Oncotarget

Research Papers:

Combined surgery and radiation improves survival of tonsil squamous cell cancers

Anurag K. Singh _, Christina Mimikos, Adrienne Groman, Shiva Dibaj, Alexis J. Platek, David M. Cohan, Wesley L. Hicks Jr, Vishal Gupta, Hassan Arshad, Moni A. Kuriakose, Graham W. Warren and Mary E. Platek

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Oncotarget. 2017; 8:112442-112450. https://doi.org/10.18632/oncotarget.20122

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Abstract

Anurag K. Singh1, Christina Mimikos2, Adrienne Groman3, Shiva Dibaj3, Alexis J. Platek1, David M. Cohan2, Wesley L. Hicks Jr2, Vishal Gupta2, Hassan Arshad2, Moni A. Kuriakose2, Graham W. Warren4,5 and Mary E. Platek2,6

1Department of Radiation Medicine, Roswell Park Cancer Institute, Buffalo, NY, USA

2Department of Head and Neck/Plastic and Reconstructive Surgery, Roswell Park Cancer Institute, Buffalo, NY, USA

3Department of Biostatistics, Roswell Park Cancer Institute, Roswell Park Cancer Institute, Buffalo, NY, USA

4Department of Radiation Oncology, Medical University of South Carolina, Charleston, SC, USA

5Department of Cell and Molecular Pharmacology, Medical University of South Carolina, Charleston, SC, USA

6Department of Health, Nutrition and Dietetics, Buffalo State College (SUNY), Buffalo, NY, USA

Correspondence to:

Anurag K. Singh, email: Anurag.Singh@Roswellpark.org

Keywords: tonsillar fossa, TORS, SCCHN, HPV, IMRT

Received: January 13, 2017     Accepted: July 31, 2017     Published: August 10, 2017

ABSTRACT

Objective: The study evaluated the addition of surgery (S) to radiation (RT) on survival of squamous cell carcinomas (SCC) of tonsillar-fossa (TF) in a modern cohort with similar epidemiology and treatment as current patients.

Study Design: Retrospective analysis utilizing Surveillance, Epidemiology, and End Results (SEER) Program data.

Results: For all stages combined TF patients who received S+RT had superior OS (p < 0.01) and DSS (p < 0.01). For each stage OS and DSS was superior for S+RT (p < 0.05). In multivariate analysis, HRs for OS were statistically significantly higher for TF patients (stage 2, 3, and 4) receiving RT alone (p < 0.001).

Materials and Methods: TF SCC patients treated with either S+RT or RT alone between 2004 and 2011 were examined (n = 6,476). Primary outcome measures included overall survival (OS) and disease specific survival (DSS). Cox proportional hazard ratios (HR) were estimated for patients treated with S+RT compared to RT alone.

Conclusions: OS and DSS were superior for all stages combined and for stages 2, 3, and 4 in TF patients who received S+RT compared to RT alone.


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