脉冲到达速度用于追踪儿童和青少年运动诱导的血压变化
Luke E Ryan1, Melanie M Clarke1, Daniel Ray1
1Heart Research, Murdoch Children's Research Institute, Parkville, VIC, Australia.
Heart, lung & circulation
|October 31, 2025
概括
脉冲到达速度 (PAV) 在儿童运动期间跟踪缩血压 (BP) 显示出希望. 这种新方法可以通过考虑不同脉冲传播距离来改善无袖血压监测.
科学领域:
- 儿科心脏病学 儿科心脏病学
- 生物医学工程 生物医学工程
- 心血管生理学心血管生理学
背景情况:
- 在儿科患者中,无袖式血压 (BP) 监测仍然具有挑战性.
- 基于脉冲到达时间 (PAT) 的技术在儿童成长期间因脉冲传播距离 (L) 的变化而受到困扰.
- 脉冲到达速度 (PAV = L/PAT) 是一个新的指标,旨在解决这种变化.
研究的目的:
- 调查PAV在跟踪儿童和青少年运动诱导的血压变化的潜力.
- 为了比较PAV与PAT在估计体力运动期间BP变化的表现.
- 评估PAV是否符合BP监测验证标准.
主要方法:
- 38名儿科参与者 (平均年龄12.3岁) 接受了布鲁斯协议运动测试.
- 使用了回归和遗漏一次交叉验证分析.
- 评估了PAT和PAV模型的性能,以估计运动诱导的缩和腹缩血压变化.
主要成果:
- 基于PAV的模型在AAMI标准 (0.0±7.6 mmHg,r=0.87) 范围内估计了缩血压升高,超过了PAT模型 (0.0±9.1 mmHg).
- 此外,PAV还在AAMI标准 (0.0±7.0 mmHg,r=0.51) 范围内估计了透气血压变化.
- 通过包括心率,年龄,性别或身高,模型的表现没有得到改善.
结论:
- 在儿童群体中,PAV显示出在运动期间精确的缩血压跟踪的显著潜力.
- 通过结合脉冲传播长度,PAV在无袖血压监测设备中可能比PAT提供更高的性能.
- 需要进一步验证,特别是在对透静血压估计方面.
相关概念视频
01:16Pulse
2.0K
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...
2.0K
01:05Pulse
3.4K
The pulse is one of the most fundamental physiological indicators of the body's cardiovascular health. It is the rhythmic expansion and contraction of the arterial walls in response to the pressure generated by the heart's pumping action.
Pulse Rate and its Significance
Pulse rate, often measured in beats per minute (bpm), reflects the heart rate (HR), which is influenced by numerous factors such as stress, physical activity, and hormonal changes. A normal resting adult pulse rate falls...
Pulse Rate and its Significance
Pulse rate, often measured in beats per minute (bpm), reflects the heart rate (HR), which is influenced by numerous factors such as stress, physical activity, and hormonal changes. A normal resting adult pulse rate falls...
3.4K
01:17Measurement of Blood Pressure
2.6K
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...
2.6K
01:19Assessing Blood pressure using a doppler ultrasound
2.3K
To obtain accurate blood pressure measurements in clinical settings, especially when traditional methods are insufficient, healthcare professionals utilize the Doppler ultrasound technique. This method uses high-frequency sound waves to detect blood flow within the arteries, which is crucial for patients with conditions that complicate circulatory system assessment.
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
Pre-Procedural Guidelines for Doppler Ultrasound Blood Pressure Assessment:
Preparation of Equipment:
2.3K
01:13Special considerations while measuring pulse
895
Assessing a patient's pulse is a fundamental skill in healthcare, but certain situations require special attention:
895
01:30Equipments Used To Measure Blood Pressure
3.0K
Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
3.0K