Faridi KF, et al. - Given the possibility of performing percutaneous coronary intervention (PCI) in the same procedure as diagnostic coronary angiography (ad hoc PCI), researchers sought to determine current rates of ad hoc PCI use and investigated associated risks of adverse outcomes in patients with stable coronary artery disease (CAD). Using the National Cardiovascular Data Registry (NCDR) CathPCI Registry from 2009–2017, they identified 550,742 patients with stable CAD who underwent PCI; of these, 82.9% of patients underwent ad hoc PCI. This suggests a remarkably frequent undertaking of ad hoc PCI among U.S. patients with stable CAD. Its undertaking is noted to be correlated with lower bleeding risk but no differences in risks of acute kidney injury or mortality compared with non-ad hoc PCI.