Postoperative ileus (POI) after colorectal surgery is frequent and is a burden for national health authority because it increases the morbidity and the length of hospital stay. Some of the stage of the mechanism of POI are known and are now targeted to reduce its occurence but despite these measures, POI still happens in 10-30% of surgeries. The role of the intestinal microbiota in POI is unknown while it could be a new target to reduce its duration or its occurence.
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Composition of the feces microbiota before surgery
Timeframe: within the 2 last days before surgery
Composition of the feces microbiota after surgery
Timeframe: up to the first postoperative stools, an average of 3 postoperative days