Amiodarone versus digoxin and metoprolol combination for the prevention of postcoronary bypass atrial fibrillation

Tokmakoglu, Hilmi; Kandemir, Ozer; Gunaydin, Serdar; Catav, Zeki; Yorgancioglu, Cem; Zorlutuna, Yaman
March 2002
European Journal of Cardio-Thoracic Surgery;Mar2002, Vol. 21 Issue 3, p401
Academic Journal
Objective: This prospective randomized study aims at evaluation and comparison of the prophylactic effects of amiodarone versus digoxin and metoprolol combination in postcoronary bypass atrial fibrillation. Methods: A total of 241 consecutive patients undergoing elective coronary artery bypass grafting were randomly allocated into three groups. Patients in Group1 (n=77) received metoprolol 100 mg/24 h per oral (P.O.), preoperatively, 2×0.5 mg digoxin intravenously on the operating day and digoxin 0.25 mg P.O.+metoprolol 100 mg P.O. on the first postoperative day until discharge. Patients in Group 2 (n=72) received totally 1200 mg intravenous/24 h amiodarone which the 300 mg – bolus dose/1 h was given as soon as the operation had been finished. On the next day patients were administered 450 mg/24 h amiodarone i.v. and 600 mg/day in three doses P.O. were given until discharge. Group 3 (n=92) was the control group with no antiarrhythmic prophylaxis. Results: Preoperative patient characteristics and operative parameters were similar in three groups. Atrial fibrillation occurred in 13 patients (16.8%) in Group 1, six patients (8.3%) in Group 2 and 31 patients (33.6%) in Group 3. Conclusion: Both study groups were effective in the prevention of postcoronary bypass atrial fibrillation with respect to control (P<0.01 in Group 1 and P<0.001 in Group 2).


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