Current Guidelines For Diagnosis And Management
Transcription
Current Guidelines For Diagnosis And Management
+ ImprovIng care through evIdence GUIDELINES UpDatE | print | SUBSCriBE | WEBSitE the Manage22 || Guideline DiagnosisforAnd Management Of Acute ment Of Bronchiolitis PAGE PAGE And Chronic Pain Subcommittee on In Diagnosis Sickle Cell Disease. And Management of BronAmerican Pain Society. . chiolitis, Pediatrics PAGE 3 | Editorial Comment 4 | The Management of Sickle Cell Disease. National PAGE 6 | Bronchiolitis In Children PAGE PAGE PAGE Institutes of Health, National Scottish Intercollegiate Heart Lung and Blood Guidelines Network Institute. 8 | Editorial Comment 9 | Evidence-Based Clinical Practice Guideline For Medical Management Of Bronchiolitis Cincinnati Children's Hospital Medical Center PAGE 10 | Editorial Comment Current Guidelines Guidelines For For Current Diagnosis Management Of Sickle CellAnd Disease: BronchiolitisOfInAcute The Complications Emergency Management Department In this issue of EM Practice Guidelines Update, 2 guidelines II n this issue ofthe EM management Practice Guidelines Update, practice guidelines that addressing of sickle cell3 disease (SCD) are address theAs management bronchiolitisSCD-related are reviewed. complications, Bronchiolitis is a reviewed. a result ofofnumerous viral-induced inflammatory disease of the lower respiratory tract in infants, patients with SCD have significantly diminished life expectancy. characterized by acute inflammation, edema, and necrosis of epithelial cells Although patients will mucous be followed by subspecialty hemalining smallmost airways; increased production; and bronchospasm. tologists, SCD is fundamentally a “‘disease oftachypnea, emergencies.”’ Signs and symptoms of bronchiolitis include rhinitis, wheezing, cough, crackles, use of accessory muscles, and/or flaring. The majorEmergency clinicians should be familiar with nasal the recommendaity of cases of bronchiolitis are caused bySCD respiratory syncytial virus (RSV); tions around management of acute complications, because other viral causes include metapneumovirus, influenza, parainfluenza, and failure to appreciate the nuances of care in these brittle patients adenovirus. There are more than 200,000 annual emergency department may place them at risk for short-term morbidity and mortality. The (ED) visits in the US for bronchiolitis among children less than 2 years of methodology these admission practice guidelines variesoccur greatly–from December age, with a 19%ofhospital rate.1 Most cases evidencebased to expert opinion–and thus must applied toand through March. There is wide variation in how bronchiolitisbe is diagnosed treated. The guidelines reviewed here use an evidence-based approach to emergency practice with caution and pragmatism. address diagnosis and acute management of this common and potentially severe respiratory illness. Practice Guideline Impact Guideline Impact •Practice In the management of acute SCD pain crises, bolus normal • • • • Bronchiolitis is a clinical diagnosis; radiographic and laboratory testing saline not recommended unless the patient isbronchiolitis. hypovolemare not is indicated in the assessment of uncomplicated ic. In euvolemic patients, intravenous hydration should not Infants who less maintenance than 3 months of age, were born prematurely, exceed 1.5are times with D5 ½ NS. and/or have underlying cardiac or pulmonary disease should be considered separately, of because have a higher of apnea or In the management acutethey SCD pain crises,risk specific recrespiratory insufficiency in the setting of bronchiolitis. ommendations exist with regard to opiate choice and adjuvant Whilemedications. bronchodilators are not routinely indicated in the treatment of bronchiolitis, a trial of nebulized albuterol and/or epinephrine may be • In patientsinhaled with SCD and suspected criteria performed; bronchodilators shouldinfection, be continued only ifexist thereto is identify for outpatient treatment. a positivecandidates clinical response. •• Corticosteroids and antibiotics arethe not diagnosis indicated forand the treatment treatment ofof Separate algorithms exist for bronchiolitis. stroke in adults and children with SCD. Author April 2010 December 2009 Volume Volume2,1,Number Number42 Editor-In-Chief Maia S. Rutman, MD Medical Director, Pediatric Emergency Services, Dartmouth-Hitchcock Medical Center; Assistant Professor of Pediatric Emergency Medicine, Dartmouth Reuben J. Strayer, MD Medical School, Lebanon, Assistant Professor ofNH Emergency Medicine, Mount Sinai School of Medicine, New York, NY Editor-In-Chief Editorial Board MD Reuben J. Strayer, Assistant Professor of Emergency Medicine, Mount Sinai School of Medicine, Andy Jagoda, MD, FACEP New York, NY Professor and Chair, Department of Emergency Medicine Mount Sinai School of Medicine, New York, NY Editorial Board Andy MD, FACEP Erik Jagoda, Kulstad, MD, MS Professor andDirector, Chair, Department Emergency Medicine Research AdvocateofChrist Medical Center Mount Sinai School of Medicine, New York, NY Department of Emergency Medicine, Oak Lawn, IL Erik Kulstad, MD, MDCM, MS Eddy S. Lang, CCFP (EM), CSPQ Research Director, Department of University, Emergency Medicine, Advocate Christ Associate Professor, McGill SMBD Jewish General Medical Center, Oak Lawn, IL Hospital, Montreal, Canada Eddy S. Lang, MDCM,MD CCFP (EM), CSPQ Lewis S. Nelson, Senior Researcher, Alberta Services; Associate Professor, University Director, Fellowship in Health Medical Toxicology, New York City Poisonof Calgary; Professor, McGill University,Department Montreal, Quebec, Canada ControlAdjunct Center, Associate Professor, of Emergency Lewis S. Nelson, MD Center, New York, NY Medicine, NYU Medical Director, Fellowship in Medical Toxicology, New York City Poison Control Gregory M. Press, MD, RDMS Center, Associate Professor, Department of Emergency Medicine, NYU Medical Assistant Professor, Director of Emergency Ultrasound, Emergency Center, New York, NY Ultrasound Fellowship Director, Department of Emergency Medicine, Gregory M.ofPress, RDMS Medical School, Houston, TX University Texas MD, at Houston Assistant Professor, Director of Emergency Ultrasound, Emergency Ultrasound Maia Rutman, MD Fellowship Director, Department of Emergency Medicine, University of Texas at Medical Director, Pediatric Emergency Services, DartmouthHouston Medical School, Houston, TX Hitchcock Medical Center; Assistant Professor of Pediatric Maia S. Rutman, MD Dartmouth