Of these, were
excluded during preoperative those presenting arrhythmias,
chronic obstructive pulmonary disease, identified by prior
spirometry or under use of bronchodilators, patients using
tridil, and those presenting anginal chest pain and patients
with a body mass index greater than 30 kg/m2
. We also
excluded patients who had complications in the
postoperative period, of whom did not allow the
measurement of weights on first postoperative (PO1) day
under use of intra-aortic balloon, emergency surgery,
reoperations and patients undergoing procedures
associated with revascularization