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患有长QT综合征1型儿童对水活动的心脏反应
Anna Lundström1, Urban Wiklund2, Annika Winbo1,3
1Department of Clinical Sciences, Pediatrics, Umeå University, Umeå, Sweden.
PloS one
|December 7, 2023
概括
患有长QT综合征1型 (LQT1) 的儿童在水中活动时表现出心率下降的减弱,这表明表交反应受损. 这种自主神经系统失衡可能会增加这些患者的风险.
科学领域:
- 心脏病学 心脏病学
- 自主神经系统研究 自主神经系统研究
- 儿科电子生理学 儿科电子生理学
背景情况:
- 游泳是患有长QT综合征1型 (LQT1) 的患者心律失常的已知触发因素.
- 了解LQT1患者对水活动的自主反应对于风险评估至关重要.
研究的目的:
- 研究自主神经系统 (ANS) 对儿童和青少年诊断为LQT1.1的各种水活动的反应.
- 为了比较LQT1患者的心率 (HR) 和心率变化 (HRV) 与水浸浸期间的健康对照.
主要方法:
- 一项涉及LQT1患者 (接受β抑制剂治疗) 和年龄/性别匹配的健康对照的横截面研究.
- 在面部浸泡 (FI),游泳和全身浸泡 (WBS) 期间记录了心电图 (ECG).
- 分析了HR和HRV (包括高频[HF]和低频[LF]组件),以评估自主调制.
主要成果:
- 与对照组相比,LQT1患者在FI和WBS期间HR的下降明显较小.
- 患有LQT1的患者在水浸之前,水浸期间和水浸后,HRV的总功率 (PTOT),LF和HF组件显著降低.
- 在LQT1组中,在测试的水活动中没有观察到明显的心室节律失常.
结论:
- 与未服用药物的对照组相比,接受β-阻断剂治疗的LQT1患者表现出对水上活动的心率反应减弱.
- 这些发现表明,在儿科和青少年LQT1人群中,副交感神经系统反应受损.
- 在LQT1中异常的ANS反应可能会导致自主失衡,需要在与水有关的活动中仔细考虑.
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