parapneumonic effusion, than in other types of effusion (12, 13). Our study show similar results. Also, the study of Turales show that pleural fluid/serum CRP ratio are much higher in parapneumonic than in malignant or tuberculous effusions. The same was with our 91 Tatjana Radjenovic Petkovic, Tatjana Pejcic, Vojin Savic, Predrag Vlahovic, Desa Nastasijević Borovac, Danijela Radojkovic results. In our study, pleural fluid CRP was significantly different in malignant vs. nonmalignant pleural effusion, but there is not significant difference between malignant and tuberculous effusions. On the contrary, Chierakul et al. and Garcia Patchon et al. study of CRP levels in lymphocyte pleural effusion found that CRP levels were twice as high in tuberculous than in malignant effusion, while Turay found higher CRP effusion value in malignant effusion (14,15). Retrayo et al. found that pleural fluid CRP may prove to be a rapid, practical, and accurate method to define bacterial pneumonia (16). Most of the authors who research pleural fluid CRP have found that it could be a useful marker for differentiating parapneumonic effusion from other types of effusion. CONCLUSION In differential diagnosis of pleural effusions higher CRP levels may prove to be a rapid, practical and accurate method of differentiating parapneumonic effusions from other exudate types. The pleural CRP level may also be helpful in discriminating between malignant from non-malignant pleural effusions. REFERENCES 1. NA Maskell RJA. Butland. BTS guidelines for the investigation of a unilateral pleural effusion in adult. Thorax 2003; 58: 8–17. 2. Castana O, Vidriales JL, Amores Antequera C. Use of pleural fiuid C-reactive protein in laboratory diagnosis of pleural effusions. Eur J Med 1992; 1: 201-207. 3. Gubay C, Kushner I. Acute phase proteins and other systemic responses to inflammation. England Journal of Medicine 1999; 340: 448-454. 4. Diederichsen HZ, Skamling M, Diederichsen A, Grinsted P, Antonsen S. Randomised controlled trial of CRP rapid test as a guide to treatment of respiratory infections in general practice. Per Scand J Prim Health Care 2000; 141-148. 5. Melbye H. Point of care testing for C-reactive protein: A new path for Australian GPs? Australian Family Physician 2006; 35: 513-515. 6. Clyne B, Olshaker JS. The C- reactive protein. J Emerg Med 1999; 17: 1019–1025. 7. Hamm H, Light RW. Parapneumonic effusion and empyema. Eur Respir J 1997; 10: 1150–1156. 8. Light RW. Pleural effusion. N Engl J Med 2002; 346: 1971-1977. 9. Medford A, Maskell N. Pleural effusion. Postgrad Med J 2005;81:702–710. 10. Castro-Guardiola A, Armengou-Arxe A, ViejoRodrıguez AL, Penarroja-Matutano G, Garcia-Bragado F. Differential diagnosis between community-acquired pneumonia and nonpneumonia diseases of the chest in the emergency ward. Eur J Intern Med 2000; 11:334–339. 11. Solh AE, Pineda L, Bouquin P, Mankowski C. Determinants of short and long term functional recovery after hospitalization for community-acquired pneumonia in the elderly: role of inflammatory markers. BMC Geriatrics 2006; 6:12-15. 12. Turay YU, Yildirim Z, Turkoz Y, Biber C, Erdogan Y, KeyfAI, Ugurman F,AyazA, Ergun P, Harputluoglu M. Use of pleural fluid C-reactive protein in diagnosis of pleural effusions. Respir Med. 2000; 94 (5):432-435. 13. Vidriales JL, Antaquera AC. Use of C reactive protein in laboratory diagnosis of pleural effusions. Eur J Med 1992;1:201-207. 14. Chierakul N, Kanitsap A, Viriataveekul R. Simple C-reactive protein measurement for the differentiation between tuberculous and malignant pleural effusion. Respirology 2004; 9: 66–69. 15. Garcia-Patchon E, Soler MJ, Padilla-Navas I, Romero V, Shum C. C-Reactive Protein in Lymphocytic Pleural Effusions: A Diagnostic Aid in Tuberculous Pleuritis. Respiration 2005; 72: 486-489. 