Short-term Outcomes of Full Bowel Preparation (MBP+OA) for Colon Cancer Resections Versus no Bowel Preparation

Inclusion Criteria: * histologically confirmed adenocarcinoma of the colon (caecum, ascending, transverse, descending, sigmoid) * clinical stage T1-4aN0-2M0-1 (distant metastases must be resectable) * indications for surgical colonic resection * ECOG status 0-2 * At least 18 years of age * Written informed consent Exclusion Criteria: * Medical or psychiatric conditions that compromise the patient's ability to give informed consent or comply with the study protocol * Pregnancy or breast feeding * Medical contraindications for surgical treatment * Any use of antibiotics 30 days prior to inclusion * Functioning stoma * Contraindications for use of MBP or OA drugs or their components * Indications for mandatory MBP (planned intraoperative colonoscopy etc) * Indications for obstructive resection * Acute bowel obstruction, bleeding or perforation * Other malignancies not in remission