Mantas Kievišas1, Vytenis Keturakis2, Egidijus Vaitiekūnas3, Lukas Dambrauskas3, Loreta Jankauskienė4, Šarūnas Kinduris2,5. 1. Medical Academy, Lithuanian University of Health Sciences, Kaunas, 2 Eiveniu St, 50009, Kaunas, Lithuania. mantas.kiev@gmail.com. 2. Department of Cardiothoracic and Vascular Surgery, Medical Academy, Lithuanian University of Health Sciences, Kaunas, 2 Eiveniu St, 50009, Kaunas, Lithuania. 3. Medical Academy, Lithuanian University of Health Sciences, Kaunas, 2 Eiveniu St, 50009, Kaunas, Lithuania. 4. Department of Cardiology, Medical Academy, Lithuanian University of Health Sciences, Kaunas, 2 Eiveniu St, 50009, Kaunas, Lithuania. 5. Institute of Cardiology, Lithuanian University of Health Sciences, Kaunas, 2 Eiveniu St, 50009, Kaunas, Lithuania.
Abstract
OBJECTIVE: Postoperative atrial fibrillation (POAF) is the most common complication after cardiac surgery. To prevent this complication, routine pharmacological prophylactic drugs could be administered. Our study aimed to analyze the various perioperative factors associated with the development of POAF after coronary artery bypass graft (CABG) surgery. METHODS: This prospective study included 617 patients, who received CABG surgery in the year 2014. RESULTS: There were 429 (69.5%) male and 188 (30.5%) female patients. Mean patient age was 67.2 (9.4) years, and 365 patients (59.2%) were more than 65 years. Incidence of POAF was 24.1% (N = 149). Multivariable analysis showed that independent predictors of POAF after CABG surgery were: age >65 (P = 0.008; OR 2.089; 95% CI 1.208-3.613), AF in the past (P < 0.001; OR 10.838; 95% CI 5.28-22.247), preoperative hypertrophy or dilation of left atrium (P = 0.002; OR 4.996; 95% CI 1.823-13.691), CABG surgery using 4 or more bypass grafts (P = 0.042; OR 1.669; 95% CI 0.972-2.866), preoperative hypokalemia (P = 0.001; OR 3.317; 95% CI 1.678-6.559), >trivial mitral (P = 0.024; OR 7.556; 95% CI 0.964-20.376), and aortic (P = 0.009; OR 1.937; 95% CI 1.178-3.187) valve regurgitation. CONCLUSIONS: The profile of patients affected by POAF was considerably different with regard to the demographics, preoperative heart condition, history of previous heart rhythm disorders, and operative data. The most important independent factors that predicted POAF after CABG surgery were associated with structural heart defects, advanced age, history of previous AF, and preoperative hypokalemia.
OBJECTIVE:Postoperative atrial fibrillation (POAF) is the most common complication after cardiac surgery. To prevent this complication, routine pharmacological prophylactic drugs could be administered. Our study aimed to analyze the various perioperative factors associated with the development of POAF after coronary artery bypass graft (CABG) surgery. METHODS: This prospective study included 617 patients, who received CABG surgery in the year 2014. RESULTS: There were 429 (69.5%) male and 188 (30.5%) female patients. Mean patient age was 67.2 (9.4) years, and 365 patients (59.2%) were more than 65 years. Incidence of POAF was 24.1% (N = 149). Multivariable analysis showed that independent predictors of POAF after CABG surgery were: age >65 (P = 0.008; OR 2.089; 95% CI 1.208-3.613), AF in the past (P < 0.001; OR 10.838; 95% CI 5.28-22.247), preoperative hypertrophy or dilation of left atrium (P = 0.002; OR 4.996; 95% CI 1.823-13.691), CABG surgery using 4 or more bypass grafts (P = 0.042; OR 1.669; 95% CI 0.972-2.866), preoperative hypokalemia (P = 0.001; OR 3.317; 95% CI 1.678-6.559), >trivial mitral (P = 0.024; OR 7.556; 95% CI 0.964-20.376), and aortic (P = 0.009; OR 1.937; 95% CI 1.178-3.187) valve regurgitation. CONCLUSIONS: The profile of patients affected by POAF was considerably different with regard to the demographics, preoperative heart condition, history of previous heart rhythm disorders, and operative data. The most important independent factors that predicted POAF after CABG surgery were associated with structural heart defects, advanced age, history of previous AF, and preoperative hypokalemia.
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