摘要
目的探讨EnSite NavX标测系统和Lasso指导环肺静脉左房线性消融电隔离治疗心房颤动(房颤)的疗效。方法阵发性房颤14例和持续性房颤3例,采用EnSite NavX标测系统和Lasso进行环肺静脉左房线性消融,消融终点为肺静脉电隔离。结果17例均达消融终点,手术时间(226.1±36.2)min、X线曝光时间(41.3±12.8)min、放电时间(61.9±15.4)min。术后60 d有2例复发,1例再次消融成功。随访4～30个月,14例(82.3%)无房颤发作,3例(17.7%)复发,但发作次数及时间均较术前明显减少,用胺碘酮(术前治疗无效)可控制。术中及随访期无任何与操作相关的并发症。结论EnSite NavX标测系统和Lasso指导环肺静脉线性消融治疗房颤有效、安全。
Objective To study the effectiveness of left atrial circumferential ablation of pulmonary veins for atrial fibrillation（AF） guided by EnSite NavX mapping system, and circle mapping catheter （Lasso）. Methods Seventeen patients with paroxysmal or persistent AF were included. Real time 3-dimensional left artial（LA） and pulmonary veins（PVs） maps were constructed through EnSite-NavX mapping system, and Lasso. Isolation of pulmonary veins was performed by encircle the left and right side PVs at a distance of 1 to 2 cm away from the ostium of PVs. Results Seventeen patients all reached the endpoint of ablation completely. The mean procedure time and fluoroscopy time were （226.1 ± 36.2） minutes and （41.3±12.8） minutes, respectively. Mean radiofrequency energy delivery time was （61.9 ± 15.4） minutes. After 60 days, recurrence of AF occurred in two patients, of whom one received a repeat ablation successfully. During 4~30 months of follow-up, fourteen patients （82.3 %） were free of AF without any antiarrhythmic drugs. Recurrence of AF occurred in three （17.7%） patients with less times and duration of attack and effectively controlled by amiodarone. No complications occurred during the procedure and the follow-up period. Conclusion Pulmonary veins circumferential linear ablation of atrial fibrillation guided by EnSite- NavX mapping system and Lasso is effective and safe.
出处
《江苏医药》
CAS
CSCD
北大核心
2008年第10期977-979,F0002,共4页
Jiangsu Medical Journal
基金
泰州市社会发展课题(TS0503)
关键词
心房颤动
导管消融术
肺静脉
Atrial fibrillation
Catheter ablation
Pulmonary veins
