CARTO电解剖标测指导右室流出道图形室性早搏的射频消融治疗

目的:评价CARTO电解剖标测系统指导消融治疗右室流出道图形室性早搏的临床应用价值。方法:应用CARTO电解剖标测系统在相关心室进行标测,构建心室三维电激动图并指导消融,治疗22例药物治疗无效、非器质性心脏病患者频发右室流出道图形室性早搏(常规心电图QRS波呈完全性左束支阻滞图形,Ⅱ、Ⅲ、avF呈高幅R形态)(右心室室性早搏19例,左心室室性早搏3例)。患者在术前、术后分别填写SF-36调查表,观察术前、术后患者一般健康状况、生理功能等,并进行评分、统计分析。结果:22例患者均消融成功,放电次数(2.6±1.2)次。术前室性早搏总数(17932±3816)个/24 h,术后(13±6)个/24 h,患者症状消失。患者整体的生活质量明显提高。结论:应用CARTO电解剖标测系统标测和消融经药物治疗无效而症状明显的右室流出道图形室性早搏,可实时重建心腔三维结构,定位准确可靠,安全高效,并能显著改善患者的生活质量。

Radiofrequency ablation of premature ventricular contractions with ECG like originating from the right ventricular outflow tract guided by CARTO

AIM: To assess the clinical efficacy of electro-anatomically guided mapping and radiofrequency ablation under CARTO system for frequent premature ventricularcontraction.METHODS: The CARTO electro-anatomical mapping system displays real time three dimensional chamber structure with electrical information related to signal mplitude and activation time.22 patients with Drug refractory and frequent premature ventricular contractions were ablated under CARTO system.By preoperative and postoperative SF-36,the gen...