早期PCI对急性心肌梗塞并发完全性右束支传导阻滞患者预后的影响

Influence of early percutaneous coronary intervention on the prognosis in patients with acute myocardial infarction complicated complete right bundle branch block

目的:探讨早期PCI对急性心肌梗塞(AMI)并发完全性右束支传导阻滞(CRBBB)患者预后的影响。方法:回顾分析AMI并发CRBBB患者36例的临床资料,分为两组,早期行PCI的12例为观察组,未行PCI的24例为对照组,对两组患者的左室射血分数(LVEF)、心功能Killip分级、严重恶性心律失常发生率及住院病死率等临床资料进行对比性分析,并做统计学处理。结果:观察组的心功能Killip分级[(1.7±0.5)级∶(2.6±0.5)级]、严重恶性心律失常发生率(8.3%∶20.8%)及住院病死率(8.3%∶33.3%)均显著低于对照组(P<0.01),观察组的LVEF[(56.3±7.1)%∶(32.6±4.7)%]显著高于对照组(P<0.01)。结论:早期PCI可以改善急性心肌梗塞并发完全性右束支传导阻滞患者的预后。

Objective： To evaluate the influence of early percutaneous coronary intervention （PCI） on the prognosis in patients with acute myocardial infarction （AMD complicated by complete right bundle branch block （CRBBB）. Methods： A total of 36 AMI cases combined with CRBBB were divided into two groups： 12 cases were treated by early PCI as observing group and 24 cases treated with routine therapy as control group. Left ventricular ejection fraction （LVEF）, Killip grade of heart function, incidence rate of severe arrhythmia and case fatality rate were compared and statistically analyzed. Results： The incidence rate of severe arrhytbmia （8. 3% vs. 20.8%） and case-fatality rate （8.3% vs. 33.3%）, the rate of Killip grading ≥Ⅲ [（1.7±0.5） grade vs. （2.6±0.5） grade] were significantly lower in observing group than those in control group （P〈0.01 all）. The LVEF after treated were significantly higher in observing group than those in control group [ （56.3±7.1）% vs. （32.6±4.7）%, P〈0.01]. Conclusion： In patients with acute myocardial infarction combined with complete right bundle branch block, the early percutaneous coronary intervention could improve their prognosis.