患有高血压的人对急性血压的敏感性会因个人水平环境温度下降而增加
Yifan Xu1, Yiqun Han2, Wu Chen1
1BIC-ESAT and SKL-ESPC, College of Environmental Sciences and Engineering, Center for Environment and Health, Peking University, Beijing, China.
Environment international
|March 9, 2024
概括
患有高血压的老年人经历了显著的血压 (BP) 增加与寒冷的环境温度,与没有高血压的人不同. 管理BP的干预应该及时,特别是在冬季.
科学领域:
- 环境健康 环境健康
- 心血管流行病学心血管流行病学
- 生物气象学生物气象学
背景情况:
- 环境温度与血压 (BP) 有反向关系.
- 高血压可能会放大温度和血压之间的关联.
- 这项研究调查了高血压患者是否更容易因温度下降而升高血压.
研究的目的:
- 为了确定高血压患者对环境温度下降后急性血压升高的易感性.
- 为了比较高血压和非高血压的老年人之间的这种易感性.
- 分析这些关联的时间模式.
主要方法:
- 一项涉及251名老年参与者的研究 (126名高血压患者,125名非高血压患者) 在北京.
- 使用便携式传感器进行持续的个人环境温度 (PET) 监测.
- 线性混合效应和分布式滞后模型将BP (SBP,DBP) 与PET在24小时的滞后时间内关联起来.
主要成果:
- 在高血压患者中,PET降低1°C与SBP增加0.96 mmHg和DBP增加0.28 mmHg相关.
- 非高血压患者的血压增加较小,不那么显著 (0.28 mmHg SBP,0.14 mmHg DBP).
- 患有高血压的个体在PET降低后1小时出现高峰血压升高,降低10小时;在非高血压者中没有显著变化.
结论:
- 环境温度下降会急剧增加血压,影响在10小时内减弱.
- 高血压患者,特别是在冬季,对与温度相关的血压升高的敏感性增加.
- 及时干预对于防止由于暴露于寒冷而导致血压激增至关重要,特别是在高血压人群中.
相关概念视频
01:18Hypertension and Regulation of Blood Pressure
2.1K
Hypertension, the most common cardiovascular disease, is diagnosed through repeated measurements of elevated blood pressure. Its risks, including damage to the kidney, heart, and brain, are directly proportional to blood pressure levels. Starting from 115/75 mm Hg, the risk of cardiovascular disease doubles with each increment of 20/10 mm Hg. The diagnosis relies on blood pressure measurements, not on patient symptoms, as hypertension is often asymptomatic until end-organ damage is imminent or...
2.1K
01:28Factors affecting Blood pressure
3.2K
Several physiological and lifestyle factors influence blood pressure (BP). Understanding these factors is crucial as they are significant in patient education and blood pressure management.
Physiological Factors:
Physiological Factors:
3.2K
01:28Special considerations while measuring blood pressure
722
When assessing blood pressure (BP), healthcare professionals must consider various factors and potential unexpected outcomes to ensure accurate readings and provide proper patient care. Adhering to these guidelines is essential to achieving the most reliable results.
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
722
01:30Alterations in Blood Pressure
1.2K
Alterations in blood pressure, such as hypertension (high blood pressure) and hypotension (low blood pressure), significantly affect human health. Understanding these conditions' classifications, causes, and symptoms is essential for effective management and treatment.
Hypertension (High blood pressure)
Hypertension occurs when blood pressure readings consistently exceed the normal range. It is diagnosed when systolic blood pressure (the top number, indicating pressure while the heart...
Hypertension (High blood pressure)
Hypertension occurs when blood pressure readings consistently exceed the normal range. It is diagnosed when systolic blood pressure (the top number, indicating pressure while the heart...
1.2K
01:18Disorders of the Autonomic Nervous System
637
The autonomic nervous system (ANS) is an intricate network of nerves that controls functions such as the regulation of heart rate, digestion, and blood pressure regulation. When this system malfunctions, it can lead to various disorders that affect multiple bodily functions. One common feature of many autonomic disorders is the involvement of smooth blood vessels, which play a crucial role in regulating blood flow throughout the body.
Raynaud's disease, also known as Raynaud's...
Raynaud's disease, also known as Raynaud's...
637
01:17Hormonal Regulation of Blood Pressure
2.6K
Endocrinal or hormonal intervention in the cardiovascular system is predominantly exerted by the catecholamines - epinephrine and norepinephrine, as well as a slew of hormones that interact with renal function to modulate blood volume.
Epinephrine and Norepinephrine
The adrenal medulla releases epinephrine and norepinephrine, catecholamines that enhance and extend the sympathetic or "fight or flight" physiological response. These hormones escalate heart rate and the force of contraction...
Epinephrine and Norepinephrine
The adrenal medulla releases epinephrine and norepinephrine, catecholamines that enhance and extend the sympathetic or "fight or flight" physiological response. These hormones escalate heart rate and the force of contraction...
2.6K