Objectives: To depict and compare short- and long-term outcomes of elective vs. emergency right colectomy of octogenarian patients. Methods: A retrospective cohort study of octogenarians who underwent elective or emergency right colectomy for cancer.

Post-operative outcomes as well as long-term survival were compared between the two groups. Results: Overall, 107 patients underwent surgery (21 urgent, 86 elective).

Patients at the emergency surgery group were older than at the elective group (median age of 86.9 vs. 83.3 y, respectively, p = 0.004).

More patients in the emergency surgery group had dementia (19% vs. 5.8%, p = 0,058),were living in long-term care facilities (19% vs. 2.3% respectively; p = 0.013), were functionally dependent (57.1% vs. 19.0%, p = 0.021) and had advance disease stage (p = 0.001).

They had higher rates of postoperative mortality (19% vs. 1.2%, p = 0.009) and complications (71.4% vs. 31.6%, p = 0.002) rates. Mean survival was 31.2 ± 4.6 months in emergency surgery and 60.9 ± 3.3 months in elective surgery (p ＜ 0.001). Surgery timing, stage of disease and functional status were associated with lower survival on multivariate analysis.

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