HSAN Newsletter-1
Transcription
HSAN Newsletter-1
1st International HSAN Seminar –regarded as a success by all! On August 7, 2009, NYU Langone Medical Center and the Dysautonomia Center hosted the first International HSAN Seminar. The seminar’s mission was to provide informative sessions, establish support services for patients and families and spearhead efforts to get research moving ahead for the group of disorders known as hereditary sensory and autonomic neuropathies or HSAN’s. The HSANs comprise a very rare group of disorders that are widely dispersed geographically for which, heretofore, there was no recognized treatment center. Our experience with one of the HSANs (type 3 or FD) makes it logical for us to offer our diagnostic, treatment, and research expertise for these other related orphan diseases. Participants included families, physicians, researchers, therapists and social worker. There was global representation as families came from Europe (Amsterdam) as well as various parts of the United States. In fact there were 8 states represented. All participants agreed that the morning lecture sessions were informative and addressed some of the key issues common to all the HSAN’s and that there was plenty of time for Q & A. Over lunch doctors and families were able to network and share experiences. The afternoon ended with a comprehensive and enlightening session regarding enhancing services and increasing resources. Group Picture: Top Row (left to right): George Stingley, Luis Salazar, Daisy Stingley, Cindy Zahneis, Sam Saah, Vivien Saah, Ann Liristis, Sophia Liristis, Maria Liristis, Horacio Kaufmann, Felicia Axelrod, Lucy Norcliffe‐Kaufmann, Rohit Raman, Rahul Raman, Noel Salazar, Pat Gelfand, Philip Giarraffa, Kurt Gelfand, Tali Eisenmann. Seated (left to right): Juan Salazar, Susuan Salazar, Roberto Salazar, Melissa Chaikin‐Kahn, Anu Raman, JV Raman. (Missing are Dr. David Feldman and Mr. David Brenner) Comments from Families: Great conference, It was so nice to meet other children and parents going through the same things. It gives me hope for the future for Roberto. I am excited to see how HSAN's are being embraced and the hope for the future for all of these children/adults. Susan Salazar, Indiana I want to thank you and all of the professionals that participated in the seminar on Friday. I think it is wonderful that all of you took the time and effort to help spearhead efforts to get research, etc. moving ahead for the HSANs. And your promise of future help is a great step to get things going. Cindy Zahneis, Ohio Summary of the Presentations General Information about HSAN and Goals for the Future……………… Felicia B. Axelrod, MD Dr. Felicia Axelrod, Director of the Dysautonomia Center at NYU, welcomed the group and gave a brief overview of the HSAN disorders and outlined the goals of the Conference. She provided the present nomenclature and stressed how all the HSAN types (with the exception of type 1) appeared to be disorders of development so that the genetic error occurred early (prior to birth). Because each HSAN type was caused by a different genetic mutation, the process of development was probably disturbed at a different point in time resulting in slightly different problems. However, all had in common decreased pain perception and some degree of autonomic dysfunction. In addition some had central processing that affected learning and behavior. Dr. Axelrod stressed that it was important for all of the HSAN types to come together and organize and consolidate. The difficulties in accomplishing this goal were presented—the HSAN are considered rare disorders, the patient population is widely dispersed throughout the world and throughout the United States, they are poorly classified with many of them not even having a clear type assigned, and there are no easy diagnostic tests. As a result there is limited expertise in treating HSAN and there has not been focused research to find treatments or cure. Thus it was proposed that all of the HSAN types utilize the resources of the NYU Dysautonomia Center and partner with the Dysautonomia Foundation. The advantages would be that the HSAN disorders could utilize the resources of two organizations that have a well‐established record of success in combining clinical care with research and as a result have dramatically improved the survival of one HSAN—type 3 which is also known as familial dysautonomia or FD. For this HSAN survival and quality have already been dramatically improved and we are on the threshold of launching genetic therapy. This is what also should be accomplished for the other HSAN types by utilization of the NYU Dysautonomia Center staff, equipment, and expertise. Centralization of care for the HSAN has already started as the patients and families are learning that the Center is amenable to embracing all the HSANs. At present about 80% of the Center’s patient population consists of HSAN type 3 patients (FD) and 20 % (148 patients) are the “other HSAN types”. However it is anticipated that the number of patients with other HSAN types will increase and these