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Intensity-modulated radiation therapy for elderly patients (aged ≥75 years) with localized prostate cancer: Comparison with younger patients (aged <75 years) Intensity-modulated radiation therapy for elderly patients (aged ≥75 years) with localized prostate cancer: Comparison with younger patients (aged <75 years)

  • Authors:
    • Hidekazu Tanaka
    • Yuka Nakashima
    • Masaya Ito
    • Takahiro Yamaguchi
    • Kae Esaki
    • Shingo Kamei
    • Satoshi Ishihara
    • Masahide Hayashi
    • Shinichi Ogawa
    • Satoshi Goshima
    • Masayuki Matsuo
  • View Affiliations / Copyright

    Affiliations: Department of Radiology, Gifu University Hospital, Gifu 501-1194, Japan, Department of Urology, Kizawa Memorial Hospital, Minokamo, Gifu 505-8503, Japan, Department of Radiology, Kizawa Memorial Hospital, Minokamo, Gifu 505-8503, Japan
  • Pages: 476-480
    |
    Published online on: February 18, 2019
       https://doi.org/10.3892/mco.2019.1810
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Abstract

The aim of the present study was to evaluate the efficacy and safety of intensity‑modulated radiation therapy (IMRT) for elderly patients with prostate cancer (age ≥75 years) compared with younger patients (<75 years). The numbers of patients enrolled into the elderly and younger groups were 238 and 853, respectively. More than half of the patients in the elderly group were high‑risk, and the total risk of the elderly group was higher than that of younger group. The median follow‑up periods for the elderly and younger groups were 42 (range, 2‑108) and 49 (range, 2‑120) months, respectively. All patients were treated with IMRT at a dose of 74‑78 Gy with or without androgen‑deprivation therapy. The biochemical failure‑free rates (BFFRs) at 3‑year follow‑up for the elderly and younger groups were 93.3 and 95.7%, respectively; there was no significant difference between the 2 groups in regard to the BFFR. The clinical failure‑free rates (CFFR) at 3‑year follow‑up for the elderly and younger groups was 95.8 and 98.5%, respectively; the 2 groups did not differ significantly in regard to the CFFR. The cumulative incidence rates of gastrointestinal toxicity (grade ≥2) and genitourinary toxicity (grade ≥2) at 3‑year follow‑up were 10.5 and 1.3%, respectively; there was no significant difference between the elderly and younger groups. It was concluded that in prostate cancer patients aged 75 years or older, IMRT has a treatment effect equivalent to that in patients <75 years old; adverse events are also comparable.
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Copy and paste a formatted citation
Spandidos Publications style
Tanaka H, Nakashima Y, Ito M, Yamaguchi T, Esaki K, Kamei S, Ishihara S, Hayashi M, Ogawa S, Goshima S, Goshima S, et al: Intensity-modulated radiation therapy for elderly patients (aged ≥75 years) with localized prostate cancer: Comparison with younger patients (aged <75 years) Intensity-modulated radiation therapy for elderly patients (aged ≥75 years) with localized prostate cancer: Comparison with younger patients (aged <75 years). Mol Clin Oncol 10: 476-480, 2019.
APA
Tanaka, H., Nakashima, Y., Ito, M., Yamaguchi, T., Esaki, K., Kamei, S. ... Matsuo, M. (2019). Intensity-modulated radiation therapy for elderly patients (aged ≥75 years) with localized prostate cancer: Comparison with younger patients (aged <75 years) Intensity-modulated radiation therapy for elderly patients (aged ≥75 years) with localized prostate cancer: Comparison with younger patients (aged <75 years). Molecular and Clinical Oncology, 10, 476-480. https://doi.org/10.3892/mco.2019.1810
MLA
Tanaka, H., Nakashima, Y., Ito, M., Yamaguchi, T., Esaki, K., Kamei, S., Ishihara, S., Hayashi, M., Ogawa, S., Goshima, S., Matsuo, M."Intensity-modulated radiation therapy for elderly patients (aged ≥75 years) with localized prostate cancer: Comparison with younger patients (aged <75 years) Intensity-modulated radiation therapy for elderly patients (aged ≥75 years) with localized prostate cancer: Comparison with younger patients (aged <75 years)". Molecular and Clinical Oncology 10.4 (2019): 476-480.
Chicago
Tanaka, H., Nakashima, Y., Ito, M., Yamaguchi, T., Esaki, K., Kamei, S., Ishihara, S., Hayashi, M., Ogawa, S., Goshima, S., Matsuo, M."Intensity-modulated radiation therapy for elderly patients (aged ≥75 years) with localized prostate cancer: Comparison with younger patients (aged <75 years) Intensity-modulated radiation therapy for elderly patients (aged ≥75 years) with localized prostate cancer: Comparison with younger patients (aged <75 years)". Molecular and Clinical Oncology 10, no. 4 (2019): 476-480. https://doi.org/10.3892/mco.2019.1810
Copy and paste a formatted citation
x
Spandidos Publications style
Tanaka H, Nakashima Y, Ito M, Yamaguchi T, Esaki K, Kamei S, Ishihara S, Hayashi M, Ogawa S, Goshima S, Goshima S, et al: Intensity-modulated radiation therapy for elderly patients (aged ≥75 years) with localized prostate cancer: Comparison with younger patients (aged <75 years) Intensity-modulated radiation therapy for elderly patients (aged ≥75 years) with localized prostate cancer: Comparison with younger patients (aged <75 years). Mol Clin Oncol 10: 476-480, 2019.
APA
Tanaka, H., Nakashima, Y., Ito, M., Yamaguchi, T., Esaki, K., Kamei, S. ... Matsuo, M. (2019). Intensity-modulated radiation therapy for elderly patients (aged ≥75 years) with localized prostate cancer: Comparison with younger patients (aged <75 years) Intensity-modulated radiation therapy for elderly patients (aged ≥75 years) with localized prostate cancer: Comparison with younger patients (aged <75 years). Molecular and Clinical Oncology, 10, 476-480. https://doi.org/10.3892/mco.2019.1810
MLA
Tanaka, H., Nakashima, Y., Ito, M., Yamaguchi, T., Esaki, K., Kamei, S., Ishihara, S., Hayashi, M., Ogawa, S., Goshima, S., Matsuo, M."Intensity-modulated radiation therapy for elderly patients (aged ≥75 years) with localized prostate cancer: Comparison with younger patients (aged <75 years) Intensity-modulated radiation therapy for elderly patients (aged ≥75 years) with localized prostate cancer: Comparison with younger patients (aged <75 years)". Molecular and Clinical Oncology 10.4 (2019): 476-480.
Chicago
Tanaka, H., Nakashima, Y., Ito, M., Yamaguchi, T., Esaki, K., Kamei, S., Ishihara, S., Hayashi, M., Ogawa, S., Goshima, S., Matsuo, M."Intensity-modulated radiation therapy for elderly patients (aged ≥75 years) with localized prostate cancer: Comparison with younger patients (aged <75 years) Intensity-modulated radiation therapy for elderly patients (aged ≥75 years) with localized prostate cancer: Comparison with younger patients (aged <75 years)". Molecular and Clinical Oncology 10, no. 4 (2019): 476-480. https://doi.org/10.3892/mco.2019.1810
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