摘要
目的探讨心房扑动射频消融术后出现房室传导阻滞的原因及对策。方法回顾性分析35例心房扑动患者,存在房室传导比率≥5:1,均采用消融下腔静脉至三尖瓣峡部,终点达到双向阻滞。29例于房扑下消融,6例是转窦性心律后消融,分析术后发生房室传导阻滞的原因。结果 9例患者术后发生I°至高度房室传导阻滞,其中4例患者恢复,5例患者未恢复。结论心房扑动行射频消融术有造成房室传导阻滞可能,但发生率低。缓慢心室率的心房扑动术前可能合并房室传导阻滞,转窦性心律后消融对增加手术安全性及是否存在并发症的判定有帮助。
Objective To evaluate the mechanism and countermeasures of atrioventricular block after radiofrequency catheter ablation of atrial flutter.Methods Thirty five patients with atrial flutter which the atrioventricular ratio was≥5：1 had undergone radiofrequency ablation of the inferior vena cava-tricuspid valve isthmus,while 29 in flutter and 6 in sinus rhythm.Results AVB fromⅠdegree to high degree occurred in 9 cases,4 recovered and 5 stay long-lasting.Conclusions The occurrence rate of AV block related to radiofrequency catheter ablation of atrial flutter is low but not negligible.AVB may preexist in atrial flutter patients with slow ventricular rate,and rhythm control pre-operation is helpful to evaluate the safety and recognize the complications.
出处
《全科医学临床与教育》
2011年第6期651-652,共2页
Clinical Education of General Practice
关键词
心房扑动
射频消融
房室传导阻滞
atrial flutter
radiofrequency catheter ablation
atrioventricular block
