Association of comorbidity score with perioperative outcomes following transoral robotic surgery: National analysis

Background: The association of comorbidities with perioperative outcomes after transoral robotic surgery (TORS) is not well-defined in the literature. Methods: Using the National Cancer Database, 4004 patients with T1-T2 oropharyngeal cancer between 2010 and 2017 were stratified based on their Charlson–Deyo Comorbidity Class (CDCC). Thirty-day unplanned readmissions, 30-day mortality, and 90-day mortality were compared using chi-square test and logistic regression. Hospital length of stay (LOS) was compared using the Kruskal–Wallis test. Results: LOS was greater for patients with CDCC 2 or 3 compared to CDCC 0 or 1 (p < 0.001). Increasing age and CDCC ≥3 were associated with 30-day mortality (CDCC ≥3: odds ratio [OR] 5.55, 95% confidence interval [CI] 1.59–19.45). CDCC ≥3 (OR 2.61, 95%CI 1.09–6.27) was significantly associated with 30-day readmissions. Conclusion: This national analysis demonstrates greater rates of unplanned 30-day readmissions, longer hospitalizations, and increased 30- and 90-day mortality after TORS in patients with CDCC ≥3.