proportions will start to shift. At the present time more than 50% of the “other HSAN’s” are comprised of type 4 and what we term type 2 (which does not have a specific gene mutation identified as yet). However a large group of HSAN patients continue to be unclassified and are grouped here as “Unknown”. At the NYU Dysautonomia Center a database has been started that will provide disease specific information on symptoms, natural history of disease and prognosis. Specific treatment needs are being identified and we are putting together a team of experts to deal with these issues. The Center will then be able to serve as a resource for patients, families and other physicians. However what we will need to continue success in this area will be for awareness of the Center to grow so that participation will increase and we will need to develop financial resources to fund research and that will have to come from private sources as well as from Foundations and the government (NIH). Page 2 Orthopedic Issues of the HSAN Patients……………… David Feldman, MD Dr. David Feldman, Chief of Pediatric Orthopedic Surgery, because of his extensive experience with multiple HSAN patients was able to provide an overview of orthopedic conditions that are commonly associated with the HSANs and focused on the physical expectations, some treatment options and special considerations as well as tips on how to avoid complications. He explained that there are mainly 5 types of orthopedic manifestations—Charcot arthropathy, fractures, joint dislocations, spinal dislocation (i.e. spondlolisthesis) and osteomyelitis. Some of these issues can occur as a result of unrecognized trauma and some as a result of the self‐injury due to decreased pain perception. Regarding physical expectations, Dr. Feldman indicated that it is unnatural for children to be confined to wheelchairs and that when possible they should be allowed to ambulate and even participate in non‐contact and low‐impact sports such as swimming and bicycling. However appropriate precautions should be taken. He indicated that braces were often needed to stabilize the ankle or the foot and might be indicated after fracture or surgery. The brace should be perfectly form fitting and should not be used as an alternative to surgery to reduce a fracture or attain alignment. However brace treatment often had to be individualized in terms of what type and extent of wear. Osteomylelitis is a potential hazard for the HSAN patient and finger tips and toes were the most difficult to treat. Antibiotics are always indicated and often surgical debridement is necessary. Most importantly there should be a high index of suspicion and treatment should be early! Dr. Feldman stressed that there were particular things to be considered as a means of avoiding complications. He advocated early intervention with an experienced occupational therapist to assist in increasing awareness regarding the importance of body positioning, as well as avoiding sitting on the floor as this often traumatizes or malpositions the joints (such as knees and hips). He also recommends treating problems early and completely, efficient use of good bracing and not mobilizing fractures too early. In conclusion, Dr. Feldman stated that HSANs should be treated with education and therapy in order to avoid undue force on joints and early surgical intervention if dislocation or Charcot joint is suspected. In these cased solid fixation and conservative post operative management is essential. Taking on the Challenge of Research… Lucy Norcliffe‐Kaufmann, PhD and Horacio Kaufmann, MD Dr. Horacio Kaufmann is the Director of Research at the NYU Dysautonomia Center and Dr. Lucy Norcliffe‐ Kaufmann has already started a significant research project focusing on the neurohormone perturbations in this population, which may lead to increasing our understanding of blood pressure control and behavior in this population and eventually an innovative means of treatment. Dr. Norcliffe‐Kaufmann led off in this presentation with a review of the HSANs and the specific mutations in HSAN type 4 and type 2 and how they cause sensory dysfunction. She then focused on helping the participants understand sensory dysfunction and the role of pain in protection, as well as in modulating drives and instincts and eventually in decision‐making and behavior. She stressed the importance of the role sensation has in conveying information through neuronal networks from the body to the brain and how this information is used to reach awareness, create emotional mood and make decisions that eventually affect behavior. Understanding the normal process then helped the audience appreciate what happens when this system does not function, i.e. when sensation in impaired. Not only does the individual lose protective ability and suffer repeated trauma and thermal injuries, but emotional development, self‐awareness, learning and social perception can also be affected. Dr. Norcliffe‐Kaufmann then explained the extensive role of the autonomic nervous system and how it controls multiple functions including blood