Psychological Evaluation According Colonic Colonization by Escherichia Coli of Patients After Colorectal Surgery

The purpose of this study is to determine whether the presence of pathogenic Escherichia coli in colon is associated with psychiatric disorders.

Inclusion Criteria: * patients operated on for colorectal cancer in the digestive surgery department of Clermont-Ferrand hospital * patients older than 18 years, * patients whose Escherichia coli colonization was analyzed after surgery * patients which are always followed by the digestive surgery department. Exclusion Criteria: * Patients with dementia will not be included, according to the MMSE score: * 22 if no grade * 23 if study certificate or CAP or college without patent * 25 if patent or school without the tray * 26 or more when bin