Incidence and prognostic significance of myocardial injury after elective percutaneous coronary intervention in Duhok, Iraq

Abstract

This study aims to look at the incidence of myocardial injury after elective percutaneous coronary intervention (PCI) and to correlate its effect to midterm clinical outcome. Methods: A total of 182 patients were enrolled. Their mean age was (57.44 ± 9.15) years. They were undergoing elective PCIs in Azadi heart center, Duhok, Iraq. Cases with positive cardiac troponin (cTn) pre-procedural were excluded. Within first 24-hours after PCI (cTn) was estimated. And then after all patients were followed for 12 months for major adverse cardiac events (MACE). Results: 36 (19.8%) out of 182 (100%) had elevated cTn. Those patients with elevated cTn had a statistically significant higher rate of prior CABG, ECG changes, triple vessels disease, type C lesions, post stent balloon dilatation and more periprocedural side branch jeopardy and coronary dissections compared to those with negative cTn (P ≤ 0.05). During follow up; the MACE was higher in patients with positive cTn (log rank = 0.04). Conclusion:Minor myocardial injury after elective PCI is common. It's associated with procedural complexity and stratified patients at risks of worse prognosis.