Clinical Report: Systematic Review of Probiotic Effectiveness in Decreasing Postoperative Infections

Overview

This systematic review evaluates the efficacy of perioperative probiotics in reducing postoperative infections following gastrointestinal surgery. The findings suggest that while overall efficacy narrowly misses statistical significance, multi-strain Lactobacillus and Bifidobacterium formulations significantly reduce the risk of infectious complications.

Background

Postoperative infections are a leading cause of morbidity and mortality in gastrointestinal surgery, contributing to increased healthcare costs. Despite advancements in surgical techniques and protocols, the incidence of infections remains significant. Probiotics have emerged as a potential strategy to mitigate these risks by restoring gut microbiota and enhancing the intestinal barrier.

Data Highlights

Key Findings

• Postoperative infections are a major cause of morbidity and mortality in gastrointestinal surgery.
• The pooled analysis indicated a potential benefit in reducing overall postoperative infections with an OR of 0.57.
• Subgroup analysis showed a statistically significant reduction in infections with multi-strain Lactobacillus and Bifidobacterium formulations (RR: 0.64).
• The absolute risk reduction for the multi-strain subgroup was 13.5%, with a number needed to treat (NNT) of 7.
• The overall efficacy of probiotics narrowly missed statistical significance, suggesting further investigation is warranted.
• Inclusion of probiotics in Enhanced Recovery After Surgery (ERAS) protocols may provide clinically meaningful benefits.

Clinical Implications

Healthcare professionals should consider the targeted use of multi-strain Lactobacillus and Bifidobacterium formulations in patients undergoing major gastrointestinal surgery to potentially reduce postoperative infections. However, the overall evidence for probiotics remains inconclusive, and adherence to established infection prevention protocols is essential.

Conclusion

The evidence suggests that while probiotics may not universally reduce postoperative infections, specific formulations show promise and warrant further investigation. Incorporating these findings into clinical practice could enhance patient outcomes in gastrointestinal surgery.

Related Resources & Content

1. Author(s)/Org, Source, Year -- Title
2. Techniques in Coloproctology, 2019 -- Preoperative Mechanical Bowel Preparation in Elective Colorectal Surgery
3. Evaluation of the Safety and Effectiveness of Gastrointestinal Motility Agents After Elective Colorectal Surgery, 2025
4. Targeted Digestive Tract Decontamination in Colorectal Surgery, 2022
5. The American Society of Colon and Rectal Surgeons Clinical Practice Guidelines for Preventing Surgical Site Infection - PMC
6. Do Perioperative Probiotics/Synbiotics Reduce Postoperative Infection Rates Following Elective Colorectal Surgery? A Systematic Review and Meta-Analysis, 2025
7. WHO Global SSI Guidance
8. Do Perioperative Probiotics/Synbiotics Reduce Postoperative Infection Rates Following Elective Colorectal Surgery? A Systematic Review and Meta-Analysis - ScienceDirect