After cardioversion, you will be monitored to make sure that you have a stable heart rhythm.
You will take an anticoagulant, such as warfarin, for at least a few weeks after your cardioversion. This medicine lowers your risk of a stroke.
Additional medicines to help prevent the return of heart rhythm problems (antiarrhythmics) also may be given before and after the procedure. Your risk of having atrial fibrillation again is greater if antiarrhythmics are not used after cardioversion.
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