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目的：评价冠状动脉内支架的临床价值。材料与方法：321例冠心病患者冠状动脉内植入451个支架，植入成功率97．8／，其中79．1％（254例）为B2型以上复杂性病变，因DeNovo及Suboptimal病变植入的支架占56.7％（182／321），Bail－out病变16．5％（53／321），再狭窄病变26.8％（86／321）。结果：28例曾行冠状动脉搭桥水患者的28文静脉移植血管（SVG）内植入49个支架，16例急性心肌梗塞患者接受原发支架植入。多支架植入99例，其中植入3个以上支架者26例。支架类型：Palmaz－schatz支架占69.7％（314个），NIR支架占20．6％（93个），其它支架占9．8％（44个）。多数病例使用高压球囊扩张，住院期间发生急性支架血栓形成6例（1．9％），亚急性支架血栓形成2例，其中1例因心肌梗塞死亡，无严重出血并发症。21例（6.5％）术后2－11个月胸痛复发者支架部位再狭窄，再次PTCA。结论：冠脉内支架是一种安全有效的介入性治疗技术．其扩大了PTCA的适应症，成功率高，并发症低，并减少再狭窄的发生。
Objective: To evaluate the clinical value of coronary stent. MATERIALS AND METHODS: A total of 451 stents were implanted into coronary arteries in 321 patients with coronary heart disease. The success rate of implantation was 97.8%, of which 79.1% (254 cases) were complicated type B2 or more. Due to DeNovo and Suboptimal disease 56.7% (182/321) of the stents entered the study, 16.5% (53/321) of the Bail-out lesions and 26.8% (86/321) of the restenosis lesions. RESULTS: Forty-nine stents were implanted into 28 of 28 SVG patients who underwent coronary bypass surgery. Sixteen patients with acute myocardial infarction underwent primary stent implantation. Multi-stent implantation in 99 cases, of which more than 3 implants in 26 cases. Stent types: Palmaz-schatz stent accounted for 69.7% (314), NIR stent accounted for 20.6% (93), other stents accounted for 9.8% (44). In most cases, high-pressure balloon dilatation occurred in 6 cases (1.9%) of acute stent thrombosis during hospitalization, 2 cases of subacute stent thrombosis, 1 of them died of myocardial infarction without serious bleeding complications. Twenty-one patients (6.5%) had stent restenosis after 2 to 11 months of recurrent chest pain, and again PTCA. Conclusion: Coronary stent is a safe and effective interventional therapy. It expands the indications for PTCA with high success rates, low complication, and reduced restenosis.