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Congenital Muscular Dystrophies and Congenital Myopathies

Iannaccone, Susan T. MD, FAAN; Castro, Diana MD

doi: 10.1212/01.CON.0000440658.03557.f1
Review Articles

Purpose of Review: The purpose of this review is to provide information regarding the diagnosis and natural history of some very rare disorders: congenital muscular dystrophies and congenital myopathies. Patients with these conditions share characteristics such as early onset of weakness and severe hypotonia. Other organs such as the brain, eyes, and skin may be involved. Diagnosis depends largely on recognition of phenotype, muscle biopsy, and mutation analysis.

Recent Findings: More than 30 genes have been associated with these diseases, most of which have only been recognized in the past decade. Increasing availability of DNA analysis has been important in decreasing delay in diagnosis.

Summary: Patients with congenital muscular dystrophy or congenital myopathy are at high risk of complications including restrictive lung disease, orthopedic deformities, seizures, cardiomyopathy, and malignant hyperthermia. Life expectancy varies with the severity of complications. Having an accurate and specific diagnosis allows the neurologist to carry out anticipatory guidance and appropriate monitoring. New hope exists for experimental treatments for congenital muscular dystrophy and congenital myopathy as our understanding of pathogenesis evolves.

Address correspondence to Dr Diana Castro, 2350 Stemmons Freeway, Dallas, TX 75207, diana.castro@utsouthwestern.edu.

Relationship Disclosure: Dr Iannaccone has received research support from GlaxoSmithKline; Isis Pharmaceuticals, Inc; the NIH; and Santhera Pharmaceuticals. Dr Castro reports no disclosure.

Unlabeled Use of Products/Investigational Use Disclosure: Drs Iannaccone and Castro report no disclosures.

© 2013 American Academy of Neurology
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