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Microvascular angina is a chronic long term condition which increases the risk of heart attack and other cardiac events such as heart failure and frequent hospital admissions. The treatment consists of drugs, mainly to relieve chest pain, but a very important part of the treatment is regularly visiting the doctor and repeating the tests to make ...
Microangiopathy (also known as microvascular disease, small vessel disease (SVD) or microvascular dysfunction) is a disease of the microvessels, small blood vessels in the microcirculation. [1] It can be contrasted to macroangiopathies such as atherosclerosis , where large and medium-sized arteries (e.g., aorta , carotid and coronary arteries ...
The primary cause of microvascular angina is unknown, but factors apparently involved are endothelial dysfunction and reduced flow (perhaps due to spasm) in the tiny "resistance" blood vessels of the heart. [18] Since microvascular angina is not characterized by major arterial blockages, it is harder to recognize and diagnose. [19] [20] [21]
Theories suggest a link between brain activation of stress-related biochemicals (including neuropeptides) and the effects these chemicals have on areas of the heart, especially neuropeptide Y. [26] More specifically, adrenal stimulation by the sympathetic nervous system has been noted in cases ranging from physical events such as ischemic ...
Neovascularization is the natural formation of new blood vessels (neo-+ vascular + -ization), usually in the form of functional microvascular networks, capable of perfusion by red blood cells, that form to serve as collateral circulation in response to local poor perfusion or ischemia.
Variant angina is caused by vasospasm, a narrowing of the coronary arteries due to contraction of the heart's smooth muscle tissue in the vessel walls. [3] In comparison, stable angina is caused by the permanent occlusion of these vessels by atherosclerosis , which is the buildup of fatty plaque and hardening of the arteries.
Atherosclerosis. Atherosclerosis contributes to about half of all deaths in Western countries, including the United States. Globally, it causes about 10 million deaths per year.. Atherosclerosis ...
Etiologically, four main causes are responsible for the development of heart failure in diabetic cardiomyopathy: microangiopathy and related endothelial dysfunction, autonomic neuropathy, metabolic alterations that include abnormal glucose use and increased fatty acid oxidation, generation and accumulation of free radicals, and alterations in ...