title: Follow-up of men obtaining a six-core versus a ten-core benign prostate biopsy 7 years previously.
abstract: The aim of this study is to evaluate the proportion of repeat biopsies after 7 years in men with an initial benign six- or ten-core biopsy as well as the incidence of prostate cancer (PC) in the repeat biopsies. In this retrospective longitudinal study, 116 men with an elevated prostate-specific antigen (PSA) and/or a suspicious digital rectal examination (DRE) who have had a benign prostate biopsy between January 1997 and September 1997 were included. Fifty-eight men had an initial benign six-core biopsy (median PSA 7.5 ng/ml, range 0.3-67) (group A), and 58 men had an initial benign ten-core biopsy (median PSA 7.5 ng/ml, range 0.8-91.4) (group B). We analysed men with a pathological PSA velocity, a persistently elevated PSA, an abnormal DRE, a high-grade prostatic intraepithelial neoplasia or atypical adenomatous hyperplasia, or atypical small acinar proliferation as indication for rebiopsy. Furthermore, we analysed a subgroup with exclusively an increased PSA velocity (>0.75 ng/ml per year) as indication for rebiopsy. In group A, 14 men had a follow-up biopsy. In this group, follow-up biopsies yielded PC in eight men (13.8%), six (10.3%) had a negative follow-up biopsy. In contrast, in group B only four men (3.4%) had a follow-up biopsy (P=0.005). Two of them (3.4%) had PC (P=0.02), two cases (3.4%) showed a benign histology (P=0.06). The use of an extended biopsy protocol at the initial evaluation reduces the number of repeat biopsies required and decreases the number of PC detection in the follow-up biopsy cohort.
authors.affiliation: Department of Urology and Andrology, Ludwig Boltzmann Institute for Urological Oncology, Danube Hospital, Langobardenstrasse 122, 1220, Vienna, Austria. broessner@utanet.at
authors.forename: Clemens
authors.initials: C
authors.lastname: Brossner
authors.forename: Stefan
authors.initials: S
authors.lastname: Madersbacher
authors.forename: Phillip
authors.initials: P
authors.lastname: de Mare
authors.forename: Anton
authors.initials: A
authors.lastname: Ponholzer
authors.forename: Bader
authors.initials: B
authors.lastname: Al-Ali
authors.forename: Michael
authors.initials: M
authors.lastname: Rauchenwald
mesh_terms: D000328:Adult; D000368:Aged; D001706:Biopsy / Q000379:methods* / Q000706:statistics & numerical data*; D005500:Follow-Up Studies; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D011467:Prostate / Q000473:pathology*; D012189:Retrospective Studies; D013997:Time Factors