药物洗脱支架与冠状动脉旁路移植术治疗无保护左主干病变的疗效比较

冠状动脉旁路移植术一直是无保护左主干病变的标准治疗手段。随着药物洗脱支架的出现,经皮冠状动脉介入治疗越来越多地应用于无保护左主干病变的治疗。比较与冠状动脉旁路移植术孰优孰劣,大量的研究已经证明应用药物洗脱支架治疗无保护左主干病变的安全性及有效性。药物洗脱支架介入治疗的适应证在进一步拓宽,介入治疗指南在不断更新,但就目前而言,无保护左主干病变的药物洗脱支架治疗由于其自身不足,尚不能完全替代冠状动脉旁路移植术。     

单中心经验——药物洗脱支架和冠脉搭桥治疗无保护左主干病变的对比研究

对介入心脏病医生来说无保护左主干病变的介入治疗始终是一个富有挑战性的难题。尽管目前PCI只是有选择的应用于某些无保护左主干病变中,但却取得了鼓舞人心的结果。操作技术、支架内再狭窄及易发生血栓的风险限制了PCI在无保护左主干病变中的应用,所以对于无保护左主干病变仍首选冠脉搭桥治疗。随着药物洗脱支架的出现,支架内再狭窄发生率显著降低,PCI治疗无保护左主干病变又再次引起人们的兴趣。前驱注册研究表明,无保护左主干植入药物洗脱支架确实可行并且非常安全。但是直到目前没有一项研究对药物洗脱支架和冠脉搭桥治疗无保护左主…     

单中心经验——药物洗脱支架和冠脉搭桥治疗无保护左主干病变的对比研究

对介入心脏病医生来说无保护左主干病变的介入治疗始终是一个富有挑战性的难题。尽管目前PCI只是有选择的应用于某些无保护左主干病变中，但却取得了鼓舞人心的结果。操作技术、支架内再狭窄及易发生血栓的风险限制了PCI在无保护左主干病变中的应用，所以对于无保护左主干病变仍首选冠脉搭桥治疗。随着药物洗脱支架的出现，支架内再狭窄发生率显著降低，     

药物洗脱支架年代无保护左主干病变血运重建策略的选择

冠状动脉旁路移植术一直被认为是治疗无保护左主干病变的金标准.近年来,由于经皮冠状动脉介入治疗技术及器械的迅速发展,特别是药物洗脱支架的广泛应用,使冠状动脉介入治疗术后由再狭窄导致的再次靶病变血运重建率明显降低,经皮冠状动脉介入治疗无保护左主干病变研究以及和冠状动脉旁路移植术疗效对比研究越来越多,并且显示药物洗脱支架对无保护左主干病变有良好的疗效,其安全性与冠状动脉旁路移植术相似,甚至在某些方面具有优势.现就近年来冠状动脉旁路移植术和冠状动脉介入治疗无保护左主干病变的研究进展做一综述,探讨在药物洗脱支架年代无保护左主干病变治疗策略的选择.     

药物洗脱支架治疗老年冠心病无保护左主干病变近中期疗效观察

无保护左主干病变是冠心病介入治疗中最具挑战的病变之一。药物洗脱支架可使主要不良心脏事件发生率从金属裸支架的16.4%减至7.8%[1]。2002年10月~2005年4月间,我科应用药物洗脱支架治疗经选择的老年冠心病无保护左主干病变27例,现报道如下。1临床资料共有27例经冠状动脉(冠脉)     

