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In our small study population,hemorrhagic venous infarction was common (three of four patients)among patients with dural sinus thrombosis and activated protein C resistance.Four of five patients with dural sinus thrombosis had positive tests for activated protein C resistance.This finding,in conjunction with data from other studies,suggests that patients with dural sinus thrombosis may need to be studied for the presence of activated protein C resistance.A positive finding for activated protein C resistance can be important not only in helping to explain the cause of thrombosis in affected individuals but also in identifying families at risk for thrombosis. |
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