Benign Late T wave Inversion Post coronary artery bypass grafting: of Myocardial Reperfusion Sign Appearing Late on ECG a case report

Bacground: The onset of new T wave inversion (TWI) on an electrocardiogram (ECG) has always been considered an alarming sign of myocardial ischemia. Successful myocardial infarction reperfusion is indicated by the presence of early TWI after revascularization. We report a case of benign late precordial TWI post-coronary artery bypass grafting (CABG) with no evidence of myocardial ischemia. Case report: A 44-year-old Middle, medically free apart from dyslipidemia on a trial of diet presented with non-ST-segment elevation MI (NSTEMI). Coronary catheterization revealed triple vessel disease involving ostial to mid LAD 80% lesion, ostial 80% D1 lesion, ostial 80% OM1 lesion, and diffusely disease RCA up to the bifurcation of PDA/PLV branches, followed by CABG two weeks later-LIMA to LAD, SVG to D1, OM1 and PDA Conclusion: Anterior precordial T wave inversion can present as a late ECG sign of successful myocardial reperfusion in Non ST segment myocardial infarction after revascularization via CABG.