药物洗脱支架和冠状动脉旁路移植术治疗无保护左主干病变的疗效分析

背景冠状动脉无保护左主干病变(ULMCA)在冠脉病变患者中风险最高,预后最差,冠状动脉旁路移植术(CABG)能显著降低死亡率,延长患者生存期,故一直被认为是治疗冠脉无保护左主干病变的金标准。但随着冠脉介入技术的进步,药物洗脱支架(DES)能显著降低支架置入后再狭窄的风险和再介入的比例,因此也成为无保护左主干病变的治疗方法之一,而冠脉搭桥作为左主干病变治疗金标准的的地位正日益受到挑战。目的比较药物洗脱支架(DES)置入与冠状动脉旁路移植术(CABG)对冠状动脉无保护左主干病变患者的近期及远期疗效。方法回顾性收集2006年12月到2009年12月在苏州大学附属第一人民医院接受治疗的49例冠状动脉左主干狭窄患者的临床资料,其中26例置入药物洗脱支架(DES组),23例患者接受了冠脉旁路移植术(CABG组),记录两组患者围手术期、术后6月到3年的主要心脑血管不良事件(MAC-CE)发生率。结果 (1)两组患者一般临床特征比较无统计学意义;(2)平均随访(16.4±8.8)个月,DES组与CABG组的MACCE发生率分别为11.5%及13.0%,P>0.05;(3)DES组与CABG组术后2年无事件生存率分别为78.8%及85.0%,P>0.05。结论药物洗脱支架置入对于无保护左主干病变患者是安全、有效、可行的,有着与冠脉搭桥相似的近、远期疗效,但对于左主干累及分叉病变者,DES组因较高的血运重建率而疗效略差于CABG。     

药物洗脱支架治疗左主干病变的疗效评价

冠脉搭桥术曾经被认为是左主干病变治疗的“金标准”,近年来经皮冠脉介入治疗也在该领域取得一些进展,一系列临床试验证实药物洗脱支架治疗左主干病变安全可行,但在左主干远端分叉病变还存在再狭窄率高的问题。就目前而言,对于有选择的左主干病变,药物洗脱支架是一种充满生机的治疗方法。     

TCT2008热点：无保护左主干病变——PCI还是CABG

1药物洗脱支架(DES)在左主干病变的治疗中比冠状动脉搭桥术(CABG)有更低的脑血管事件、死亡和心肌梗死发生率———注册数据显示左主干病变中支架置入越来越流行在无保护左主干冠脉病变中长期的数据似乎更支持经皮冠状动脉介入治疗(PCI)而不是CABG。意大利San Raffaele医院的Ch     

药物洗脱支架治疗冠脉无保护左主干病变的近中期疗效

目的：评价药物洗脱支架治疗冠脉无保护左主干病变的临床疗效。方法：回顾性分析2009年1月～2011年1月完成的65例无保护左主干病变药物洗脱支架置入术患者的临床资料。结果：65例无保护左主干病变患者全部成功置入支架,住院期间无主要心血管事件发生;术后6个月冠脉造影随访28例（43.1%）,其中2例发生再狭窄,再狭窄率7.1%;3年电话随访54例（83.1%）,其中8例患者心绞痛复发（14.8%）;2例（3.7%）行冠状动脉旁路移植术,余均无症状生存,3年生存率为100%。结论：药物洗脱支架治疗经选择的冠脉无保护左主干病变是安全可行的,有较理想的近期和中期疗效。     

无保护左主干分叉病变研究进展

随着经皮冠状动脉介入技术的迅速发展,应用药物洗脱支架治疗无保护左主干病变的安全性和有效性已得到临床证实.而无保护左主干分叉病变具有与非左主干分叉病变不同的特征.理解无保护左主干分叉病变的分型、局部解剖特点,熟练掌握无保护左主干分叉病变手术方式具有重要意义.     

Coronary artery bypass grafting following in-stent restenosis of drug-eluting stents deployed in the left main coronary artery.

Two cases of drug-eluting stent restenosis after percutaneous coronary intervention in the left main coronary artery and its bifurcation are presented. An off-pump coronary artery bypass grafting following in-stent restenosis was performed. Drug-eluting stents have shown a reduced frequency of in-stent restenosis and a good safety profile compared with bare metal stents. However, intervention with drug-eluting stents for left main coronary artery disease should be undertaken with care. It is also important to note that preoperative anti-platelet drug administration can increase the risk of major bleeding during and after emergent surgery.     

Unprotected left main stent placement in a patient with Takayasu's arteritis: an unusual solution for an unusual disease

We describe the case of a young woman with Takayasu's arteritis that initially manifested as heart failure due to left main coronary artery stenosis. The patient's occluded subclavian artery and the active inflammatory process of Takayasu's arteritis precluded coronary artery bypass grafting with the use of arterial grafts. Therefore, a drug-eluting stent was placed in the unprotected left main artery. This procedure resulted in the resolution of symptoms, with a patent stent and no new coronary lesions observed on 3-month angiography, and normal left ventricular function on 9-month echocardiography. We conclude that the use of drug-eluting stents may be an important treatment option for Takayasu's arteritis patients with life-threatening coronary artery disease for whom coronary artery bypass grafting is not an option.     

