限局性・局所進行前立腺癌に対する放射線外部照射併用高線量率組織内照射

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Purpose : To evaluate the therapeutic outcomes and late toxicities in patients treated by high-dose-rate brachytherapy (HDR-BT) with external beam radiotherapy (EBRT) for localized or locally advanced prostate cancer. Materials and Methods : From May 2004 to September 2008, 86 men were treated by HDR-BT with EBRT for localized or locally advanced prostate cancer at the National Hospital Organization Kyushu Medical center. The median EBRT and HDR-BT doses were 40Gy and 30Gy, respectively. Result : With a median follow-up of 24 months, the 3-year overall, disease specific, and biochemical relapse-free survival rates in all patients were 97.3%, 100%, and 83.6% respectively. The 3-year biochemical relapse-free survival rate of the patients categorized to low or intermediate risk group (91.8%) was significantly better than that of the patients categorized to the high risk group (74.3%) (p = 0.042). There was no significant difference of biochemical relapse-free survival regarding to the other clinical factors (age, T-stage, Gleason score, initial prostate-specific antigen level, neoadjuvant hormone therapy, and total dose of EBRT and HDR-BT). Late Grade2 and Grade3 gastrointestinal toxicities were observed in 8 patients (9.3%) and 2 patients (2.3%), respectively. Late Grade2 genitourinary toxicities were observed in 12 patients (13. 9%). There was no patient suffered from late Grade3 or greater genitourinary toxicities. Conclusion : HDR-BT with EBRT can be safe and effective for localized or locally advanced prostate cancer.
2010-04-25

限局性・局所進行前立腺癌に対する放射線外部照射併用高線量率組織内照射

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限局性・局所進行前立腺癌に対する 放射線外部照射併用高線量率組織内照射

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限局性・局所進行前立腺癌に対する放射線外部照射併用高線量率組織内照射