<unk>  refers to when a coronary artery suddenly undergoes either complete or sub-total temporary occlusion. In 1959, Prinzmetal et al. described a type of chest pain resulting from<unk> , referring to it as a variant form of classical angina pectoris. Consequently, this angina has come to be reported and referred to in the literature as Prinzmetal angina. A subsequent study distinguished this type of angina from classical angina pectoris further by showing normal coronary arteries on cardiac catheterization. This finding is unlike the typical findings in classical angina pectoris, which usually shows atherosclerotic plaques on cardiac catheterization. When<unk>  occurs, the occlusion temporarily produces ischemia. A wide array of symptoms or presentations can follow: ranging from asymptomatic myocardial ischemia, sometimes referred to as silent ischemia, to myocardial infarction and even sudden cardiac death.
Coronary vasospasm
Coronary ischemia
Coronary occlusion
Myocardial stunning
Cerebral vasospasm
Hyperdynamic circulation
Coronary steal
Coronary thrombosis