Volume 37, Issue 1 pp. 52-63
Original Article

Histologic and systemic prognosticators for local control and survival in margin-negative transoral laser microsurgery treated oral cavity squamous cell carcinoma

Parul Sinha MBBS, MS

Parul Sinha MBBS, MS

Department of Otolaryngology – Head and Neck Surgery, Washington University School of Medicine, St. Louis, Missouri

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Mitra Mehrad MD

Mitra Mehrad MD

Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri

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Rebecca D. Chernock MD

Rebecca D. Chernock MD

Department of Otolaryngology – Head and Neck Surgery, Washington University School of Medicine, St. Louis, Missouri

Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri

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James S. Lewis Jr MD

James S. Lewis Jr MD

Department of Otolaryngology – Head and Neck Surgery, Washington University School of Medicine, St. Louis, Missouri

Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri

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Samir K. El-Mofty DMD, PhD

Samir K. El-Mofty DMD, PhD

Department of Otolaryngology – Head and Neck Surgery, Washington University School of Medicine, St. Louis, Missouri

Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri

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Ningying Wu PhD

Ningying Wu PhD

Department of Biostatistics, Washington University School of Medicine, St. Louis, Missouri

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Brian Nussenbaum MD

Brian Nussenbaum MD

Department of Otolaryngology – Head and Neck Surgery, Washington University School of Medicine, St. Louis, Missouri

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Bruce H. Haughey MBChB, MS, FRACS

Corresponding Author

Bruce H. Haughey MBChB, MS, FRACS

Department of Otolaryngology – Head and Neck Surgery, Washington University School of Medicine, St. Louis, Missouri

Corresponding author: B. H. Haughey, Department of Otolaryngology Head and Neck Surgery, 660 S. Euclid Avenue, Campus Box 8115, St. Louis, MO 63110. E-mail: [email protected]Search for more papers by this author
First published: 08 November 2013
Citations: 13

This work was presented at the American Head and Neck Society annual meeting, Orlando, Florida, April 10, 2013.

ABSTRACT

Background

Appreciable local recurrence rates observed in patients with margin-negative, transoral laser microsurgery (TLM)-treated oral cavity squamous cell carcinoma (SCC) necessitate identification of new prognosticators for local control and survival. A histopathologic index (Brandwein–Gensler score [BGS]) and intrinsic/iatrogenic/chronic conditions causing immune compromise are investigated.

Methods

From a prospectively assembled database of TLM-treated oral cavity SCC, specimens for 60 patients with a minimum of 2-years follow-up could undergo BGS assignment. Local control, disease-specific survival (DSS), and overall survival (OS) were study endpoints.

Results

“Low-BGS” was recorded in 28 patients (47%) and “high-BGS” in 32 patients (53%), whereas immune compromise was observed in 18%. In multivariate analyses, immune compromise was the only predictor for local control. T classification and immune compromise were prognostic for DSS and OS. “High-BGS” was prognostic only for OS.

Conclusion

“High-BGS” was associated with recurrences but immune compromise was the most significant predictor of local control and survival in margin-negative, TLM-treated oral cavity SCC. Strategies that maintain/restore tumor-specific immune responses in immune compromised oral cavity SCC hosts need to be developed. © 2014 Wiley Periodicals, Inc. Head Neck 37: 52–63, 2015

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