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The optimal evaluation and management of patients with atrial fibrillation who suffer an acute ischemic stroke remains controversial.Medical records of 171 consecutive patients with atrial fibrillation and acute stroke at 6 U.S.university hospitals were reviewed.Data collected included the use of antithrombotic therapy,brain and cardiac imaging,bleeding complications, stroke risk factors and contraindications to anticoagulation.Mean age was 75.4 years.Cardiovascular risk factors associated with increased stroke risk were present in 87%;35%had at least one contraindication to anticoagulation.Half of the patients with stroke risk factors and no contraindications to anticoagulation were not receiving any antithrombic therapy at the time of admission.Of the 22 patients who were treated with warfarin,and had INR values on admission,16 had levels of<2.0;only six had INR values between 2.0 and 3.0.Transthoracic echocardiography was performed in 107 patients(63%);intracardiac thrombi were visualized in only 5%.Initial brain imaging revealed hemorrhagic transformation in nine. Heparin was used in 93 patients(54%),usually within 48 hours of stroke onset.Patients who received delayed heparin typically did not have repeat brain imaging prior to starting heparin.One patient had a delayed symptomatic cerebral hemorrhage.Of the survivors,47%were discharged and treated with warfarin(or warfarin plus aspirin),28%with ASA,7%with other antithrombotic therapies and 18%with no antithrombotic therapy. Antithrombotic therapy was underutilized and inadequately monitored in atrial fibrillation patients prior to stroke onset.After hospital admission,a wide range of diagnostic and management strategies,which often did not follow currently recommendations,were employed. |
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anticoagulant,treatment in CVD
atrial fibrillation
cerebrovascular accident
cerebrovascular accident,acute management of
cerebrovascular accident,prevention of
cerebrovascular accident,work up for
controversies in neurology
coumarin
echocardiogram
heparin
neurologic practice
treatment of neurologic disorder
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