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Itami J, Kobayashi K, Mori T, Honma Y, Kubo Y, Murakami N, Omura G, Okuma K, Inaba K, Takahashi K, Kashihara T, Shimizu Y, Takahashi A, Nakayama Y, Matsumoto F, Yoshimoto S, Igaki H. Non-Robustness of Ang’s Risk Classification in Human Papillomavirus-Related Oropharyngeal Squamous Cell Carcinoma in Japanese Patients. Cancers (Basel) 2022; 14:cancers14102442. [PMID: 35626047 PMCID: PMC9139843 DOI: 10.3390/cancers14102442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Revised: 05/13/2022] [Accepted: 05/13/2022] [Indexed: 02/01/2023] Open
Abstract
Background: Validity of the risk classification by Ang for human papillomavirus (HPV)-related oropharyngeal squamous cell carcinoma (OPSCC) remains to be studied in the patients treated by modalities other than chemoradiotherapy and in Japanese patients. Materials and Methods: Between 2010 and 2018, 122 patients with HPV-related OPSCC in stages III and IV by the TNM classification 7th edition (TNM-7) were treated curatively at a single institution in Japan. The median age was 62.7 years. Over 50% of the patients underwent surgery with or without adjuvant therapy. The influence of multiple factors on survival was analyzed. Results: The amount of smoking dichotomized at 10 pack-year, which was used in Ang’s risk classification, was not predictive of prognosis, and Ang’s risk classification was not significantly influential on prognosis in multivariate analysis. In the patients treated with definitive radiation therapy, Ang’s risk classification was not predictive of the prognosis in univariate analysis. The impact of smoking was significant only in the patients undergoing the definitive operation. Conclusions: Ang’s risk classification was not robust in predicting the prognosis of general Japanese HPV-related OPSCC patients. The amount of smoking might have different prognostic influences depending on the therapeutic method.
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Affiliation(s)
- Jun Itami
- Department of Radiation Oncology, National Cancer Center Hospital, Tokyo 104-0045, Japan; (N.M.); (K.O.); (K.I.); (K.T.); (T.K.); (Y.S.); (A.T.); (Y.N.); (H.I.)
- Shin-Matsudo Accuracy Radiation Therapy Center, Shin-Matsudo Central General Hospital, Chiba 270-0034, Japan
- Correspondence: ; Tel.: +81-47-345-1111
| | - Kenya Kobayashi
- Department of Head and Neck Surgical Oncology, National Cancer Center Hospital, Tokyo 104-0045, Japan; (K.K.); (G.O.); (F.M.); (S.Y.)
| | - Taisuke Mori
- Department of Pathology, National Cancer Center Hospital, Tokyo 104-0045, Japan;
| | - Yoshitaka Honma
- Department of Head and Neck Medical Oncology, National Cancer Center Hospital, Tokyo 104-0045, Japan;
| | - Yuko Kubo
- Department of Diagnostic Radiology, National Cancer Center Hospital, Tokyo 104-0045, Japan;
| | - Naoya Murakami
- Department of Radiation Oncology, National Cancer Center Hospital, Tokyo 104-0045, Japan; (N.M.); (K.O.); (K.I.); (K.T.); (T.K.); (Y.S.); (A.T.); (Y.N.); (H.I.)
| | - Go Omura
- Department of Head and Neck Surgical Oncology, National Cancer Center Hospital, Tokyo 104-0045, Japan; (K.K.); (G.O.); (F.M.); (S.Y.)
| | - Kae Okuma
- Department of Radiation Oncology, National Cancer Center Hospital, Tokyo 104-0045, Japan; (N.M.); (K.O.); (K.I.); (K.T.); (T.K.); (Y.S.); (A.T.); (Y.N.); (H.I.)
| | - Koji Inaba
- Department of Radiation Oncology, National Cancer Center Hospital, Tokyo 104-0045, Japan; (N.M.); (K.O.); (K.I.); (K.T.); (T.K.); (Y.S.); (A.T.); (Y.N.); (H.I.)
| | - Kana Takahashi
- Department of Radiation Oncology, National Cancer Center Hospital, Tokyo 104-0045, Japan; (N.M.); (K.O.); (K.I.); (K.T.); (T.K.); (Y.S.); (A.T.); (Y.N.); (H.I.)
| | - Tairo Kashihara
- Department of Radiation Oncology, National Cancer Center Hospital, Tokyo 104-0045, Japan; (N.M.); (K.O.); (K.I.); (K.T.); (T.K.); (Y.S.); (A.T.); (Y.N.); (H.I.)
| | - Yuri Shimizu
- Department of Radiation Oncology, National Cancer Center Hospital, Tokyo 104-0045, Japan; (N.M.); (K.O.); (K.I.); (K.T.); (T.K.); (Y.S.); (A.T.); (Y.N.); (H.I.)
| | - Ayaka Takahashi
- Department of Radiation Oncology, National Cancer Center Hospital, Tokyo 104-0045, Japan; (N.M.); (K.O.); (K.I.); (K.T.); (T.K.); (Y.S.); (A.T.); (Y.N.); (H.I.)
| | - Yuko Nakayama
- Department of Radiation Oncology, National Cancer Center Hospital, Tokyo 104-0045, Japan; (N.M.); (K.O.); (K.I.); (K.T.); (T.K.); (Y.S.); (A.T.); (Y.N.); (H.I.)
| | - Fumihiko Matsumoto
- Department of Head and Neck Surgical Oncology, National Cancer Center Hospital, Tokyo 104-0045, Japan; (K.K.); (G.O.); (F.M.); (S.Y.)
| | - Seiichi Yoshimoto
- Department of Head and Neck Surgical Oncology, National Cancer Center Hospital, Tokyo 104-0045, Japan; (K.K.); (G.O.); (F.M.); (S.Y.)
| | - Hiroshi Igaki
- Department of Radiation Oncology, National Cancer Center Hospital, Tokyo 104-0045, Japan; (N.M.); (K.O.); (K.I.); (K.T.); (T.K.); (Y.S.); (A.T.); (Y.N.); (H.I.)
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