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相关概念视频

Factors affecting Blood pressure01:28

Factors affecting Blood pressure

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:
Measurement of Blood Pressure01:17

Measurement of Blood Pressure

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 stethoscope.
Coronary Artery Disease I: Introduction01:30

Coronary Artery Disease I: Introduction

Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
Coronary Artery Disease IV: Preventive Measures01:26

Coronary Artery Disease IV: Preventive Measures

Effective preventive measures for coronary artery disease (CAD) focus on controlling modifiable risk factors, including cholesterol abnormalities and lifestyle changes.Cholesterol ManagementFirst, the Mediterranean diet and the American Heart Association advocate for maintaining low-density lipoprotein (LDL) cholesterol levels below 100 mg/dL, with a more stringent recommendation of below 70 mg/dL for individuals at high risk. LDL cholesterol, often termed "bad cholesterol," can lead to the...
Hypertension II: Pathophysiology01:29

Hypertension II: Pathophysiology

Hypertension is a chronic condition in which the blood's force against artery walls is excessively high, posing risks such as heart disease. The condition's underlying mechanisms involve complex interactions among the cardiovascular, kidney, and autonomic nervous systems.Renin-Angiotensin-Aldosterone System (RAAS): This system significantly influences blood pressure regulation. When blood pressure decreases, the kidneys secrete renin. This enzyme transforms angiotensinogen, a plasma protein,...
Hypertension III: Clinical Manifestations and Diagnostic Studies01:30

Hypertension III: Clinical Manifestations and Diagnostic Studies

Hypertension is asymptomatic and also referred to as the "silent killer" until it progresses to a severe stage or causes target organ disease. Patients may experience symptoms stemming from the strain on blood vessels and tissues in various organs or the heart's increased workload.Physical exams might show no abnormalities other than high blood pressure. Signs of vascular damage, when present, correspond to the organs supplied by the affected vessels, leading to target organ damage. For...

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相关实验视频

Updated: Jul 16, 2026

Assessment of Vascular Function in Patients With Chronic Kidney Disease
08:50

Assessment of Vascular Function in Patients With Chronic Kidney Disease

Published on: June 16, 2014

在老年人中,隔离性缩性高血压和亚临床心血管疾病. 心血管健康研究的初步发现

B M Psaty1, C D Furberg, L H Kuller

  • 1Department of Medicine, University of Washington, Seattle 98105.

JAMA
|September 9, 1992
PubMed
概括

在老年人中,隔离性静心高血压 (ISH) 与亚临床心血管疾病有关. 这包括心脏结构的变化和动脉样硬化,表明未来潜在的健康风险.

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科学领域:

  • 老年学是一门学科.
  • 心血管医学 心血管医学
  • 公共卫生 公共卫生

背景情况:

  • 隔离性缩性高血压 (ISH) 在老年人中很常见.
  • 亚临床心血管疾病 (CVD) 代表心血管疾病的早期阶段.
  • 了解ISH和亚临床心血管疾病之间的联系对于老年人的预防策略至关重要.

研究的目的:

  • 为了研究孤立的缩性高血压 (ISH) 与亚临床疾病的各种标志物之间的关联.
  • 评估65岁及以上社区成年人之间的关系.

主要方法:

  • 从心血管健康研究的基线数据的横截面分析.
  • 包括2189名没有先前心血管疾病或抗高血压治疗的老年参与者.
  • 使用心电图,心声图和状腺声学评估亚临床疾病.

主要成果:

  • 边缘性 (140-159毫米) 和确定的ISH (≥160毫米) 都普遍存在 (23%和9%).
  • ISH与左心室质量增加,扩张功能受损,以及大脑动脉内心介质厚度有关.
  • 缩血压与心肌梗塞的心电图证据有显著的关联.

结论:

  • 边界和确定的ISH都与老年人亚临床心血管疾病的多种指标密切相关.
  • 这些发现凸显了老年人控制缩血压的重要性,以防止未来的心血管事件.