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AWT IMAGE

AWT IMAGE

:: Volume 16, Issue 2 (4-2018) ::
Int J Radiat Res 2018, 16(2): 243-250 Back to browse issues page
The possibility of hormone-mediated PSA derangement in prostate cancer treatment
C.G. Lee , J. Lee , S. Kim , S.H. You
Department of Radiation Oncology, Yonsei University, Wonju College of Medicine, 20 Ilsan-ro, Wonju, Republic of Korea , ys3259@yonsei.ac.kr
Abstract:   (3696 Views)
Background: This study was designed to suggest the possibility of hormone-related derangement in salvage radiotherapy (SRT) after radical prostatectomy in terms of prostate-specific antigen (PSA) control. Materials and Methods: Among 160 consecutive prostate cancer patients who received radical prostatectomy, 34 with SRT between 2004 and 2012 were retrospectively reviewed. The numbers of patients with pathologic T3-T4 stage, Gleason score 8-10, and positive resection margin were 11 (32.4%), 10 (29.4%), and 17 (50.0%), respectively. Median SRT dose was 64.8 Gy (range, 52.9-70.0 Gy) with 1.8-2.3 Gy fractionations. Biochemical failure-free survival after SRT was counted and the median follow-up period was 32.5 months (range, 10-118 months). Results: After SRT, the median time for PSA to decrease to less than 0.2 ng/mL was four months (range, 0-25 months). The three-year survival rate was 60.3%. On univariate analysis, preferential hormone therapy (PHT) (p=0.022), higher PSA at SRT (p=0.005), and higher PSA after surgery (p=0.003) were related to a shorter biochemical survival period. On multivariate analysis, lower PSA at SRT (p=0.016), higher radiation dose (p=0.007), and non-PHT (p=0.046) suggested a consistent PSA control. Conclusion: According to these results, low PSA values by hormonal intervention need to be reconsidered with a different way to look at the relationship between the PSA and hormone therapy. SRT should be considered for postoperative salvage treatment regardless of the hormone-related PSA values.
 
Keywords: Hormone therapy, Prostate cancer, Salvage radiotherapy.
Full-Text [PDF 533 kb]   (923 Downloads)    
Type of Study: Original Research | Subject: Radiation Biology
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Lee C, Lee J, Kim S, You S. The possibility of hormone-mediated PSA derangement in prostate cancer treatment . Int J Radiat Res 2018; 16 (2) :243-250
URL: http://ijrr.com/article-1-2242-en.html


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Volume 16, Issue 2 (4-2018) Back to browse issues page
International Journal of Radiation Research
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