高频区域作为辅助路径切除的电生理学线索:与峰值频率映射的空间分离的特征
Takashige Sakio1, Takashi Kanda2, Hitoshi Minamiguchi2
1Cardiovascular Division, Osaka Keisatsu Hospital, Osaka, Japan.
Heart rhythm
|February 8, 2026
概括
全极技术近场测绘揭示了与成功的辅助途径切除部位相邻但与之不同的高频区域. 这种空间差异为精确的导管切除心房回流性心跳动提供了一个新的目标.
科学领域:
- 电力生理学 电力生理学
- 心脏节律失常映射 心脏节律失常映射
背景情况:
- 导管切除 (CA) 是由于辅助通路 (APs) 的心房回流性心力衰竭 (AVRT) 的治愈治疗方法.
- 精确地定位AP可以具有传统的绘图技术具有挑战性.
- 全极近场技术 (OTNF) 提供了新的频率分析,但其用于AP切除的临床应用尚未得到证实.
研究的目的:
- 调查OTNF峰值频率地图识别的高频区域与成功的AP剥离地点之间的空间关系.
- 为了确定OTNF是否可以在导管切除过程中提高AP局部化的精度.
主要方法:
- 对33名接受AVRT.CA成功治疗的患者的OTNF数据的回顾性分析.
- 对获得的开放窗口映射数据的离线峰值频率 (PF) 分析.
- 测量了除部位的PF,附近的最高PF,空间距离和方向移位.
主要成果:
- 成功的切除部位位于高频区域 (平均332 ± 206 Hz),但绝对最高的PF是相邻的 (平均435 ± 56 Hz;p < 0.01).
- 最高的PF位点在空间上从成功切除位点被平均4毫米 (IQR:0-6毫米) 位移.
- 方向分析显示,在64%的案例中共定位,在27%的案例中逆时针转移,在9%的案例中顺时针转移.
结论:
- 在OTNF地图上,高频区域始终与成功的AP剥离场所相邻,但在空间上与之不同.
- 这种可量化的空间分离是一种新的电生理学目标.
- OTNF映射可以提高AP导管切除AVRT的精度和效率.
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