pressure, heart rate, breathing, temperature, sweat production, gastrointestinal motility, bladder and bowel control, tear production and even sexual function. In some of the HSANs sweating function is increased and in others it is decreased. Normally sweating is increased when the brain appreciates an increase in core temperature or when there is emotional stress. It then sends a signal via the sympathetic system to the sweat glands to increase production. As a result sweat production would increase and heat would dissipate through the process of evaporation from the skin. Page 3 However, in HSAN type 4, because the sympathetic neurons are not present, this system does not function, and sweat production in impaired and the patient cannot cool properly. This puts the HSAN type 4 patient at risk for high fevers and even febrile convulsions. Dr. Norcliffe‐Kaufmann also explained that the autonomic nervous system is believed to have an important role in blood pressure control. Investigators at the Dysautonomia Center believe this is an area that needs further investigation in HSAN type 4 patients as it could affect posture and cerebral perfusion. Dr. Horacio Kaufmann stressed that the research goals of the Center included comprehensive studies of autonomic and sensory function in all the HSAN types. By combining treatment and clinical care with research, the Center staff would strive to perform translational research and to execute therapeutic trials of new agents. The work has started and there is already funding from the Dysautonomia Foundation Inc and the National Institutes for Health (NIH) for some pilot trials but that more support will eventually be required to enhance and expand research efforts. Advances Through Partnership………………………………. Mr. David Brenner Mr. David Brenner, Executive Director of the Dysautonomia Foundation Inc stated that improving the care for patients with rare diseases requires a special set of partnerships and the more rare the disease, the more valuable are the partnerships. He related the experience, and success, of the Foundation in changing the outcome of one HSAN—type 3 (aka Riley Day syndrome, familial dysautonomia or FD) and indicated that the Dysautonomia Foundation could also achieve advances for the other HSAN disorders. The Foundations’s goals are to provide support through fundraising and lobbying, As a result, since it’s formation in 1951, the Foundation established a treatment center in 1970, funded two endowed professorships, sponsored various research proposals that led to discovery of the FD gene, creation of a mouse model and development of various therapies with which has led to improved outcomes for the HSAN type 3 (FD) patient population. The key ingredients for a successful partnership are organization, involvement and support. The Dysautonomia Foundation would be an ideal partner and is willing to help centralize and organize the larger HSAN community. Sensational Sensory Integration: A means to modifying behavior & decreasing risk of injury….Melissa Chaikin‐Kahn, OTR/L Melissa Chaikin‐Kahn, an occupational therapist who specializes in sensory integration, is the Director is Sensory Kids in Greenwich CT. She has the opportunity to evaluate and treat HSAN type 4 patients and has identified some of their needs and has suggested remediation methods. She presented an overview of the concepts involved in sensory integration. Sensory integration is the ability to take in information from the surrounding environment, make sense of it, organize it, and use this information to interact with the environment in an appropriate and successful manner. As she explained, if there is a “glitch” in our ability to appropriately integrate the seven senses, simple acts become overwhelming and confusing. Ms. Chaikin‐Kahn explained that there were three broad categories of sensory processing disorders—modulation, discrimination and sensory motor based with the latter being the most basic type of dysfunction. In addition to the traditional 5 senses (tactile, visual, auditory, taste and smell) there is also the vestibular sense (located in the inner ear and controls balance and posture and gives spatial orientation) and the proprioceptive sense (located in muscles and joint receptors and provides body awareness and orients body part relationships). Using the concept of a “pyramid of learning”, she explained how proper Page 4 utilization of the 7 senses was necessary in order to achieve higher level skills. Thus sensory motor based disorders have dysfunction in the sensory systems that can cause in derangement of body awareness and impair postural adjustment resulting in a child bumping into objects and throwing themselves. It can also impede attention center functions, which leads to behavior problems and ultimately academic learning, which is at the top of this pyramid. Children with sensory motor based disorders have trouble learning new skills and require lots of repetition. They have difficulty transferring or Based on her testing of HSAN type 4 patients, Ms. Chaikin‐Kahn reported that their scores on