下位法低能量慢径消融治疗房室结折返性心动过速的评价  

Evaluation of lower approach and low energy slowpath way radiofrequency catheter ablation(RFCA) on atrioventricular nodal reentrant tachycardia(AVNRT)

作　　者：程自平[1] 徐岩[1] 许邦龙[1] 朱润硕[1] 陈斌[1] 王邦宁[1] 郑琳琳[1] 骆志刚[1] 

机构地区：[1]安徽医科大学第一附属医院心内科,合肥230022

出　　处：《安徽医科大学学报》2002年第4期295-296,共2页Acta Universitatis Medicinalis Anhui

摘　　要：目的　探讨射频消融房室结慢径能量、房室传导阻滞发生率 ,手术成功率和复发率。方法　自 2 0 0 0年 3月～2 0 0 2年 1月对 2 6例频发房室结折返性心动过速患者采用下位法消融。能量从 10W开始 ,无效则按每 5W逐渐递增 ,限定最大能量为 35W进行消融慢径改良房室结功能。结果　 2 6例患者全部手术成功 ,释放能量 10～ 35W ,平均2 4 5W± 7 4W。术中 2例出现一过性房室传导阻滞 ,中止消融后消失。术后 3～ 2 0个月随访 ,无 1例发生房室传导阻滞 ,术后 2例复发 ,经再次消融慢径成功。结论　采用低能量下位法消融慢径改良房室结功能 ,疗效满意 ,安全可靠 ,并发症少。Objective To investigate optimal quantity of radiofre quency energy for low approach and low energy slow path RFCA, the occurrences of atrioventricular block and the rate of success or reoccurrence of the procedure. Methods 26 patients with AVNRT underwent the RFCA with an increasing energy starting from low an internal of 5W to 35 W. Results The method all succeeded at an average energy of 24 5 W±7 4 W. Atrioventr icular block occurred in 2cases and disappeared instantly on the stop of ablation. Reoccurence happened in 2 cases. No atrioventricular block was present during 3～20 months after operation. Conclusion RFCA and low energy is an effective and reliable procedure with few complication .

关 键 词：心动过速 房室结折返性 导管消融术 治疗 

分 类 号：R541.710.5[医药卫生—心血管疾病]