带有左心室插入的反转性心力衰竭:来自高密度映射的见解
Cheng-Han Chan1,2,3, Chin-Yu Lin1,2,3
1Heart Rhythm Center and Cardiovascular Center, Taipei Veterans General Hospital, Taipei, Taiwan.
Pacing and clinical electrophysiology : PACE
|December 31, 2025
概括
鉴定了一种罕见的节节回流动性心力衰竭 (NVRT) 病例,其左心室插入与典型的心房节节回流动性心力衰竭 (AVNRT) 并存. 射频除成功治疗了这两种心律失常,在复杂的心跳动病例中强调了准确的诊断.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 心脏节律失常症 心脏节律失常症
背景情况:
- 腹性上心室性心力衰竭 (PSVT) 是一种常见的心律失常.
- 心房节点回流性心跳动脉 (AVNRT) 和节节节点回流性心跳动脉 (NVRT) 是心脏导电系统中的不同的回流电路.
- 区分各种各样的上心室高心率,特别是具有广泛QRS复合体的高心率,可能是具有挑战性的.
研究的目的:
- 报告一个典型的缓慢快速AVNRT和NVRT共存的独特案例.
- 突出诊断挑战和成功管理一个不寻常的NV路径与左心室插入.
- 强调精确区分AVNRT与异常,心室性心力衰竭和辅助路径介导心力衰竭之间的重要性.
主要方法:
- 电生理学研究 (EPS) 在一个38岁的男性中进行,他有PSVT病史.
- 使用高密度映射和节拍机动来表征心跳动脉回路.
- 射频 (RF) 除针对的是AV节点的缓慢通路区域.
主要成果:
- 诱导一个广泛复杂的心力衰竭与左捆分支块 (LBBB) 形态和V2过渡,展现心室-心房 (VA) 分离,暗示一个AV节点-心室重入电路.
- 在左心室隔膜 (LV) 插入部位的NVRT诊断,与典型的AVNRT共存.
- 在缓慢通路区域进行射频切除后,成功消除了两种心律失常.
结论:
- 这种情况表明,LV插入具有不寻常的NV通路,有助于复杂的脑膜上性心跳动.
- 准确的诊断对于有效的治疗至关重要,特别是在区分AVNRT与异常或VT与辅助途径介导的心动力障碍时.
- 针对缓慢通路的射频切除是一种有效的治疗方法,用于共存的AVNRT和NVRT.
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