Unilateral Asterixis due to Subdural Hematoma

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Abstract
To the Editor.— Asterixis has been known to occur frequently in metabolic encephalopathy and has recently been reported in patients with focal brain lesions.1,2 We studied a patient with unilateral asterixis due to subdural hematoma. Report of a Case.— A 77-year-old woman complained of headaches that had started ten days before her hospitalization and had since worsened. She was confused and euphoric. No antecedent traumatic event was known. Neurological examination revealed slight distal paresis of the right upper limb without any sensory disturbance, in association with pronounced and persistent asterixis. The results of routine biological tests were normal. No renal insufficiency was discerned. The EEG showed diffuse slowing and left frontotemporal delta activity. The computed tomography scan without contrast enhancement, carried out a few hours after admission, located a large subdural hematoma on the left side. It exerted considerable pressure on the lateral ventricles, displacing them toward the right

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