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冠状动脉粥样硬化性心脏病（冠心病）的发病率呈逐年上升的趋势，而其治疗方法已经不再局限于单纯的药物治疗。冠状动脉介入治疗已迅速发展起来，特别是冠状动脉支架植入术的广泛应用，为冠心病的治疗带来了新的希望。但术后支架内再狭窄的问题却逐步凸显出来，成为目前亟待解决的问题。导致冠状动脉支架内再狭窄的影响因素众多，引起学者们关注的因素主要有吸烟、高血压、糖尿病、血脂、支架、病变部位及类型等。因此，为了降低冠状动脉支架内再狭窄的发生率，需要通过众多因素的共同预防，才能使支架术后患者获得令人满意的远期疗效。“,”There is an upward trend in the incidence of coronary heart disease,and the treatment is no longer confined to simple drug treatment .Coronary artery interventional therapy has been developed rapidly , especially the wide application of coronary artery stent implantation ,which has brought new hope for the treat-ment of coronary heart disease.However,the problem of stent restenosis after procedure is gradually highlight-ed and has become a problem to be solved at present.Among many affected factors leading to restenosis in stent,the major factors include smoking,high blood pressure,diabetes,lipid,stents,region and type of lesions and so on.Therefore,in order to reduce the incidence of coronary stent restenosis,many factors of prevention are necessary, which can make the patients get satisfactory long-term curative effect.