16. Requejo HZ, Cocoza AM. C-reactive protein in the diagnosis of community-acquired pneumonia. Braz J Infect Dis 2003; 7: 241-244. DIJAGNOSTIČKI ZNAČAJ C-REAKTIVNOG PROTEINA U RAZLIKOVANJU MALIGNIH OD NEMALIGNIH IZLIVA Tatjana Rađenović Petković1, Tatjana Pejčić1, Vojin Savić2, Predrag Vlahović2 Desa Nastasijević Borovac1, Danijela Radojković3 1 Klinika za plučne bolesti i TBC Knez Selo, 2Klinika za nefrologiju, 3 Klinika za endokrinologiju SAŽETAK Cilj ovog rada bio je da se ispita dijagnostički značaj određivanja C-reaktivnog proteina u izlivu, kao i odnosa CRP u izlivu i serumu, u razlikovanju malignih od nemalignih izliva. 92 Use of C- reactive protein in pleural fluid for differential diagnosis of benign and malignant effusion Ispitivanjem je obuhvaćeno 82 pacijenta sa kliničkim i radiološkim znacima pleuralnog izliva, hospitalizovanih u Klinici za plućne bolesti u periodu 2006-2007. godine. CRP je u pleuralnom izlivu i serumu određivan imunoturbidimetrijskom metodom, na autoanalajzeru Olimpus, Japan. Pacijenti su podeljeni u dve grupe, grupu I sa izlivom u sklopu maligne bolesti, i grupu II, sa nemalignom etiologijom izliva. Statistička obrada rezultata urađena je korišćenjem MannWhitney test Ran sum testa. Postoji statistički značajna razlika u vrednostima CRPa u izlivu u grupi I i grupi II (p<0,05). Takođe, postoji značajna razlika u odnosu CRPa u izlivu i serumu u grupi I u odnosu na grupu II (p<0,05). CRP u izlivu takođe je bio statistički značajno viši kod zapaljenskih (parapneumoničnih i empijema), u odnosu na maligne (p<0,001), transudativne (p<0,001) i tuberkulozne (p<0,01) izlive. Na osnovu urađenih ispitivanja, možemo zaključiti da merenje C-reaktivnog proteina u serumu predstavlja brz, dostupan test, koji može pomoći u diferenciranju malignih od nemalignih, kao i zapaljenskih od drugih tipova izliva. Ključne reči: pleuralni izliv, maligni, nemaligni, C-reaktivni protein 93 ACTA FAC MED NAISS UDC 616.155.1-053.2 Case report ACTA FAC MED NAISS 2007; 24 (2): 95-98 Vesna Bogicevic, Gordana Kostic Danijela Jovancic Gordana Bjelakovic, Mira Ilic Bojko Bjelakovic, Ljiljana Pejcic Verica Ilic CASE REPORT OF A PATIENT WITH THALASSEMIA AND HEMOGLOBIN LEPORE Children's Internal Clinic Clinical Centre Nis SUMMARY Thalassemias are inherited disorders of hemoglobin synthesis, characterized by reduced output of one or other globin chains of adult hemoglobin. The red blood cells are vulnerable to mechanical injury and die easily. To survive, many people with thalassemia need blood transfusions at regular intervals. Hereby, we present the case of a six-year-old boy, I.U. from Zitoradja, who was admitted to the Children's Internal Clinic in Nis in July 2005, due to paleness, exhaustion, higher body temperature, vomiting and diarrhoea. During hospitalization, autoimmune haemolytic anemia was dismissed and therapy was administered against infection with supplementation of folic acid and vitamin B12. Although no members of the nuclear family had similar symptoms, based on the findings of the boy's abdominal ultrasound examination, as well as enlarged spleen and data on the previous non-responsive treatment of anemia with iron medicine, there arose a doubt that it was the case of hereditary haemolytic anemia. Molecular genetic examination of the boy revealed heterozygosity for beta thalassemia and Hb Lepore, a rare type of hereditary haemolytic anemia at the territory of Serbia. During the last two years from the diagnosis, the boy has been in good condition and has not fallen behind in growth and development in relation to his mates. The values of haemoglobin have been maintained at satisfactory level, and so far, no erythrocyte transfusion has been applied. Splenectomy is planned to eliminate subjective discomfort that the boy has been feeling last months. Key words: ß-thalassemia, hemoglobin Lepore, splenomegaly INTRODUCTION Thalassemias are a group of genetic disorders of hemoglobin (Hb) synthesis, characterized by decrease in creation of one or more globin chains (1). In 1925, Thomas Cooley and Pearl Lee described a form of severeanemia occurring in children of Italian origin, associated with splenomegaly and characteristic bone changes. Because all early cases were reported in children of Mediterranean origin, the disease was later termed thalassemia, from the Greek Corresponding author. Tel/fax 