Antithrombotic Therapy and Predilection for Cerebellar Hemorrhage

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<jats:p>Background: With the recent increase in the use of antithrombotic therapy, intracerebral hemorrhage (ICH) has been found to be a common complication. We determined whether the use of oral antithrombotic therapy and the patients’ preexisting comorbidities were predictive of cerebellar hemorrhage (CH; previously reported to be associated with anticoagulants) as compared to other ICH, and whether antithrombotic therapy affected the clinical severity of CH. Methods: A study of 327 consecutive patients hospitalized in our institute within 3 days after the onset of ICH, including 38 patients with a CH. Results: CH accounted for 12% of all ICH, 75% of which occurred in patients on warfarin therapy with an international normalized ratio (INR) for prothrombin time >2.5 (p < 0.0001), and 33% of which occurred in patients on ticlopidine therapy (p = 0.017). Warfarin therapy with an INR >2.5 and high blood glucose on admission were independently predictive of CH as compared to other ICH. In addition, previous ischemic stroke (p = 0.002) and heart diseases (p = 0.018) were more prevalent in patients with CH than in those with other ICH. The number of major arteriosclerotic comorbidities and risk factors was also independently predictive of CH risk. Conclusions: We confirmed that warfarin therapy with an INR >2.5 is associated with CH. Patients with CH frequently had arteriosclerotic comorbidities requiring antithrombotic therapy that can complicate their acute management.</jats:p>

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