Delayed Multiple Intracerebral Hemorrhage After Burr Hole Drainage of Chronic Subdural Hematoma During Failure of Warfarin Resumption in Atrial Fibrillation

Many elderly people take warfarin due to underlying disease. Warfarin is a risk factor for developing chronic subdural hematomas and other intracranial hematomas. Our patient was on chronic warfarin treatment for longstanding atrial fibrillation and underwent burr hole trephination due to chronic subdural hematoma. Multiple intracerebral hemorrhages developed 7 days after surgery without resumption of warfarin. Here, we report and review this rare case.