Association of pre and intraoperative variables with postoperative complications in coronary artery bypass graft surgery

Objective

To associate the pre- and intraoperative variables with postoperativecomplications of patients undergoing coronary artery bypass graft surgery.

Methods

The pre- and intraoperative risk factors of individuals of both genders withdiagnosis of coronary insufficiency undergoing coronary artery bypass graft havebeen studied.

Results

Fifty-eight individuals with median age 62 ± 10 year-old were included in thestudy, 67% of whom were male. Fourteen (24.1%) patients were smokers, 39 (67.2%)had previous myocardial infarction history, 11 (19%) had undergone coronaryangioplasty, 74% had hypertension, 27% had diabetes mellitus, 64% had dyslipidemiaand 15.5% had chronic obstructive pulmonary disease. Eighteen (31%) patientspresented postoperative complications, most frequent being: infection in surgicalincision, difficulties in deambulation, dyspnea, urinary infection and generalizedweakness. Male patients had fewer complications than females(P=0.005). Patients with chronic obstructive pulmonary diseaseremained hospitalized for longer time periods (P=0.019).Postoperative complications occurred in 50% of the patients with creatinineincreased, while only 27.1% of the patients with normal value of creatinine hadcomplications (P=0.049). In addition, complications occurred in50% of the patients with diabetes mellitus, while only 23.8% of patients withoutdiabetes mellitus had complications (P=0.032). The intraoperativefactors showed no statistically significant differences.

Conclusion

The preoperative factors are associated with postoperative complications inpatients undergoing coronary artery bypass graft surgery.