title: Improvement of ejection fraction after coronary artery bypass grafting surgery in patients with impaired left ventricular function.
abstract: OBJECTIVE
  The present study evaluates our experience with aorto-coronary bypass grafting in patients with severe dysfunction of left ventricle (LV) and low ejection fraction-EF(<35%). Revascularization of myocardium in this settings remains contraversial because of concerns over morbidity, mortality and quality of life.
  
  
  METHODS
  Forty patients with severe coronary artery disease and dysfunction of LV (low ejection fraction <35%) underwent coronary artery bypass grafting in period of 3 years. Preoperative diagnostic of 40 patients was consisted of anamnesis, clinical exam, non-invasive methods EHO, MR and invasive diagnostic methods-cateterization. The major indication for surgery was severe anginal pain, heart failure symptoms and low ejection fraction. Internal mammary artery was used in all operated patients.
  
  
  RESULTS
  Average age of patients who have been operated was 59,8. In the present study, 81,3% were male and 18,8% female. We found one-vessel disease present in 2,5% (1/40) of patients, two -vessel disease in 40% (16/40), three-vessel disease in 42,5% (17/40) and four -vessel disease in 15% (6/40) of patients. One bypass grafting we implanted in 2,5% patients, two bypasses in 42,5%, three bypasses in 45 5%, and four bypasses in 10% of patients. Left ventricular ejection fraction assessed preoperativly was 18%-27% and postoperatively was improved to 31, 08% in period of 30 days.
  
  
  CONCLUSIONS
  In patients with left ventricular dysfunction, coronary artery bypass grafting can be performed safely with improvement in quality of life and in left ventricular ejection fraction.
authors.affiliation: Heart Center, Clinical Center of Sarajevo University, Sarajevo, Bosnia and Herzegovina.
authors.forename: Ilirijana
authors.initials: I
authors.lastname: Haxhibeqiri-Karabdic
authors.affiliation: Department of Anatomy, Faculty of medicine, University of Sarajevo, Sarajevo, Bosnia and Herzegovina.
authors.forename: Aida
authors.initials: A
authors.lastname: Hasanovic
authors.affiliation: Heart Center, University Clinical Center Tuzla, Tuzla, Bosnia and Herzegovina.
authors.forename: Emir
authors.initials: E
authors.lastname: Kabil
authors.affiliation: Heart Center, Clinical Center of Sarajevo University, Sarajevo, Bosnia and Herzegovina.
authors.forename: Slavenka
authors.initials: S
authors.lastname: Straus
mesh_terms: D000368:Aged; D017522:Bosnia and Herzegovina; D001026:Coronary Artery Bypass / Q000379:methods*; D003324:Coronary Artery Disease / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013318:Stroke Volume / Q000502:physiology*; D018487:Ventricular Dysfunction, Left / Q000503:physiopathology* / Q000601:surgery*; D016277:Ventricular Function, Left / Q000502:physiology*
keywords: coronary artery bypass-grafting; disfunction of LV; low ejection fraction