The results of treatment of 67 patients, admitted to the hospital clinic for the spread peritonitis and ileus were studied. In 37 of them (main group) the intestinal decompression and hypothermic lavage was performed, in 30 (control group)--intestinal decompression only. The operation character and intensive therapy volume in patients of both groups were similar. In conduction of hypothermic intestinal lavage the accelerated restoration of intestinal peristalsis was noted, as well as the peritonitis and intoxication symptoms elimination. Duration of treatment of patients in stationary in the main and control groups had constituted, accordingly (11.6 +/- 0.73) and (16.8 +/- 1.03) days, lethality--8.1 and 13.8, frequency of complications--10.8 and 30%.