相关实验视频
Updated: Sep 12, 2025

A Model to Simulate Clinically Relevant Hypoxia in Humans
Published on: December 22, 2016
与呼吸系统事件相关的脉冲过渡时间下降率预测阻塞性睡眠呼吸暂停中左心室损伤
Ning Ding1, Biao Xue2, Guihong Wei3
1Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu, PR China.
在呼吸事件期间高脉冲过渡时间 (PTT) 跌幅可以预测阻塞性睡眠呼吸暂停 (OSA) 患者的左心室 (LV) 损伤. 这一发现有助于分层划分血管和心脏功能障碍的风险.
科学领域:
- 心脏病学 心脏病学
- 睡眠医学 睡眠医学
- 生物医学工程 生物医学工程
背景情况:
- 阻塞性睡眠呼吸暂停 (OSA) 与心血管并发症有关.
- 脉冲过渡时间 (PTT) 测量血管弹性.
- 在OSA中预测左心室 (LV) 损伤对于早期干预至关重要.
研究的目的:
- 调查与呼吸事件相关的PTT指标是否可以预测OSA患者的LV损伤.
- 评估PTT下降率对LV缩 (LVH) 和扩张功能障碍 (LVDD) 的预测值.
主要方法:
- 对517名OSA患者没有先前的LV损伤的回顾性研究.
- 通过心声学和血液检查评估LV损伤.
- 呼吸事件相关的PTT指标使用多睡眠学测量;用于分析的Cox模型和ROC曲线.
主要成果:
- 高的PTT下降率与LVH和LVDD风险增加有关.
- 位于PTT下降率最高四分之一的患者对LVH和LVDD的危险比率明显更高.
- 与传统指标相比,PTT下降率对LVDD的预测准确度更高.
结论:
- 与呼吸事件相关的高PTT下降率可能表明血管过活.
- 这一指标可以帮助分层的风险发展的OSA患者的LV损伤.
- 进一步的研究可能会将PTT整合到OSA管理协议中.
更多相关视频
04:20Integration of Brain Tissue Saturation Monitoring in Cardiopulmonary Exercise Testing in Patients with Heart Failure
Published on: October 1, 2019
04:53Author Spotlight: Traditional Chinese Medicine for Sleep Disorders in Acute COPD — A Safe, Cost-Effective Approach
Published on: October 18, 2024
相关概念视频
Respiratory Volumes and Capacities I
Special considerations while measuring oxygen saturation
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
Physical Assessment of the Respiratory Tract II: Inspection
Chest Configuration
The chest configuration...
Assessment of Ventilation I: Respiratory Rate
A Ventilation assessment is critical for monitoring a patient's health status. Respiration, one of the most accessible vital signs, provides insights into the function of numerous body systems and can indicate serious health issues, such as brainstem injuries from head trauma.
Critical Guidelines for Assessing Ventilation:
Assessment of Ventilation II: Respiratory Depth and Rhythm
Respiratory depth measures the volume of air inhaled or exhaled during a breath. It can vary from shallow to deep and typically remains consistent when a person is at rest or asleep. Occasionally, individuals will automatically inhale deeply, known as sighing, which inflates the lungs with more air than normal breathing.
To assess respiratory depth, observe the degree of chest excursion or movement:
Sleep Apnea
The condition is more prevalent among...