Risk of Life-Threatening Complications After Colorectal Cancer Surgery: A Japanese Multicenter Study

Area of Science:

• Colorectal Surgery
• Patient Safety
• Geriatric Medicine

Background:

• Aging populations lead to increased surgeries in frail individuals.
• Patients with poor general condition face elevated risks of severe postoperative complications and mortality.
• Colorectal surgery presents unique challenges for high-risk patient groups.

Purpose of the Study:

• To identify predictors of life-threatening complications in patients undergoing colorectal surgery.
• To analyze clinical features associated with severe postoperative outcomes.
• To inform risk assessment and patient counseling for high-risk surgical candidates.

Main Methods:

• Multicenter study of 4164 consecutive colorectal surgery patients (2016-2023).
• Comparison of clinical features between patients with (LT group, n=31) and without (no-LT group, n=4133) life-threatening complications.
• Multivariate analysis to determine independent predictors of severe complications.

Main Results:

• Life-threatening complications occurred in 0.7% of patients.
• The LT group had higher age (80 vs. 71 years), lower BMI (19.7 vs. 22.0 kg/m²), and more frequent poor performance status (54.8% vs. 10.4%) and open surgery (25.8% vs. 9.0%).
• Independent predictors included high age (OR 2.268), poor performance status (OR 7.714), and open surgery (OR 1.792).

Conclusions:

• High age, poor performance status, and open surgery are significant predictors of life-threatening complications in colorectal surgery.
• Detailed preoperative risk assessment and counseling are crucial for at-risk patients.
• Thorough examination of surgical indications and approaches is necessary for patients with elevated risk profiles.