Medical School, Lebanon, NH Emergency Medicine, Medical Director, Pediatric Emergency Services, Dartmouth-Hitchcock Medical ScottAssistant M. Silvers, MD Center; Professor of Pediatric Emergency Medicine, Dartmouth Chair, School, Department of Emergency Medicine Medical Lebanon, NH Mayo Clinic, Jacksonville, FL Scott M. Silvers, MD Scott Weingart, MD FACEP Chair, Department of Emergency Medicine, Mayo Clinic, Jacksonville, FL Assistant Professor, Department of Emergency Medicine, Elmhurst Scott Weingart, FACEP Hospital Center,MD, Mount Sinai School of Medicine, New York, NY Assistant Professor, Director of the Division of Emergency Critical Care, Department of Emergency Medicine, Mount Sinai School of Medicine, Prior to beginning this activity, see “Physician CME Information” on New York, NY page 9. Prior to beginning this activity, see “Physician CME Information” on page 12. Editor’s Note: To read more about this publication Editor’s Note: To read more about this publicaand the background and methodologies for practice tion and the background and methodologies for guideline development, http://www.ebmedicine.net/ practice guideline development, go to: content.php?action=showPage&pid=107&cat_id=16 http://www.ebmedicine.net/introduction | print | SUBSCRIBE | WEBSITE Current Guidelines For Diagnosis And Management of Bronchiolitis In The ED Clinical Practice Guideline: Diagnosis And Management Of Bronchiolitis2 Subcommittee on Diagnosis and Management of Bronchiolitis Pediatrics. 2006;118(4):1174-1793. Link: http://aappolicy.aappublications.org/cgi/content/full/pediatrics;118/4/1774 T applies to previously healthy children aged 1 month to 2 years presenting with bronchiolitis, which is defined as “a viral upper respiratory prodrome followed by increased respiratory effort and wheezing in children less than 2 years of age. Clinical signs and symptoms of bronchiolitis consist of rhinorrhea, cough, wheezing, tachypnea, and increased respiratory effort manifested as grunting, nasal flaring, and intercostal and/or subcostal retractions.” Only recommendations pertinent to emergency medicine are abstracted here. his document was developed by a committee on the diagnosis and management of bronchiolitis, convened by the American Academy of Pediatrics (AAP) with the support of the American Academy of Family Physicians, the American Thoracic Society, the American College of Chest Physicians, and the European Respiratory Society. The committee was chaired by a primary care pediatrician with expertise in clinical pulmonology and included experts in fields of general pediatrics, pulmonology, infectious disease, emergency medicine, epidemiology, and medical informatics. All panel members were identified and potential conflicts were disclosed. The group identified 4 clinical questions and conducted a literature review according to explicit criteria. Article inclusion criteria were specified. The process by which evidence was evaluated for quality was not described. The following recommendations below are abstracted from the full guideline. To view the original guideline, go to: http://aappolicy.aappublications.org/cgi/content/full/pediatrics;118/4/1774 Effectiveness of diagnostic tools for diagnosing bronchiolitis in infants and children • Recommendation 1a (evidence level B): For bronchiolitis, history and physical examination should be the basis for diagnosis and disease severity assessment. Laboratory and radiologic studies should not be ordered routinely. • Recommendation 1b (evidence level B): When making decisions about management of children with bronchiolitis, the following risk factors for severe disease should be assessed: 1) age less than 12 weeks; 2) a history of prematurity; 3) underlying cardiopulmonary disease; and 4) immunodeficiency. Recommendations were graded based on the strength of evidence for each question: • • • • • Level A: Well-designed randomized, controlled trials (RCTs) or diagnostic studies on relevant populations. Level B: RCTs or diagnostic studies with minor limitations; overwhelmingly consistent evidence from observational studies. Level C: Observational studies (case-control and cohort design). Level D: Expert opinion, case reports, reasoning from first principles. Level X: Exceptional situations in which validating studies cannot be performed and there is a clear preponderance of benefit or harm. Efficacy of pharmaceutical therapies for treatment of bronchiolitis • Recommendation 2a (evidence level B): The management of bronchiolitis should not routinely include bronchodilators. • Recommendation 2b (option, evidence level B): The use of α-adrenergic or β-adrenergic medication is an option if given in The target provider population is defined as pediatricians, family physicians, emergency medicine specialists, hospitalists, nurse practitioners, and physician assistants who care for children. The guideline EM Practice Guidelines Update © 2010 2 ebmedicine.net • April 2010 | print | SUBSCRIBE | WEBSITE • • • Current Guidelines For Diagnosis And Management of Bronchiolitis In The ED a carefully monitored trial. The use of inhaled bronchodilators should be continued only if objective means of evaluation document a positive clinical response to the trial. Recommendation 3 (evidence level B): The management of bronchiolitis should not routinely include the use of corticosteroid medications. Recommendation 4 (evidence level B): Children with bronchiolitis should not be treated routinely with ribavirin. Recommendation 5 (evidence level B): Only children with specific indications of bacterial infection should be given antibacterial medications. Treatment of the bacterial infection should be the same as it would be in the absence of bronchiolitis. Editorial Comment Few presentations are as anxiety-provoking to the ED clinician as the infant with respiratory distress. In this practice guideline, the AAP describes the clinical features of bronchiolitis in order to assist clinicians in differentiating between bronchiolitis and other causes of dyspnea in this population. This is especially useful for ED clinicians who do not routinely treat infants and provides a basis for recommendations to optimize the clinical evaluation and limit diagnostic testing. The guideline also evaluates treatments frequently used in infants with bronchiolitis and finds little evidence to support their use in most cases. The clinical course of bronchiolitis is described as “variable and dynamic, ranging from transient events such as apnea or mucus