Características clínico-demográficas de pacientes submetidos a cirurgia de revascularização do miocárdio e sua relação com a mortalidade

Abstract

To describe the demographic and clinical characteristics and to test their relation to mortality in patients undergoing to coronary artery bypass graft surgery (CABG). It is a retrospective study developed from the medical records of 655 patients undergoing CABG from May 2002 to April 2010. Hospital mortality was 12.1%. Mortality was significantly (P<0.05) higher in females (17.3%), aged less than 70 years (22.8%), in emergency surgery (36.4%), in cases of readmission to the intensive care unit (ICU) (33.3%), when the stay in the ICU was less than three days (16.3%), undergoing longer cardiopulmonary bypass (CPB) and with more comorbidities (15.4%). Predictor variables of death identified with logistic regression analysis were: female (OR=2.04), age >70 years (OR=2.69), emergency surgery (OR=15.43) and urgency (OR=3.81), performance of CPB (OR=2.19) and re-admission to the ICU (OR=4.33). Variables such as gender, age, type of surgery, readmission to the ICU, ICU stay, comorbidities and time of CPB influence the outcome death in patients undergoing to CABG. Thus, such aspects should be considered to reduce hospital mortality in patients undergoing such surgery.