Prinzmetal angina DOID:0111151 A coronary artery vasospasm characterized by spasms of the coronary arteries that occur while at rest, generally late at night or early in the morning, resulting in severe chest pain with preserved exercise capacity. Prinzmetal's angina Prinzmetal's variant angina angina inversa disease_ontology MESH:D000788 variant angina variant angina pectoris coronary artery vasospasm