Background: Coronary artery bypass graft surgery (CABG) in patients with left ventricular dysfunction was associated with improved survival compared to medical treatment and coronary stenting. However, the risk of surgery is still high. We aimed to evaluate the short-term outcome of CABG in patients with an ejection fraction of ≤ 40%. Patient and Methods: Forty patients with ejection fraction (EF) ≤40% underwent CABG between December 2015 and August 2019. Patients with moderate to severe mitral regurgitation, concomitant severe liver and kidney impairment, re-operative CABG, who had concomitant procedures with CABG were excluded. The mean age was 56.72±12.44 years; 30 patients (75%) were males. Twenty-six patients (65%) were diabetics, 28 patients (70%) were hypertensive, 18 patients (45%) were dyslipidemic, 22 patients (55%) were smokers, and 4 patients (10%) were obese. The preoperative ejection fraction ranged from 20% to 40%, with a mean of 34.62% Results: The mean cardiopulmonary bypass time was 90.8 minutes, and ischemic time was 49.8 minutes. Seventeen patients (42.5%) needed inotropic support intraoperatively, and 16 patients (40%) needed an intraaortic balloon. Five patients (12.5%) had postoperative ischemia, one patient (2.5%) had re-exploration for bleeding, and one patient (2.5%) had acute renal failure. The mean ICU stay was 70.5± 45.63 hours, hospital stay was 8.9± 4 days, and three patients (7.5%) had operative mortality. After 6 months operatively, the ejection fraction improved to reach a mean value of 39.87± 5.02% compared to the preoperative ejection fraction of 32.8± 8.8%. (p<0.001) Conclusion: Coronary artery bypass grafting can be performed safely in patients with depressed left ventricular function with low short-term morbidity and mortality. CABG could lead to the improvement in the ejection fraction in patients with evidence of viable myocardium.

The six populations i.e., P 1 , P 2 , F 1 , F 2 , BCI and BCII of the three crosses (Sids 4 x Sids 1) (Sids 1x Giza 168) and (Giza 168x Gemmeiza 9) were used to estimate genetic variance, gene action, heterosis, inbreeding depression, heritability and genetic advance for the days to heading, days to maturity and plant height as well as yield and its components traits. The experiment was conducted at Sids Agric. Res. Stan. (Beni suef governorate) during the three successive growing