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J Urol. 2000 Aug;164(2):393-6.

Extensive biopsy protocol improves the detection rate of prostate cancer.

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1
Departments of Urology and Pathology, Bichat-Claude Bernard Hospital, Paris, France.

Abstract

PURPOSE:

We evaluated improvement in the rate of prostate cancer detection when using an extensive biopsy protocol involving peripheral cores.

MATERIALS AND METHODS:

We prospectively evaluated 303 consecutive men who underwent transrectal ultrasound guided biopsy due to elevated prostate specific antigen (PSA) and/or abnormal digital rectal examination. Ten biopsies were performed, including at least 5 at the base and middle of each lobe. In addition to standard biopsy at a 45-degree angle, a more peripheral 30-degree angle biopsy was obtained. At the apex only 1 standard biopsy was done. However, when prostate volume was greater than 50 cm.3, an additional peripheral biopsy was obtained at the apex.

RESULTS:

The complication rate in this biopsy protocol was 1% (3 patients). Prostate cancer was detected in 118 of the 303 men (38. 9%). Overall this extensive protocol resulted in 6.6% improvement in the detection rate. Improvement was 6.5% in men with PSA 10 ng./ml. or less and 7% in those with PSA greater than 10 (not significant).

CONCLUSIONS:

Increasing the number of biopsy cores and improving prostate peripheral zone sampling resulted in a significant improvement in the detection of prostate cancer.

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PMID:
10893593
[Indexed for MEDLINE]

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