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研究类型和睡眠测量对氧气脱度指数计算的影响
Carley B Whenn1,2, Danielle L Wilson1,2, Warren R Ruehland1,2
1Department of Respiratory and Sleep Medicine, Austin Health, Heidelberg, Australia.
概括
排除在清醒时期的氧气不和和使用监测时间而不是睡眠时间显著降低氧气不和指数 (ODI),可能低估睡眠呼吸暂停的严重程度. 为了可靠的诊断,需要标准化.
科学领域:
- 睡眠医学 睡眠医学
- 呼吸系统生理学 呼吸系统生理学
背景情况:
- 氧气脱度指数 (ODI) 对于通过多睡眠学 (PSG) 诊断睡眠呼吸障碍至关重要.
- 目前的指导方针缺乏关于在ODI计算中包括醒时期的脱度的明确性.
- PSG衍生的ODI和家庭睡眠呼吸暂停测试 (HSAT) ODI之间的差异阻碍了可靠的临床决策.
研究的目的:
- 为了比较使用所有脱度计算的ODI与排除PSG中醒期期间的脱度.
- 将来自PSG的ODI与来自HSAT的ODI进行比较.
主要方法:
- 对阻塞性睡眠呼吸暂停连续100次PSG的分析.
- 计算ODI包括所有脱度 (ODIall) 和不包括在清醒时期的脱度 (ODIsleep).
- 将ODIall与使用监测时间的ODI (ODIHSAT) 进行比较.
主要成果:
- ODI睡眠明显低于ODI所有 (中位数差异: -3.9事件/小时,21.0%的减少).
- 在ODIsleep和ODIall之间的差异随着ODI值较高和睡眠效率较低而增加.
- ODIHSAT也低于ODIall (中位数减少:每小时4.5个事件,21.6%).
结论:
- 除了醒期脱和使用监测时间来计算ODI,可以低估疾病的严重程度.
- 基于计算方法和研究类型,ODI存在显著的变化.
- 标准化ODI计算对于一致的睡眠呼吸暂停诊断和治疗至关重要.
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