Abstract
Purpose
To investigate whether histological inflammation detected in an initial prostate biopsy can predict the risk of prostate cancer on a repeat biopsy.
Methods
This was a retrospective study of 171 patients who underwent repeat prostate biopsy for persistently elevated prostate-specific antigen after an initial negative biopsy result. The enrolled patients were divided into two groups according to the results of the repeat biopsy: the noncancer group (n = 126) and the cancer group (n = 45). Multivariate regression analysis was used to determine the effect of inflammation grade, aggressiveness, and prostate-related parameters on the detection of prostate cancer at the repeat biopsy.
Results
Prostate inflammation grade (p = 0.005) and aggressiveness (p = 0.001) in the initial biopsy were significantly different between the cancer and noncancer groups. Factors associated with the risk of prostate cancer at the repeat biopsy were age [odds ratio (OR) 1.08; 95 % confidence interval (CI) 1.03–1.14], prostate-specific antigen density (OR 24.30; 95 % CI 9.3–62.9), prostate-specific antigen velocity (OR 1.05; 95 % CI 1.01–1.09), and inflammation aggressiveness (OR 0.05; 95 % CI 0.01–0.27).
Conclusions
A histological inflammatory finding at the initial prostate biopsy was negatively associated with prostate cancer detection in repeat biopsy. This result could be useful to determine the need for repeat prostate biopsy in patients with persistently elevated prostate-specific antigen.
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Conflict of interest
No potential conflict of interest relevant to this article was reported.
Ethical standards
This study protocol was reviewed and approved by the institutional review board (IRB Registration No. CNUHH-2015-030).
Informed consent
Informed consent was waived by the board.
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Bu Hyeon Yun and Eu Chang Hwang have contributed equally to this work.
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Yun, B.H., Hwang, E.C., Yu, H.S. et al. Is histological prostate inflammation in an initial prostate biopsy a predictor of prostate cancer on repeat biopsy?. Int Urol Nephrol 47, 1251–1257 (2015). https://doi.org/10.1007/s11255-015-1029-6
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DOI: https://doi.org/10.1007/s11255-015-1029-6