neurologic disorders
Myoclonus
Key Points
Myoclonus is a brief, shocklike muscle contraction that can vary in severity and distribution. Myoclonus can be physiologic (eg, hiccuping, sleep-related muscle contractions) or secondary to various brain disorders, systemic disorders, or drugs. If a metabolic disturbance is the cause, correct it, and when necessary, give drugs (eg,clonazepam, valproate,levetiracetam) to relieve symptoms. 