Asterixis
Evidence-based neurology checklist on asterixis: Clinical features This is a form of negative myoclonus It manifests as irregular myoclonic lapses of posture It involves muscles that have been tonically active Hemiataxia and hypesthesia develop with thalamic lesions Vascular causes Drug-induced…
Clinical features
- This is a form of negative myoclonus
- It manifests as irregular myoclonic lapses of posture
- It involves muscles that have been tonically active
- Hemiataxia and hypesthesia develop with thalamic lesions
Vascular causes
Drug-induced causes
Other causes
Electromyogram (EMG)
References
- Young RR, Shahani BT. Asterixis: one type of negative myoclonus. Adv Neurol 1986; 43:137-156.
- Tatu L, Moulin T, Martin V, Monnier G, Rumbach L. Unilateral pure thalamic asterixis: clinical, electromyographic, and topographic patterns. Neurology 2000; 54:2339-2342.
- Río J, Montalbán J, Pujadas F, Alvarez-Sabín J, Rovira A, Codina A. Asterixis associated with anatomic cerebral lesions: a study of 45 cases. Acta Neurol Scand 1995; 91:377-381.
- Stell R, Davis S, Carroll WM. Unilateral asterixis due to a lesion of the ventrolateral thalamus. JNNP 1994; 57:878-880.
- Siniscalchi A, Gallelli L, Di Benedetto O, De Sarro G. Asterixis as a presentation of cerebellar ischemic stroke. West J Emerg Med 2012; 13:507-508.
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