Clinical Scorecard: Impact of Transanal Tube Insertion on Reducing Anastomotic Leakage in Rectal Cancer Surgery with Confirmed Adequate Perfusion via Indocyanine Green Fluorescence Imaging

At a Glance

Key Highlights

• Anastomotic leakage remains a significant complication despite confirmed adequate perfusion via ICG imaging.
• Transanal tube placement may reduce intraluminal pressure at the anastomotic site, potentially lowering leakage risk.
• The study retrospectively analyzed 211 patients, comparing outcomes with and without transanal tube placement after confirming adequate perfusion.

Guideline-Based Recommendations

Diagnosis

• Use intraoperative indocyanine green (ICG) fluorescence imaging to confirm adequate anastomotic perfusion during rectal cancer surgery.

Management

• Consider transanal tube placement postoperatively to reduce intraluminal pressure and facilitate intestinal content passage in patients with confirmed adequate perfusion.
• Adjust transection line intraoperatively if ICG imaging shows poor perfusion before anastomosis.

Monitoring & Follow-up

• Monitor for clinical signs of anastomotic leakage within 90 days postoperatively using imaging (CT scan or enterography) and drain output.
• Classify severity of leakage using Clavien–Dindo grading system.

Risks

• Anastomotic leakage can occur despite adequate perfusion, influenced by factors such as anastomotic tension and intraluminal pressure.
• Transanal tube placement decisions should be individualized based on patient anatomy and surgeon discretion.

Patient & Prescribing Data

211 patients undergoing low anterior resection for rectal cancer with ICG-confirmed adequate anastomotic perfusion

56 patients received transanal tube placement; tube length and insertion depth were tailored by surgeon based on anatomy; tube typically left in place for five days using open gravity drainage.

Clinical Best Practices

• Perform intraoperative ICG fluorescence imaging to ensure adequate anastomotic perfusion before completing anastomosis.
• Use transanal tube drainage selectively to reduce intraluminal pressure and potentially decrease anastomotic leakage risk.
• Tailor transanal tube length and insertion depth to individual patient anatomy and tumor location.
• Employ standardized postoperative monitoring protocols for early detection of anastomotic leakage.
• Document and classify postoperative complications using Clavien–Dindo grading for consistent outcome assessment.

References

• Rectal cancer prevalence and surgical advances
• Total mesorectal excision benefits
• Anastomotic leakage risk factors
• ICG fluorescence imaging for perfusion assessment
• Transanal tube placement to reduce leakage