Mioclonii negative post infarct talamic bilateral | [Negative myoclonus after bilateral thalamic infarct]

Abstract

Myoclonus is a rapid, involuntary, shock-like movement, rhythmical or irregular. From an etiological point of view, myoclonus can be physiological, essential, epileptic, symptomatic (secondary), or psychogenic. Symptomatic (secondary) myoclonus can have a wide range of causes such as degenerative disease, basal ganglia lesions, focal cerebral lesions (vascular, tumoral, inflammatory, or traumatic), hypoxic encephalopathies, infectious, toxic, autoimmune, paraneoplastic, or metabolic. Myoclonus can be either positive if it is the result of a sudden muscle contraction or negative when the ongoing activity of a muscle or group of muscles ceases abruptly. The aim of the present article is to present a case of negative myoclonus following a bilateral thalamic ischemic stroke with subsequent hemorrhagic transformation due to an atherothrombotic occlusion of the Percheron artery.