“A stent can cause blood clotting, which may increase the risk of heart attack or stroke. The National Heart, Lung, and Blood Institute state that about 1 to 2 percent of people who have stented arteries develop a blood clot at the site of the stent. Doctors will usually prescribe one or more drugs to prevent clotting.”

MAYO CLINIC (https://www.mayoclinic.org/tests-procedures/coronary-angioplasty/about/pac-20384761)