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  • Title: Prediction of extraprostatic extension by prostate specific antigen velocity, endorectal MRI, and biopsy Gleason score in clinically localized prostate cancer.
    Author: Nishimoto K, Nakashima J, Hashiguchi A, Kikuchi E, Miyajima A, Nakagawa K, Ohigashi T, Oya M, Murai M.
    Journal: Int J Urol; 2008 Jun; 15(6):520-3. PubMed ID: 18422574.
    Abstract:
    OBJECTIVES: To investigate the clinical value of prostate specific antigen velocity (PSAV) in predicting the extraprostatic extension of clinically localized prostate cancer. METHODS: One hundred and three patients who underwent radical prostatectomy for clinically localized prostate cancer were included in the analysis. The correlation between preoperative parameters, including PSA-based parameters, clinical stage, and histological biopsy findings, and the pathological findings were analyzed. Logistic regression analysis was performed to identify a significant set of independent predictors for the local extent of the disease. RESULTS: Sixty-four (60.2%) patients had organ confined prostate cancer and 39 (39.8%) patients had extraprostatic cancer. The biopsy Gleason score, PSA, PSA density, PSA density of the transition zone, and PSAV were significantly higher in the patients with extraprostatic cancer than in those with organ confined cancer. Multivariate logistic regression analysis indicated that the biopsy Gleason score, endorectal magnetic resonance imaging findings, and PSAV were significant predictors of extraprostatic cancer (P < 0.01). Probability curves for extraprostatic cancer were generated using these three preoperative parameters. CONCLUSIONS: The combination of PSAV, endorectal magnetic resonance imaging findings, and biopsy Gleason score can provide additional information for selecting appropriate candidates for radical prostatectomy.
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