The results of surgical treatment of 69 patients, suffering impassability of the gut hollow organs, were analyzed. There was established, that, while presence of intraabdominal hypertension, an early postoperative complications rate is increasing trustworthily. Intraabdominal pressure (IAP) raising, coexistent with intraabdominal postoperative complications presence, constitutes a prognostic factor, proving the presence of necessity to perform relaparotomy. Hospital lethality risk is determined by value of intraabdominal perfusion pressure. Results of the investigation witnesses the necessity to conduct a systemic monitoring of IAP in patients, suffering impassability of the gut hollow organs.