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Introduction: Coronary stents in PCI were designed to reduce abrupt vessel closure and restenosis.Despite pharmacological and technical advances, complications like ; late thrombosis and restenosis are of concem for coronary revascularisation procedures.Objective: To analyze the the long-term follow-up information especially the late complication ,over several years in cormsecutive, unselected patients treated with PCI and stenting.Materials and methods: A single centre obsei-vational study was conducted from August 1996 to July 2004, in the department of Cardiology, IPGME&R, Kolkata,Westbengal, India.Till 2002 all had bare metal stents (BMS) and then onwards majority (60%) underwent BMS and 40% were treated with drug eluminating stents (DES).A total of 98 cases with first stent implantation and turned up for regular follow up were included in the study.Over 15 years patients patients were strictly observed clinically 1,2,3 months initially and there after every 3 month or any time in between when symptoms experienced.Results: Mean age of the study population was 55±2 years and 85% were male.Before the procedure, 34% had unstable angina, 28% had prior event of myocardial infarction and rest had chronic stable angina.Clinical profile showed daibetes mellitus in 1/3rd of the patients and 60% had hypertension.Majority(75%) revealed one vessel deisease.Among 98 cases 80 had BMS and 18 had DES.During follow-up (range 1 to 15 years), the incidence of major cardiac adverse events (MACE) in 12 cases with BMS and two with DES.Ten patients with BMS and two with DES had instant restenosis and late stent thrombosis in one with BMS and two with DES.Where as coronary aneurysm was noted only in one patient with DES.Conclusion: Bare metal stent is effective and safe.All complications except restenosis ,were higher in DES.