摘要
目的:观察单导管射频消融治疗右室流出道室性期前收缩(室性早搏,室早)的安全性和临床效果。方法:经常规体检、生化检查、X线胸片、心脏彩超、长程心电图等各种检查后,入选65例患者,采用温控消融导管以起搏为主的方法进行标测,并对单导管射频消融的安全性和临床效果进行总结。结果:消融即刻成功率97%(63/65),其中2例放弃消融术;随访15～40个月,有3例复发并再次手术,成功2例,总成功率为95%(62/65),无复发。电生理检测和消融时间:(50±27)min;曝光时间:(8.1±3.8)min,所有患者术中及术后均未发生消融相关并发症。结论:单导管射频消融治疗右室流出道室早安全有效,并能减少消融操作及X线暴露时间。
AIM：To assess the clinical effects of ablation of premature ventricular contractions （PVCs） in right ventricular outflow tract （RVOT） using a single catheter electrode. METHODS： Single catheter technique for radiofrequency catheter ablation （RFCA） was performed in 65 consecutive patients with severe symptomatic monomorphic PVCs originating within the RVOT. A 7-Fr, 4-mm-tip catheter was used for both mapping and ablation. Target sites were localized by pace mapping. Pace mapping demonstrated identical QRS complex configurations during pacing and during arrhythmia in at least 11 leads. RESULTS： Acute ablation success was achieved in 63/65 patients （96.9%）. During the follow-up of （28±13） months, recurrence and reablation were done in three patients （4.6%）. Two of these patients remained arrhythmia-free. Surgical time was （50±27） min, and fluoroscopy time was （8.1±3.8） min. No ablation-related complications occurred during the follow-up of 15-40 months. CONCLUSIONS： Single catheter technique is safe and effective for mapping and ablation of PVCs from RVOT.
出处
《心脏杂志》
CAS
2011年第5期601-603,612,共4页
Chinese Heart Journal
基金
国家自然科学基金项目资助(30700312)
湖北省"十一五"重大科技攻关项目资助(2006A301A04)
湖北省自然科学基金优秀群体项目资助(2007ABC011)
武汉大学"211工程"建设项目资助
关键词
期前收缩
室性
射频消融
右室流出道
premature ventricular contractions
radiofrequency catheter ablation
right ventricular out-flow tract
