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Acta Neurol Scand. 1983 Apr;67(4):210-7.

Evaluation of some coagulation parameters in cerebral ischemia.


In order to investigate some aspects of blood coagulation and of platelet function in cerebral ischemia, 18 healthy subjects, 24 patients with previous cerebral infarction and 12 patients with transient ischemic attacks were studied. All patients were in a non-active state of the illness. In all subjects, platelet count, prothrombin time, activated partial thromboplastin time and determination of the fibrinogen concentration were performed as routine. All subjects were tested for platelet adhesiveness, circulating platelet aggregates, factor VIII coagulant (VIII C), factor VIII-related von Willebrand factor (VII RWF), factor VIII-related antigen (VII RAg), antithrombin III (AT III) concentration and activity and euglobulin clot lysis time. No significant difference between patients and controls was found in routine tests, platelet function, AT III concentration or activity. Plasma levels of VIII C, VIII RWF, VIII RAg were significantly increased in both patient groups. The VIII RAg/VIII C ratio was significantly increased only in patients with previous cerebral infarction. Euglobulin clot lysis time was significantly increased in both patient groups.

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