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Article

Concurrent chemoradiotherapy with S‑1 in patients with stage III‑IV oral squamous cell carcinoma: A retrospective analysis of nodal classification based on the neck node level

  • Authors:
    • Ryuji Murakami
    • Akiko Semba
    • Kenta Kawahara
    • Keiya Matsuyama
    • Akimitsu Hiraki
    • Masashi Nagata
    • Ryo Toya
    • Yasuyuki Yamashita
    • Natsuo Oya
    • Hideki Nakayama
  • View Affiliations / Copyright

    Affiliations: Department of Medical Imaging, Faculty of Life Sciences, Kumamoto University, Kumamoto 862‑0976, Japan, Department of Radiation Oncology, Faculty of Life Sciences, Kumamoto University, Kumamoto 862‑0976, Japan, Department of Oral and Maxillofacial Surgery, Faculty of Life Sciences, Kumamoto University, Kumamoto 862‑0976, Japan, Department of Diagnostic Radiology, Faculty of Life Sciences, Kumamoto University, Kumamoto 862‑0976, Japan
  • Pages: 140-144
    |
    Published online on: May 29, 2017
       https://doi.org/10.3892/mco.2017.1276
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Abstract

The aim of the present study was to retrospectively evaluate the treatment outcomes of concurrent chemoradiotherapy (CCRT) with S‑1, an oral fluoropyrimidine anticancer agent, for advanced oral squamous cell carcinoma (SCC). The study population consisted of 47 patients with clinical stage III or IV oral SCC, who underwent CCRT with S‑1. Pretreatment variables, including patient age, clinical stage, T classification, midline involvement of the primary tumor and nodal status, were analyzed as predictors of survival. In addition to the N classification (node‑positive, multiple and contralateral), the prognostic impact of the level of nodal involvement was assessed. Nodal involvement was mainly observed at levels Ib and II; involvement at levels Ia and III‑V was considered to be anterior and inferior extension, respectively, and was recorded as extensive nodal involvement (ENI). The 3‑year overall survival (OS) and progression‑free survival (PFS) rates were 37 and 27%, respectively. A finding of ENI was a significant factor for OS [hazard ratio (HR)=2.16; 95% confidence interval (CI): 1.03‑4.55; P=0.038] and PFS (HR=2.65; 95% CI: 1.32‑5.33; P=0.005); the 3‑year OS and PFS rates in patients with vs. those without ENI were 23 vs. 50% and 9 vs. 43%, respectively. The other variables were not significant. Therefore, CCRT with S‑1 may be an alternative treatment for advanced oral SCC; favorable outcomes are expected in patients without ENI.
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Copy and paste a formatted citation
Spandidos Publications style
Murakami R, Semba A, Kawahara K, Matsuyama K, Hiraki A, Nagata M, Toya R, Yamashita Y, Oya N, Nakayama H, Nakayama H, et al: Concurrent chemoradiotherapy with S‑1 in patients with stage III‑IV oral squamous cell carcinoma: A retrospective analysis of nodal classification based on the neck node level. Mol Clin Oncol 7: 140-144, 2017.
APA
Murakami, R., Semba, A., Kawahara, K., Matsuyama, K., Hiraki, A., Nagata, M. ... Nakayama, H. (2017). Concurrent chemoradiotherapy with S‑1 in patients with stage III‑IV oral squamous cell carcinoma: A retrospective analysis of nodal classification based on the neck node level. Molecular and Clinical Oncology, 7, 140-144. https://doi.org/10.3892/mco.2017.1276
MLA
Murakami, R., Semba, A., Kawahara, K., Matsuyama, K., Hiraki, A., Nagata, M., Toya, R., Yamashita, Y., Oya, N., Nakayama, H."Concurrent chemoradiotherapy with S‑1 in patients with stage III‑IV oral squamous cell carcinoma: A retrospective analysis of nodal classification based on the neck node level". Molecular and Clinical Oncology 7.1 (2017): 140-144.
Chicago
Murakami, R., Semba, A., Kawahara, K., Matsuyama, K., Hiraki, A., Nagata, M., Toya, R., Yamashita, Y., Oya, N., Nakayama, H."Concurrent chemoradiotherapy with S‑1 in patients with stage III‑IV oral squamous cell carcinoma: A retrospective analysis of nodal classification based on the neck node level". Molecular and Clinical Oncology 7, no. 1 (2017): 140-144. https://doi.org/10.3892/mco.2017.1276
Copy and paste a formatted citation
x
Spandidos Publications style
Murakami R, Semba A, Kawahara K, Matsuyama K, Hiraki A, Nagata M, Toya R, Yamashita Y, Oya N, Nakayama H, Nakayama H, et al: Concurrent chemoradiotherapy with S‑1 in patients with stage III‑IV oral squamous cell carcinoma: A retrospective analysis of nodal classification based on the neck node level. Mol Clin Oncol 7: 140-144, 2017.
APA
Murakami, R., Semba, A., Kawahara, K., Matsuyama, K., Hiraki, A., Nagata, M. ... Nakayama, H. (2017). Concurrent chemoradiotherapy with S‑1 in patients with stage III‑IV oral squamous cell carcinoma: A retrospective analysis of nodal classification based on the neck node level. Molecular and Clinical Oncology, 7, 140-144. https://doi.org/10.3892/mco.2017.1276
MLA
Murakami, R., Semba, A., Kawahara, K., Matsuyama, K., Hiraki, A., Nagata, M., Toya, R., Yamashita, Y., Oya, N., Nakayama, H."Concurrent chemoradiotherapy with S‑1 in patients with stage III‑IV oral squamous cell carcinoma: A retrospective analysis of nodal classification based on the neck node level". Molecular and Clinical Oncology 7.1 (2017): 140-144.
Chicago
Murakami, R., Semba, A., Kawahara, K., Matsuyama, K., Hiraki, A., Nagata, M., Toya, R., Yamashita, Y., Oya, N., Nakayama, H."Concurrent chemoradiotherapy with S‑1 in patients with stage III‑IV oral squamous cell carcinoma: A retrospective analysis of nodal classification based on the neck node level". Molecular and Clinical Oncology 7, no. 1 (2017): 140-144. https://doi.org/10.3892/mco.2017.1276
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