**9. Abbreviations**

Postoperative Atrial Fibrillation (POAF), Coronary artery bypass graft (CABG), SinoAtrial (SA) node, AtrioVentricular (AV) node, Electrocardiogram (ECG), Ventricular tachycardia (VT), Ventricular fibrillation (VF), Angiotensin converting enzyme inhibitor (ACE I), Cardio Pulmonary Bypass (CPB), Implantable cardiac defibrillator (ICD), Permanent Pacemaker (PPM), American college of Cardiology (ACC), American Heart Association (AHA), European society of Cardiology (ESC), Advanced cardiovascular life support (ACLS).
