在神经介导昏迷的倾斜表测试中,孤立的非常低的QRS电压的预测值
Haichao Chen1, Yiwei Cao2, Lei Liang1,3
1Department of Cardiology, Shaanxi Provincial People's Hospital, Xi'an, China.
SAGE open medicine
|August 29, 2024
概括
在前导线中孤立的非常低的QRS电压可以预测神经介导的. 这种心电图的发现是评估昏迷患者在倾斜表测试期间的宝贵工具.
科学领域:
- 心脏病学 心脏病学
- 临床电生理学 临床电生理学
背景情况:
- 昏迷诊断通常依赖于临床表现.
- 电心电图 (ECG) 在诊断神经介导性 (NMS) 的实用性尚未得到充分探索.
研究的目的:
- 评估孤立的非常低的QRS电压在ECG上的预测价值,以对中国患者的阳性倾斜表测试,怀疑NMS.
主要方法:
- 回顾性研究涉嫌NMS的患者接受倾斜表测试.
- 进行了心电图和心声回声.
- 隔离的非常低的QRS电压定义为0.3mV (额头导线) 或0.7mV (心前导线).
主要成果:
- 呈阳性倾斜表测试的患者在正面导线中显示出显著更多孤立的非常低的QRS电压 (p<0.001).
- 阳性和阴性倾斜表组之间在先验隔离的非常低的QRS电压中没有显著差异 (p=0.289).
- 隔离非常低的QRS电压的额头具有84.08%的灵敏度和74.38%的特异性,用于积极的倾斜表反应 (AUC=0.806).
结论:
- 在前导线中孤立的非常低的QRS电压预测了可疑NMS的积极倾斜表测试.
- 这种心电图参数可以帮助评估昏迷患者.
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