Parenteral Antibiotics Compared to Combination of Oral and Parenteral Antibiotics in Colorectal Surgery Prophylaxis

Exclusion Criteria

• •Patients who refuse to participate in the study.
• •Patients undergoing mechanical colon preparation the day before surgery.
• •Patients with rectal cancer
• •Patients with intra-abdominal sepsis before surgery (abscess, diverticulitis).
• •Patients who received preoperative antibiotics for any reason in the two weeks prior to surgery.
• •Patients with inflammatory bowel disease (ulcerative colitis, Crohn's disease and indeterminate colitis)
• •Patients presenting allergy to the drugs under study.
• •Patients that will not strictly follow the assigned prophylaxis regimen
• •Patients undergoing urgent surgery (\<24h)