相关实验视频
Updated: Jul 4, 2025

06:53
3D Whole-heart Myocardial Tissue Analysis
Published on: April 12, 2017
8.8K
世界的心脏 世界的心脏
Mariachiara Di Cesare1, Pablo Perel2,3, Sean Taylor3
1Institute of Public Health and Wellbeing, University of Essex, Colchester, UK.
Global heart
|January 26, 2024
概括
心血管疾病 (CVD) 是全球主要的健康问题,特别是在低收入国家. 解决关键风险因素和实施强有力的公共卫生政策对于全球的心血管疾病预防和管理至关重要.
科学领域:
- 全球健康 全球健康
- 流行病学 流行病学
- 公共卫生政策 公共卫生政策
背景情况:
- 心血管疾病 (CVD) 是全球死亡的主要原因,对低收入和中等收入国家产生不成比例的影响.
- 在2021年,心血管疾病造成了2050万人的死亡,突显了对有效干预和政策制定的迫切需要.
- 区域差异存在,中欧,东欧和中亚地区的心血管疾病死亡率最高.
研究的目的:
- 分析心血管疾病 (CVD) 的全球负担.
- 检查心血管疾病风险因素与国家卫生支出之间的关联.
- 用WHF政策指数评估关键心血管疾病预防政策的实施情况.
主要方法:
- 利用了包括全球疾病负担研究和世卫组织数据库在内的全面全球健康研究的数据.
- 分析了心血管疾病死亡率,风险因素患病率 (如血压升高) 和国家卫生支出数据.
- 通过全球不同地区的WHF政策指数评估政策实施情况.
主要成果:
- 血压升高是导致心血管疾病的全球主要危险因素,2019年导致1080万人死亡.
- 观察到心血管疾病死亡率的区域差异很大,在某些地区,性别之间存在显著差异.
- 南亚,中欧/东欧/中亚和高收入地区的政策实施得分较高,而撒哈拉以南非洲的政策实施得分最低.
结论:
- 有效的CVD预防和管理需要根据国家特定的风险因素概况制定量身定制的策略.
- 实施国家烟草控制计划,确保药物可用性,并建立专门的NCD单位是基本的.
- 足够的医疗保健系统资金对于确保公平获得护理和减轻心血管疾病的全球负担至关重要.
相关概念视频
Location and Orientation of the Heart
2.8K
The human heart, despite its modest size and weight, is an organ of remarkable strength and endurance. Roughly the size of a fist, the heart weighs between 250 and 350 grams and is nestled within the mediastinum, the medial cavity of the thorax. It extends obliquely for about 12 to 14 cm, resting on the superior surface of the diaphragm. The heart is positioned anterior to the vertebral column and posterior to the sternum, with two-thirds of its mass lying to the left of the midsternal line.
2.8K
Overview of the Heart
5.8K
The heart, a muscular organ located in the chest, functions as the body's pump, circulating blood through the vascular system. It has four chambers: two atria on top and two ventricles below. The right atrium receives deoxygenated blood from the body and passes it to the right ventricle, which pumps it to the lungs for oxygenation. The left atrium receives oxygenated blood from the lungs and transfers it to the left ventricle, which pumps it to the rest of the body.
The heart's...
The heart's...
5.8K
Chambers of the Heart
4.6K
The human heart is a complex organ made up of four chambers: the right and left atria and the right and left ventricles. These internal chambers are separated by partitions known as the interatrial and interventricular septa. The exterior of the heart features a groove known as the coronary sulcus that demarcates the atria from the ventricles, while the anterior and posterior interventricular sulci distinguish between the two ventricles.
Deoxygenated blood from the body is received in the right...
Deoxygenated blood from the body is received in the right...
4.6K
Anatomy of the Heart
516
The heart is a hollow, muscular organ approximately the size of a fist, consisting of four chambers. It is enclosed in the pericardium, a fibrous sac with two layers: the visceral and parietal pericardium, separated by a fluid-filled space containing serous fluid to reduce friction.
The heart has three layers: the innermost endocardium, the muscular myocardium, and the outer epicardium, all working together for optimal cardiac function.
Chambers of the Heart
The heart is made up of four...
The heart has three layers: the innermost endocardium, the muscular myocardium, and the outer epicardium, all working together for optimal cardiac function.
Chambers of the Heart
The heart is made up of four...
516
Development of the Heart
947
The development of the human heart, a crucial organ, commences from the mesoderm on the 18th or 19th day after fertilization. This process initiates in the cardiogenic area, a group of mesodermal cells at the embryo's head end, which evolves into elongated strands known as cardiogenic cords. These cords undergo a transformation to form hollow-centered endocardial tubes.
As the embryo undergoes lateral folding, these paired tubes approach each other, merging into a single primitive heart...
As the embryo undergoes lateral folding, these paired tubes approach each other, merging into a single primitive heart...
947
Layers of the Heart Wall
2.5K
The heart wall comprises three distinct layers: the epicardium, myocardium, and endocardium. The outermost layer, the epicardium, is the visceral layer of the serous pericardium, featuring a thin, transparent mesothelial surface and an inner layer of areolar connective tissue with fat deposits that increase with age.
The myocardium, the thickest layer, consists of cardiac muscle cells interconnected by intercalated discs and crisscrossing connective tissue fibers. These muscle fibers contract...
The myocardium, the thickest layer, consists of cardiac muscle cells interconnected by intercalated discs and crisscrossing connective tissue fibers. These muscle fibers contract...
2.5K

