title: Juvenile distal spinal muscular atrophy of upper extremities in Chinese males: a single fibre electromyographic study of arms and legs.
abstract: Single fibre electromyography (SFEMG) was performed on six young Chinese males with distal spinal muscular atrophy of the upper extremities. Abnormal SFEMG findings of increased fibre density, jitter and blocking were recorded over both arms and legs in all patients, suggesting a more generalised disturbance than would appear clinically.
authors.affiliation: Department of Medicine, Kwong Wah Hospital, Hong Kong.
authors.forename: Y W
authors.initials: YW
authors.lastname: Chan
authors.forename: R
authors.initials: R
authors.lastname: Kay
authors.forename: M S
authors.initials: MS
authors.lastname: Schwartz
mesh_terms: D000293:Adolescent; D000328:Adult; D004576:Electromyography; D006723:Hong Kong; D006801:Humans; D008297:Male; D009046:Motor Neurons / Q000502:physiology*; D009132:Muscles / Q000294:innervation*; D009460:Neurologic Examination; D009469:Neuromuscular Junction / Q000503:physiopathology*; D014897:Spinal Muscular Atrophies of Childhood / Q000503:physiopathology*