一个案例报告:电子调制相关的T波过度感应在左捆分支节奏之后
Linlin Li1, Manxin Lin1, Jincun Guo1
1Division of Cardiology, Xiamen Cardiovascular Hospital, Xiamen University, Xiamen, Fujian, China.
概括
在心力衰竭患者中,左束枝节奏 (LBBP) 导致T波过度传感. 调整心室后心房耐火期 (PVARP) 解决了这个节奏问题.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 医疗器械 医疗器械
背景情况:
- 扩展性心肌病与减少喷射分数 (EF) 和完整的左捆分支阻塞 (CLBBB) 经常需要心脏再同步治疗 (CRT).
- 左捆枝节奏 (LBBP) 是一种提供生理心室激活的替代CRT技术.
- T波过度传感可能是心室节奏的并发症,可能导致不适当的节奏抑制.
研究的目的:
- 在成功植入左束枝节奏 (LBBP) 后报告T波超感应的情况.
- 在这个特定的临床场景中调查T波超感应的潜在原因.
- 展示一种有效的方法来管理LBBP后的T波超传感.
主要方法:
- 一名66岁的男性患有扩张性心肌病,EF 32%,CLBBB经历了成功的CRT-D与LBBP的植入.
- 在6周的随访期内,心电图 (ECG) 监测显示,由于T波过度传感,鼻腔节律与间歇性心室节奏 (比率2: 1) 发生.
- 缩短了心室后心房耐火期 (PVARP),以解决过度传感并恢复适当的心房跟踪.
主要成果:
- 证实了成功的LBBP植入.
- 确定T波过度传感是间歇性心室节奏的原因.
- 缩短PVARP有效地消除了T波过度传感,并恢复了1:1的心房导电.
- 观察到的T波形态变化随着时间的推移逐渐改善.
结论:
- T波过度传感是LBBP的潜在并发症,可能受到T波形态变化和ICD传感参数的影响.
- 调整PVARP是管理LBBP患者T波过敏的有效策略.
- 这一案例凸显了在接受LBBP的患者中仔细解释心电图和设备编程的重要性.
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