房颤射频消融术中较低ACT的安全性

Evaluation of the security of low ACT in atrial fibrillation ablation

目的检测房颤消融术中ACT值，评价维持ACT200-300S的安全性。方法观察2009年1月～2011年9月天津武警后勤学院附属医院行房颤消融的66例患者，根据ACT值的大小，分为低ACT组（ACT200-300s）和高ACT组（ACT〉300S），分析两组出血和栓塞并发症的发生情况。结果66例患者，低ACT组42例，高ACT组24例，穿刺点出血、消化道出血、心包填塞和脑出血等出血并发症，在低ACT组1例，发生率2．3％，在高ACT组5例，发生率20．8％，两组比较有显著性差异，两组均没有栓塞并发症。结论房颤消融术中，维持较低AcT值更安全，值得临床推广。

[ Objective ] To evaluate the security of low ACT value （200-300 s） during atrial fibrillation ablation. [Methods] From Jan 2009 to Sep 2011, 66 patients with atrial fibrillation in our hospital were treated with ablation. According to the value of ACT, 24 patients were enrolled in low ACT group （ACT 200-300 s）, 42 patients were enrolled in high ACT group（ACT〉300 s）. [Results] The rate of complications including punture site hemorrhage, alimentary tract hemorrhage, cardiac tamponade, cerebral hemorrhage was 2.3% in low ACT group vs 20.8% in high ACT group （P 〈0.05）. [ Conclusions ] During atrial fibrillation ablation, maintaining low ACT was safer than high ACT.