房室结慢径消融后对快径前传不应期影响  

The influence of the Slow Pathway Ablation of Atrioventricular Nodel on the Fast Pathway Antegrade Refractory Perid

作　　者：罗莹[1] 蔡力[1] 陶剑虹[1] 黄启华[1] 周晓芳[1] 郑竹虚[1] 

机构地区：[1]四川省人民医院心血管病研究室

出　　处：《医学科技》1999年第2期19-20,共2页

摘　　要：目的 探讨射频消融房室结慢径后对房室结快径不应期的影响。方法 分别测量44例(男21例,女23例)平均年龄46.77±14.89岁的房室结折返性心动过速患者术前、术后快径有效不应期(ERP-FP)和快径前传时间(T-FP)。结果 消融前后快径前传有效不应期由343.18±62.79ms缩短为293.41±48.17ms(P<0.01)。快径前传时间无改变(术前174.55±46.53ms,术后168.18±27.89ms,P>0.05)。结论 慢径消融后快径前传有效不应期缩短,而快径前传时间不受影响。Objective To investigate the influence on the fast pathway antegrade effective refractoryperiod after the slow pathway ablation.Methods The antegrade effective refractory period(ERP-FP)andthe conduction time(T-FP)of the fast pathway of 44 cases with atrioventricular nodel reentrant tachycardiawere measured.Results The ERP-FP was significatly shortened after the ablation,(343.18±62.79ms VS293.41±48.17ms P<0.01),while T-FP was unchanged(174.55±46.53ms VS 168.18±27.89ms P>0.05).Conclusion The slow pathway ablation only shortens the antegrade effective refractory period of thefast pathway,but the conduction time is not influenced.

关 键 词：房室结慢径 射频消融 快径前传不应期 

分 类 号：R541.705[医药卫生—心血管疾病]