Retrospective study comparing six - and twelve-core prostate biopsy in detection of prostate cancer
Int. braz. j. urol
;
34(1): 9-14, Jan.-Feb. 2008. tab
Article
in English
| LILACS
| ID: lil-482937
ABSTRACT
OBJECTIVE:
We compared the safety and efficacy of the 12-core biopsy with those of the conventional systematic 6-core biopsy with PSA levels between 4.1 and 20.0 ng/mL. MATERIALS ANDMETHODS:
This study included 428 patients who underwent a 6-core biopsy and 128 patients who underwent a 12-core biopsy. Biopsies were performed transrectally under ultrasound guidance. The 12-core biopsy scheme involved obtaining 6 far lateral cores.RESULTS:
For patients with PSA level between 4.1 and 10.1 ng/mL, 47 of the 265 patients who underwent 6-core biopsy and 32 of the 91 patients who underwent a12-core biopsy were diagnosed with prostate cancer (p = 0.0006). Among the patients with a PSA level between 10.1 and 20.0 ng/mL, 48 of 163 patients who underwent the 6-core biopsy and 16 of 37 patients who underwent the 12-core biopsy were diagnosed with prostate cancer (p = 0.0606). Three of the 95 patients who were diagnosed with prostate cancer through the 6-core biopsy and 12 of the 48 patients who were diagnosed through the 12-core biopsy had cancer located in the anterior apex. The 12-core biopsy increased the diagnostic rate in the apex (p = 0.001). No statistically significant differences were found in incidence of complications.CONCLUSION:
We concluded that the 12-core biopsy is a safe and more effective procedure for increasing the diagnostic rate of prostate cancer than the 6-core biopsy in patients with PSA level between 4.1 and 10.0 ng/mL, and the most useful anatomical area to be added was found to be cores from the anterior apex.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Prostate
/
Prostatic Neoplasms
/
Biopsy, Needle
Type of study:
Diagnostic study
/
Practice guideline
/
Observational study
/
Risk factors
Limits:
Aged
/
Humans
/
Male
Language:
English
Journal:
Int. braz. j. urol
Journal subject:
Urology
Year:
2008
Type:
Article
Affiliation country:
Japan
Institution/Affiliation country:
Aichi Medical University/JP
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