患有1型肌性缩症的患者的心室刺激可能无法预测未来的心室心律不整
Lukasz Cerbin1, Amneet Sandhu1,2, Michael Rosenberg1
1Division of Cardiology, University of Colorado Anschutz Medical Campus, Aurora, Colorado.
Heart rhythm O2
|November 11, 2024
概括
电生理学研究 (EPS) 室腔刺激 (v-stim) 在1型肌性衰竭 (DM1) 患者中没有预测室腔失常 (VAs). 大多数患有VA的DM1患者在EPS期间有负的v-stim结果.
科学领域:
- 心脏病学 心脏病学
- 神经肌肉疾病 神经肌肉疾病
- 电子生理学 电子生理学
背景情况:
- 肌性失常症1型 (DM1) 与渐进的导电疾病和心室失常症 (VAs) 的风险增加有关.
- 对于风险分层的DM1患者,建议对VA进行电生理学研究 (EPS) (IIb),但其预测效用尚未证明.
- 在DM1患者中预测VA仍然具有挑战性,需要进一步研究风险分层方法.
研究的目的:
- 根据EPS期间的阳性和阴性心室刺激 (v-stim) 结果调查DM1患者的自然史.
- 为了确定EPS期间的v-stim是否可以预测DM1患者中VA的发展.
- 为了评估DM1患者经过EPS与v-stim的长期结果.
主要方法:
- 追溯识别2008年至今期间与v-stim一起接受EPS的DM1患者.
- 对v-stim协议的分析,包括持续或血液动力学显著的腹腔动脉动脉 (VT) 诱导.
- 对患者随访数据,设备植入状态和持续静脉瘤发生情况的审查.
主要成果:
- 在26名DM1患者中,有4名患者 (2008-2022) 在EPS期间获得了积极的v-stim结果,其中VT是由外刺激引起的.
- 大多数患者 (22/26) 接受了心脏器械,包括起器和ICD.
- 在平均5.7年的随访期间,7名患者患有持续静脉,其中6名患者的v-stim结果为负;只有4名v-stim结果为正的1名患者患有静脉.
结论:
- 在DM1患者的电生理学研究 (EPS) 中,心室刺激 (v-stim) 不能预测临床心室失常 (VAs) 的发生.
- 大多数经历了VA的DM1患者的v-stim结果是负的,这表明预测价值有限.
- 基线QT间隔是患者和没有随后的静脉瘤之间唯一显著不同的特征.
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