The study included 130 patients with gastric cancer, who underwent radical surgery in the period from 2006 to 2009 and manifested acute pancreatitis during the postoperative period.In 22,3% cases (29 patients) hyper-á-amylasemia was slightly increased only once, so specific treatment has not been necessary and a classical postoperative treatment was sufficient. The first group (typical surgeries) consisted of 40 patients, the second group (expanded and combined surgeries) was formed of 61 patients. The incidence of postoperative acute pancreatitis is increased in gastrectomy (57,69%) compared with gastric resection (33,33%), having the highest rate in excision of gastric stump (100%), while mortality caused by pancreonecrosis remains at an almost constant rate (2,5 to 4% ). The average duration of hyper-á-amylasemia depends on the type of the treatment and represents 2-7 days for patients treated with Contrical only and 2-4 days for patients who received Sandostatine as well. In 17 patients the hyper-áamylasemia lasted between 8 and 11 days (because of the onset of pancreonecrosis), which is explained by the delayed initiation of treatment with Sandostatine, only from the 4-th day of the postoperative period.