睡眠呼吸暂停中的QT变化和心肌复极化:对心脏风险的影响
Aleksandra Jarecka-Dobroń1, Wojciech Braksator1, Paweł Chrom2
1Department of Sports Cardiology and Noninvasive Cardiac Imaging, Medical University of Warsaw, Brodnowski Hospital, Warsaw, Poland.
Advances in medical sciences
|July 28, 2025
概括
阻塞性睡眠呼吸暂停 (OSA) 损害心肌细胞再极化,增加心脏风险. 这种障碍的严重程度与睡眠呼吸障碍和低氧化症相关,突显了需要OSA管理的必要性.
科学领域:
- 心脏病学 心脏病学
- 睡眠医学 睡眠医学
- 身体生理学 身体生理学
背景情况:
- 阻塞性睡眠呼吸暂停 (OSA) 与心脏突然死亡的风险增加有关.
- 心肌再极化稳定性,通过纠正的QT间隔 (QTc) 和其变异性 (QTV,QTVi) 来评估,对心脏健康至关重要.
研究的目的:
- 评估心肌复极化稳定性在患有内脏肥胖和OSA的个体中的ECG参数.
- 具体来说,要评估纠正的QT间隔 (QTc) 和其变化 (QTV,QTVi) 与OSA严重程度的关系.
主要方法:
- 187名患有内脏肥胖的健康志愿者 (年龄在35-65岁) 接受了同时的霍尔特心电图和测谎仪.
- 根据呼吸事件指数 (REI) 的严重程度,参与者被分为三组.
- 在OSA阳性和阴性组之间以及OSA严重程度之间进行了QTc,QTV和QTVi的比较.
主要成果:
- 在OSA组中,QTV和QTVi显著更高 (p < 0.001).
- 在REI和QTcmax (p = 0.004) 之间,以及在缺氧参数和QTcmax之间观察到正相关性.
- 与正常呼吸相比,OSA患者的呼吸事件期间QTcmax和QTVi显著增加.
结论:
- 在患有OSA的患者中,心肌细胞再极化受损.
- 再极化障碍的程度与睡眠相关的呼吸障碍和相关的低氧化症的严重程度直接相关.
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