Anastomotic leak after double-stapled low colorectal resection

Area of Science:

• Colorectal Surgery
• Surgical Oncology
• Oncologic Therapies

Background:

• Anastomotic leaks are a significant complication following double-stapled low anterior resection.
• Several factors, including patient condition, anastomosis level, and treatment modalities, influence leak rates.

Purpose of the Study:

• To identify surgical and intraperitoneal chemotherapy-related risk factors for anastomotic leaks after low colorectal resection.
• Focus on patients with a consistent rectal stump length.

Main Methods:

• Retrospective analysis of 165 patients undergoing double-stapled low anterior resection.
• Comparison of leak rates across groups: surgery alone, surgery with early postoperative intraperitoneal chemotherapy, and surgery with hyperthermic intraoperative and early postoperative intraperitoneal chemotherapy.
• Univariate and multivariate analysis of factors including extent of colon resection and treatment type.

Main Results:

• Leak rate increased with the extent of proximal colon resection, with removal of the left colon showing a 2.7 odds ratio for disruption.
• Leak rates: surgery only (6%), normothermic intraperitoneal chemotherapy (5%), and hyperthermic intraperitoneal chemotherapy (20%).
• A full length of residual colon was associated with a 1% leak rate.

Conclusions:

• Extent of proximal colon resection is a key factor in anastomotic disruption after low colorectal resection.
• Normothermic intraperitoneal chemotherapy does not compromise anastomotic integrity.
• Hyperthermic intraperitoneal chemotherapy is associated with increased leak rates, particularly when extensive colon resection is performed.