Myasthenic syndromes.

A Case Report of Congenital Myasthenia Gravis Presenting With Respiratory Distress

Congenital Myasthenic Syndromes (CMS) are rare inherited disorders characterized by dysfunction of neuromuscular transmission at the neuromuscular junction. Most patients with congenital myasthenic syndromes present in the infancy. Major symptoms of affected individuals include weakness and fatigue during the first years of life. Patients may show hypotonia, facial weakness, swallowing difficul...

Congenital myasthenic syndromes.

PURPOSE OF REVIEW Congenital myasthenic syndromes are a heterogeneous group of diseases caused by genetic defects affecting neuromuscular transmission. In this article, a strategy that leads to the diagnosis of congenital myasthenic syndromes is presented, and recent advances in the clinical, genetic and molecular aspects of congenital myasthenic syndrome are outlined. RECENT FINDINGS Besides...

Congenital myasthenic syndromes.

Congenital myasthenic syndromes are a rare group of heterogeneous disorders affecting neuromuscular transmission. Recent identification and in-vitro functional analysis of some of the genetic mutations that cause these disorders correlates with previous electrophysiological, biochemical, pathological and therapeutic studies, and has advanced our understanding of neuromuscular transmission.

Morphologic and immunopathologic findings in myasthenia gravis and in congenital myasthenic syndromes.

Overwhelming evidence now supports Simpson's concept, originally proposed in 1960, that acquired myasthenia gravis (MG) is an autoimmune disease in which antibodies are directed against the nicotine postsynaptic acetylcholine receptor (AChR).1 An autoimmune pathogenesis of acquired MG implies that those myasthenic syndromes which occur in a congenital and familial setting may have a different, ...

Congenital myasthenic syndromes and myasthenia gravis are challenging diagnoses in neurological practice.

Genetic heterogeneity and pathophysiological mechanisms in congenital myasthenic syndromes.

Congenital myasthenic syndromes (CMS) are a rare heterogeneous group of inherited neuromuscular disorders associated with distinctive clinical, electrophysiological, ultrastructural and genetic abnormalities. These genetic defects either impair neuromuscular transmission directly or result in secondary impairments, which eventually compromise the safety margin of neuromuscular transmission. In ...