Abstract
Objective: Atrial fibrillation (AF) is the most common arrhythmia seen after coronary artery surgery. The purpose this study was to determine incidence of AF that develops after coronary surgery and the factors affecting its development. Methods: Four hundred and forty eight patients who had coronary bypass surgery between February 2007 and September 2011 in the Cardiovascular Surgery Clinic were included in the study. Patients with history of chronic renal failure, redo coronary bypass surgery, valvular disease, thyroid disease, ventricular aneurysm and treatment with beta-blockers were excluded from the study of EF. Results: Two hundred and ninety nine patients were male and 149 were female and their age varied between 38 and 85 and their mean age was 61±5. Surgery was performed on beating heart on 178 patients and the others were operated with cardiopulmonary bypass (CPB). Advanced age, male sex and history of hypertension was more in AF developed patient group. There was no difference between AF developed group and the other group in terms of diameter of left atrium, ejection fraction (EF), CPB time and cross clamp time. Conclusion: Advanced age, male sex, hypertension and prolonged P-wave duration are the factors that are associated with AF after coronary surgery. Avoidance of CPB does not decrease AF development.
Highlights
Atrial fibrillation (AF) that develops in the postoperative period is mostly temporary and1
The reason of postoperative AF developed in patients who had coronary bypass surgery is not known, multiple risk factors and triggering events were considered responsible
It is suggested that cardiopulmonary bypass (CPB) is a major risk factor.[2]
Summary
Atrial fibrillation (AF) that develops in the postoperative period is mostly temporary and. 1. Sedat Ozcan, Department of Cardiovascular Surgery, Canakkale Onsekiz Mart University, Faculty of Medicine, Canakkale, Turkey. Correspondence: December 19, 2013 February 20, 2014 spontaneously returns to sinus rhythm. Because high ventricular response dependent to AF may lead to decrease in cardiac output, hypotension, congestive heart failure and there is no atrial contraction and thromboembolic events may occur, postoperative AF is the most frequent reason of mortality after coronary surgery and may lead to deterioration of hemodynamics and increase in thromboembolic events.[1]. The treatment of AF developed after coronary surgery initially only consists of control of ventricular rate. If AF does not recover and hemodynamic deterioration occurs, pharmacological or electrical fibrillation is preferred. It is suggested that AF disturbs flow in bypass grafts
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