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Impact of Gleason score on biochemical recurrence in patients with pT3aN0/Nx prostate cancer with positive surgical margins: a multicenter study from the Prostate Cancer Research Committee

  • Original Article – Clinical Oncology
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Abstract

Purpose

Oncologic outcomes of patients with pT3aN0/Nx prostate cancer (PCa) with positive surgical margins (PSM) after radical prostatectomy (RP) are heterogeneous. We investigated the impact of Gleason score (GS) on biochemical recurrence (BCR) in these patients.

Methods

A retrospective, multicenter study was performed on 795 patients with pT3aN0/Nx PCa with PSM after RP between January 2006 and December 2014. Clinicopathologic characteristics of patients were examined and onset of BCR was identified. Kaplan–Meier survival analysis was used to illustrate BCR-free survival (BFS) and Cox proportional hazard models were applied to identify factors predicting BCR.

Results

During the mean follow-up period of 63.9 months, BCR was identified in 274 (34.5%) patients. The 5-year BFS was 56.6% in all patients. In multivariate analysis, pathologic GS was the only significant prognostic factor for BCR in patients with pT3aN0/Nx PCa with PSM (GS 6 vs. GS 7 (3 + 4), P = 0.047; vs. GS 7 (4 + 3), P = 0.007, and vs. GS 8–10, P < 0.001). When patients were stratified according to GS, 5-year BFS was 78.6% in GS 6, 66.2% in GS 7 (3 + 4), 51.1% in GS 7 (4 + 3) and 35.5% in GS 8–10.

Conclusions

In patients with pT3aN0/Nx with PSM after RP, pathologic GS is the sole independent predictor for risk stratification of BCR. These findings might be used to determine the risk and timing of BCR and to help counsel patients regarding treatment strategy and prognosis of disease on an individual basis.

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Acknowledgements

This study was performed by the Prostate Cancer Research Committee of the Korean Urological Oncology Society.

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Correspondence to Hanjong Ahn or Seong Soo Jeon.

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The authors declare that they have no conflict of interest.

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All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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No funding was received.

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Written informed consent was exempted because of the retrospective study design.

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Song, W., Lee, D.H., Jeon, H.G. et al. Impact of Gleason score on biochemical recurrence in patients with pT3aN0/Nx prostate cancer with positive surgical margins: a multicenter study from the Prostate Cancer Research Committee. J Cancer Res Clin Oncol 143, 2393–2400 (2017). https://doi.org/10.1007/s00432-017-2502-7

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  • DOI: https://doi.org/10.1007/s00432-017-2502-7

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