Objective: To determine predictive factors associated with the need for inotropic and/or vasopressor intraoperative support in patients undergoing myocardial revascularization surgery.Methods: Retrospective cohort analytical study with nested analysis of cases and controls of patients older than 18 years scheduled for elective myocardial revascularization surgery between 2014 and 2017.The incidence of inotropic and/or vasopressor intraoperatively was established and bivariate analysis for possible predictors was performed.Results: 466 patients were studied.The requirement of inotropics and / or vasopressors during the intraoperative period was 75% (350 patients).The use of beta blockers increases the risk 1.85 times of requiring inotropics and / or vasopressors (p 0.01).Conclusions: Chronic use of beta blockers before myocardial revascularization with extraocorporeal circulation increases the need for the use of inotropics and / or vasopressors.other factors described in the literature did not have statistical significance in this study.