金属裸支架植入治疗冠状动脉不同病变的远期疗效比较

Long-term Efficacy of Bare Metal Stents Implantation in Patients with Different Coronary Lesion Types

目的探讨冠心病(CHD)患者植入金属裸支架(BMS)的远期疗效.方法随访植入BMS的CHD患者224例.随访指标:1)全因死亡;2)主要心脏不良事件(MACE);3)靶病变血管重建(TLR)、靶血管重建(TVR);4)支架内再狭窄和/或支架节段内再狭窄等.结果 224例中累积MACE发生率为35.7%,平均每年MACE发生率为4.58%.CAG复查的148例中,冠状动脉A型病变再狭窄率16.4%,B1型病变24.1%,B2型病变62.2%,C型病变66.7%.晚期管腔丢失率平均为(29.32±10.17)%.结论植入BMS治疗冠状动脉病变A型和B1型,远期MACE发生率和再狭窄率均较低,远期效果与安全性好.

Objective To evaluate the long-term efficacy of bare-metal stent（BMS） implantation in patients with different coronary lesion types.Method A total number of 224 patients with CHD undergoing BMS implantation were enrolled.The main endpoint included the occurrence of the first major adverse cardiac event（MACE）,target lesion revascularization（TLR） and target vessel revascularization（TVR）.Restenosis was defined in diameter in-stent and in-segment of stent defined of both ends of stent implanted.Results The combined cumulative MACE rate of 224 patients was 35.7% with an average of 4.58% per year.In the cases of 148 followed by CAG,coronary artery restenosis rate was 16.4% in type A lesion,24.1% in type B1 lesions,62.2% in B2 type lesions and 66.7% in type C lesions.The rate of Late lumen loss was an average of（29.32 ± 10.17） %.Conclusion BMS implantation was used to treat the selective coronary artery stenosis lesions such as type 1 and type B1 lesions,which showed low incidence rate of MACE and the rate of restenosis,good efficiency and safety in long-term.