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Philippine Journal of Urology ; : 11-20, 2017.
Article in English | WPRIM | ID: wpr-960030

ABSTRACT

@#<p style="text-align: justify;"><strong>OBJECTIVE:</strong> To compare the diagnostic efficacy between the transperineal and the transrectal prostate needly biopsy as the initial biopsy strategy for detection of prostate cancer.<br /><strong>METHODS:</strong> A total of 179 patients with PSA of 2.5-20 ng/mL who underwent initial prostate needle biopsy were included. One hundred eight (108) patients underwent transrectal prostate needle biopsy (TRUS-BX) from March to December 2014, while 71 patients underwent transperineal prostate needle biopsy (TP-BX) from January 2015- August 2016. Descriptive statistics including mean, median and percentage were used for the patient demographics. Student's t-test was used to compare continuous variables between the two groups. X2 or Fisher's exact probability tests were used for categorical variables.<br /><strong>RESULTS:</strong> The mean age of the patients who underwent the TP-BX and TRUS-BX were 66.10 years and 62 years respectively (p=0.0003). The mean prostate volumes were 44.10 mL and 42.39 mL (p=0.5405), while the mean PSA were 9.51 ng/mL and 9.21 ng/mL (p=0.6096) for the TP-BX and TRUS-BX,respectively. The TP-BX provided a greater overall cancer detection rate of 63.38% (45/71) compared to 35.19% (38/108) obtained from the TRUS-BX (p<0.0001). Detection of clinically significant cancer, defined as Gleason score of 7 or higher was likewise greater in the TP-BX compared to the TRUS-BX (77.78% vs 55.26%; p=0.029). Among patients with PSA values of 2.5 ng/mL-10 ng/mL, cancer was detection was significantly higher in the TP-BX group (59.09% vs 31.11% p value=0.002). Cancer detection rates in patients with PSA 10ng/mL-20ng/mL were comparable in between the two groups (70.37% vs 55.56% p value =0.309). Of the patients who had cancer in the TP-BX group, 77.77%(35/45) involved in the anterior sector, 60% (27/45) the middle sector and 48.89% (22/45) the posterior sector. Thirteen out of the 35 cancers (37.14%) detected in the TP-BX group involved exclusively the anterior sector. The most common complication was hematuria at 35.21% for TP-BX and 50% for TRUS-BX. Complications that occurred exclusively for TRUS-BX included fever (2.78%) and 1 case (0.93%) of septicemia requiring hospitalization and parenteral antibiotics. Minor perienal bruising occurred exclusively in 8.45% of the patients who underwent TP-BX.<br /><strong>CONCLUSION:</strong> The transperineal prostate needle biopsy should be considered as the initial biopsy strategy for the detection of prostate cancer. The manifested advantages are the following: a) The overall cancer detection rate is significantly higher, b) The detection rate of clinically significant cancer is significantly greater, c) It provides a far more superior detection of exclusive anterior zone cancers which are often under detected or undetected with the current standard TRUS-BX and d) Complications are comparable, if not fewer than the current standard TRUS-BX.</p>


Subject(s)
Humans , Male , Aged , Anti-Bacterial Agents , Biopsy , Biopsy, Needle , Demography , Hematuria , Hospitalization , Neoplasm Grading , Probability , Prostatic Neoplasms , Sepsis
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