最长的呼吸暂停持续时间的剂量效应和临床预测导致血液氧气的下降:建立了一个大样本OSA研究,具有34秒和52秒的切断值
Xiaobo Zhou1, Simin Gao2, Ping Zeng2
1Provincial Center for Mental Health, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Sichuan, Chengdu, China.
Frontiers in physiology
|January 22, 2026
概括
在阻塞性睡眠呼吸暂停 (OSA) 患者中,最长的呼吸暂停持续时间 (LAD) 与最低的氧和 (LSaO2) 有显著的相关性. 一个预测模型准确地识别出严重缺氧风险的个体,帮助个性化干预.
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
- 临床数据科学 临床数据科学
背景情况:
- 阻塞性睡眠呼吸暂停 (OSA) 的特点是睡眠期间重复出现上呼吸道崩.
- 呼吸暂停事件导致间歇性缺氧,影响患者的健康.
- 量化呼吸暂停持续时间和氧气脱度之间的关系对于风险分层至关重要.
研究的目的:
- 在OSA患者中,确定最长的呼吸暂停持续时间 (LAD) 和最低的氧和度 (LSaO2) 之间的定量关系.
- 开发和验证一个预测模型,用于识别有显著LSaO2下降风险的患者.
- 根据LAD定义LSaO2的临床值.
主要方法:
- 分析了1716名OSA患者的数据,按疾病严重程度分类.
- 多重线性回归以评估LAD和LSaO2.2之间的剂量反应关系.
- 开发用于LSaO2等级预测的后勤回归模型,使用训练和测试数据集的分割.
主要成果:
- 一秒增加的LAD与0.183%的LSaO2下降有关,即使经过对共变量进行调整.
- 确定了临床值:LSaO2在34.20s LAD下降到85%,在52.07s LAD下降到80%.
- 该预测模型在严重 (AUC=0.93) 和中度至严重 (AUC=0.96) 的LSaO2下降方面表现出高准确度.
结论:
- 这项研究首次量化了LAD-LSaO2关系,并确定了关键的临床值.
- 开发的预测模型准确地识别了有严重缺氧风险的OSA患者.
- 这种工具有助于为OSA提供个性化的患者管理和干预策略.
相关概念视频
Oxygen Transport in the Blood
6.2K
Hemoglobin (Hb) is a crucial molecule in the human body, consisting of four polypeptide chains, each bound to an iron-containing heme group. This unique structure enables hemoglobin to bind to oxygen, with each molecule capable of combining with four molecules of oxygen, leading to rapid and reversible oxygen loading. When fully loaded with oxygen, it is called oxyhemoglobin, while hemoglobin that has released oxygen is called reduced hemoglobin or deoxyhemoglobin. As hemoglobin binds oxygen,...
6.2K
Sleep Apnea
500
Sleep apnea is a condition where breathing stops intermittently during sleep, often leading to significant health issues. Each episode can last from 10 to 20 seconds or more and is frequently accompanied by a brief arousal from sleep. This disturbance, largely unnoticed by the individual, can lead to severe daytime fatigue. Commonly, individuals seek help after being informed by their partners about loud snoring and noticeable breathing pauses during sleep.
The condition is more prevalent among...
The condition is more prevalent among...
500
Decreasing Function
220
A decreasing function describes a relationship where the output consistently declines as the input increases. This means that for any two input values, if one is greater than the other, the corresponding output is smaller. Mathematically, a function f is decreasing on an interval I if for every x1 < x2 in I, f (x1) > f (x2). This type of behavior is visually identified on a graph that slopes downward from left to right.The nature of a function can be analyzed by calculating...
220
Biodiversity and Human Values
16.4K
Human civilization relies on biodiversity in many ways. Sudden changes in species biodiversity result in environmental changes that can modify weather patterns and therefore human civilizations.
16.4K
Professional Values
10.4K
Nurses are responsible for caring for patients during birth, death, illness, and healing. Professional values guide the decisions and actions that nurses make in their careers. If nurses know the decisions and actions to take, providing patients with exceptional care is possible.
The values that are the foundation of the nursing profession are altruism, autonomy, human dignity, and social justice.
First, altruism refers to the concern for the welfare and well-being of others without personal...
The values that are the foundation of the nursing profession are altruism, autonomy, human dignity, and social justice.
First, altruism refers to the concern for the welfare and well-being of others without personal...
10.4K
Critical Values
10.2K
A critical value is a definite value obtained from a particular probability distribution at a predecided confidence level (or a predecided significance level) for a given population parameter. The critical value provides demarcation that separates the sample statistics that are likely to occur from the ones that are unlikely to occur based on the given probability distribution and the population parameter to be estimated. The critical value for normal distribution is obtained from the z...
10.2K


