Towards safer colorectal surgery worldwide: Outcomes and benchmarks from the ESCP CORREA 2022 audit

Introduction: Benchmarking colorectal surgery outcomes informs quality improvement. The ESCP CORREA 2022 snapshot audit aimed to assess contemporary colorectal resection practices and short-term outcomes across European countries and beyond.Methods: An international prospective multicentre audit was conducted in which adults undergoing elective or emergency colorectal resection during a 6-week period (January-April 2022) at participating hospitals were included. Data on patient demographics, indications, surgical approach (open, laparoscopic or robotic) and 30-day postoperative outcomes (complications, reoperation and mortality) were collected for analysis. The outcomes were analysed and compared with those of previous audits to identify trends in colorectal surgery.Results: The study enrolled 3521 patients (56.8% men) from 216 hospitals across 53 countries. In 72.2% of the cases, the indication for resection was malignancy, followed by diverticular disease in 9.0%, Crohn's disease in 3.7% and ulcerative colitis in 2.3% of the cases. Of the surgeries, 74.4% were elective. Minimally invasive surgery was performed in 55.2% of the cases (48.7% laparoscopic and 6.5% robotic). Primary anastomosis was performed in 90.3% of the patients. The 30-day anastomotic leak rate was 7.96%; in malignant and benign diseases, the leak rates were 7.3% and 10.2%, respectively. The leak rates for right, left, anterior rectal resection, pouch and subtotal colectomy were 6.9%, 7.7%, 9.7%, 16.0% and 11.8%, respectively. In the multivariable analysis, the risk factors for leakage included male sex (9.3% vs. 6.3%, OR=0.69, 95% CI 0.51-0.95, p=0.023) and emergency surgery (11.4% vs. 7.1%, OR=1.58, 95% CI 1.10-2.27, p=0.013). Thirty-day mortality was 2.38%.Conclusions: This large international audit provides the status of the management of colorectal surgery. This shows that minimally invasive techniques are widely adopted, and 30-day mortality is low; however, anastomotic leak rates remain persistently high. These findings highlight the ongoing need for targeted research and quality-improvement initiatives to reduce anastomotic failure and improve outcomes of colorectal surgery.