Characterization of primary percutaneous coronary intervention requiring predilation

Abstract

ABSTRACT Background Although predilation during primary percutaneous coronary intervention offers greater predictability for stent implantation, it is associated with complications that may negatively influence immediate and late outcomes. The objective of this study was to characterize procedures requiring predilation, comparing them to those performed by direct stent implantation. Methods Primary percutaneous coronary interventions registered at the Central Nacional de Intervencoes Cardiovasculares (CENIC) from 2006 to 2016 were analyzed. The clinical and angiographic profiles of the procedures performed with or without predilation, hospital outcome measures, and predictors of mortality were characterized. Results The sample consisted of 17,515 patients. Those who underwent predilation differed from the direct stent implantation group regarding clinical characteristics, with a higher prevalence of elderly, women, and associated comorbidities. In the first group, the rates of calcified lesions, bifurcations, occlusions, and multivessel coronary disease were higher. Intervention failure rates were also higher in patients undergoing predilation, as well as the rates of major adverse cardiac events. In the multiple logistic regression model, the need for predilation was correlated with the occurrence of hospital death. Conclusions Primary percutaneous coronary intervention requiring predilation was characterized by a higher prevalence of clinical comorbidities and by angiographic and technical complexity of the procedures. Predilation is an independent predictor of hospital mortality in this clinical setting.