Postoperative day 3 geriatric nutritional risk index as an early warning marker for anastomotic leakage after colorectal cancer surgery: A retrospective cohort study
Anastomotic leakage (AL) is a serious complication after colorectal cancer (CRC) surgery, and early postoperative risk stratification remains clinically challenging. The Geriatric Nutritional Risk Index (GNRI) integrates serum albumin and body weight information, but its role as a postoperative marker and its increment...