陈太波,高鹏,程中伟,邓华,程康安,方全

• 1:中国医学科学院北京协和医学院北京协和医院心内科

摘要(Abstract)：

目的探讨PaSO起搏标测软件(CARTO3,美国强生公司)在右心室流出道(RVOT)室性期前收缩(PVC)射频消融治疗中的应用价值。方法回顾性分析2016年1月至2016年8月于北京协和医院接受射频消融治疗的RVOT PVC患者共21例,入选患者同时行激动标测和PaSO起搏标测。将激动标测最早点定义为A点,PaSO起搏标测相似度软件评分最优点定义为B点,消融有效点定义为C点。比较两种标测方法指导RVOT PVC射频消融治疗的准确度。结果患者术中激动标测取点数为(11.0±5.0)个,激动顺序标测显示最早激动部位电位提前体表QRS时限15～36 ms(27.3±5.6)ms。PaSO起搏标测取点数为(10.0±5.0)个,起搏标测最优点与自发PVC QRS相似度为94.3%～99.2%[(97.4±1.5)%]。激动标测和PaSO起搏标测在判断PVC内膜靶点上比较,差异无统计学意义[AC间距(5.9±3.1)mm比BC间距(5.1±2.7)mm,P=0.320]。激动标测最早点与PaSO起搏标测最优点之间的中位距离为7.7(2.6,16.7)mm。结论 PaSO自动匹配起搏标测软件指导RVOT PVC射频消融靶点的准确度不劣于激动标测。基于自动匹配运算的PaSO起搏标测软件不受术中PVC负荷的限制,可以客观、准确、快速地定位PVC起源点,从而实现PVC精准消融。

关键词(KeyWords)： 起搏标测;室性期前收缩;右心室流出道;射频消融

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 陈太波,高鹏,程中伟,邓华,程康安,方全

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