“…[52] Besides, a retrospective cohort analysis based on the Surveillance, Epidemiology, and End Results (SEER) database indicated that surgical intervention could provide a survival benefit to elderly patients with early-stage PDAC (stages I–IIA) and these elderly patients could benefit from more radical operations. [53] One study by Ikenaga et al also showed there were no apparent differences in morbidity, mortality, or postoperative hospital stay between the young (≤79) and the elderly (≥80), however, the elderly underwent PD for PDAC, had shorter overall survival (OS) than those aged ≤79 years. [54] Additionally, Satoi et al have carried out a largest-scale multi-center retrospective study including 365 octogenarians in the surgery group and 99 octogenarians in the chemotherapy group, which clearly revealed a favorable prognosis in the surgery group (with median survival time: 20.6 months) relative to the chemotherapy group (with median survival time: 18.6 months) in the elderly.…”