Nghiên cứu đặc điểm rối loạn nhịp tim ở bệnh nhân trước và sau phẫu thuật cầu nối chủ vành

Abstract

Objective: To assess arrhythmias pre- and post-operative coronary artery bypass grafting by 24-hour Holter ECG to provide preventive measures and appropriate treatment. Subject and method: We studied 119 consecutive patients who underwent isolated coronary artery bypass grafting operations at Hanoi Heart Hospital from 6/2016 to 8/2018. Median follow-up was 6 months. Result: The incidence of preoperative atrial arrhythmias had a high rate of 89.9%, ventricular arrhythmias had a rate of 60.5%. The incidence of postoperative ventricular arrhythmias had 82.9% after 7 days, 67.2% after 3 months and 62.1% after 6 months. Severe ventricular arrhythmia (Lown ≥ 3) had the highest rate after 7 days of surgery, decreasing after 3 and 6 months. New-onset postoperative atrial fibrillation 7 days it was 13.7%, 3 months 13.8% and 6 months was 17.2%. Conclusion: Cardiac arrhythmias were common pre and postoperative coronary artery bypass graft surgery, after surgery the number and degree of ventricular arrhythmias increased due to the acute effects of the surgery. Supraventricular arrhythmias were less affected by surgery, new onset atrial fibrillation increased with time.