plugging to progressive respiratory distress from lower airway obstruction.” Increased risk of severe disease is associated with premature birth (< 37 weeks gestation) and young age of the child (< 12 weeks). A recent review undertaken to determine the incidence of apnea in infants hospitalized with RSV bronchiolitis found a significantly higher risk of apnea in premature infants (reported in 5 of 7 relevant studies) and a substantially higher incidence of apnea in infants < 3 months of age (reported in 4 of 4 relevant studies).3 Which associated symptoms should be assessed in infants with bronchiolitis? • Recommendation 6a (strong recommendation, evidence level X): For infants with bronchiolitis, hydration and ability to take fluids orally should be assessed by clinicians. Indications for oxygen saturation monitoring and oxygen administration • Recommendation 7a (option, evidence level D): If oxyhemoglobin saturation (SpO2) falls persistently below 90% in infants who were previously healthy, supplemental oxygen is indicated. Adequate supplemental oxygen should be used to maintain SpO2 ≥ 90%. If SpO2 is ≥ 90%, the infant is feeding well, and has minimal respiratory distress, supplemental oxygen may be discontinued. Diagnostic maneuvers not routinely recommended for infants with bronchiolitis include chest radiography, complete blood counts, urinalysis, and virologic testing. Chest Radiography. According to data reviewed in the guideline, chest radiographic findings have not been shown to correlate with severity of disease and are associated with antibiotic administration but no difference in time to recovery. A review of diagnostic testing in bronchiolitis found 17 studies presenting chest x-ray data in which abnormalities on chest x-ray ranged from 20% to 96% and concluded that insufficient data exist to show that chest x-rays reliably distinguish between viral and bacterial disease or predict severity of disease.4 A subsequent published study found that radiography in children aged 2 to 23 months with typical bronchiolitis was almost always consistent with bronchiolitis (except in 2 of 265 cases, neither of which indicated a change in acute management), and found that ■ EM Practice Guidelines Update © 2010 3 ebmedicine.net • April 2010 | print | SUBSCRIBE | WEBSITE Current Guidelines For Diagnosis And Management of Bronchiolitis In The ED subsequent study supports this claim, finding that in febrile children admitted with bronchiolitis, the probability of concurrent SBI in patients with a white blood cell count (WBC) count < 5000 and 15,00030,000 was very low and no different than patients with a normal WBC count.11 clinicians were more likely to treat with antibiotics after reviewing radiographs even though the radiographic findings did not support treatment.5 Another recent study found poor inter-observer agreement for x-ray interpretation in children with lower respiratory tract infections, also leading to potential overuse of antibiotics.6 Despite its demonstrated lack of utility in bronchiolitis, chest radiography is prudent in the emergency setting to address the differential diagnosis in patients with severe dyspnea or atypical presentations. Virologic Testing. The guideline states that virologic testing, specifically for RSV, has been shown to rarely alter management decisions or outcomes for the majority of children with clinically diagnosed bronchiolitis. A review of diagnostic testing in bronchiolitis found numerous studies demonstrating that RSV tests have acceptable sensitivity and specificity, but no data showing that RSV testing affects clinical outcomes in typical cases of the disease.4 Testing For Serious Bacterial Infections. The AAP practice guideline states that the occurrence of serious bacterial infections (SBI) such as bacteremia, urinary tract infection (UTI), and meningitis is very low in infants with bronchiolitis, but does not make a specific recommendation regarding testing for such infections. The data cited in the guideline include a prospective study in which the incidence of UTI in RSV-positive infants ≤ 60 days of age was 5.4% compared with 10.1% in RSV-negative infants (risk difference: 4.7%, 95% CI: 1.4%-8.1%). In contrast, the rate of bacteremia in this study was very low in both RSV-positive and RSV-negative infants (1.1% vs 2.3%, risk difference 1.2%; 95% CI: -0.4%-2.7%), and 0 of the 251 RSVpositive infants with cerebrospinal fluid cultured had bacterial meningitis.7 In a study of infants ≤ 90 days of age presenting to an ED with RSV-positive bronchiolitis, 5 of 69 (7.2%) tested infants had UTI, 1 of 85 (1.2%) tested infants had true bacteremia, and 0 tested infants had meningitis.8 A more recent study of hospitalized infants ≤ 90 days of age found a 2.2% (3 of 136) incidence of UTI in infants with clinical bronchiolitis (and no cases of bacteremia or meningitis in these infants) compared with a 9.3% (29 of 312) incidence of UTI/urosepsis in infants without clinical bronchiolitis.9 An office-based study of febrile infants found testing for SBI to be less frequent in infants with clinical bronchiolitis, and no known SBIs identified among 218 infants with clinical bronchiolitis.10 Given this conflicting data, many clinicians do perform urinary testing in young infants with fever and bronchiolitis in the ED setting. Bronchodilators. The guideline states that there has been little demonstrated benefit from various frequently used management modalities, although it stipulates that a trial of a bronchodilator may be warranted because some infants show clinical response to either albuterol or epinephrine. A Cochrane review of bronchodilators other than epinephrine for bronchiolitis found that bronchodilators produce small, short-term improvements but do not affect rate of hospitalization or duration of admission.12 A Cochrane review of inhaled epinephrine found no reduction in admission rates among children in the treatment group, although some studies found a short-term improvement in respiratory rate, oxygen saturation, and clinical score in the outpatient setting.13 Oral Steroids. The guideline reviews a meta-analysis that showed no consistent evidence to support the use of oral steroids in infants with bronchiolitis and 2 studies that showed no benefit with inhaled steroids. A subsequent Cochrane review found no benefit in length of stay or clinical score in infants with bronchiolitis treated with systemic glucocorticoids as compared to placebo, as well as no reduction in admission or revisit rates.14 