Abstract
Objective
This study aimed to investigate the clinicopathological factors that influence recurrence and survival in patients who undergo operations for T3–4 hypopharyngeal squamous cell carcinomas (SCCs).
Materials and Methods
One hundred and five patients who underwent surgery between 2001 and 2008 for advanced hypopharyngeal SCCs were consecutively enrolled and reviewed.
Results
The pretreatment neutrophil-to-lymphocyte ratio (NLR; median 3.22, range 0.62–46.50) was associated with disease recurrence and patient survival. A difference in the 5-year cumulative disease recurrence rate between patients with high (≥3.22) and low (<3.22) NLRs was significant (60.4 and 36.5%, respectively; p = 0.004). A multivariate analysis confirmed that an NLR ≥3.22 was an independent indicator of a poor prognosis for advanced hypopharyngeal SCC, as per the following parameters: overall survival (hazard ratio [HR] 2.53, 95% confidence interval [CI] 1.48–4.30, p = 0.001), disease-specific survival (HR 2.45, 95% CI 1.38–4.34, p = 0.002), and disease-free survival (HR 2.18, 95% CI 1.24–3.83, p = 0.007). Additional prognostic factors per the survival analyses included lymph node density, surgical margin, lymphovascular invasion, and perineural invasion.
Conclusions
An NLR ≥3.22 is associated with a higher risk of disease recurrence and poor survival in patients with T3–4 hypopharyngeal SCCs. We propose the use of the NLR to broaden the current TNM staging system; the development of a more effective treatment protocol for patients with high NLRs will be essential.
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Acknowledgement
The authors thank American Journal Experts for manuscript editing, and Chien-Hao Chen, PhD, ESTAT Statistical Consulting Co., Ltd, Taipei, Taiwan, for statistical analyses advisement and revision.
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The authors declare that they have no competing interest.
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Lo, WC., Wu, CT., Wang, CP. et al. The Pretreatment Neutrophil-to-Lymphocyte Ratio is a Prognostic Determinant of T3–4 Hypopharyngeal Squamous Cell Carcinoma. Ann Surg Oncol 24, 1980–1988 (2017). https://doi.org/10.1245/s10434-017-5865-8
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DOI: https://doi.org/10.1245/s10434-017-5865-8