相关实验视频
Updated: Jun 29, 2025
09:54
A Model to Simulate Clinically Relevant Hypoxia in Humans
Published on: December 22, 2016
8.8K
在阻塞性睡眠呼吸暂停患者中分析心率变化,这些患者有白天的嗜睡
Seren Ucak1, Hasthi U Dissanayake1,2, Philip de Chazal1,3
1Charles Perkins Centre and Northern Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia.
Sleep
|March 26, 2024
概括
患有阻塞性睡眠呼吸暂停 (OSA) 的睡眠患者表现出心率变化率 (HRV) 降低,表明心血管疾病风险增加. 这表明在昏昏欲睡的OSA患者中,特别是那些患有中度至重度OSA的患者中,有寄生交感性戒断.
科学领域:
- 心脏病学 心脏病学
- 睡眠医学 睡眠医学
- 自主神经科学 自主神经科学
背景情况:
- 阻塞性睡眠呼吸暂停 (OSA) 与心血管疾病 (CVD) 有关.
- 嗜睡是一种常见的OSA症状,但其对心血管疾病风险的具体影响尚未完全理解.
- 心率变化 (HRV) 分析可以评估心脏自主功能.
研究的目的:
- 通过HRV分析,研究睡眠与非睡眠的OSA患者的心脏自主功能.
- 为了确定睡眠性OSA患者的HRV概况是否与更高的心血管风险有关.
- 探索OSA中嗜睡和心血管疾病风险之间的机制联系.
主要方法:
- 利用悉尼睡眠生物库的心电图 (ECG) 来进行HRV分析.
- 在睡眠 (ESS ≥10) 和非睡眠 (ESS <10) 的OSA患者之间,在N2睡眠期间比较HRV参数.
- 在421名OSA患者中分析了时间和频率域HRV标志物.
主要成果:
- 与非睡眠患者相比,睡眠的OSA患者的HRV显著降低,包括RMSSD,总功率,LF和HF功率.
- 在中度至重度的OSA中,睡眠患者表现出较低RMSSD,总功率,LF和HF功率的趋势.
- 在其他HRV时间和频率域标记器中没有发现显著差异.
结论:
- 昏昏欲睡的OSA患者表现出一种倾向于表同情性戒断的趋势,这表明自主功能受损.
- 这一发现为睡眠性OSA表型与心血管疾病风险增加之间的关联提供了机制支持.
- 在OSA管理中准睡眠可能对减轻心血管风险至关重要.
相关概念视频
01:21Sleep Apnea
149
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...
149
01:19Special considerations while measuring oxygen saturation
592
Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
592
01:26Respiratory Volumes and Capacities I
995
Assessing the respiratory rate and rhythm for a complete minute is crucial for evaluating the breathing pattern. Even a minor increase in the patient's average respiratory rate, by as little as three to five breaths per minute, is an early and vital indicator of respiratory distress. Patients with a respiratory rate exceeding twenty-four breaths per minute require close monitoring to determine the physiological alterations. This careful observation is essential for prompt recognition and...
995
01:30Factors Influencing Heart Rate
2.6K
The heart rate, or pulse rate, is a vital indicator of cardiovascular health. It reflects the number of times the heart beats per minute. Various physiological and environmental factors influence heart rate, increasing or decreasing cardiac output. Understanding these factors is crucial for assessing heart function and identifying potential health issues.
Let us explore the significant factors affecting heart rate, including age, body temperature, posture, acute pain, chemical influences,...
Let us explore the significant factors affecting heart rate, including age, body temperature, posture, acute pain, chemical influences,...
2.6K
01:20Assessment of Ventilation I: Respiratory Rate
1.1K
Assessment of Ventilation
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:
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:
1.1K
01:30Pulse rhythm
795
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
795