Risk factors of postoperative atrial fibrillation after on-pump CABG surgery

Abstract

trial fibrillation represents a common complication after on-pump CABG surgery, although it is a benign arrhythmia it may contribute to the morbidity, high cost and prolonged ICU stay. Our study was done on 85 patients underwent on-pump CABG surgery at National Heart Institute. Medical files of the patients were reviewed; all clinical data and laboratory data were collected. Preoperative data included age, gender, BMI, history of diabetes mellitus, history of hypertension and history of smoking. Routine labs were done like CBC, bleeding profile, liver and kidney functions and HbA1c. Furthermore preoperative ECG and echocardiography data were reviewed e.g.: ejection fraction and left atrium diameter. Intraoperative data included type of surgery, duration of bypass and cross clamping, number of grafts and number of transfused blood products units.