药物洗脱支架治疗无保护左主干远端分叉病变的长期预后

摘要

Objective To evaluate the long-term clinical outcome of percutaneous coronary intervention ( PCI) with drug-eluting stents ( DES) for distal unprotected left main coronary artery (ULMCA) lesions. Methods Between Jan 2005 and Dec 2009, 111 patients with distal ULMCA disease who underwent drug-eluting stents implantation were enrolled in this retrospective study. The primary end points were major adverse cardiac and cerebrovascular event (MACCE) at follow-up, including death, non-fatal myocardial infarction, cerebrovascular event and target lesion revascularization ( TLR) . Results Patients were 65. 6 ± 10 years old. 21. 6% were diabetic. 31. 5% of the left main bifurcations were classed as Medina 1, 1, 1. Provisional T stent technique was performed for 79. 3% of the population. 30. 6% of cases underwent angiography follow-up. The median follow-up time was 2. 3 years, the MACCE-free survival was 87. 4% and the estimated freedom from TLR was 94. 6% . Diabetes mellitus was identified as the predictor of TLR. Conclusions PCI with DES for distal ULMCA disease was safe and effective when the strategy was made based on the case-by-case assessment.%目的：评估使用药物洗脱支架(drug-eluting stents,DES)治疗无保护左主干(unprotected left main coronary artery,ULMCA)远端分叉病变的长期预后。方法回顾性入选2005年1月至2009年12月因 ULMCA 远端分叉病变行 DES 置入的111例患者。以随访过程中发生的主要不良心脑血管事件(major adverse cardiac and cerebrovascular event,MACCE)作为研究终点,包括死亡、非致死性心肌梗死、脑血管意外以及靶病变血运重建(target lesion revascularization,TLR)。结果111例患者的平均年龄为(65.6±10)岁,其中24例(21.6%)合并糖尿病,35例(31.5%)左主干分叉病变为Medina 1,1,1型,88例(79.3%)接受必要时 T 支架术。中位随访时间为2.3年,随访过程中34例(30.6%)复查冠状动脉造影。无 MACCE 事件的生存率为87.4%,无 TLR 的生存率为94.6%,糖尿病是 TLR 的独立预测因素( OR 2.62,95% CI 1.12~1.62,P =0.004)。结论使用 DES 治疗ULMCA 远端分叉病变是安全并且有效的。