Among selected low-risk U.S. Medicare patients who underwent an elective percutaneous coronary intervention (PCI; procedures such as balloon angioplasty or stent placement used to open narrowed coronary arteries), same-day discharge was rarely implemented, but was not associated with an increased risk of being rehospitalized or having a higher risk of death at two days or at 30 days, than patients who remained in the hospital overnight, according to a new study.