A MAajor RAdiation-based PCI Study in STEMI and NSTEMI

A retrospective database of the hemodynamics department of the Centre Cardiologique du Nord and Clinica Mediterranea, comprising 15,630 consecutive angioplasties performed in unselected patients between February 1, 2008, and July 7, 2018, was used to identify complex angioplasties and standard angioplasties. Two categories of complex angioplasty were identified: complex angioplasty with a single complexity criterion and very complex angioplasty with two or more complexity criteria. These complex angioplasties were then compared with standard angioplasty (angioplasty with no complexity criteria). The following criteria were employed to delineate complex or very complex angioplasties: * Unprotected Left Coronary Common Trunk Angioplasty (UT-PCI) * Angioplasty with Rotablator Rotary Atherectomy (ARota-PCI) * Angioplasty of Chronic Coronary Occlusion (CCO-PCI) * Angioplasty of a Bifurcation Lesion (CBL-PCI) The following definitions pertain to the classification of angioplasty procedures: * Standard angioplasty: This encompasses angioplasty procedures that do not meet the criteria for complexity. * Complex angioplasty: This designation is applied to angioplasty procedures that meet at least one criterion for complexity. * Very complex angioplasty: This designation is applied to angioplasty procedures that meet at least two criteria for complexity.