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目的观察老年人冠脉裸金属支架(bare metal stent,BMS)术后冠脉造影随访结果及临床事件。方法冠心病患者在成功冠脉内裸金属支架术后患者进行冠状动脉造影随访复查,根据患者年龄分为≥60岁的老年组及<60岁的非老年组,对两组支架植入术后冠脉造影随访资料及临床资料进行对比分析。结果老年组89名患者共植入121个裸金属支架,非老年组53例患者植入71个。两组在病变类型、狭窄程度、残余狭窄、支架长度、直径间差异无统计学意义。随访期间老年组与非老年组分别有心力衰竭10例(11.2%)与1例(1.9%)(P<0.05)。冠脉造影发现,两组分别有47个及24个支架发生支架内再狭窄,分别为38.8%及33.8%(P>0.05),再狭窄类型在两组间差异无统计学意义。老年组及非老年组中有新病变或病变进展者非别为22例(24.7)%及23例(43.4%)(P<0.05)。结论老年人成功冠脉裸金属支架植入术后,冠脉造影随访发现支架内再狭窄发生率与非老年人相似,但发生心力衰竭者明显高于非老年人。
Objective To observe the coronary angiographic follow-up results and clinical events of elderly patients with bare metal stent (BMS). Methods Coronary angiography was performed in patients with coronary artery disease after successful coronary stent implantation. According to the age of the patients, the patients were divided into the elderly group of ≥60 years and the non-elderly group of <60 years old. Coronary angiography follow-up data and clinical data for comparative analysis. Results A total of 121 bare metal stents were implanted in 89 elderly patients and 71 in non-elderly patients. There was no significant difference between the two groups in the type of lesion, stenosis, residual stenosis, stent length and diameter. During follow-up, 10 cases (11.2%) and 1 case (1.9%) had heart failure respectively in the elderly group and the non-elderly group (P <0.05). Coronary angiography showed that stent restenosis occurred in 47 and 24 stents, respectively, in 38.8% and 33.8% of the two groups (P> 0.05). There was no significant difference in restenosis type between the two groups. 22 cases (24.7%) and 23 cases (43.4%) had new or advanced disease in the elderly group and the non-elderly group (P <0.05). Conclusion The follow-up of coronary angiography showed that the incidence of in-stent restenosis was similar to that of non-elderly patients after successful coronary stent implantation. However, those with heart failure were significantly higher than non-elderly patients.