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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 ...
Regarding coronary vasospasm, one surgical intervention, referred to as percutaneous coronary intervention or angioplasty, involves placing a stent at the site of stenosis in an artery and inflating the stent using a balloon catheter. Another surgical intervention is coronary artery bypass.
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]
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