Journal of Pediatric Rehabilitation Medicine - Volume 3, issue 1
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The Journal of Pediatric Rehabilitation Medicine (JPRM): An Interdisciplinary Approach is designed to parallel the multidisciplinary teams caring for children, adolescents and adults with childhood-onset physical disabilities and complex care needs worldwide. Published quarterly, topics include, and are not limited to, cerebral palsy, traumatic brain injury, spinal cord injury, spina bifida, limb deficiency, muscular dystrophy, stroke, cancer, developmental delays, and rare disorders. Furthermore, the journal welcomes papers dedicated to pediatric rehabilitation from a global health perspective.
The aim of JPRM is to engage a diverse group of international experts with the goal of providing readers with comprehensive information regarding children and adolescents requiring rehabilitation. JPRM brings together specialists from medicine, nursing, psychology, social work, nutrition, child life, family centered care, and occupational, physical, and speech therapy. For manuscript submissions, authorship involving at least two different specialties is encouraged, although not required, to facilitate a transdisciplinary and collaborative approach. Manuscripts are blinded and peer reviewed including biostatistical analysis. Authors are invited to submit original research, systematic and scoping reviews, guidelines, protocols, care pathways, case reports, book reviews, commentaries, editorials, and dates for future conferences.
Abstract: An Erratum for this article can be found here: http://iospress.metapress.com/content/e40m3u78gh17q441/?p=8c94370d4f2a48aa92df3da4183b6906&pi=12 Enzyme replacement therapy has been successful in alleviating morbidity and improving endurance in Mucopolysaccharidosis (MPS) type I, II, and VI, however little attention has been paid to the effects on bone mineralization. Brief case reports in MPS type III and IV suggest that bone mineral density (BMD) is diminished, but did not account for patient size. In this report, BMD was evaluated by quantitative computed…tomography and by dual-energy x-ray absorptiometry (DXA) in separate studies involving 10~patients with MPS type VI (7 Female; 7.0 to 21.0 y) and 4~male patients with MPS II (8.1 to 35.5 y). Vitamin D intake met the current RDA (200 IU) for most, though 25-OH vitamin D was insufficient (< 30 ng/mL) in 87.5% of patients tested. Ht Z-score was low −5.8 ± 3.6, with height deficits greatest in MPS VI. Spine and whole body BMD Z-scores by DXA were considered normal for chronological age in all MPS II, and after correction for Ht Z-score, in all but one subject with MPS VI. These results suggest that vitamin D insufficiency is quite common in MPS. BMD by DXA is within normal range for most, particularly after correction for short stature. A review of bone health assessment is provided as well as a discussion of these results.
Keywords: DXA, Bone mineral density, low bone mass, vitamin D, MPS II, MPS VI
Abstract: Short stature is characteristic of patients with mucopolysaccharidosis (MPS) diseases. For children with skeletal dysplasias, such as MPS, it is important to know the natural history of growth. An understanding of the natural growth pattern in each MPS disease provides a measurement to which treatments can be compared, as well as data which can help families and providers make individualized decisions about growth promoting treatments. Multiple advancements have been made in the treatment of MPS with…both hematopoietic cell transplantation (HCT) and enzyme replacement therapy (ERT). The long term benefit of these treatments on growth is unknown. This article will review the published data on growth in children with MPS, and describe preliminary data on the use of human growth hormone (hGH) in children with MPS.
Abstract: The mucopolysaccharidoses (MPS) are a group of lysosomal storage disorders characterized by a wide variation in symptoms and progression rates. Each of the MPS types is caused by a deficiency in one of the enzymes involved in the catabolic pathway of glycosaminoglycans. MPS are usually suspected on the basis of the concomitant presence of several typical features of the disease, such as short stature, coarse facial features, loss of hearing, bone deformities, joint stiffness, organomegaly, respiratory…and cardiovascular complications, and, in some cases, developmental delay. Very reduced or absent enzyme activity is required to confirm an MPS diagnosis. In the past, treatment of MPS was limited to the management of individual symptoms of the diseases. Currently, specific therapies such as hematopoietic stem cell transplantation and enzyme replacement therapy have improved the outlook for many MPS patients. To monitor disease progression and the impact of therapy in these patients, there is need for a validated scoring system for evaluating disease severity in MPS. A scoring system should take into account all aspects of MPS, particularly quality of life and functioning of arms, hands and legs and related mobility, endurance, self care and social functioning. This paper discusses several of the available scoring systems for bone/skeletal disorders and their potential usefulness in patients with MPS.
Keywords: Diagnosis, glycosaminoglycan, mucopolysaccharidoses, severity of illness index, treatment
Abstract: With advances in the treatment of the mucopolysaccharidosis (MPS) disorders, musculoskeletal problems are increasingly becoming a focus of care for these patients. This review discusses the current understanding of the pathophysiology of musculoskeletal disease in MPS and its orthopedic management. Deformities of the spine, hips and extremities are common and often functionally limiting. Carpal tunnel syndrome and flexor tendon triggering are common. Surgical intervention is often required to optimize long-term function.
Abstract: The mucopolysaccharidoses (MPS) are a common cause of carpal tunnel syndrome (CTS) in children and adolescents. As the MPS diseases are progressive in nature, it is essential that CTS in these children is readily diagnosed and treated, before damage to the median nerve becomes irreversible. Currently, no standards for diagnosing and treating CTS associated with MPS exist. Proper diagnosis of CTS generally involves the assessment of clinical signs and symptoms, in combination with nerve conduction studies.…As the clinical signs and symptoms of CTS described for adults are often absent in children with MPS, early diagnosis of CTS in these children requires recognition of subtle findings such as decreased sweating, nocturnal waking, gnawing of hands, and manual clumsiness. Sensory tests could also be useful for detecting early CTS when the integrity of the nerve is still relatively intact. Nerve conduction velocities, which are the gold standard for diagnosing CTS, can be difficult to perform in patients with MPS and should be adapted to the patients' clinical characteristics such as their abnormally small hands and young age. Ongoing monitoring for CTS is indicated for all MPS patients, including those treated with hematopoietic stem cell transplantation or enzyme replacement therapy.
Abstract: Mucopolysaccharidosis (MPS) VI is an inheritable lysosomal storage disorder that is often associated with severe orthopedic problems such as hip dysplasia, spinal deformities, and deformities in the skull, knees and hands. We describe the progression and management of three MPS VI cases with focus on their orthopedic problems.
Abstract: An Erratum for this article can be found here: http://iospress.metapress.com/content/e16437020701m0u5/?p=df8dd6709cf44367a0c0e5d917aaeddf&pi=11 We describe the cases of two adult sisters recently diagnosed with the attenuated form of mucopolysaccharidosis VI (MPS VI, Maroteaux-Lamy syndrome). MPS VI is a rare, clinically heterogeneous lysosomal storage disorder that is characterized by a deficiency in the glycosaminoglycan-degrading enzyme arylsulfatase B. Both cases had been misdiagnosed for over 30 years despite the presence of several characteristics of the disease,…including short stature (mild), coarse facial features, skeletal dysmorphisms, carpal tunnel syndrome, heart valve disease, and spinal cord compression, which together are suggestive of a lysosomal storage disease. Awareness about the clinical features of MPS VI should be communicated amongst treating neurologists, rheumatologists and other specialists who are involved in the healthcare decisions of these patients with presenting symptoms, so they can refer them to specialized centers for proper diagnosis and treatment.
Keywords: Case reports, diagnosis, mucopolysaccharidosis VI, slowly progressive, adult