Inadvertent perforation during rectal cancer resection in Norway

Area of Science:

• Colorectal Surgery
• Surgical Oncology
• Patient Safety

Background:

• Inadvertent bowel or tumor perforation is a known complication during rectal cancer resection.
• Mesorectal excision is a standard surgical technique in Norway.

Purpose of the Study:

• To evaluate intraoperative perforation rates after implementing mesorectal excision for rectal cancer.
• To identify risk factors and outcomes associated with intraoperative perforation.

Main Methods:

• Prospective national cohort study.
• 2873 patients undergoing major rectal carcinoma resection.
• Data collected from 54 Norwegian hospitals (November 1993 - December 1999).

Main Results:

• Overall perforation rate was 8.1%.
• Higher risk of perforation in abdominoperineal resection (OR 5.6) and patients aged 80+ (OR 2.0).
• Perforation linked to increased 5-year local recurrence (28.8% vs 9.9%) and reduced survival (41.5% vs 67.1%).

Conclusions:

• Abdominoperineal resection and advanced age (80+) are significant risk factors for intraoperative perforation.
• Perforation is associated with poorer oncological outcomes, including higher local recurrence and lower survival rates.
• Minimizing intraoperative perforation is essential for improving rectal cancer treatment outcomes.