电图形态复发引导导管切除用于持续性心房的重复切除
Raul D Mitrani1, Ghaith Zaatari1, Jorge Bohorquez2
1Division of Cardiology, University of Miami, 1120 NW 14th St.Clinical Research Building, 1124, 33161, Miami, FL, USA.
概括
电图形态复发 (EMR) 是一种新方法,用于指导先前手术后持续性心房 (PeAF) 的导管切除 (CA). 这种技术在减少复发的PeAF方面表现有前途,改善了患者的治疗结果.
科学领域:
- 心脏病学 心脏病学
- 电力生理学 电力生理学
- 医疗技术 医疗技术 医学技术
背景情况:
- 在导管切除 (CA) 失败后,对于持续性心房动 (PeAF) 缺乏标准化的绘制技术.
- 需要新的方法来有效指导重复除程序.
研究的目的:
- 评估使用电图形态复发 (EMR) 来指导PeAF患者的CA的可行性.
- 评估EMR指导性除在减少AF复发中的有效性.
主要方法:
- 十名患有复发性PeAF后CA的患者使用PentaRay和CARTO系统进行了详细的心房映射.
- 定制软件计算了电图的复发率和周期长度 (CLR),以识别切除目标.
- 废弃策略是根据CLR最短和高复发率 (≥80%) 的地点进行的.
主要成果:
- 在10名患者中,EMR在6名患者中确定了目标部位.
- 接受EMR指导CA的患者的复发PeAF发生率显著降低 (1/6) 与未使用该方法指导的患者相比 (4/4) (p=0.048).
- 在9名患者中观察到肺静脉重新连接.
结论:
- 电图形态复发 (EMR) 是一种可行和新的技术,用于引导持续性心房的CA.
- 以EMR指导的切除显示出在选择患者群体中改善临床结果的潜力.
- 进一步的研究是有必要的,以完善EMR针对除策略的目标.
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