在Takotsubo综合征中,电机窗和自发性心室节律失常症
Ariel Banai1, Rachel Retsky2, Lior Lupu1
1Tel-Aviv Sourasky Medical Center Affiliated to the Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Cardiology Division, Tel-Aviv Sourasky Medical Center Affiliated to the Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
The American journal of cardiology
|April 29, 2024
概括
电子机械窗口 (EMW) 在塔科苏博综合征 (TTS) 患者中通常是负面的,并且与心室动脉节律失常症的更高风险有关. 这一发现表明EMW可能有助于对TTS患者的风险分层.
科学领域:
- 心脏病学 心脏病学
- 电子生理学 电子生理学
- 心肌病是一种心肌病.
背景情况:
- 塔科特苏博综合征 (TTS) 通常表现为QT间隔延长.
- 然而,只有很少一部分TTS患者会发生心室动脉节律失常症.
- 对于TTS中这些危险心律失常的预测因素仍然不完全理解.
研究的目的:
- 在被诊断为TTS的患者中描述机电窗口 (EMW).
- 调查EMW与TTS患者腹腔动脉节律失常的发生之间的关联.
主要方法:
- 84名住院TTS患者 (2013-2022) 的回顾性分析.
- 综合性心声回声评估,包括EMW的计算.
- 通过减去QT间隔从QRS开始到大动脉关闭来得出的EMW.
- 在患有和没有腹腔动脉节律失常症的患者中,EMW的比较.
主要成果:
- 在96%的TTS患者中,EMW是负的 (平均EMW: -69 ± 50 ms).
- 患有腹腔动脉节律失常的患者的EMW显著更为负 (-133 ± 23毫秒对比 -63 ± 48毫秒,p=0.001).
- 在多变量分析中,EMW是心室动脉节律失常的显著独立预测因子,并且在预测这些事件时表现优于纠正的QT间隔 (AUC:0.89对0.77).
结论:
- 在Takotsubo综合征患者中,机电窗口主要是负的.
- 更负的EMW与TTS中心室动脉节律失常的风险增加有关.
- 在TTS患者中,EMW显示出作为一种有价值的风险分层工具的潜力.
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