Rectal cancer surgery without mechanical bowel preparation.

Area of Science:

• Colorectal Surgery
• Surgical Oncology
• Gastrointestinal Surgery

Background:

• Recent studies question the utility of preoperative mechanical bowel preparation (MBP) in colorectal surgery.
• However, these studies often exclude patients undergoing rectal surgery.
• This highlights a need to evaluate MBP's role specifically in rectal cancer resections.

Purpose of the Study:

• To determine the safety and efficacy of performing rectal cancer surgery without preoperative mechanical bowel preparation (MBP).
• To assess postoperative outcomes in patients undergoing rectal cancer resection without MBP compared to those with MBP.

Main Methods:

• A retrospective analysis of 52 patients undergoing rectal cancer resection without MBP.
• Comparison with a matched cohort of 61 patients who received preoperative MBP.
• Assessment of overall morbidity, anastomotic leakage, infectious complications, and hospital stay.

Main Results:

• Patients without MBP had significantly lower overall morbidity (31% vs 51%) and shorter hospital stays (10 vs 12 days).
• No significant difference in symptomatic anastomotic leakage rates between groups (10% vs 8%).
• MBP was associated with a higher rate of infectious extra-abdominal complications (11% vs 0%).

Conclusions:

• Elective rectal cancer surgery can be safely performed without mechanical bowel preparation (MBP).
• Omitting MBP may lead to reduced postoperative morbidity and hospital stay.
• Further investigation into specific complication profiles is warranted.