018/514-014 064/1810-880 word for sea, thalassa (2). It has been estimated that there are 180 million people who are heterozygotic carriers of various types of thalassemia throughout Asia, North Africa, and Europe. This high frequency of genes results in a significant annual number of births of homozygotic gene carriers and complex heterozygotic conditions (double heterozygot) that remain clinical problems (3,4). Thalassemias are classified, according to the particularglobin chain that is ineffectively produced, as ά, β, δβ and γδβ thalassemias. Thalassemia, which 95 Vesna Bogicevic, Gordana Kostic, Danijela Jovancic, Gordana Bjelakovic, Mira Ilic, Bojko Bjelakovic, Ljiljana Pejcic, Verica Ilic is caused by a decrease in the production of β-globin chains, affects multiple organs and is associated with considerable morbidity and mortality (5). The symptoms start when the g chain production is switched off and the b chains fail to form in adequate numbers (1). Manifestations of anemia include extreme pallor and enlarged abdomen due to hepatosplenomegaly (4). In many populations in which thalassemia is common, the genes for structural hemoglobin variants such as hemoglobins S, C, and E are also common, soit is not unusual for individuals to inherit a gene for thalassemia from one parent and that for a hemoglobin variant from the other. A combination of Hb Lepore with β-thalassemia results in a severe clinical condition resembling β-thalassemia major. Most of the important forms of thalassemia are inherited in a Mendelian recessive fashion (6). When one parent carries the β-thalassemia trait and the other parent the Hb Lepore trait, there is a 25% chance in each pregnancy that the child will be born with HbLepore/β-thalassemia. Treatment of patients with β-thalassemia major has improved dramatically during the past 40 years; however, the current clinical status of these patients remains poorly characterized (7). Regular red blood cell transfusions eliminate the complications of anemia and compensatory bone marrow expansion, permit normal development throughout childhood, and extend survival. In parallel, transfusions result in a "second disease" while treating the first, that of the inexorable accumulation of tissue iron that, without treatment (use of chelating therapy), is fatal in the second decade of life (5,8). CASE REPORT The boy I.U. six years of age, from Zitoradja, was admitted to the Children's Internal Clinic in Nis in July, 2005, due to paleness, exhaustion, and higher body temperature. Anamnesis: One day prior to admission, the boy got high body temperature (39,4°C) followed by headache, stomach pain, diarrhoea, and vomiting. Parents reported that in the last few months he had been paler than usual, which was the reason why the outpatient department doctor sent them for a hospital examination and treatment. From personal anamnesis we learn that it was the second child from the fourth pregnancy (the two prior terminated willingly). The delivery was in term, the baby was born vital, 4400/56. Early psychomotor development was proper. Since the boy was two years of age, sometimes, his urine has been dark-coloured and had severe paleness which lasted 96 for a few days. Except for often colds, up to now he has been treated in the outpatient department with iron medicines because of anemia, yet without significant improvement in the blood quality. In the family anamnesis there was no evidence of similar symptoms in the members of the nuclear family. From the status: On admission, the boy aged 6 years, conscious, subfebrile, eutrophic, BM 23kg, eupnoic RF 24/min, tachycardia SF 132/min, distinctly pale-yellow skin colour and visible mucus tissue, preserved muscle tonus, turgor, and skin elasticity. From the systems' findings we registered the presence of light hyperaemia of palatal arches, systolic noise over the entire precordium, painful sensitivity of abdomen to palpation and spleen enlargement for three transversal fingers bellow the left rib arch. The other systems findings were clear. Laboratory and clinical examination: