The impact of geriatric-specific variables on long-term outcomes in patients with hepatopancreatobiliary and colorectal cancer selected for resection

Background: Preoperative geriatric-specific variables (GSV) influence short-term morbidity in surgical patients, but their impact on long-term survival in elderly patients with cancer remains undefined. Study design: This observational cohort study included patients >= 65 years who underwent hepatopancreatobiliary or colorectal operations for malignancy between 2014 and 2020. Individual patient data included merged ACS NSQIP data, Procedure Targeted, and Geriatric Surgery Research variables. Patients were stratified by age: 65-74, 75-84, and >= 85 and presence of these GSVs: mobility aid, preoperative falls, surrogate signed consent, and living alone. Bivariable and multivariable analyses were used to evaluate 1-year mortality and postoperative discharge to facility. Results: 577 patients were included: 62.6 % were 65-74 years old, 31.7 % 75-84, and 5.7 % >= 85. 96 patients were discharged to a facility with frequency increasing with age group (11.4 % vs 22.4 % vs 42.4 %, respectively, p < 0.001). 73 patients (12.7 %) died during 1-year follow-up, 32.9 % from cancer recurrence. One-year mortality was associated with undergoing hepatopancreatobiliary operations (p = 0.017), discharge to a facility (p = 0.047), and a surrogate signing consent (p = 0.035). Increasing age (p < 0.001), hepatopancreatobiliary resection (p = 0.002), living home alone (p < 0.001), and mobility aid use (p < 0.001) were associated with discharge to a facility. Conclusion: Geriatric-specific variables, living alone and use of a mobility aid, were associated with discharge to a facility. A surrogate signing consent and discharge to a facility were associated with 1-year mortality. These findings underscore the importance of preoperative patient selection and optimization, efficacious discharge planning, and informed decision-making in the care of elderly cancer patients.