·Heart failure:also known as congestive heart failure, meaning the heart is not able to pump enough blood to meet the needs of the body. This may happen because of a defect in the heart that prevents blood from getti...
We will examine the different aspects of hemodynamics, the study of blood flow and its forces, to understand this vital process. The cardiovascular system, responsible for blood circulation, is essentially a closed-loop system composed of the heart, blood vessels, and the blood it...
Acute coronary syndrome (ACS)is a medical emergency that occurs when the blood flow to the heart is suddenly reduced or blocked. Typically caused by plaque build-up in the arteries that supply the heart muscle with oxygen and nutrients, undiagnosed or untreated ACS can rupture or cause a blood...
Blood thinners are medications that prevent the formation of blood clots.(1)Blood clots can stop the blood flow to your heart.(2) Blood thinners can be taken intravenously through a vein or orally for preventing a blood clot. Blood clots can not only stop the blood flow to the heart, but...
Angina (chest pain due to reduced blood flow to the heart muscles) What happens to the heart rate during atrial fibrillation? In a heart that is beating normally, the rate of ventricular contraction is the same as the rate of atrial contraction. In atrial fibrillation, however, the rate of...
Better Stress Management: High HRV indicates strong vagal tone, which helps the body recover quickly from stress and reduces the physical impact of chronic stress. Improved Focus and Clarity: Higher HRV improves blood flow to the brain, enhancing focus and mental clarity, especially under press...
To assess the effect of left heart disease on pulmonary blood flow distribution, we measured mean pulmonary arterial and wedge pressures, cardiac output, p... M Pistolesi,M Miniati,M Bonsignore,... - 《Journal of Thoracic Imaging》 被引量: 16发表: 1988年 Elasticity of Pulmonary Blood Vessels...
The re-narrowing can be treated by performing a balloon angioplasty, also known as Percutaneous Transluminal Coronary Angioplasty (PTCA). This is a minimally invasive surgical procedure used to restore blood flow through the vessel usin...
Hypoxemia also affects renal blood flow, possibly through a reflex mechanism involving sympathetic nerves and chemoreceptor stimulation. The role of nitric oxide (NO) in this response is suggested, as COPD patients often show a lack of response to L-arginine, indicating potential deficiencies in NO...
Acardiac stress testshows how your heart works during physical activity. Also known as an exercise stress test, it can detect problems with blood flow when the heart is pumping faster and harder than usual. The test can be done while walking on a treadmill or riding a stationary bike. Or ...