Blood test results showed low values of erythrocytes (3,2x1012), haemoglobin (6,8g/dl), and hematocrit (22%), while the values of leukocytes and thrombocytes were within the range of referential values. The number of reticulocytes was 8/1000. On the preparation - distinctive anisopoikilocytosis – erythrocytes in the tear shape, fragmentary elyptocytes and a sporadic acidophilic erythroblasts. Urine: dark yellow to red colour, albumin in traces, urobilinogen positive, haemoglobin negative. In urine sediment - sporadic leukocytes, plenty of amorphous salts. Biochemical examinations: glycaemia, urea, creatinine, hepatogram, overall proteins and acidobasic status within the range of referential values. Total bilirubin 37,35 μmol/l (ref.values:020,52), indirect bilirubine 37,35 μmol/l (ref. values:5,13-15,39), direct bilirubin negative. Serum iron 14.2 μmol/l(ref.values:12,5-23,2), TIBC 42,2mol/l (ref.values:45-63), UIBC 28 μmol/l(ref.values:34,540,2). The LDH values increased (697), and ferritin normal. Direct Coombs test negative. Sodium in erythrocytes 14 .8 μmol/l (ref.values:18-21), Potassium in erythrocytes 91.6 μmol/l (ref. values: 80-86). Osmotic resistance of erythrocytes positive. Electrophoresis of hemoglobin – HbA1 32,7%, HbS 64,3%(0%), HbA2 3% . Normal adult hemoglobin contains the following components: HbA(95-98%), HbA2(2-3%), HbA1(3-6%) and HbF(<1%). Myelogram – hypercellularity of bone marrow. There are all developmental forms of all three myeloid threads, without morphological changes. Distinctively irritated erythroid thread. Case report of a patient with Thalassemia and hemoglobin lepore Abdomen ultrasound examination: liver, gallbladder, pancreas, and kidneys of normal echofinding. Spleen diameter over 15cm, homogenous, with free hilus. Paraaortal and paracaval spaces free. RTG pulmo et cor: Radiological finding of lungs and heart normal. During hospitalization, in order to deal with infection and correct the anemia, the parenteral antibiotic and corticosteroid therapy, Folic acid replacement and Vit. B12 with intravenous rehidration were administered. After ten days, the boy was discharged in good condition. The advice was to continue with Folan therapy and decrease cortico therapy according to the scheme until cessation. Because of the doubt of hereditary hemolitic anemia and impossibility of molecular-genetic examination in our institution, the boy and his parents were directed to the Research Center for Genetic Engineering and Biotechnology in Skoplje, to professor dr G.D.Efremov. The following findings of hemoglobin analysis were obtained (Figure 1). DISCUSSION The patient I.U. is a double heterozygote for β -thalassemia and Hb Lepore. Molecular characterization of beta globin genes showed that the gene inherited from the mother was a hybrid gene under whose control Hb Lepore was created, while the gene inherited from the father was mutated in 6th nucleotide of the first interventive sequence (IVS-I6). The mother of the patient is the carrier (heterozygote) for HbLepore, while the father is the carrier (heterozygote) for beta-thalassemia (IVS-I-6). After diagnosis, during the previous two years, the boy was under constant hematological control, that included regular blood control, occasional checks of ferritin level, and ultrasound examination of the spleen diameter. He was in a good condition, and did not fall behind in growth and development in relation to his mates. Fifteen days a month, he took tabletes Folan. The aim was early prevention and curing of infections. Until a few months ago, hemoglobin values were in the range of 8,3 to 10 g/dl, so that there has not been any erythrocyte substitution so far. However, at the last check-up, the hemoglobin values were up to 8,5g/l., the spleen diameter at the last control was 17cm (normal diameter for that age being 8,5 – 11cm), and the boy complained of occasional discomfort in the sense of swelling and weight in the stomach. As splenomegaly is obviously aggravating the anemia and disturbs the boy's acitivity by pressing the abdomen organs, splenectomy is