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ORIGINAL ARTICLE
Year : 2017  |  Volume : 33  |  Issue : 1  |  Page : 64-69

Biochemical failure after radical prostatectomy in intermediate-risk group men increases with the number of risk factors


1 Department of Urology, National Kyushu Cancer Center, Fukuoka, Japan
2 Department of Pathology, National Kyushu Cancer Center, Fukuoka, Japan
3 Institute for Clinical Research, National Kyushu Cancer Center, Fukuoka, Japan

Correspondence Address:
Nobuki Furubayashi
Department of Urology, National Kyushu Cancer Center, Fukuoka
Japan
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0970-1591.194786

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Introduction: We aimed to determine whether the number and type of risk factors are associated with biochemical recurrence-free survival after radical prostatectomy in men with D'Amico intermediate-risk prostate cancer. Materials and Methods: Between August 1998 and May 2013, 481 Japanese patients underwent antegrade radical prostatectomy. The relationships between the rate of PSA failure after radical prostatectomy and the number and type of risk factors were examined in the intermediate-risk group. Results: According to the D'Amico criteria, the low-, intermediate-, and high-risk groups comprised 107, 222, and 152 patients, respectively. The median follow-up period after surgery was 54.1 months. The 5-year PSA failure-free rates in the low-, intermediate-, and high-risk groups were 96.5%, 88.9%, and 72.6%, respectively (P < 0.001). The 5-year PSA failure-free rate in the intermediate-risk group with one, two, and three intermediate risk factors was 94.9%, 88.4%, and 49.0%, respectively (P < 0.001). The difference between the high- and intermediate-risk group with three intermediate risk factors was statistically significant based on the log-rank test (P = 0.039). Conclusion: The number of intermediate risk factors is significantly associated with the PSA failure-free survival rate after radical prostatectomy in the intermediate-risk group. Patients classified into the intermediate-risk group based on all three intermediate risk factors are less likely to achieve a complete cure through surgery alone.


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