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扩展性心肌病中的跨壁膜激活间隔:用于内壁静脉基的新绘图工具
Saif Abdel-Kafi1, Sebastiaan R D Piers1, Augusto Meretta1
1Willem Einthoven Center for Cardiac Arrhythmia Research and Management, Department of Cardiology, Leiden University Medical Center, Leiden, the Netherlands.
JACC. Clinical electrophysiology
|February 13, 2026
概括
在鼻节律期间的跨村激活延迟有效地识别了腹腔动脉障碍 (VT) 的基质,在患有扩张性心肌病 (DCM) 的患者. 这种新的映射工具有助于精确定位静脉瘤切除部位在内壁基质.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 医疗成像医学成像
背景情况:
- 扩张性心肌病 (DCM) 经常呈现出源于深层室内基质的室内心力衰竭 (VT).
- 识别这些内基质对于成功的静脉瘤切除至关重要.
研究的目的:
- 为了确定在鼻节律期间的跨线性激活是否可以在非缺血性DCM中识别VT基质.
- 为了评估跨壁激活区间 (TAI) 在绘制这些基质的有效性.
主要方法:
- 电生理学映射在DCM患者进行,DCM患者接受静脉管切除.
- 计算了跨村激活区间 (TAI),并定义了跨村激活延迟 (TAD).
- 评估了关键地峡位点 (CIS) 和VT相关位点 (VRS) 与TAD,晚期加多增强和低单极电压区域的空间关系.
主要成果:
- 患有TAD的区域覆盖了一个小的上心表面 (7.7%),但含有高百分比的CIS (95%) 和VRS (82%).
- 晚期加多增强和低单极电压区域也与CIS和VRS显著重叠,但TAD更具体.
- TAI分析提供了一种电压独立的基板识别方法.
结论:
- 跨壁的激活间隔是一种用于识别DCM内壁VT基质的新工具.
- 这种方法可以通过更好地定位关键除部位来提高静脉除的精度.
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