Antiviral Therapies. While the data about the utility of antiviral agents are suboptimal, the guideline recommends reserving antiviral therapy for children with severe disease or who are at risk for severe Complete Blood Counts. The guideline states that use of complete blood counts (CBCs) has not been shown to be useful in diagnosing or managing bronchiolitis, but cites minimal supporting evidence. A EM Practice Guidelines Update © 2010 4 ebmedicine.net • April 2010 | print | SUBSCRIBE | WEBSITE Current Guidelines For Diagnosis And Management of Bronchiolitis In The ED disease. Antibiotics are recommended only for infants with concurrent bacterial infection (such as UTI or acute otitis media) and not for those with radiographic atelectasis or infiltrates, which are often misinterpreted as possible pneumonia. Other Treatment Modalities. Treatment modalities that are not discussed in the guideline include nebulized hypertonic saline, noninvasive ventilation, and heliox (a low-density gas mixture of 70% helium and 30% oxygen). A recent Cochrane review found evidence to suggest improvement in clinical severity in infants with bronchiolitis treated with nebulized 3% saline.15 Nasal continuous positive airway pressure ventilation is increasingly used in the pediatric intensive care unit (PICU) setting with resultant decreases in rates of intubation and should be considered for ED use in infants in severe respiratory distress.16-18 Heliox is also being used in the PICU setting to treat infants with bronchiolitis and may be appropriate for ED use.19-21 Hydration And Oxygen. The 2 treatments endorsed by the guideline are intravenous (IV) hydration and oxygen administration. The guideline recommends carefully assessing hydration status of these infants, and administering IV fluids if feeding is compromised by tachypnea and/or increased work of breathing. The guideline recommends administering oxygen if SpO2 is < 90% despite suctioning the nose and oral airway. EM Practice Guidelines Update © 2010 ■ 5 ebmedicine.net • April 2010 | print | SUBSCRIBE | WEBSITE Current Guidelines For Diagnosis And Management of Bronchiolitis In The ED Bronchiolitis In Children. A National Clinical Guideline22 Scottish Intercollegiate Guidelines Network. #91. November 2006. Link: http://www.sign.ac.uk/guidelines/fulltext/91/index.html T his document was developed by a multidisciplinary group of practicing clinicians using the standard SIGN (Scottish Intercollegiate Guidelines Network) methodology. A systematic literature review was carried out using an explicit search strategy devised by the SIGN information officer in collaboration with members of the guideline development group. The guideline was also reviewed in draft form by independent expert referees. As a final quality control check, the guideline was reviewed by an editorial group comprising the relevant specialty representatives on SIGN council. The target provider population is defined as health professionals in primary and secondary care involved in the management of infants with bronchiolitis, parents and carers, and healthcare managers and policymakers. The guideline applies to infants < 12 months of age with clinical bronchiolitis as well as premature infants (≤ 37 weeks gestational age) and infants with congenital heart disease or underlying respiratory disease up to 24 months of age. Bronchiolitis is defined according to a UK consensus guideline as “a seasonal viral illness characterized by fever, nasal discharge and dry, wheezy cough. On examination there are fine inspiratory crackles and/or high-pitched expiratory wheeze.” Evidence was evaluated for quality according to predefined, specified criteria and assigned to 1 of 8 levels (1++, 1+, 1-, 2++, 2+, 2-, 3, and 4). Recommendations were graded based on the strength of evidence for each question. • • • • • The following recommendations are excerpted from the full guideline. Only recommendations pertinent to emergency medicine are excerpted here. Grade A: At least 1 meta-analysis, systemic review of RCTs, or RCT rated as 1++ and directly applicable to the target population; or a body of evidence consisting principally of studies rated as 1+, directly applicable to the target population, and demonstrating overall consistency of results. Grade B: A body of evidence including studies rated as 2++, directly applicable to the target population, and demonstrating overall consistency of results; or extrapolated evidence from studies rated as 1++ or 1+. Grade C: A body of evidence including studies rated as 2+, directly applicable to the target population and demonstrating overall consistency of results; or extrapolated evidence from studies rated as 2++. Grade D: Evidence level 3 or 4; or extrapolated evidence from studies rated as 2+. Good practice points: Recommended best practice based on the clinical experience of the guideline development group. EM Practice Guidelines Update © 2010 Diagnosis • Recommendation Grade D: The absence of fever should not preclude the diagnosis of acute bronchiolitis. • Recommendation Grade D: In the presence of high fever (axillary temperature ≥ 39°C [102.2°F]) careful evaluation for other causes should be undertaken before making a diagnosis of bronchiolitis. • Recommendation Grade D: Increased respiratory rate should arouse suspicion of lower respiratory tract infection, particularly bronchiolitis or pneumonia. • Recommendation Grade D: A diagnosis of acute bronchiolitis should be considered in an infant with nasal discharge and a wheezy cough, in the presence of fine inspiratory crackles and/or high-pitched expiratory wheeze. Apnea may be a presenting feature. 