Background: Erectile function is markedly affected by acute alterations in circulatory homeostasis. The objectives of this study were relevant in that, if there is a significant problem with erectile function in this expanding population of cardiac surgical patients, it has to be addressed because of importance of sexual health and its strong interaction with measures of quality of life. Methods: Candidates for CABG were interviewed using the International Index of Erectile Function (IIEF). The interview was performed before surgery and 6 months after surgery. Results: Thirty male patients were interviewed before the surgery. Eighteen patients (69,2%) had mild-moderate ED, whereas 8 (30,7%) had mild ED. The mean IIEF score increased from 43,0 to 44,7. IIEF decreased in 8, increased in 15 and did not change in 3 patients. Nine of 10 diabetic patients were interviewed after surgery, in whom IIEF decreased in 6 patients, increased in 2 and did not change in 1 patient. Among hypertensive patients, 10 were interviewed after surgery, in whom IIEF decreased in 4, increased in 5 and did not change in 1 patient. Conclusion: Our results reverted that diabetes was a risk factor for ED, whereas cardiac status remain noninfluential. Sexual function should be kept in mind and multidisciplinary approach should be considered to improve the quality of life.