Alexander Cherniavsky1, Yulia Kareva2, Inessa Pak1, Sardor Rakhmonov1, Evgeny Pokushalov3, Alexander Romanov3, Alexander Karaskov4. 1. Department of Surgery, Aorta, Coronary and Peripheral Arteries, Novosibirsk Research Institute of Circulation Pathology, Novosibirsk, Russia. 2. Department of Surgery, Aorta, Coronary and Peripheral Arteries, Novosibirsk Research Institute of Circulation Pathology, Novosibirsk, Russia julia11108@mail.ru. 3. Department of Rhythm Disorders of the Heart, Novosibirsk Research Institute of Circulation Pathology, Novosibirsk, Russia. 4. Novosibirsk Research Institute of Circulation Pathology, Novosibirsk, Russia.
Abstract
OBJECTIVES: We report our experience with a modified mini-maze procedure and pulmonary vein isolation using radiofrequency energy for treating persistent atrial fibrillation during coronary artery bypass grafting (CABG). METHODS:Ninety-five patients with persistent atrial fibrillation and coronary heart disease underwentopen heart surgery combined with intraoperative irrigated radiofrequency ablation. Patients were randomized into the following three groups: CABG and irrigated radiofrequency pulmonary vein isolation (CABG+PVI, n = 31); CABG and an irrigated radiofrequency modified mini-maze procedure (CABG+MM, n = 30); and isolated CABG (CABG alone, n = 34). All patients received implantable loop recorders. RESULTS:No reoperation and no hospital mortality were recorded. Mean follow-up was 14.4 ± 9.7 months. The implantable loop recorder-determined freedom from atrial fibrillation was 80% in the CABG+PVI group, 86.2% in the CABG+MM group and 44.1% in the CABG alone group. CONCLUSIONS:Patients with concomitant atrial fibrillation and coronary heart disease may benefit from intraoperative ablation to prevent relapse of arrhythmia.
RCT Entities:
OBJECTIVES: We report our experience with a modified mini-maze procedure and pulmonary vein isolation using radiofrequency energy for treating persistent atrial fibrillation during coronary artery bypass grafting (CABG). METHODS: Ninety-five patients with persistent atrial fibrillation and coronary heart disease underwent open heart surgery combined with intraoperative irrigated radiofrequency ablation. Patients were randomized into the following three groups: CABG and irrigated radiofrequency pulmonary vein isolation (CABG+PVI, n = 31); CABG and an irrigated radiofrequency modified mini-maze procedure (CABG+MM, n = 30); and isolated CABG (CABG alone, n = 34). All patients received implantable loop recorders. RESULTS: No reoperation and no hospital mortality were recorded. Mean follow-up was 14.4 ± 9.7 months. The implantable loop recorder-determined freedom from atrial fibrillation was 80% in the CABG+PVI group, 86.2% in the CABG+MM group and 44.1% in the CABG alone group. CONCLUSIONS:Patients with concomitant atrial fibrillation and coronary heart disease may benefit from intraoperative ablation to prevent relapse of arrhythmia.
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