6 ebmedicine.net • April 2010 | print | SUBSCRIBE | WEBSITE • • Current Guidelines For Diagnosis And Management of Bronchiolitis In The ED • Recommendation Grade D: Healthcare professionals should take seasonality into account when considering the possible diagnosis of acute bronchiolitis. Good practice point: It is unusual for infants with bronchiolitis to appear “toxic.” A “toxic” infant who is drowsy, lethargic or irritable, pale, mottled, and tachycardic requires immediate treatment. Careful evaluation for other causes should be undertaken before making a diagnosis of bronchiolitis. • • Risk Factors For Severe Disease • Recommendation Grade C: Healthcare professionals should be aware of the increased need for hospital admission in infants born at less than 35 weeks gestation and in infants who have congenital heart disease or chronic lung disease of prematurity. • Recommendation Grade C: Healthcare professionals should inform families that parental smoking is associated with increased risk of RSV-related hospitalization. • Treatment • Recommendation Grade B: Nebulized ribavirin is not recommended for treatment of acute bronchiolitis in infants. • Good practice point: Antibiotic therapy is not recommended in the treatment of acute bronchiolitis in infants. • Recommendation Grade B: Inhaled beta-2 agonist bronchodilators are not recommended for the treatment of acute bronchiolitis in infants. • Good practice point: Nebulized ipratropium is not recommended for the treatment of acute bronchiolitis in infants. • Recommendation Grade A: Nebulized epinephrine is not recommended for the treatment of acute bronchiolitis in infants. • Recommendation Grade A: Inhaled corticosteroids are not recommended for the treatment of acute bronchiolitis in infants. • Recommendation Grade A: Oral systemic corticosteroids are not recommended for the treatment of acute bronchiolitis in infants. • Recommendation Grade A: Chest physiotherapy using vibration and percussion is not recommended in infants hospitalized with acute bronchiolitis who are not admitted to intensive care. • Recommendation Grade D: Nasal suction should be used to clear secretions in infants hospitalized with acute bronchiolitis who exhibit respiratory distress due to nasal blockage. Investigations • Recommendation Grade C: Pulse oximetry should be performed in every child who presents with acute bronchiolitis. • Good practice point: Infants with oxygen saturation ≤ 92% require inpatient care. • Good practice point: Decisionmaking around hospitalization of infants with oxygen saturations between 92% and 94% should be supported by a detailed clinical assessment, consideration of the phase of the illness, and take into account social and geographical factors. • Good practice point: Blood gas analysis (capillary or arterial) is usually not indicated in acute bronchiolitis. It may have a role in the assessment of infants with severe respiratory distress or who are tiring and may be entering respiratory failure. Knowledge of arterialized carbon dioxide values may guide referral to high dependency or intensive care. • Recommendation Grade C: Chest x-ray should not be performed in infants with typical acute bronchiolitis. • Good practice point: Chest x-ray should be considered in those infants where there is diagnostic uncertainty or an atypical disease course. EM Practice Guidelines Update © 2010 Recommendation Grade D: Unless adequate isolation facilities are available, rapid testing for RSV is recommended in infants who require admission to the hospital with acute bronchiolitis, in order to guide cohort arrangements. Recommendation Grade C: Routine bacteriological testing (of blood and urine) is not indicated in infants with typical acute bronchiolitis. Bacteriological testing of urine should be considered in febrile infants less than 60 days old. Recommendation Grade D: Full blood count is not indicated in assessment and management of infants with typical acute bronchiolitis. Recommendation Grade D: Measurement of urea and electrolytes is not indicated in the routine assessment and management of infants with typical acute bronchiolitis but should be considered in those with severe disease. 7 ebmedicine.net • April 2010 | print | SUBSCRIBE | WEBSITE Current Guidelines For Diagnosis And Management of Bronchiolitis In The ED • Recommendation Grade D: Nasogastric feeding should be considered in infants with acute bronchiolitis who cannot maintain oral intake or hydration. • Recommendation Grade D: Infants with oxygen saturation levels ≤ 92% or who have severe respiratory distress or cyanosis should receive supplemental oxygen by nasal cannula or facemask. Editorial Comment This guideline, developed as a national clinical guideline for Scottish healthcare providers, provides both graded recommendations and “good practice points.” It should be noted that the “good practice points” are not evidence-based, but are included in this summary because they address important issues in diagnosis and management of this disease. ■ Recommendations are similar to those in the AAP practice guideline, with a few notable exceptions. It is recommended here to administer supplemental oxygen to infants with SpO2 levels ≤ 92% and to hospitalize these infants. The choice of this SpO2 cutoff is based on 3 studies that found lower oxygen saturation levels on hospital admission to predict more severe disease and longer lengths of stay. It is also stated that infants with SpO2 between 92% and 94% may or may not require hospitalization, depending on the clinical picture, including the phase of the illness and “social and geographical factors.” Used with permission, Scottish Intercollegiate Guidelines Network. This guideline also recommends consideration of nasogastric feeding in infants who are unable to maintain oral intake or hydration, while the AAP guideline recommends IV hydration in these infants. This represents a general practice difference between the UK and the US. ■ EM Practice Guidelines Update © 2010 8 ebmedicine.net • April 2010 | print | SUBSCRIBE | WEBSITE Current Guidelines For Diagnosis And Management of Bronchiolitis In The ED Evidence-Based Clinical Practice Guideline For Infants With Bronchiolitis23 Bronchiolitis Guideline Team. Cincinnati Children's Hospital Medical Center. May 2006. Link: http://www.cincinnatichildrens.org/svc/alpha/h/health-policy/bronchiolitis.htm T Assessment And Diagnosis • Recommendation 3. It is recommended that the clinical history and physical examination be the basis for a diagnosis of bronchiolitis. • Recommendation 4. It is recommended that routine diagnostic studies (RSV swab, chest x-rays, cultures, capillary or arterial blood gases, rapid influenza, or other rapid viral studies) not be performed to determine viral infection status or to rule out serious bacterial infections. Such studies are not generally helpful and may result in increased rates of unnecessary admission, further testing, and unnecessary therapies. his document was developed by a bronchiolitis team consisting of Cincinnati Children's Hospital Medical Center (CCHMC) physicians, respiratory therapists, members of the Division of Health Policy Clinical Effectiveness, a community physician, a nursing/patient services provider, and ad hoc advisors. This interdisciplinary working group performed systematic and critical literature reviews using a grading scale