Percutaneous Coronary Intervention with Stenting versus Coronary Artery Bypass Grafting in Stable Coronary Artery Disease

The debate over coronary artery bypass grafting (CABG) or percutaneous coronary intervention (PCI) with stent placement for the treatment of stable multivessel coronary artery disease (CAD) continues in spite of numerous studies investigating the issue. This paper reviews the most recent randomized control trials (RCT) and meta-analyses of pooled RCT data to help address this issue. General trends demonstrated that CABG was superior in all-cause mortality and fulfilling the need for repeat revascularization. These advantages tended to be more pronounced in multivessel CAD and diabetes, and less so in left main CAD. PCI showed a consistently lower rate of cerebrovascular events. CABG continues to offer significant advantages over PCI, even as drug-eluting stent technology continues to evolve. The ideal endpoint for comparing PCI and CABG remains to be determined. Furthermore, additional research is required to further refine patient selection criteria for each intervention.     

Kissing sirolimus-eluting stents for the treatment of left main coronary artery stenosis.

We present a case of kissing drug-eluting stent deployment in the left main coronary artery in a 43-year-old male with failed previous bypass grafting. We discuss the technique used for stent deployment and the rationale for using this technique in the drug-eluting stent era.     

Treatment of unprotected left main coronary artery disease with drug-eluting stents: is it time for a randomized trial?

The treatment of unprotected left main coronary artery disease by percutaneous intervention represents a considerable challenge for interventional cardiologists. The American College of Cardiology/American Heart Association guidelines currently recommend surgical revascularization for this disorder and percutaneous interventions have thus far been performed only in exceptional cases, albeit with positive results in some patients. Technical limitations, however, including stent restenosis, limit the application of this technique at present. The availability of drug-eluting stents, which are associated with a reduction in angiographic restenosis, might change this situation. Preliminary results show that the implantation of drug-eluting stents for unprotected left main coronary artery lesions is a feasible and safe approach. Randomized clinical trials comparing the use of drug-eluting stents with coronary artery bypass surgery for unprotected left main coronary artery disease are the next step, but can such trials be contemplated at this stage? In this review we present an overview of the findings to date and discuss the direction that research should now take.     

Left Main Coronary Interventions: A Practical Guide

Coronary artery bypass surgery has been the accepted treatment for left main coronary artery disease for over 50 years. Balloon angioplasty was later used then abandoned because of deaths likely due to restenosis or thrombotic occlusion. However, rapid innovations in drug-eluting stent designs leading to more biocompatible thin strut platforms with optimal drug elution profiles and further advances in modern pharmacotherapy involving potent P2Y₁₂ inhibitors combined with utilization of intracoronary imaging and physiologic assessment for procedural planning and optimization have transformed percutaneous interventions into successful alternatives to coronary artery bypass graft surgery (CABG) in selected LM anatomic territories. Herein, we provide an evidence-based practical guide on how to approach and perform LM percutaneous interventions (PCI).     

Coronary pseudoaneurysm in a non-polymer drug-eluting stent: a rare entity

Coronary pseudoaneurysms following implantation of drug-eluting stents, although rare, are not unknown. Nearly all such cases have been reported in patients with sirolimus or paclitaxel polymer-based stents. We describe a case of coronary pseudoaneurysm developing with a non-polymer-based drug-eluting stent in a 50-year-old man who was successfully managed by coronary artery bypass grafting.     

Revascularization of unprotected left main coronary artery disease with percutaneous coronary intervention: the role of drug-eluting stents

The percutaneous revascularization of left main coronary artery stenosis has until recently been reserved for patients at prohibitive surgical risk or for selected emergent cases. This adopted practice of coronary artery bypass grafting, as the standard of care for left main coronary artery stenosis, has largely occurred secondary to disappointing results with bare metal stents implanted in the left main coronary artery. However, in the current era of drug-eluting stents (DES) which significantly reduce restenosis compared to bare metal stents, there has been a renewed interest in examining the role of percutaneous coronary intervention as a means of revascularization of left main disease. This article discusses recent and ongoing studies investigating the role of percutaneous intervention of left main disease, with an emphasis on the use of DES for this purpose.