Study Design
This is a randomized controlled clinical trial conducted with the group of patients admitted to the Intensive Care Unit at the Instituto Nobre de Cardiologia (INCARDIO) in Feira de Santana - BA, from January 2016 to October 2019. The study was approved by the Research Ethics Committee of Faculdade Nobre de Feira de Santana - Bahia, under opinion number 1,405,821. All patients were informed about the objectives of the study and signed a free and informed consent form.