for quality, assigning each citation to 1 of 12 categories, as well as examining current local practices. The recommendations were not graded. The group identified 6 objectives: 1) Decrease the use of unnecessary diagnostic studies; 2) Decrease the use of medications and respiratory therapy without observed improvement; 3) Improve the rate of appropriate admission; 4) Decrease the rate of nosocomial infection; 5) Improve the use of appropriate monitoring activities; and 6) Decrease length of stay. Management • Recommendation 5. It is recommended to consider starting supplemental oxygen when the saturation is consistently less than 91% and consider weaning oxygen when consistently higher than 94%. • Recommendation 6. It is recommended that scheduled or serial albuterol aerosol therapies not be routinely used. • Recommendation 7. It is recommended that a single administration trial inhalation using epinephrine or albuterol may be considered as an option, particularly when there is a family history for allergy, asthma, or atopy. • Recommendation 8. It is recommended that inhalation therapy not be repeated nor continued if there is no improvement in clinical appearance between 15 to 30 minutes after a trial inhalation therapy. • Recommendation 9. It is recommended that antibiotics not be used in the absence of an identified bacterial focus. Target users include attending physicians, community physicians and practitioners, ED clinicians, patient/family, and patient care staff. The guideline is intended primarily for use in children aged less than 12 months and presenting for the first time with bronchiolitis typical in presentation and clinical course. The following recommendations are excerpted from the full guideline. Only recommendations pertinent to emergency medicine are excerpted here. According to CCHMC, this guideline will be updated in 2010 and will be available on their website at the link given above. EM Practice Guidelines Update © 2010 9 ebmedicine.net • April 2010 | print | SUBSCRIBE | WEBSITE • • Current Guidelines For Diagnosis And Management of Bronchiolitis In The ED Recommendation 10. It is recommended that antihistamines, oral decongestants, and nasal vasoconstrictors not be used for routine therapy. Recommendation 11. It is recommended that steroid therapy not be given (as inhalations, intravenously, orally, or intramuscularly). Editorial Comment This guideline, along with an algorithm to guide clinical care, was developed for use at CCHMC and made publicly available on the CCHMC website. Recommendations are similar to those in the AAP guideline. Of note, recommendations are not graded for the quality of evidence upon which they are based. Respiratory Care Therapy • Recommendation 12. It is recommended that the infant be suctioned, when clinically indicated, before feedings, PRN, and prior to each inhalation therapy. • Recommendation 13. It is recommended that other routine respiratory care therapies not be used, as they have not been found to be helpful. These include chest physiotherapy, cool mist therapy, and aerosol therapy with saline. • Recommendation 14. It is recommended that repeated clinical assessment be conducted, as this is the most important aspect of monitoring for deteriorating respiratory status. • Recommendation 16. It is recommended that scheduled spot checks of pulse oximetry be utilized in infants with bronchiolitis. This guideline presents yet another SpO2 cutoff for administering supplemental oxygen (Recommendation 5): “consider starting supplemental oxygen when the saturation is consistently less than 91% and consider weaning oxygen when consistently higher than 94%.” This recommendation is derived from 1997 National Institutes of Health guidelines, which is an expert panel report. ■ ■ Used with permission, Cincinnati Children's Hospital Medical Center. EM Practice Guidelines Update © 2010 10 ebmedicine.net • April 2010 | print | SUBSCRIBE | WEBSITE Current Guidelines For Diagnosis And Management of Bronchiolitis In The ED References 1. 2. Subcommittee on Diagnosis and Management of Bronchiolitis. Clinical Practice Guideline: Diagnosis and management of bronchiolitis. Pediatrics. 2006;118(4):1174-1793. (Clinical practice guideline) 3. Ralston S, Hill V. Incidence of apnea in infants hospitalized with respiratory syncytial virus bronchiolitis: a systematic review. J Pediatr. 2009;155(5):728-733. (Systematic review) 4. Bordley WC, Viswanathan M, King VJ, et al. Diagnosis and testing in bronchiolitis: a systematic review. Arch Ped Adolesc Med. 2004;158(2):119-126. (Systematic review) 5. Schuh S, Lalani A, Allen U, et al. Evaluation of the utility of radiography in acute bronchiolitis. J Pediatr. 2007;150(4):429-433. (Prospective; 265 patients) 6. Bada C, Carreazo NY, Chalco JP, Huicho L. Inter-observer agreement in interpreting chest x-rays on children with acute lower respiratory tract infections and concurrent wheezing. Sao Paulo Med J. 2007;125(3):150-154. (Prospective; 200 patients) 7. Levine DA, Platt SL, Dayan PS, et al. Risk of serious bacterial infection in young febrile infants with respiratory syncytial virus infections. Pediatrics. 2004;113(6):1728-1734. (Prospective; 1248 patients) 8. Oray-Schrom P, Phoenix C, St Martin D, Amoateng-Adjepong Y. Sepsis workup in febrile infants 0-90 days of age with respiratory syncytial virus infection. Pediatr Emerg Care. 2003;19(5):314-319. (Retrospective; 191 patients) 9. 13. Hartling L, Wiebe N, Russell K, et al. Epinephrine for bronchiolitis. Cochrane Database Syst Rev. 2004;1:CD003123. (Systematic review) Mansbach JM, Emond JA, Camargo CA. Bronchiolitis in US emergency departments 1992 to 2000: epidemiology and practice variation. Pediatr Emerg Care. 2005;21(4):242-247. (Retrospective descriptive study) 14. Patel H, Platt R, Lozano JM. WITHDRAWN: Glucocorticoids for acute viral bronchiolitis in infants and young children Cochrane Database Syst Rev. 2008;1:CD004878. (Systematic review) 15. Zhang L, Mendoza-Sassi RA, Wainright C, Klassen TP. Nebulized hypertonic saline solution for acute bronchiolitis in infants. Cochrane Database Syst Rev. 2008;4:CD006458. (Systematic review) 16. Cambonie G, Milesi C, Jaber S, et al. Nasal continuous positive airway pressure decreases respiratory muscles overload in young infants with severe acute viral bronchiolitis. Intensive Care Med. 2008;34:1865-1872. (Prospective; 12 patients) 17. Javouhey E, Barats A, Richard N, Stamm D, Floret D. Non-invasive ventilation as primary ventilatory support for infants with severe bronchiolitis. Intensive Care Med. 2008;34(9):1608-1614. (Retrospective; 80 patients) 18. Mayordomo-Colunga J, Medina A, Rey C, et al. Success and failure predictors of non-invasive ventilation in acute bronchiolitis. An Pediatr. 