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Front Oncol ; 9: 758, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31448239

RESUMO

The present study aimed to investigate the diagnostic efficacy and the regional location of prostate cancer (PCa) as well as the accuracy of assessment between trans-perineal template-guided mapping biopsy (TTMB) and freehand trans-perineal biopsy (FTPB) for men with PSA < 20 ng/ml. Thus, we evaluated 623 consecutive patients with PSA < 20 ng/ml who had prostate biopsies in our institute between July 2017 and September 2018. Patients were divided into two groups based on different biopsy methods: 217 (34.83%) patients with TTMB and 406 (65.17%) with FTPB. Thirty six patients with TTMB and 80 with FTPB had continued undergone radical prostatectomy after a cancer diagnosis. Then the Gleason score of the biopsy and the post-radical prostatectomy specimens in each patient were compared. Overall, the PCa detection rate was 34.35%. There was no significant difference in PCa detection rate between TTMB and FTPB (35.48 vs. 33.74%, respectively; p = 0.663). Besides, the detection rate of significant PCa (Gleason score ≥ 7) in TTMB was 29.03% while FTPB was 23.89% (p = 0.162). The detection rate at the apex of the prostate was higher than the detection rate at the base of the prostate (9.80 vs. 5.79%; p < 0.01) when performing the TTMB. The FTPB would miss 10% of the positive diagnosis and almost half of the lesions. The upgraded of Gleason score from biopsy to post-radical prostatectomy was 16.67% with the TTMB and 36.25% with the FTPB (p = 0.034). The TTMB had a similar cancer detection rate, but a higher lesion detection rate and more accuracy in assess the actual Gleason score when comparing to FTPB for men with PSA < 20 ng/ml. By performing a 20-core TTMB, the cancer detection rate at the apex of the prostate was higher than the base.

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