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Background To evaluate the long-term efficacy of covered stent implantation to the patients with coronary perforation occurred in percutaneous coronary intervention (PCI).Methods From June 2004 to March 2011, a total of 8 cases received 8 covered stents implantation because of coronary perforation in our center.Ellis grade Ⅲ coronary perforation occurred in 7 patients and Ellis grade I in 1 patient.The patients took clopidogrel 75 mg/day for 2 years, and 100 mg/day for lifetime.The major adverse cardiac events (MACE)were observed in the 8 patients through long-term follow-up.