Elderly variant angina

Variant angina is a type of spontaneous angina. In 1959, Prinzmetal et al. named ischemic angina caused by coronary artery spasm "variant angina," noting that the onset of this angina is unrelated to activity, pain occurs at rest, the ECG shows ST-segment elevation during attacks, and the ST segment returns to baseline after the attack without pathological Q waves. Within six months, the incidence of myocardial infarction and death is relatively high. Variant angina can lead to acute myocardial infarction and severe arrhythmias, and even ventricular fibrillation and sudden death.