planned after vaccination. CONCLUSION We presented a patient with intermediary type of beta-thalassemia which is rare in our country, but frequently occurs in the population of the neighbouring countries - Macedonia, Greece, South Italy. Due to constant migrations during last ten years, we may expect higher occurence of these hereditary types of hemolytic anemias. Diagnostic procedures should be directed towards discovering molecular-genetic abnormalities of hemoglobin, unless there are no usual reasons for its occurrence in the patient with anemia. Figure 1. Familial haemoglobin analysis 97 Vesna Bogicevic, Gordana Kostic, Danijela Jovancic, Gordana Bjelakovic, Mira Ilic, Bojko Bjelakovic, Ljiljana Pejcic, Verica Ilic REFERENCES 1. Stefanovic S. Anemije zbog naslednih poremećaja sinteze hemoglobina. U: Hematologija. Medicinska knjiga, Beogad-Zagreb,1989;359-405. 2. Olivieri NF. The ß-Thalassemias. NEJM 1999; 341(2):99-109. 3. Patrinos GP , Kollia P , Papadakis MN Molecular diagnosis of inherited disorders: lessons from hemoglobinopathies. Human Mutation 2005;26(5): 399 – 412. 4. Cvetkovic P.Talasemija.U: Savremeno lečenje bolesti krvi dečjeg doba.Mrlješ,Beograd, 1995;119-136. 5. Rund D, Rachmilewitz E. ß – Thalassemia. NEJM 2005; 353(11): 1135-1146. 6. Weatherall DJ. Fortnightly review: The thalassemias. BMJ 1997;314:1675 . 7. Cunningham MJ, Macklin EA, Neufeld EJ, Cohen AR. Complications of ß-thalassemia major in North America. Blood 2004;104:34-39. 8. Nancy F, Brittenham O, BrittenhaGM .IronChelating Therapy and the Treatment of Thalassemia. Blood 1997; 89 (3) :739-761. PRIKAZ PACIJENTA SA ß - TALASEMIJOM I HEMOGLOBINOM LEPORE Vesna Bogićević, Gordana Kostić, Danijela Jovančić, Gordana Bjelaković, Mira Ilić, Bojko Bjelaković, Ljiljana Pejčić, Verica Ilić Dečija interna klinika Kliničkog centra Niš SAŽETAK Talasemije su nasledne bolesti sinteze hemoglobina koje se karakterišu smanjenom proizvodnjom jednog ili drugog globinskog lanca adultnog hemoglobina. Eritrociti su podložni mehaničkim ostećenjima i lako stradaju. Transfuzije krvi u odredjenim vremenskim periodima su nekim ljudima koji boluju od talasemije potrebne za preživljavanje. Prikazujemo šestogodišnjeg dečaka I.U. iz Žitoradje, koji je jula 2005. godine primljen na Dečiju internu kliniku u Nišu zbog bledila, malaksalosti, povišene telesne temperature i simptoma gastroenterokolitisa. Tokom hospitalizacije isključena je autoimuna hemolizna anemija i primenjena terapija u cilju sanacije infekcije uz suplementaciju Folnom kiselinom i Vitaminom B12. Iako niko od članova uže porodice nije imao slične tegobe, kod dečaka je na osnovu ultrazvučnog nalaza uvećane slezine i podataka o prethodno bezuspešnom lečenju anemije preparatima gvoždja, postavljena sumnja da se radi o naslednoj hemoliznoj anemiji. Molekularno genetskim ispitivanjem, kod dečaka je otkrivena heterozigotnost za beta talasemiju i Hb Lepore, redak oblik nasledne hemolizne anemije na prostorima Srbije. Tokom protekle dve godine od dijagnoze, dečak je u dobroj kondiciji i ne zaostaje u rastu i razvoju u odnosu na vršnjake. Vrednosti hemoglobina se održavaju na zadovoljvajućem nivou, te do sada ni jednom nije primenjena transfuzija eritrocita. Planira se splenektomija radi otklanjanja subjektivnih tegoba koje dečak oseća poslednjih meseci. Ključne reči: talasemija, hemoglobin Lepore, splenomegalija 98 ACTA FAC. MED. NAISS. INSTRUCTIONS FOR AUTHORS ACTA FACULTATIS MEDICAE NAISSENSIS is the official journal of the Nis University Faculty of Medicine. It publishes review articles, original scientific papers, professional contributions, case reports, and reports on diagnostic and therapeutic procedures pertaining to a specific medical problem treated through a multidisciplinary approach. ACTA FACULTATIS MEDICAE NAISSENSIS is cited in www.IndexCopernicus.com Annual subscription rate (Volume 23, 4 issues, 2006) print edition and online access: din 1600 / E 50. For further information, please contact: E-mail: bojana@medfak.ni.ac.yu General Instructions All papers should be submitted in English (one original and three photocopies) together with a CD. The manuscript should be typed on one side only of A4 paper, in MS Word, double-spaced, using 2.5cm wide margins all around and Times New Roman 12 font. 