Purpose: gastrointestinal complication (GIC) following open heart surgery usually are rare but with high morbidity and mortality. The aim of this study was to see the outcome of these patients after complication, compared with a similar study found in literature. Identifying risk factors preoperatively and postoperatively in our patient’s series, for GIC.Materials and methods: Between January 2012 and December 2017 from 1990 operated cardiac patient 34 of them developed GIC, presenting gastro duodenal bleeding due to active ulcer, liver failure, pancreatitis, cholecystitis, or intestinal ischemia. We performed a retrospective analysis.Results: From all consecutive patient only 1.7 % developed GIC. Mortality rate was 55.8%, especially 100 % mortality in intestinal ischemia patient. Regarding risk factors, those were the same found in other similar study (age, atherosclerosis disease, by pass time, postoperative ARF, Low cardiac output syndrome.)Conclusion: GIC after cardiac surgery are rare but when it happens the mortality is very high not even of late diagnosis. In ages patients, diabetes, long by pass time, long hypoperfusion state. It is recommended to be alert for GIC for detection in early phase, and for reducing as much as possible morbidity and mortality.