generalizing, poor play skills and poor standardized tests (Short Sensory Profile) were 2 to 3 SD below in all areas of sensory processing. The coordination or they are considered major problems were in tests of motor and postural skills. There were also impairments in auditory clumsy. processing and auditory discrimination. As a result she noted seeking behaviors, frequent falls with problems in safety awareness, hyperactivity and inattention, over‐responsiveness to tactile and auditory stimuli, regulation concerns and self‐injurious behaviors. Ms. Chaikin‐Kahn indicated that sensory integration could benefit this population. It was not just a behavioral modification approach, it actually causes a change in the nervous system. She recommends a “bottom up approach” with a concentration on the sensory system and incorporating the therapies with auditory programs. This therapy can be provided in an intense program over a short period , which may be necessary since so many patients reside outside of the greater New York area. She can then work with local therapists and school programs in a consultatory role. Identifying Social Service needs and Facilitating Parental Networks...Philip Giarraffa MSW, MPH Philip Giarraffa, a social worker with the Dysautonomia Center, provided an overview of how social service supports aim to improve quality of life for patients affected with HSAN disorders. The challenge facing families affected Types of Social Service Supports by this rare group of disorders is how to • Educational advocacy address the lack of Barrier‐free learning environment knowledge that is often Climate‐controlled classrooms Utilization of health paraprofessionals seen from health care Transportation providers, insurance • Durable medical equipment companies, social service Braces agencies, and educators. Mobility equipment This barrier continues to Blood pressure machines impact quality of life for • Insurance advocacy HSAN’s because many Coverage for physician visits (particularly if clients are needed services and coming to NYC for evaluation and treatment). supports are withheld or Coverage for medical procedures (x‐rays, surgical) denied. The rarity of Therapeutic services (occupational, physical therapy) HSAN’s makes it imperative that we strive Page 5 to promote education of these disorders to all service providers. Mr. Giarraffa anticipates that future research initiatives will lead to new treatments resulting in the need for additional social service supports. As a result, the Dysautonomia Center must take a proactive approach in promoting education of HSAN disorders as well as the social service resources that aim to improve the quality of life for this patient population. Presently, Mr. Giarraffa continues to advocate and assist families affected with HSAN’s both nationally and internationally. Regardless of geographic location, families are encouraged to have their local providers and educators contact him if questions should arise concerning the necessity of social service supports. Until knowledge of HSAN’s increase, Mr. Giarraffa recommends targeting symptoms (osteomyelitis, poor circulation, gastrointestinal problems, etc) that are recognizable amongst insurance companies, health care and social service providers. This often serves as a mechanism for obtaining needed social services. Networking serves as social service resource in itself especially when dealing with a group of disorders that are rare. When dealing with relatively unknown disorders, families feel that their children are “falling through the cracks” and this can be extremely frustrating. However, the formation of a parent/patient‐oriented network will lend support to such frustration. Networks can be used as an informative foundation especially when families have questions in regards to medical procedures, orthopedic surgery, insurance coverage, supportive therapies, and additional social service supports. Networking can be comforting especially when you have contact with other families that can lend support to you during physically and emotionally challenging times. Talking with families that may have experienced similar situations can be invaluable. Please join the Dysautonomia Center in facilitating a network that aims to provide such support! Goals for the Future 1. Increase awareness of HSAN’s 2. Encourage centralization of care and resources 3. Encourage registration and comprehensive evaluations at the Center for all patients with HSAN’s. The NYU Dysautonomia Center NYU Langone Medical Center 530 First Avenue, Suite 9Q New York, NY 10016 Phone: 212-263-7225 Fax: 212-263-7041 DysautonomiaCenter@nyumc.org 4. Start to fundraise and support the Dysautonomia Foundation to foster clinical care, treatment and research projects. Dysautonomia Foundation, Inc. 315 West 39th Street, Suite 701 New York, NY 10018 Phone: 212-279-1066 Fax: 212-279-2066 www.famdys.org 5. Establish links with independent websites to the Dysautonomia Foundation and the Dysautonomia Center. 6. The Dysautonomia Center will develop research protocols and apply for NIH funding Page 6