Background: The purpose of this study was to further define the impact of primary surgery in the management of oropharyngeal squamous cell carcinoma (SCC).
Methods: Two hundred ninety-six patients with oropharyngeal SCC treated with primary surgery were included. Multivariable analysis and recursive partitioning analysis (RPA) identified predictors of survival and gastrostomy tube presence.
Results: Multivariable analysis identified that HPV negativity (p = .0002), presence of extranodal extension (p = .0025), and advanced T classification (p = .0081) were independent predictors of survival. For HPV-positive patients, surgical approach (p = .0111) and margin status (p = .0287) were significant predictors of survival. For HPV-negative patients, extranodal extension (p = .0021) and advanced T classification (p = .0342) were significant predictors of survival. Smoking status and advanced neck disease did not impact survival, and the addition of adjuvant chemotherapy did not confer survival benefit in HPV-positive or HPV-negative subgroups.
Conclusion: Independent predictors of survival are unique in patients with oropharyngeal SCC treated with primary surgery. © 2015 Wiley Periodicals, Inc. Head Neck 38: E1794-E1802, 2016.
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