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Stroke, Vol 20, 1730-1732, Copyright © 1989 by American Heart Association

ARTICLES

Etiology of stroke in patients with Wernicke's aphasia

LE Knepper, J Biller, D Tranel, HP Adams Jr and EE Marsh 3d
Division of Cerebrovascular Disease, University of Iowa College of Medicine, Iowa City.

We reviewed 49 patients with Wernicke's aphasia resulting from a stroke. Their aphasia was classified on the basis of comprehensive neuropsychological testing. Wernicke's aphasia was more common in older patients and in men. Cerebral infarction occurred in 38 patients (78%) and intracerebral hemorrhage in seven (14%); the remaining four patients (8%) developed aphasia after surgery for aneurysmal subarachnoid hemorrhage. Embolic events were the most common etiology of Wernicke's aphasia in the 38 patients with cerebral infarction, with cardiac emboli in 40% and large-vessel atheroemboli from a carotid source in 16%. In patients with Wernicke's aphasia secondary to infarction, an embolic source should be sought. Patients with Wernicke's aphasia should have computed tomography to exclude intracerebral hemorrhage before institution of anticoagulant therapy.

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