2009;70(1):34-39. (Prospective; 47 patients) 19. Cambonie G, Milesi C, Fournier-Favre S, et al. Clinical effects of heliox administration for acute bronchiolitis in young infants. Chest. 2006;129(3):676-682. (Prospective; 12 patients) 20. Martinon-Torres F, Rodriguez-Nunez A, Martinon-Sanchez JM. Nasal continuous positive airway pressure with heliox in infants with acute bronchiolitis. Respir Med. 2006;100(8):1458-1462. (Prospective; 15 patients) 21. Martinon-Torres F, Rodriguez-Nunez A, Martinon-Sanchez JM. Nasal continuous positive airway pressure with heliox versus air oxygen in infants with acute bronchiolitis: a crossover study. Pediatrics. 2008;121(5):e1190-1195. (Prospective; 12 patients) Bilavsky E, Shouval DS, Yarden-Bilavsky H, et al. A prospective study of the risk for serious bacterial infections in hospitalized febrile infants with or without bronchiolitis. Pediatr Infect Dis J. 2008;27(3):269-270. (Prospective; 448 patients) 22. Scottish Intercollegiate Guidelines Network. 91. Bronchiolitis in children. A national clinical guideline. November 2006. http://www.sign.ac.uk/guidelines/fulltext/91/index.html. Accessed February 1, 2010. (Clinical guideline) 10. Luginbuhl LM, Newman TB, Pantell RH, Finch MA, Wasserman RC. Office-based treatment and outcomes for febrile infants with clinically diagnosed bronchiolitis. Pediatrics. 2008;122(5):947-954. (Prospective; 3066 patients) 23. Bronchiolitis Guideline Team, Cincinnati Children's Hospital Medical Center: Evidence-based clinical practice guideline for medical management of bronchiolitis in infants 1 year of age or less presenting with a first time episode, http://www.cincinnatichildrens.org/svc/alpha/h/health-policy/ev-based/bronchiolitis.htm. Guideline 1, pages 1-13, August 15, 2005. (Clinical guideline) 11. Purcell K, Fergie J. Lack of usefulness of an abnormal white blood cell count for predicting a concurrent serious bacterial infection in infants and young children hospitalized with respiratory syncytial virus lower respiratory tract infection. Pediatr Infect Disease J. 2007;26(4):311-315. (Retrospective; 672 patients) 12. Gadomski AM, Bhasale AL. Bronchodilators for bronchiolitis. Cochrane Database Syst Rev. 2006;3:CD001266. (Systematic review) EM Practice Guidelines Update © 2010 11 ebmedicine.net • April 2010 | print | SUBSCRIBE | WEBSITE Current Guidelines For Diagnosis And Management of Bronchiolitis In The ED Physician CME information for EM Practice Guidelines Update To take the CME test, visit: www.ebmedicine.net/cme To write a letter to the editor, email Reuben Strayer, MD, Editor-In-Chief, at: strayermd@ebmedicine.net Date of Original Release: April 1, 2010. Date of most recent review: February 1, 2010. Termination date: April 1, 2013. EM Practice Guidelines Update (ISSN Online: 1949-8314) is published monthly Accreditation: EB Medicine is accredited by the ACCME to provide continuing medical education for physicians. (12 times per year) by EB Practice, LLC d.b.a. EB Medicine, 5550 Triangle Parkway, Suite 150; Norcross, GA 30092 Credit Designation: EB Medicine designates this educational activity for a maximum of 12 AMA PRA Category 1 Credits™ per year. Physicians should only claim credit commensurate with the extent of their participation in the activity. Telephone: 1-800-249-5770 or 1-678-366-7933; Fax: 1-770-500-1316 Email: ebm@ebmedicine.net Website: www.ebmedicine.net Needs Assessment: The need for this educational activity was determined by a survey of practicing emergency physicians and the editorial board of this publication; knowledge and competency surveys; and evaluation of prior activities for emergency physicians. CEO: Robert Williford President and Publisher: Stephanie Ivy Target Audience: This enduring material is designed for emergency medicine physicians, physician assistants, nurse practitioners, and residents. Associate Editor: Dorothy Whisenhunt Associate Editor and CME Director: Jennifer Pai Goals: Upon completion of this article, you should be able to: (1) demonstrate medical decision-making based on the strongest clinical evidence; (2) cost-effectively diagnose and treat the most critical ED presentations; and (3) describe the most common medicolegal pitfalls for each topic covered. Director of Member Services: Liz Alvarez Marketing and Customer Service Coordinator: Robin Williford Objectives: Upon completion of this article, you should be able to (1) define the clinical features of bronchiolitis, and identify patients who are at higher risk for severe disease; (2) summarize the evidence regarding the infrequent need for diagnostic testing in infants with clinical bronchiolitis; (3) identify treatment modalities that have proven helpful or ineffective in infants with bronchiolitis. 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Adobe Reader is required to view the PDFs of the archived articles. Adobe Reader is available as a free download at www.adobe.com. practice, or other entity. Additional Policies: For additional policies, including our statement of conflict of interest, source of funding, statement of informed consent, and statement of human and animal rights, visit: http://www.ebmedicine.net/policies EM Practice Guidelines Update © 2010 12 ebmedicine.net • April 2010 | print | SUBSCRIBE| WEBSitE | WEBSITE | print | SUBSCriBE Current Guidelines For Diagnosis Management of Bronchiolitis The ED Benign Paroxysmal Positional Vertigo And AcuteAnd Otitis Externa In The ED: Current In Guidelines Want to receive EM Practice Guidelines Update free? Subscribe to Emergency Medicine Practice and you’ll receive EM Practice Guidelines Update at no additional charge! Plus, you receive all the benefits of Emergency Medicine Practice: • A chief-complaint focus: Every issue starts with a patient complaint — just like your daily practice. You’re guided step-by-step in reaching the diagnosis — often the most challenging part of your job. • An evidence-based medicine approach: The degree of acceptance and scientific validity of each recommendation is assessed based on strength of evidence. Years Evidence-B ased Appro ach To Diagnos is Of Aneurys And Management ma Hemorrhag l Subarachnoid e In The Em ergency Departmen t Improving Patien t Care July 2009 Authors Volume 11, Lisa E. Thoma Number 7 s, MD Department of