Transient hemiballismus and subclavian steal syndrome. Case report.
Transient hemiballismus was observed in a 74-year-old man, displaying subclavian steal syndrome. Such a correlation has not been previously reported in the literature. In this case, transient hemiballismus seemed to depend on hemodynamic factors, but other mechanisms possibly explaining early recovery of the hyperkinesias are discussed. In particular, stress is laid upon the role of preexisting pathological changes of the central nervous system (diffuse cerebral atrophy) associated to the "releasing" lesion.
D000368:Aged; D001284:Atrophy; D001916:Brachial Artery / Q000000981:diagnostic imaging; D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging; D002540:Cerebral Cortex / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D006948:Hyperkinesis / Q000150:complications*; D008297:Male; D013349:Subclavian Steal Syndrome / Q000150:complications* / Q000000981:diagnostic imaging; D013787:Thalamic Nuclei / Q000473:pathology; D014057:Tomography, X-Ray Computed