(Reuters Health) - For people who have recently had a stent implanted in a blocked heart artery, the risk of developing a blood clot may be higher early in the morning than other times of day, researchers reported Monday. Stents are tiny, scaffold-like devices implanted into narrowed heart arteries to help improve blood flow to the heart. In about 1 to 2 percent of patients, a blood clot forms around the stent, which can trigger a heart attack or stroke; the risk is greatest in the few months after the stent is implanted.
