[Effects of intra-operative colonic irrigation on colonic flora in patients with intestinal obstruction caused by left colonic carcinomas].

We studied the effects of intra-operative colonic irrigation on intestinal bacteria in patients with carcinomatous obstruction of the left colon. The results showed: The floral volume of aerobes and anaerobes in colonic content and mucosa in obstructive patients increased significantly (P < 0.01), but it was reduced obviously by intra-operative colonic irrigation (P < 0.01), reaching the level of that as in the nonobstructive patients who received oral antibiotics and mechanical intestinal preparation.