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Cerebral hemorrhagic infarction visualized on CT,secondary to embolic stroke in an anticoagulated individual,is usually associated with clinically stable or improving neurologic signs;fear of transforming the hemorrhagic infarction into a hematoma,however,usually prompts cessation of anticoagulation until the blood has cleared on CT,despite the recognized risk of recurrent embolism during this non-anticoagulated period.We now report our experience with 12 patients with hemorrhagic infarction who remained anticoagulated.Eleven men and one woman,ages 33 to 77,developed hemorrhagic infarction while on heparin,warfarin,or both,for prevention of recurrent embolism.Patients were either continued on uninterrupted anticoagulation from stroke onset(n=6),or anticoagulation was withheld for several days and then resumed(n=4),or it was withheld for 5 and 14 days(n=2)after stroke onset and then continued uninterrupted despite the CT appearance of hemorrhagic infarction.Eleven patients had a definite cardioembolic source for stroke(atrial fibrillation,seven; ventricular thrombus,two;and ventricular dyskinesia,two).One patient had carotid occlusion with local intra-arterial embolism.Hemorrhagic infarcts varied in size and were located in the middle cerebral artery territory in 11 patients and posterior cerebral artery territory in one.All patients remained clinically stable or improved on anticoagulation.Serial CTs showed fading hemorrhagic areas.When the risk of recurrent embolism is high,anticoagulation may be safely used in some patients with hemorrhagic infarction. |
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anticoagulant,treatment
anticoagulant,treatment in CVD
CAT scan
CAT scan,abnormal
cerebral embolism
cerebral embolism,cardiac origin
cerebral infarction,hemorrhagic
embolism
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