Determinants of Greater Peak Radiation Skin Dose in Contemporary Percutaneous Coronary Interventions

BACKGROUND Skin radiation injuries, especially radiation ulcers, are serious side effects caused by ionizing radiation during percutaneous coronary interventions (PCI). Because skin radiation injuries are closely associated with the peak skin dose, it is important to minimize the peak skin dose. The aim of the present study was to investigate the determinants of greater peak skin dose in current PCI. METHODS We included 707 consecutive coronary artery lesions, and divided them into an excess radiation group (n = 26; defined as peak skin dose ≥2 Gy) and a standard radiation group (n = 681; defined as peak skin dose