Minimizing adjuvant treatment after transoral robotic surgery through surgical margin revision and exclusion of radiographic extracapsular extension: A Prospective observational cohort study.

Minimizing adjuvant treatment after transoral robotic surgery through surgical margin revision and exclusion of radiographic extracapsular extension: A Prospective observational cohort study.

Head Neck. 2017 Feb 11;:

Authors: Morisod B, Venara-Vulpe II, Alzuphar S, Monnier Y, Bongiovanni M, Hagmann P, Bouchaab H, Bourhis J, Simon C

Abstract
BACKGROUND: We investigated in a prospective cohort of patients treated with trans-oral robotic surgery (TORS) for oropharyngeal cancer (OPC), who were selected for the absence of radiographic extra-capsular extension (ECS) and surgically revised for inadequate margins, the possibility of reducing adjuvant radiation (RT)/chemo-radiation therapy (CRT) without jeopardizing tumor control and functional outcome.
METHODS: We conducted a prospective observational cohort of patients treated with TORS for oropharyngeal cancer.
RESULTS: Twenty-nine patients with T1/2N0 to N2B stage cancers were treated with TORS. Forty-five percent of them were treated for secondary primaries. Nine of 29 patients (31%) were revised for close/positive margins. Adjuvant RT was prescribed for 2 of 19 patients with early squamous cell carcinoma (SCCs) and CRT for 1 of 10 patients with advanced oropharyngeal SCCs. Overall survival (OS), disease-specific survival (DSS), and locoregional control at 2 years were 85%, 96%, and 93%, respectively. Posttreatment Functional Outcome Swallowing Scale (FOSS) scores worsened with prior or adjuvant RT, local recurrence, site, and revision for margins.
CONCLUSION: Patients with early and moderately advanced oropharyngeal SCC selected for radiographic ECS and revised for inadequate margins have excellent tumor control and favorable functional recovery. © 2017 Wiley Periodicals, Inc. Head Neck, 2017.

PMID: 28188953 [PubMed - as supplied by publisher]

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