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Angina, also known as angina pectoris, is chest pain or pressure, usually caused by insufficient blood flow to the heart muscle (myocardium). [2] It is most commonly a symptom of coronary artery disease. [2] Angina is typically the result of partial obstruction or spasm of the arteries that supply blood to the heart muscle. [3]
Variant angina differs from stable angina in that it commonly occurs in individuals who are at rest or even asleep, whereas stable angina is generally triggered by exertion or intense exercise. 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]
This discovery led to this type of angina being referred to in the literature as Prinzmetal angina. [ 3 ] [ 20 ] A following study further distinguished this angina from classical angina pectoris due to the fact that the results showed that the patients with chest pain due to coronary vasospasm lacked evidence of atherosclerosis on cardiac ...
Arrhythmias are the main cause of cardiac arrest but can be triggered by other cardiac events such as heart attacks. Other risk factors include coronary heart disease, heart valve disease, and ...
Angina comes from the latin angere, which means to strangle, and pectoris comes from pectus, meaning chest—so angina pectoris loosely translates to “strangling of the chest”, which actually makes a lot of sense, because angina pectoris is caused by reduced blood flow which causes ischemia to the heart muscle, or lack of oxygen to the ...
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 ...
These include angina (chest pain), arrhythmia (abnormal heartbeat), dementia, heart attack, heart failure, kidney failure, stroke, loss of vision and more, many of which can be deadly or ...
Prinzmetal angina, Buerger's disease, contrast mediated selective renal vasospasm, hypercoagulability and cryoglobulinemia likely represent just a few of the known pieces of this puzzling phenomena. Ischemia in the heart due to prolonged coronary vasospasm can lead to angina , myocardial infarction and even death.
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