Bowel preparation before elective right colectomy: Multitreatment machine-learning analysis on 2,617 patients

Area of Science:

• Colorectal Surgery
• Surgical Site Infections
• Patient Outcomes

Background:

• Varied bowel preparation protocols (none, oral antibiotics, mechanical, or combination) are used for right colectomy.
• Limited research exists on right-sided ileocolic anastomoses compared to left-sided procedures.
• Propensity score weighting analysis is a robust method for evaluating interventions when randomized trials are unavailable.

Purpose of the Study:

• To evaluate the effectiveness of different bowel preparation strategies for elective right colectomy.
• To compare surgical site infections and anastomotic leakage rates across various preparation methods.
• To identify optimal preoperative protocols for right colectomy patients.

Main Methods:

• Machine-learning analysis of prospective data from 2,617 patients undergoing elective right colectomy.
• Utilized multiple-treatment propensity score weighting for bias reduction and external validity.
• Compared outcomes including surgical-site infections, anastomotic leakage, morbidity, reoperation, and readmission.

Main Results:

• Mechanical bowel preparation with oral antibiotics significantly reduced surgical-site infections (4.0%) compared to no preparation (5.0%).
• Mechanical bowel preparation alone increased surgical-site infections (8.6%).
• Oral antibiotics alone increased anastomotic leakage (4.8%) and major morbidity (6.7%).
• Mechanical bowel preparation with oral antibiotics significantly reduced readmissions (1.5%).

Conclusions:

• Mechanical bowel preparation combined with oral antibiotics is associated with decreased surgical-site infections after elective right colectomy.
• This combination strategy appears beneficial for reducing complications and improving patient outcomes.
• Further research may refine optimal bowel preparation protocols for specific colorectal procedures.