Coronary vasospasm

Coronary vasospasm is a sudden, intense vasoconstriction of an epicardial coronary artery that causes occlusion (stoppage) or near-occlusion of the vessel. Coronary vasospasm is a sudden, intense vasoconstriction of an epicardial coronary artery that causes occlusion (stoppage) or near-occlusion of the vessel. It can cause Prinzmetal's angina. It can occur in multiple vessels. Atropine has been used to treat the condition.