高脂蛋白a血症对冠状动脉支架术后再狭窄的影响

目的 探讨高血清脂蛋白(a)LP(a)]血症与冠状动脉支架植入术后支架内再狭窄的关系.方法 对152例成功在我院行经皮冠状动脉成形术(PTCA)+支架植入术并于术后行冠状动脉造影随访的患者进行回顾性分析.分为再狭窄组(29例)和无再狭窄组(123例),检测患者血LP(a)水平,对其一般临床资料也进行调查分析.统计学采用Logistic多因素逐步回归分析.结果 2组患者在高LP(a)血症、吸烟、糖尿病比例方面差异均有统计学意义(P均<0.05).Logistic多因素逐步回归分析显示:LP(a)水平是支架术后支架内再狭窄发生的独立危险因素,RR为2.648,95%CI为1.066～6.575,P<0.05.其他因素如吸烟(P=0.023)、糖尿病(P=0.036)、支架类型(P=0.011)也与支架内再狭窄发生有关(P均<0.05).结论 高LP(a)血症是发生冠状动脉支架术后再狭窄的独立危险预测因素.

Effect of devated plasma lipoprotein (a) on restenosis after stent implantation

Objective To investigate the association between plasma lipoprotein (a) LP (a)] concentra-tion and in-stent restenosis after coronary stent implantation. Methods 152 patients with successful elective coro-nary stont implantation and percutancous transluminal coronary angioplasty (PICA) undergoing foUow-up angiogra-phy were retrospectively analyzed. These patients were divided into restenosis group( n = 29) and no-restenosis group (n = 123 ). The serum LP (a) levels of all patients were also investigated. The general clinical data were analyzed. Multivariate logistic regression was used for statistical analysis. Results We compared the serum Lap (a) levels, smoking and diabet in the two groups, and there was a statisticaLly significant difference between the restenosis group and no-restenosis group(P<0.05). Multivariate logistic regression showed that the elevation of Lap (a) level re-mained as an independent predictor of restenosis (RR =2. 648,95% CI 1. 066-6. 575,P <0. 05). Other risk fac-tors,such as smoking(P =0.023) ,diabet(P =0. 036) and the type of stent(P = 0.011 ) were also correlated with restenosis. Conclusions High plasma LP (a) concentration is an independent predictor of stent restenosis after stent implantation.