夜间脉冲波幅度减弱与长期心血管事件有关
Sobhan Salari Shahrbabaki1, Dominik Linz2, Mathias Baumert1
1School of Electrical and Electronic Engineering, The University of Adelaide, Adelaide, Australia.
International journal of cardiology
|May 31, 2023
概括
通过光聚光学测量 (PPG) 测量的夜间脉冲波幅 (PWA) 变化可以预测心血管事件. 较低的PWA减弱与心血管风险增加有关,特别是在男性和非裔美国人中.
科学领域:
- 心血管研究研究心血管研究
- 生物医学工程 生物医学工程
- 生理学 生理学 生理学
背景情况:
- 摄影电流图 (PPG) 用于脉冲率检测.
- 对心血管 (CV) 事件脉冲波幅 (PWA) 的时间变化的预后价值尚不清楚.
- 调查夜间PWA变异可能会揭示新的心血管风险标志物.
研究的目的:
- 为了量化夜间时间PWA衰减.
- 评估夜间PWA减弱和长期CV事件之间的关联.
- 在一个庞大的多民族人口中评估这种关联.
主要方法:
- 分析了来自1957年多民族动脉样硬化研究参与者的夜间多睡眠记录的PPG数据.
- 夜间PWA衰减指数是计算PWA衰减事件相对于总睡眠时间的累积持续时间.
- 考克斯比例危险分析用于评估与CV事件的关联,平均随访时间为4.9年.
主要成果:
- 夜间PWA减弱指数在男性 (16.3%) 比女性 (14.4%) 高,并且根据种族而异 (华裔美国人:17.9%,非裔美国人:13.5%).
- 夜间PWA减弱指数低于15.2%与心血管事件风险增加有关 (HR=1.58,p=0.042).
- 这种关联在男性和非裔美国人参与者中尤其明显.
结论:
- 夜间PWA衰减指数与心血管事件的风险相反相关.
- 这一PPG衍生指数可以作为一个低成本,可访问的心血管风险标志物.
- 这些发现表明,可以将其集成到消费者可穿戴设备中,以广泛进行心血管风险查.
相关概念视频
01:17Pulse amplitude and quality
1.9K
Pulse amplitude is a crucial indicator of cardiac health because it provides valuable insights into the strength of left ventricular contractions and the overall uniformity of blood circulation within the vasculature. The strength of the pulse is directly related to the force with which the heart contracts and the volume of blood being pumped.
A weak or absent pulse may indicate reduced cardiac output or poor left ventricular contraction, which can be signs of cardiovascular dysfunction or...
A weak or absent pulse may indicate reduced cardiac output or poor left ventricular contraction, which can be signs of cardiovascular dysfunction or...
1.9K
01:16Pulse
599
When the heart pumps blood out, arterial elastic fibers play a crucial role in sustaining a high-pressure gradient. They expand to accommodate the received blood and then recoil - a process known as the pulse that can be either manually palpated or electronically quantified. Despite a reduction in its effect with increased distance from the heart, elements of the pulse's systolic and diastolic components persist, observable even at the arteriole level.
The pulse serves as a clinical...
The pulse serves as a clinical...
599
01:13Special considerations while measuring pulse
627
Assessing a patient's pulse is a fundamental skill in healthcare, but certain situations require special attention:
627
01:17Measurement of Blood Pressure
1.0K
Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a...
1.0K
01:30Pulse rhythm
857
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...
857
01:29Cardiovascular System Abnormal Findings I: Inspection and Palpation
453
In a cardiovascular examination, inspection and palpation are crucial for identifying abnormalities.
Abnormal findings observed during an inspection
Abnormal findings observed during an inspection
453