在早产婴儿中,间歇性缺氧改变了自主心血管控制
Alicia K Yee1, Marisha Shetty1, Leon S Siriwardhana1
1Department of Paediatrics, Monash University, Melbourne, Victoria, Australia.
Acta paediatrica (Oslo, Norway : 1992)
|August 30, 2023
概括
在早产婴儿中,短暂的呼吸暂停和周期性呼吸会改变自主心血管控制. 这会影响他们的整体健康,并可能使呼吸系统问题恶化.
科学领域:
- 新生儿生理学 新生儿生理学
- 自主神经系统功能自主神经系统功能
- 调节心血管系统的调节
背景情况:
- 过早出生的婴儿往往会出现呼吸不规则,如呼吸暂停和周期性呼吸.
- 动物研究表明,定期呼吸的反复缺氧会破坏自主控制.
- 这些呼吸事件对早产婴儿自主控制的影响需要进一步研究.
研究的目的:
- 为了研究呼吸暂停和周期性呼吸之间的联系,以及非常早产婴儿的自主控制变化.
- 用心率变化 (HRV) 参数来评估自主控制.
- 为了确定呼吸系统障碍是否会加剧自主控制改变的后果.
主要方法:
- 对40名非常早产婴儿 (34.3周的月经后年龄) 进行了多梦摄影.
- 计算了心率变化 (HRV) 参数,包括总功率,低频 (LF),高频 (HF) 和LF/HF比率.
- 婴儿根据在活跃睡眠 (AS) 和安静睡眠 (QS) 中经历呼吸事件的时间进行分类.
主要成果:
- 在主动睡眠 (AS) 中,患有更多呼吸事件的婴儿显示出明显更高的总功率和HF功率.
- 在AS期间,除呼吸事件外,高事件组的总和HF功率较高,但LF功率和LF/HF比率较低.
- 在安静睡眠 (QS) 期间,群体之间没有观察到HRV参数的显著差异.
结论:
- 这项研究提供了新的证据,将短暂的呼吸暂停,特别是定期呼吸,与早产婴儿的自主心血管控制改变联系起来.
- 定期呼吸,在新生儿病房经常没有被检测到,可能会显著影响心血管调节.
- 这些发现强调了监测和潜在地解决早产新生儿呼吸事件的重要性,以支持自主功能.
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