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Comparative Study
. 2005 Sep;66(3):547-51.
doi: 10.1016/j.urology.2005.03.093.

Biopsy of men with PSA level of 2.6 to 4.0 ng/mL associated with favorable pathologic features and PSA progression rate: a preliminary analysis

Hui Zhu  1 , Kimberly A Roehl, Jo Ann V Antenor, William J Catalona
Affiliations
Comparative Study

Biopsy of men with PSA level of 2.6 to 4.0 ng/mL associated with favorable pathologic features and PSA progression rate: a preliminary analysis

Hui Zhu et al. Urology. 2005 Sep.

Abstract

Objectives: To compare the pathologic outcomes and prostate-specific antigen (PSA) progression rates of patients who underwent radical prostatectomy because of prostate cancers and whose cancer was detected at a PSA level of 2.6 to 4.0 ng/mL versus those with cancer detected after the PSA level rose to greater than 4.0 ng/mL. Some studies have suggested that clinically significant prostate cancer is detected more frequently in an organ-confined stage with a PSA level between 2.6 and 4.0 ng/mL than with a PSA level greater than 4 ng/mL. However, it is uncertain whether this will affect clinical outcomes.

Methods: From 1991 to 2001, 20,788 men enrolled in a prostate cancer screening study had an initial PSA level of less than 2.6 ng/mL. Of these patients, 523 had a PSA level that rose to greater than 2.5 ng/mL and had prostate cancer detected. Of the 297 patients who subsequently underwent radical prostatectomy, 223 had a preoperative PSA level of 2.6 to 4.0 ng/mL and 74 had a preoperative PSA level greater than 4.0 ng/mL. The median follow-up was 4 years. The pathologic stage, mean tumor volume, Gleason score, possibly insignificant cancer rate, possibly rapidly progressive cancer rate, and PSA progression rate were compared between the two groups.

Results: The patients with a preoperative PSA level between 2.6 and 4.0 ng/mL had more favorable pathologic outcomes in terms of cancer volume, pathologic stage, and possibly rapidly progressive cancer rate. The possibly insignificant cancer rates were not different between the groups. A trend was noted for patients with a preoperative PSA level between 2.6 and 4.0 ng/mL to have a lower PSA progression rate.

Conclusions: Biopsy in men with PSA levels between 2.6 and 4.0 ng/mL may detect clinically significant prostate cancer more frequently at an organ-confined stage, with a lower PSA progression rate. Additional study in a larger population with longer follow-up is needed to confirm this trend.

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