Does Prostate-Specific Antigen Density Alter Decision Making on Biopsy?

Autor: T.M. De Reijke, G. van Andel, R. Vleeming, Karl-Heinz Kurth, A. J. M. De Craen
Přispěvatelé: Other departments
Rok vydání: 1996
Předmět:
Zdroj: European urology, 29(1), 10-14. Elsevier
ISSN: 1873-7560
0302-2838
DOI: 10.1159/000473710
Popis: Objective : The ability of prostate-specific antigen density (PSAD) to predict prostate cancer in biopsy specimens is evaluated in patients with benign digital rectal examination (DRE) and prostate-specific antigen (PSA) between 4.0 and 10.0 ng/ml. Material and Methods : 144 referred patients with a benign DRE and PSA > 4.0 ng/ml were additionally evaluated by transrectal ultrasonography and transrectal biopsies. PSAD values were calculated and statistical analysis was performed. Results : The mean PSAD value was able to distinguish significantly between benign prostate conditions and prostate cancer in patients with PSA > 4.0 ng/ml. However, in 73 patients with 4.0 < PSA ≤ 10.0 ng/ml no significant stratification was obtained. At a PSAD value of 0.15 the pretest probability of 18% for positive biopsy was lowered to a posttest probability of 8.1% and PSAD appeared to be of limited value regarding sensitivity and specificity at different cutoff values (ROC curve). Applying age-specific reference ranges would have reduced diagnostic procedures for men between 60 and 79 years old with 7.0% without missing prostate cancer. Conclusions: In this study PSAD was shown to have only a moderate additive value in decision making to omit biopsy for the individual patient with benign DRE and PSA between 4.0 and 10.0 ng/ml. Age-specific reference ranges of PSA can prevent unnecessary diagnostic procedures.
Databáze: OpenAIRE