According to a new analysis of the National Cardiovascular Data Registry, daytime PCI cases performed by operators who worked through the night were fairly uncommon, reports Medscape.

Given the unknowns, the current investigators performed an analysis of the NCDR CathPCI registry. Published January 19, 2015 in the Journal of the American College of Cardiology: Interventions, the analysis included 1 509 096 daytime PCI procedures performed by more than 5000 interventional cardiologists between 7 AM and midnight from 2009 to 2012. Physicians were considered sleep deprived if they performed a procedure from midnight until 6:59 AM the night before starting their shift in the cath lab.