Lee KH, Torii S, Oguri M, et al. - In this retrospective study, researchers sought to corroborate decrease of door-to-balloon (D2B) time with single-catheter percutaneous coronary intervention (SC-PCI) method. Participants were 1,275 consecutive ST-elevation myocardial infarction (STEMI) patients managed with primary percutaneous coronary intervention (PCI) in 14 hospitals. The participants were split into two categories, SC-PCI method (n = 298) and conventional PCI method (n = 977). In 85% of participants, radial access was employed. Findings revealed that a shorter D2B time and lower radiation exposure dose were offered by primary PCI with SC-PCI method for STEMI patients.