title: Evaluations of erectile dysfunction before and after on-pump coronary artery bypass graft surgery.
abstract: BACKGROUND
  Erectile dysfunction (ED) is common in cardiovascular disease (CVD) and indicates a complication of coronary artery bypass graft surgery (CABG). This study was designed to evaluate the status of erectile dysfunction in patients with CAD before and after CABG surgery.
  
  
  METHODS
  We designed a prospective cohort study on male patients candidates for elective on-pump CABG between June 2006 to October 2012 in 3 hospitals in Sari, Iran (Fatemeh Zahra, Shafa and Nime-Shaban Hospitals). Patient's primary data were collected based on the International Index of Erectile Function questionnaire (IIEF-5) at baseline 6 months after surgery. The severity of dysfunction was categorized as, normal, mild to moderate and moderate to severe based on IIEF score.
  
  
  RESULTS
  Four hundred twenty-six male patients with mean age of 58.69±12.49 years participated in this study. 166 patients had DM (38.96%) 230 patients had hypertension (54%). 307 patients had three-vessel impairment (72.07%) and 119 patients with one or two vessel impairment (27.93%). The 15.02%, 18.07%, 23%, 31.92% and 11.97%, at baseline changed to 16.90%, 19.95%, 23.71%, 32.22% and 8.21%, at endpoint (P=0.01). Also, the mean±SD of IIEF-5 score before and after surgery was 13.95±5.44 and 14.20±5.69, respectively (P=0.001).
  
  
  CONCLUSIONS
  The result of our study shows that on-pump CABG surgery has a positive effect on the improvement of erectile dysfunction 6 months after surgery.
authors.affiliation: Cardiac Surgery Department , Fatemeh Zahra Hospital, Mazandaran University of Medical Sciences, Sari, Iran.
authors.forename: Shervin
authors.initials: S
authors.lastname: ZiabakhshTabary
authors.affiliation: Mazandaran University of Medical Sciences, Sari, Iran.
authors.forename: Farzad
authors.initials: F
authors.lastname: Mokhtari-Esbuie
authors.affiliation: Student Research Committee, Mazandaran University of Medical Sciences, Sari, Iran.
authors.forename: Mehran
authors.initials: M
authors.lastname: Fazli
keywords: Coronary artery bypass graft surgery; Erectile dysfunction; IIEF-5