• Hua-Chun Luo, Zhi-Chao Fu, Xin-Peng Wang, Lv-Juan Cai, Feng-Mei Wang, Qin Yin, Guishan Lin, Zhong-Hua Chen, and Shao-Guang Liao.
• Department of Radiation Oncology.
• Medicine (Baltimore). 2020 Dec 18; 99 (51): e23715e23715.

AbstractOn the basis of endocrine therapy for patients with low burden metastatic prostate cancer (LBMP), the clinical efficacy and quality of life were compared between prostate-only directed radiotherapy (PODT) and prostate and metastasis radiotherapy (PMRT).From November 2009 to November 2015, total 91 patients newly diagnosed with LBMP were retrospectively analyzed, of which 52 patients received PODT and 39 patients received PMRT. The biochemical failure free interval (IBF), prostate specific survival (PCSS), and overall survival (OS) time were compared between the 2 groups, and expanded prostate cancer index composite (EPIC) scale was used to evaluate the difference in quality of life between the 2 groups.The median IBF of the PODT group was 31 months, which was significantly lower than the 39 months of the PMRT group (P < .05); the 5-year OS and PCSS were 58.9%, 65.3% in PODT group, and 58.9%, 71.79% in PMRT group, respectively. There was no significant between the 2 groups (P > .05); the side effects of acute radiotherapy in PMRT group were significantly higher than PODT group (P < .05), especially in bone marrow suppression and gastrointestinal reactions; The scores of urinary system function and intestinal system function in PMRT group were significantly higher than PODT group at the end of radiotherapy, 3 months after radiotherapy, and 6 months after radiotherapy (P < .05). The score of sexual function in PMRT group was significantly lower than that in PODT group after radiotherapy (P < .05), and higher than that in PORT group at other follow-up time points (P < .05). The hormone function was decreased at each follow-up time point in 2 groups, and there was no significant difference between the 2 groups (P > .05).Patients with LBMP receiving PMRT can improve IBF, but cannot increase PCSS and OS, and increase the incidence of acute radiation injury.Copyright © 2020 the Author(s). Published by Wolters Kluwer Health, Inc.

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