在TMEM43 p.S358L心律失常性心肌病的心电图的特点
Stephen A Duffett1, Chris Compton1, Kieran Vasanthan1
1Division of Cardiology, Faculty of Medicine, Memorial University of Newfoundland, St John's, Newfoundland and Labrador, Canada.
Heart rhythm
|March 22, 2025
概括
在TMEM43 p.S358L心律失常性心肌病 (ACM) 中的心电图 (ECG) 显示QRS延长和V3中的R波损失. 这些心电图变化,包括心室内导电延迟,是关键的诊断指标.
科学领域:
- 心脏病学 心脏病学
- 遗传学 是一个遗传学.
- 医学诊断 医学诊断 医学诊断
背景情况:
- 电心电图 (ECG) 对于诊断心律失常性心肌病 (ACM) 是至关重要的.
- 与TMEM43 p.S358L ACM等遗传变异相关的特定心电图特征需要详细的长期评估.
研究的目的:
- 在患有TMEM43 p.S358L心律失常性心肌病 (ACM) 的患者中识别和描述心电图 (ECG) 特征.
- 分析ECG异常在这个特定的ACM群体中的长期演变.
主要方法:
- 从68名被诊断患有TMEM43 p.S358L ACM.L患者的634个心电图的回顾性分析.
- 对复极化,脱极化,导电间隔,QRS电压和节律异常的评估,在每名患者9次心电图谱的中位数随访期间.
- 长期评估覆盖20.5 ± 8.0年.
主要成果:
- 在男性和女性患者中观察到显著的QRS持续时间延长 (P < .001).
- 在V3中失去R波 (R波进展较差),随后出现心室内导电延迟或左束分支阻塞,发生在61.8%的患者中,在男性中更早.
- 再极化异常和epsilon波很少见;男性 (62.5%) 的终端激活持续时间≥55毫秒是常见的.
结论:
- 在TMEM43 p.S358L ACM中的心电图发现主要以QRS延长和V3.3中的R波损失为特征.
- 在这种情况下,心室内导电延迟或左束分支阻塞的发展是显著的心电图进展.
- 标准复极化标准和epsilon波是不常见的,强调需要在TMEM43 p.S358L ACM中进行特定的ECG模式识别.
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