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Stroke, Vol 20, 1500-1503, Copyright © 1989 by American Heart Association

ARTICLES

Intracerebral hemorrhage in stroke patients anticoagulated with heparin

VL Babikian, CS Kase, MS Pessin, B Norrving and PB Gorelick
Department of Neurology, Boston University School of Medicine, MA 02130.

To characterize the clinical features of patients with acute cerebral infarction who sustained intracerebral hemorrhage related to heparin anticoagulation, we describe 10 patients and review reports of 16 cases. Cardiac-source embolism was identified in seven (70%) of the 10 patients and consisted of atrial fibrillation in six of the seven. The middle cerebral artery territory was affected in nine patients (90%), with moderate-sized or large infarcts by clinical and computed tomographic criteria. The interval between stroke onset and intracerebral hemorrhage was less than 72 hours in 80% of the patients. Intracerebral hemorrhage occurred less than or equal to 24 hours after the time heparin was started in 80% of the patients. The activated partial thromboplastin time closest to the time of intracerebral hemorrhage was greater than 2 x control in seven patients. Our findings in the 10 patients are similar to those of the 16 cases previously reported and suggest that heparin-related intracerebral hemorrhage occurs early after stroke onset, usually with moderate-sized or large infarcts, and with excessive anticoagulation in some patients.

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