APPLICATION OF LOCAL HEMOSTATIC AGENTS FOR STRENGTHENING THE SEAMS OF COLONIC ANASTOMOSES

Area of Science:

• Gastroenterology and Surgical Oncology
• Colorectal Surgery

Background:

• Colonic anastomotic leakage is a significant cause of postoperative morbidity and mortality.
• Reinforcement techniques aim to improve the integrity of surgical connections.

Purpose of the Study:

• To evaluate the clinical outcomes of a combined technique using a three-row circular stapler and a collagen-fibrin patch (Tachocomb) for colonic anastomoses.
• To assess the incidence of anastomotic leakage and early postoperative complications.

Main Methods:

• Retrospective cohort analysis of 272 patients undergoing colon or rectal resection.
• Comparison between a control group (n=173) using a two-row stapler and an experimental group (n=99) using a three-row stapler with Tachocomb.
• Primary outcome: incidence of anastomotic leakage; secondary outcomes: relative risk, absolute risk reduction, number needed to treat.

Main Results:

• Anastomotic leakage occurred in 5.2% of the control group versus 3.0% in the experimental group.
• The combined technique showed a lower absolute leakage rate (2.2% reduction) with a number needed to treat of 46.
• The difference in leakage rates was not statistically significant (p=0.55).

Conclusions:

• The combined use of a three-row stapler and Tachocomb demonstrated a lower observed rate of colonic anastomotic leakage.
• The retrospective design and small sample size limit definitive conclusions on the independent contributions of the stapler and patch.
• Prospective randomized studies are necessary to validate these findings and confirm the technique's efficacy.