相关实验视频
Updated: Jun 10, 2025
08:17
Murine Echocardiography of Left Atrium, Aorta, and Pulmonary Artery
Published on: February 20, 2017
14.3K
肥胖和高血压对无症状的印度成年人左心室几何和功能的影响
Shree C Mamatha1, Prashanth Ks2, Girija B2
1Department of Physiology, Sri Devaraj Urs Medical College, Sri Devaraj Urs Academy of Higher Education and Research, Kolar, Karnataka, India.
Bioinformation
|October 16, 2024
概括
高血压和肥胖严重影响左心室 (LV) 功能. 高血压会改变 LV 几何和心功能,而肥胖会影响 LV 几何和心功能,即使在无症状的成年人中也是如此.
科学领域:
- 心脏病学 心脏病学
- 心血管研究研究心血管研究
- 临床生理学 临床生理学
背景情况:
- 高血压和肥胖是心血管疾病的独立风险因素.
- 左心室 (LV) 功能对心血管健康至关重要.
- 了解这些条件对LV功能的具体影响至关重要.
研究的目的:
- 为了研究肥胖和高血压对LV几何,缩功能和腹缩功能的影响.
- 为了区分肥胖与高血压对心声学参数的影响.
- 评估这些影响在无症状的成年个体.
主要方法:
- 对100名无症状成年人 (60名男性,40名女性) 的横截面研究.
- 根据血压和体重指数将肥胖者分为正常血压患者和非肥胖者的高血压患者.
- 使用未配对t测试 (p<0.05显著性) 分析的LV几何和功能的心声评估.
主要成果:
- 非肥胖的高血压患者表现出 LV 几何和缩功能的显著变化.
- 肥胖的正常血压患者表现出受影响的 LV 扩张功能参数.
- 扩张性功能障碍普遍存在:54%的肥胖正常血压患者和58%的非肥胖高血压患者.
- 高血压显著影响了 LV 几何,缩和腹缩功能.
- 肥胖影响了 LV 几何和透缩功能,即使缩功能被保留.
结论:
- 高血压是左心室几何和功能的重要决定因素,影响心缩和腹缩参数.
- 肥胖会影响左心室几何和扩张功能,强调其在心血管重塑中的作用.
- 这些发现强调了管理高血压和肥胖的重要性,以防止不良的心脏重塑和功能障碍.
相关概念视频
01:29Cardiomyopathy III: Hypertrophic Cardiomyopathy
1
Hypertrophic cardiomyopathy, or HCM, is an autosomal dominant genetic disorder characterized by asymmetric left ventricular hypertrophy without ventricular dilation. It is more common in men and is typically diagnosed in young, athletic adults.EtiologyHCM is primarily genetic and is caused by mutations in genes encoding sarcomeric proteins. Researchers have identified over 1400 mutations across at least 11 different genes. Among these, the most frequently occurring mutations are found in the...
1
01:29Hypertension II: Pathophysiology
2
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,...
2
01:30Hypertension III: Clinical Manifestations and Diagnostic Studies
3
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...
3
01:28Hypertension I: Introduction
2
Hypertension is a widespread, long-term medical condition where blood pressure in the arteries remains elevated. It is characterized by systolic blood pressure readings of 130 mm Hg or above or diastolic blood pressure (DBP) readings of 80 mm Hg or higher. Unmanaged hypertension poses significant health risks, making the distinction between primary (or essential) hypertension and secondary hypertension crucial, as their management and implications vary.Primary HypertensionPrimary hypertension,...
2
01:29Heart Failure II: Pathophysiology
3
Systolic Heart Failure and Compensatory MechanismsSystolic heart failure (also termed HFrEF, Heart Failure with Reduced Ejection Fraction) is the most prevalent type of heart filure. It results in a decreased volume of blood being pumped from the ventricle. The aortic arch and carotid sinuses have baroreceptors that detect reduced blood pressure, triggering the sympathetic nervous system (SNS) to release epinephrine and norepinephrine. Initially, this response aims to boost heart rate and...
3
01:30Coronary Artery Disease I: Introduction
3
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...
3