Abstract
AbstractBackgroundCongenital muscular dystrophies (CMDs) are genetically and clinically heterogeneous inherited conditions. Onset is typically within the first year of life. Most CMDs are autosomal recessive, except for de novo dominant mutations in LMNA‐related muscular dystrophy and some collagen‐6‐associated disorders.ResultsCMD is characterized by progressive muscular weakness, hypotonia, multiple contractures with a variable degree, spinal stiffness, delay in motor milestones acquisition, and histologically dystrophic lesions. Also, some forms of CMD may feature structural and myelination abnormalities on brain magnetic resonance imaging, intellectual impairment, and structural abnormalities of the eye. Muscle biopsy specimens exhibit a dystrophic pattern, but the appearance is quite variable depending on the different stages and severity of the disorder. The prevalence of CMD is estimated to be one in 100 000 people. Over the last few years, with advances in molecular genetic diagnostics, knowledge about neuromuscular disorders, particularly CMDs, has increased dramatically. Thus, the incidence may be higher than originally thought.ConclusionThis article reviews the recent achievements related to the clinical, diagnostic, pathogenic, and therapeutic aspects of CMDs.
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