Long-term outcome in patients with a Gleason score ≤6 prostate cancer treated by radical prostatectomy

Marc Birkhahn, David F. Penson, Jie Cai, Susan Groshen, John P. Stein, Gary Lieskovsky, Donald G. Skinner, Richard J. Cote

Research output: Contribution to journalArticle

21 Scopus citations


OBJECTIVE To determine the actual recurrence risk of patients with a Gleason score (GS) ≤6 treated with radical retropubic prostatectomy (RRP) and bilateral lymphadenectomy in a cohort with long-term follow-up. PATIENTS AND METHODS âcent The USC/Norris Comprehensive Cancer Center database included 3235 consecutive patients who underwent RRP for prostate cancer between January 1972 and December 2005. We identified 1383 patients with a GS a;circ 6 in prostatectomy specimens. Median follow-up was 8.3 years. Data on pathological and clinical characteristics and outcome were prospectively recorded. Statistical analysis was performed using the stratified log-rank test and stepwise Cox regression analysis. RESULTS A GS of 6 was present in 66%, 5 in 27%, 4 in 5% and 3 or 2 in 3% of cases. Tumour classification was pT2N0 (83%), pT3N0 (14%), pT4N0 (0.1%) and any TN1 (2%). Positive margins were seen in 18%. Estimated PSA and clinical recurrence rate were 14% and 4% after 10 years and 18% and 6% after 15 years, respectively. In multivariate analysis, N-stage (P < 0.001), T-stage (P= 0.02) and margin status (P < 0.001) were associated with PSA recurrence. N-stage (P < 0.001) and T-stage (P= 0.01) were associated with clinical recurrence. Overall, patients with a GS ≤ 6 accounted for 26% of all PSA recurrences and for 20% of all patients with clinical recurrences in the database. CONCLUSION âcent A relatively small proportion of patients with a GS a;circ 6 cancer developed PSA recurrence and/or overt metastasis. However, these patients account for a substantial minority of those who experienced recurrence and metastasis.

Original languageEnglish (US)
Pages (from-to)660-664
Number of pages5
JournalBJU International
Issue number5
StatePublished - Sep 1 2011



  • Gleason score ≤6
  • metastasis
  • prognosis
  • prostate cancer
  • risk factors

ASJC Scopus subject areas

  • Urology

Cite this

Birkhahn, M., Penson, D. F., Cai, J., Groshen, S., Stein, J. P., Lieskovsky, G., Skinner, D. G., & Cote, R. J. (2011). Long-term outcome in patients with a Gleason score ≤6 prostate cancer treated by radical prostatectomy. BJU International, 108(5), 660-664. https://doi.org/10.1111/j.1464-410X.2010.09978.x