Evaluation of acute cerebral ischemia for anticoagulant therapy

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Abstract
Of 217 patients with clinical diagnosis of acute stroke 23% had nonischemic lesions diagnosed by computed tomography (CT) or lumbar puncture (LP). CT demonstrated all 37 cases of intracerebral hemorrhagic lesions; 9 were detected by LP. CT failed to demonstrate 8 of 17 cases of subarachnoid hemorrhage, but only 1 of these lacked headache or stiff neck. In 7 of 342 patients who were treated with anticoagulants after LP, spinal hematoma followed LP (5 with paraparesis). CT evaluation reduced the incidence of fatal cerebral hemorrhage during anticoagulant therapy of acute stroke. However, even if patients were evaluated with both CT and LP, the incidence of fatal cerebral hemorrhage resulting from intravenous anticoagulant therapy was 2.4%.