摘要
目的比较持续性心房颤动(房颤)导管消融术后复发二尖瓣峡部心房扑动(房扑)患者不同消融策略,探讨复发二尖瓣峡部相关房扑的优化消融方案。方法回顾性分析2010年1月至2012年12月北京安贞医院持续性房颤导管消融后复发,术中电生理检查明确为二尖瓣峡部相关房扑的患者74例。根据再次消融时不同消融策略分为两组:心动过速下消融组(A组,43例)和复律后窦性心律下消融组(B组,31例)。消融终点均为双侧肺静脉电隔离以及左心房顶部线、二尖瓣峡部线、三尖瓣峡部线的双向传导阻滞。术后随访比较两组患者未服用抗心律失常药物情况下窦性心律的维持率。结果两组患者年龄、性别、体重指数、高血压病、糖尿病、冠心病等比较,差异均无统计学意义(均P>0.05)。两组患者二尖瓣峡部阻断、肺静脉、左心房顶部线及三尖瓣峡部消融线比较,差异均无统计学意义(均P>0.05);B组患者手术时间[(132.5±29.6)min比(150.2±41.1)min,P=0.044]、透视时间[(23.1±8.6)min比(27.9±7.2)min,P=0.011]和消融时间[(14.0±4.1)min比(16.3±4.7)min,P=0.027]显著低于A组,差异均有统计学意义。平均随访(16.9±6.3)个月,两组患者窦性心律维持率比较,差异无统计学意义(P=0.771)。结论持续性房颤初次导管消融术后复发二尖瓣峡部相关房扑的患者,复律后窦性心律下消融与心动过速下消融相比更为简化,长期随访窦性心律维持率无显著差异。
Objective The recurrence of perimitral atrial tachycardia is common after initial ablation of persistent atrial fibrillation （AF）. The aim of the study is to explore a preferable ablation approach for perimitral atrial tachycardia in the redo ablation of persistent AF. Methods Seventy-four patients with perimitral atrial tachycardia after initial ablation for persistent AF were included in our study. Patients were distinguished into either the group of having ablation during tachycardia （Group A） or the group having ablation after cardioversion to sinus rhythm （Group B） according to the different ablation strategies. The procedural endpoints were pulmonary vein isolation and bidirectional conduction block of all the ablated lines. The primary endpoint of the study was freedom from atrial tachyarrhythmia recurrence during the follow-up period. Results There were statistical differences in baseline clinical data between the 2 groups. During the redo procedure, conduction recovery rate across the mitral isthmus （MI）,cavotricuspid isthmus and left atial roofline were 100%, 40.5% and 48.6% respectively. The procedural time, fluoroscopy time, mapping time were longer in the patients of group A. During a mean follow-up of （16.9±6.3） months, 31 （72.1%） patients in group A and 21（67.7%） patients in group B maintained in sinus rhythm in the absence of antiarrhythmic durgs （P =0.771） . Conclusion In patients with perimitral atrial tachycardia after initial ablation for persistent AF,ablation in sinus rhythm is a more simplified method and as effective as ablation during tachycardia.
出处
《中国介入心脏病学杂志》
2017年第8期437-441,共5页
Chinese Journal of Interventional Cardiology
基金
国家自然科学基金项目(81530016
81500270)
关键词
心房颤动
导管消融术
心房扑动
Atrial fibrillation
Catheter ablation
Atrial tachycardia
