《英文msh詞典》Upper Extremity Myoclonus
[入口詞] Upper Extremity Myoclonus
[主題詞] Myoclonus
[英文釋義] Involuntary shock-like contractions,irregular in rhythm and amplitude,followed by relaxation,of a muscle or a group of muscles. This condition may be a feature of some CENTRAL NERVOUS SYSTEMS DISEASES (e.g.,EPILEPSY,MYOCLONIC). Nocturnal myoclonus may represent a normal physiologic event or occur as the principal feature of the NOCTURNAL MYOCLONUS SYNDROME. (From Adams et al.,Principles of Neurology,6th ed,pp102-3).