Effect of Ischemic Preconditioning on Atrial Fibrillation After Electrocardioversion

Remote ischemic preconditioning through inflation of a blood pressure cuff to pressure values \> 200mmHg for 5 minutes followed by 5 minutes of reperfusion (3 times each) before electrocardioversion Electrical cardioversion for atrial fibrillation (100, 150, 200 Joule)

Inflation of a blood pressure cuff to pressure values \~ 10mmHg for 5 minutes followed by 5 minutes of reperfusion (3 times each) before electrocardioversion