If atrial fibrillation, after aortic valve replacement (in female 79), how is this usually corrected? bisoprolol, metoprolol , sotalol already tried.

Cardioversion?: Initially with rate control and anti-coagulation. If the atrial fibrillation is causing you symptoms, then a controlled and timed shock to the heart, called cardioversion, can be administrated tito regulate your heart. This is an outpatient procedure. Discuss with your doctor.

Drugs: Amiodarone electrical cardio version anticoagulation and time and spontaneous conversion, or electrical conversion. If never before the surgery, good chance of reversal.