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Abbreviations other than standard SI units of measurements are not used. Author(s) (up to 6). Manuscripts must be accompanied by statements signed by all coauthors. This must include information on prior publication or duplicate publication or submission elsewhere. Text Every reference, figure and table is cited in the text in numerical order; order of citation in text determines the number given to each. References Refernces (up to 15) are identified in the text by Arabic numerals and numbered in order cited. References are double spaced on sheets separate from the text in the Vancouver style. Examples: 1. Wing AJ, Broyer M, Brunner FP et al. Combined report on regular dialysis and transplantation in Europe. Proc Eur Dial TransplantAssoc 1983; 20: 5-78. 2. Marisavljevic D, Djukanovic Lj, Lezajic V. The effect of recombinant human erythropoietin on erythrocytopoiesis in patients with renal anemia. Srp Arh 1992; 120: 281-285. (in Serbian) Books: 3. Roberts NK. The cardiac conducting system and the His bundle electrogram. Appleton-Century-Crofts, New York, 1981: 49-56. Chapters: 4. Rycroft RJG, Calnan CD. Facial rashes among visual display unit (VDU) operations. In: Pearce BG (ed), Health hazards of VDUs. Willey, London, 1984: 13-15. Figures All illustrations are identified on the back with figure number in Arabic numerals, title of paper, and name of the first author. Top should be inicated with an arrow. Tables Tables are typed double-spaced on separate sheets with the table number (in Arabic numerals) and title above and explanatory notes below. Figure legends Figure legends are typed double-spaces on sheets separate from the text. Ethical standards The study should comply with the Declaration of Helsinki. Manuscripts should be submitted to the Editors-in-Chief: Marina Deljanin-Ilic, M.D. Ph. D. Associate Professor E-mail: marinadi@bankerinter.net Aleksandar Nagorni, M.D., Ph. D. Associate Professor E-mail: anagorni@bankerinter.net Faculty of Medicine 81 Dr Zoran Djindjic Blvd. 18000 Nis, Serbia Phone: +381 18 226 712 Fax: +381 18 238 770 ana@medfak.ni.ac.yu bojana@medfak.ni.ac.yu ACTA FACULTATIS MEDICAE NAISSENSIS Cezary Kłosiński, Anna Lasecka, Dariusz Świetlik BRIDGES MADE OF COMPOSITES REINFORCED WITH GLASS FIBRE, ANCHORED ONABUTMENT TEETH WITH CROWN INLAYS – SELECTED CASES .............................................. 53 Dusan Vlatkovic, Marko Vukovic REVISING HIPARTHROPLASTY .................................................................................................................................. 59 Ljiljana Vasic AROLE OF CYFRA21-1 BETWEEN TUMOR MARKERS FOR NON-SMALL-CELL LUNG CANCER ................... 65 Aleksandar Tasic, Suzana Tasic, Natasa Miladinović-Tasic, Dragan Zdravkovic, Jovana Djordjevic PREVALENCE OF DIROFILARIAREPENS - CAUSE OF ZOONOSIS IN DOGS ......................................................... 71 Maja Simonovic, Grozdanko Grbesa CLINICAL PRESENTATION OF COMORBID DEPRESSIONAND POST-TRAUMATIC STRESS DISORDER ....... 75 Sasa Karalejic, Desimir Mladenovic, Ivan Micic, Zoran Golubovic, Predrag Stojiljkovic, Danilo Stojiljkovic TREATMENT OF THE FEMORAL SHAFT FRACTURE BY SELF-DYNAMISABLE INTERNAL FIXATOR MITKOVIC ................................................................................... 83 Tatjana Radjenovic Petkovic, Tatjana Pejcic, Vojin Savic, Predrag Vlahovic, Desa Nastasijevic Borovac, Danijela Radojkovic USE OF C- REACTIVE PROTEIN IN PLEURAL FLUID FOR DIFFERENTIAL DIAGNOSIS OF BENIGNAND MALIGNANT EFFUSION ................................................................................................................. 89 Vesna Bogicevic, Gordana Kostic, Danijela Jovancic, Gordana Bjelakovic, Mira Ilic, Bojko Bjelakovic, Ljiljana Pejcic, Verica Ilic CASE REPORT OFAPATIENT WITH THALASSEMIAAND HEMOGLOBIN LEPORE ............................................ 95