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ENGLISH ABSTRACT
JOURNAL ARTICLE
[Complications of transperineal template-guided prostate mapping biopsy].
Zhonghua Yi Xue za Zhi [Chinese medical journal] 2019 Februrary 13
Objective: To assess the complications of transperineal template-guided prostate mapping biopsy (TTMB). Methods: Between May 2017 and March 2018, 142 consecutive patients with prior negative transrectal biopsy results and persistently elevated prostate-specific antigen (PSA) were divided into the observation group and the control group randomly. The observation group underwent TTMB and the control group underwent transperineal template-guided prostate saturation biopsy (TTSB). Bleeding, infection, urinary function were recorded after prostate biopsy. Erectile function (ED) was measured at baseline, 1 month, 3 months and 6 months after prostate biopsy using the International Index of Erectile Function (IIEF-5). Results: A mean of 59 cores (from 33 to 116 cores) were obtained in TTMB, and a mean of 23 cores (from 11 to 44 cores) were obtained in TTSB. The positive rate was 50.0% (30/60) in TTMB, and 32.9% (27/82) in TTSB, and there were significant differences between two groups ( P< 0.05). The incidence of severe hematuria and urinary retention was 8.3% (5/60) and 11.7% (7/60) respectively in TTMB, while 1.2% (1/60) and 11.7% (7/60) respectively in TTSB. There were significant differences between two groups ( P< 0.05). But there were no significant differences between two groups in the incidence of mild, moderate and total hematuria, hematospermia, perineal hematoma, infection ( P> 0.05). Rectal bleeding was not observed. In TTMB group, the IIEF-5 scores at baseline, 1 month, 3 months and 6 months were (19.1±4.5), (17.4±4.8), (18.6±4.5), (19.0±4.0), respectively. In TTSB group, the IIEF-5 scores at baseline, 1 month, 3 months and 6 months were (19.7±4.3), (18.2±4.5), (19.1±4.1), (19.6±4.2), respectively. There were significant differences between baseline and 1 month after prostate biopsy in two groups ( P< 0.05), but there were no significant differences of IIEF-5 score between the two groups ( P> 0.05). Conclusions: TTMB can improve the positive rate for patients with prior negative transrectal biopsy results and persistently elevated PSA. TTMB has low complication rates, and most side-effects are self-limited. Compared with TTSB, the incidence of urinary retention and severe hematuria increases, but they can be recovered after clinical intervention. ED is transient, and affected for 1 month after the biopsy, but it will be recovered to the baseline after 3 to 6 months. Therefore, TTMB is a safe and reliable procedure.
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