Emerge Hospital & ncy Massachusetts Medicine, Brigham & Women Jonathan General Hospita ’s Edlow, MD l, Boston, Vice Chair, MA Department Beth Israel of Emerge Deaconess ncy Medicine, Medical Center;Medicine Harvard Medica Associate l School, Joshua N. Boston, MA Professor of Goldstein, Instructor MD, PhD, in Surgery FAAEM (Emergency School, Departm Medicine), General Hospita ent of Emergency Harvard Medica Medicine, l, Boston, Massachusetts l MA Peer Review ers You walk into a crowded Your first patien evening shift in the emerg her head, compl t is a middle-aged woman lying ency department (ED). with her hands about a subara aining of the “wors t heada noncontrast chnoid hemorrhage (SAH che of her life.” You clutching head compu are worried E. Bradshaw says that her ted tomography ). You treat her pain Bunney, Associate MD, FACEP and order headache is Professor, (CT), which a kids. Does Residency Emergency is negative. Director, Departm Medicine, she really needbetter and that she needs She now Chicago, University ent of to stay for IL to go home of Illinois at Chicago an LP, which a lumbar puncture to pick up Neal Little, , (LP)? her is also negati need any additi MD, FACEP Adjunct Clinical ve. Can she She eventually agrees onal worku Assistant Medicine, go home now? p? Professor, While you University Department are Does she of Michiga thinking about of Emerge n Medical migraine arrive CME Objecti ncy School, Ann this, ves Arbor, MI lasted 12 hours s complaining of sudde another patient with Upon comple a tion histor n-ons of this article, y of et, severe heada 1. Describ SAH? After . Is this headache her you should e the che be able to: usual migra further histor discuss the classic presentation ine or could that has and you obtain of an SAH wide spectru y is obtain 2. Describ as m of present well as this ed, e the diagnos ation. some clearin a CT, which is norma you are concerned about be an tic approac having an h to a patient SAH. g l. 3. Identify suspected it may have of red blood cells (RBC You perform an LP, which an SAH the major of limitations been a traum modalities. s) from tube shows in interpre pondering ting the diagnos 1 to tube 4, 4. Discuss this, the lab atic tap, but how can general principle tic you be sure? and you think the ED. calls to say diagnosis of s of acute SAH manage there is xanth Just as you 5. Identify SAH. After ment in common are ochromia. should you calling for pitfalls in You neurosurgic do in the ED the diagnos is of SAH. al consultation make the to treat this Date of original patient? , what else release: July Date of most 1, 2009 recent Editor-in-Ch Andy Jagoda, ief MD, FACEP Professor and Chair, Department of Emergen cy Sinai School Medicine, Mount of Medicine Director, Mount ; Medical Sinai Hospital, York, NY New Editorial Chattano oga, TN Michael A. Gibbs, Chief, Departm MD, FACEP ent of Emergen Medicine, cy Maine Medical Portland, Center, ME Charles V. Pollack, Jr., FACEP MA, MD, Chairman, Department Emergency of Medicine Termination review: April 27, 2009 date: July 1, 2012 Medium: Prior to beginni Print and online ng this activity, see “Physic Information” ian CME on page 27. University Medical Center, Nashville , TN Internationa Steven A. , Pennsylv Hospital, Godwin, Universit ania Jenny Walker, Board l Editors MD, FACEP MD, MPH, Health System, y of Pennsylv Assistant William J. Assistant MSW Professor ania Peter Camero Brady, MD Philadelp Professo and Emergen Medicine hia, PA n, MD Professor Family Medicine r; Division Chief, Residenc cy Michael S. Radeos, Chair, Emergen of y Director, University , Departm and MedicineEmergency Medicine of Commun cy Medicine MD, MPH Assistant of Florida ent Monash Universit ity and Preventiv , Professor HSC, Jacksonv Emergency Vice Chair of Medicine, of Emergen y; Alfred Hospital, Medicine, ille, FL Melbourn e Medicine, Mount Sinai cy Weill e, Australia of Virginia University Center, New Medical Gregory Cornell UniversitMedical College School of L. Henry, York, NY Amin Antoine of Medicine, Charlotte y, New York, MD, FACEP CEO, Medical sville, VA Kazzi, MD, Ron M. Walls, NY. Robert L. Associate FAAEM Rogers, MD Assessment, Practice Risk Professor Peter DeBlieux Professo FAAEM, FACP MD, FACEP, and Vice Chair, Departm r and Chair, , MD of Emergen Inc.; Clinical Professo Professo ent of Emergen of Emergen Department Assistant cy Medicine, r of cy Professor cy of Michigan Medicine, Universit r Universit LSU Health Clinical Medicine and Women’s Medicine, Brigham of Medicine Irvine; American y of California , Ann Arbor, y , , The UniversitEmergency Hospital,Harvard , MI Director of Science Center; Medical School, University, John M. Howell, Maryland Lebanon y of Emergen Beirut, School of Boston, cy Medicine Services, MD, Medicine FACEP Clinical Professo Baltimore, MA Scott Weingar University , Hugo Peralta, MD Hospital, Orleans, r of Emergen t, MD Medicine, New MD LA Assistant Alfred Sacchet George Washing cy Chair of Emergen Professo University, ti, MD, FACEP Wyatt W. r of Emergen Medicine ton Assistant Washington, Hospital Italiano, cy Services, Decker, MD , Elmhurs cy Clinical of Academic DC;Director t Hospital Chair and Center, Mount Professo Buenos Aires, Department Argentina Affairs, Best Associate Sinai School Inc, Inova of Emergen r, Professor Emergency Medicine Thomas Jefferson Fairfax Hospital,Practices, cy Medicine of of , New York, Medicine, Maarten Church, VA , College of Mayo Clinic Falls NY University, Simons, Philadelp Research Medicine, MD, PhD hia, PA Emergency Rocheste Editors Medicine Francis M. r, MN Keith A. Marill, Scott Silvers, Director, OLVG Residenc MD Fesmire Assistant Nicholas y MD, FACEP Director, Heart-St , MD, FACEP Hospital, Medical Director, Professor, Genes, Amsterdam, Department Emergency Chief Resident MD, PhD The Netherla Erlanger Medical roke Center, Department Emergency of Medicine, nds , of Mount General Hospital, Medicine, Massachusetts Center; Assistan Emergency Sinai Professor, Jacksonv Mayo Clinic, Medicine UT College t ille, FL School, Boston, Harvard Medical Residenc New York, of Medicine y, NY MA , Corey M. Slovis, MD, Lisa Jacobso Accreditation: FACP, FACEP Professor n, MD This activity Chief Resident and Chair, (ACCME) has been of Emergen Department through the of Medicine , Mount Sinai School cy Medicine Thomas, sponsorship planned and impleme , Emergen Dr. , Vanderb of EB Medicin nted Residenc ilt discussed Edlow, Dr. Bunney, y, New York, cy Medicine e. 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