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Coronary vasospasm refers to when a coronary artery suddenly undergoes either complete or sub-total temporary occlusion. [ 1 ] In 1959, Prinzmetal et al. described a type of chest pain resulting from coronary vasospasm, referring to it as a variant form of classical angina pectoris . [ 2 ]
Seven major factors (i.e. history of out of hospital cardiac arrest [score = 4]; smoking, angina at rest, physically obstructive coronary artery disease, and spasm in multiple coronary arteries [score = 2]; and presence of ST segment elevations on ECG and history of using beta blockers [score = 1]) where assigned the indicated scores ...
The Kounis syndrome is distinguished from two other causes of coronary artery spasms and symptoms viz., the far more common, non-allergic syndrome, Prinzmetal's angina [4] and eosinophilic coronary periarteritis, an extremely rare disorder caused by extensive eosinophilic infiltration of the adventitia and periadventitia, i.e. the soft tissues ...
Those symptoms can also come as a result of a coronary artery spasm, which occurs when an artery in the heart squeezes shut. Clogged arteries can cause those events, as well. 4. Dizziness, nausea ...
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] The main mechanism of coronary artery obstruction is atherosclerosis as part of coronary artery disease.
[26] [27] Angina can also occur due to spasm of the coronary arteries, even in individuals without atherosclerosis. [28] In coronary artery spasm, the vessel constricts to limit blood flow through the artery, causing a decrease in oxygen supply to the heart, although the mechanisms for this phenomenon are not fully understood. [28]
Coronary artery aneurysm is an abnormal dilatation of part of the coronary artery. This rare disorder occurs in about 0.3–4.9% of patients who undergo coronary angiography . [ 2 ]
Ischemia in the heart due to prolonged coronary vasospasm can lead to angina, myocardial infarction and even death. Vasospasm in the hands and fingers due to prolonged exposure to vibration (30 – 300 Hz) [ failed verification ] [ dubious – discuss ] and triggered by cold can lead to Hand-arm vibration syndrome in which feeling and manual ...
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