CORONARY IN-STENT RESTENOSIS AND CORONARY ARTERY BYPASS GRAFT STENOSIS IN POST MYOCARDIAL REVASCULARISED PATIENTS- SINGLE CENTRE EXPERIENCE FROM NORTH INDIA

Abstract

Aims and Objective : To calculate the incidence of coronary artery In-stent restenosis and coronary artery bypass graft stenosis in post myocardial re-vascularised patients in Indian context. ThisMethods : is an observational study , coronary artery disease patients earlier re-vascularized either by coronary stent implantation or by coronary artery bypass graft presented with exertional angina , anginal equivalents , symptoms of heart failure or acute coronary event were enrolled in the study, patient with contraindications to coronary angiogram were excluded. The data collected from CAG was analysed by using quantitative coronary angiography and statistical analysis was performed using SPSS version. Study included total 201 patients, 117 in PTCA group , 84 in CABG group. Out of 184 stents, 34 stentsResults : showed >50% restenosis with incident rate 14.3% for DES and 47.80% for BMS respectively The incidence rate of restenosis was higher in BMS than DES in PTCA group ,where as the stenosis rate of LIMA graft(8.7%) was minimal in comparison to SVG graft(43.81%). Statistically no difference in restenosis rate between diabetic and non diabetic population in both PTCA and CABG group. Our observational study reected the rate of In-stent restenosis and coronary artery bypassConclusion:- graft stenosis both in PTCA and CABG groups in concordance with previous studies. In PTCA group BMS have higher incidence of In-stent restenosis in comparison with DES where as in CABG group venous graft have higher stenosis than arterial graft. There is no difference in restenosis rate among diabetic and non diabetic population in our study.