心脏电解剖标测系统对心律失常的标测和消融是国际上电生理领域中热点,并在临床上取得很好的治疗效果,将射频消融技术推向更深、更高的层次,临床应用中已显示出明显的优越性。但心脏电解剖标测系统须逐点标测,较费时,且标测导管价格较贵,我们认为普通室上性心动过速患者,不适宜首选心脏电解剖标测系统进行消融,但对于在复发、疑难房室结双径路和旁道及房性、室性心律失常病例,尤其有心内结构异常时,心脏电解剖标测系统对靶点消融有很大指导作用。CARTO系统功能较为完善,通过CartoMerge技术可更准确和全面地展示心脏的解剖结构,提高导航精确性,增加手术的安全性及成功率。非接触标测系统EnSite Array对非持续性、血流动力学不能耐受的心动过速及不稳定的心律失常具有独特的优势。但心脏电解剖标测系统需要手动操作,需要术者屈伸及旋转导管到达目标解剖位置进行定位消融,不仅操作难度大,而且学习曲线较长,依然会对医师和患者造成放射性损伤。近年来新出现的磁导航指导下的电生理消融导管以及机械手操控的消融设备,将以往复杂的导管操控技术简单、直观化,可自动引导导管到达一些人工操作时难以到达的部位,消融疗效可靠,同时缩短医师消融手术的学习曲线。临床研究已初步显示了这些系统的可行性,可能是未来导管消融发展的方向之一。
(胡和生)
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