Study design
This is a prospective cohort study that was conducted between January 2018 and July 2019, in patients undergoing to CABG at the Instituto Nobre de Cardiologia / Santa Casa de Misericórdia, in the city of Feira de Santana (BA). The research was approved by the Research Ethics Committee of Faculdade Nobre, under number 796,580 and the patients were included after signing the informed consent form.