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Identification of novel prognostic factors focusing on clinical outcomes in patients with non‑small cell lung cancer after stereotactic body radiotherapy

  • Authors:
    • Hikari Sato
    • Fumiki Ito
    • Kazuki Hasegawa
    • Ryo Saga
    • Yoichiro Hosokawa
    • Mitsuki Tanaka
    • Masahiko Aoki
  • View Affiliations / Copyright

    Affiliations: Department of Radiation Sciences, Graduate School of Health Sciences, Hirosaki University, Hirosaki, Aomori 036‑8564, Japan, Department of Radiological Technology, Hirosaki University School of Health Sciences, Hirosaki, Aomori 036‑8564, Japan, Department of Radiation Oncology, Graduate School of Medicine, Hirosaki University, Hirosaki, Aomori 036‑8562, Japan
    Copyright: © Sato et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Article Number: 79
    |
    Published online on: January 11, 2022
       https://doi.org/10.3892/ol.2022.13199
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Abstract

Stereotactic body radiotherapy (SBRT) has attracted extensive attention as an effective treatment for patients with early‑stage non‑small cell lung cancer. However, the factors affecting prognosis after SBRT have not been fully elucidated. The aim of the present study was to investigate the prognostic factors associated with overall survival (OS) and local control (LC) after SBRT. Between March 2003 and March 2020, 497 patients with primary or oligo‑metastatic lung cancer who underwent SBRT treatment were retrospectively reviewed. Univariate analysis was performed against various factors related to patient and tumor characteristics using Kaplan‑Meier method. Furthermore, the factors with statistically significant differences identified via univariate analysis underwent a stratified Cox proportional hazard regression analysis. The median follow‑up period for all patients was 26.17 months (range, 0.36‑194.37), and the 5‑year OS and LC rates were 66.3 and 86.0%, respectively. Multivariate analysis showed that surfactant protein‑D (SP‑D), tumor CT values (TCTV) and iodine density values (IDV) were independent prognostic factors for OS, and histology, TCTV and IDV were for LC. Although histology was not selected as a prognostic factor related to OS, it was indicated that patients with squamous cell carcinoma were associated with the SP‑D high group compared with the SP‑D normal group. In addition, TCTV was correlated to water density values, which tended to decrease with increasing IDV. From these findings, SP‑D and TCTV were identified as potential new candidate prognostic factors after SBRT, and it is possible that combining SP‑D and histology, and TCTV and IDV may improve the accuracy of prognostic prediction.
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Copy and paste a formatted citation
Spandidos Publications style
Sato H, Ito F, Hasegawa K, Saga R, Hosokawa Y, Tanaka M and Aoki M: Identification of novel prognostic factors focusing on clinical outcomes in patients with non‑small cell lung cancer after stereotactic body radiotherapy. Oncol Lett 23: 79, 2022.
APA
Sato, H., Ito, F., Hasegawa, K., Saga, R., Hosokawa, Y., Tanaka, M., & Aoki, M. (2022). Identification of novel prognostic factors focusing on clinical outcomes in patients with non‑small cell lung cancer after stereotactic body radiotherapy. Oncology Letters, 23, 79. https://doi.org/10.3892/ol.2022.13199
MLA
Sato, H., Ito, F., Hasegawa, K., Saga, R., Hosokawa, Y., Tanaka, M., Aoki, M."Identification of novel prognostic factors focusing on clinical outcomes in patients with non‑small cell lung cancer after stereotactic body radiotherapy". Oncology Letters 23.3 (2022): 79.
Chicago
Sato, H., Ito, F., Hasegawa, K., Saga, R., Hosokawa, Y., Tanaka, M., Aoki, M."Identification of novel prognostic factors focusing on clinical outcomes in patients with non‑small cell lung cancer after stereotactic body radiotherapy". Oncology Letters 23, no. 3 (2022): 79. https://doi.org/10.3892/ol.2022.13199
Copy and paste a formatted citation
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Spandidos Publications style
Sato H, Ito F, Hasegawa K, Saga R, Hosokawa Y, Tanaka M and Aoki M: Identification of novel prognostic factors focusing on clinical outcomes in patients with non‑small cell lung cancer after stereotactic body radiotherapy. Oncol Lett 23: 79, 2022.
APA
Sato, H., Ito, F., Hasegawa, K., Saga, R., Hosokawa, Y., Tanaka, M., & Aoki, M. (2022). Identification of novel prognostic factors focusing on clinical outcomes in patients with non‑small cell lung cancer after stereotactic body radiotherapy. Oncology Letters, 23, 79. https://doi.org/10.3892/ol.2022.13199
MLA
Sato, H., Ito, F., Hasegawa, K., Saga, R., Hosokawa, Y., Tanaka, M., Aoki, M."Identification of novel prognostic factors focusing on clinical outcomes in patients with non‑small cell lung cancer after stereotactic body radiotherapy". Oncology Letters 23.3 (2022): 79.
Chicago
Sato, H., Ito, F., Hasegawa, K., Saga, R., Hosokawa, Y., Tanaka, M., Aoki, M."Identification of novel prognostic factors focusing on clinical outcomes in patients with non‑small cell lung cancer after stereotactic body radiotherapy". Oncology Letters 23, no. 3 (2022): 79. https://doi.org/10.3892/ol.2022.13199
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