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. 2023 May-Jun;49(3):334-340.
doi: 10.1590/S1677-5538.IBJU.2023.0054.

Complication rates of transrectal and transperineal prostate fusion biopsies - is there a learning curve even in high volume interventional center?

Guilherme Moratti Gilberto  1 , Marcelo Froeder Arcuri  1 , Priscila M Falsarella  1 , Guilherme Cayres Mariotti  1 , Pedro Lemos Alves Lemos Neto  1 , Rodrigo Gobbo Garcia  1
Affiliations

Complication rates of transrectal and transperineal prostate fusion biopsies - is there a learning curve even in high volume interventional center?

Guilherme Moratti Gilberto et al. Int Braz J Urol. 2023 May-Jun.

Abstract

Purpose: To analyze the learning curve regarding complication rates of transrectal prostate biopsy (TRPB) versus transperineal prostate biopsy (TPPB), using real time software-based magnetic resonance imaging ultrasound (MRI-US) fusion techniques, along with first year experience of transperineal approach.

Materials and methods: retrospective unicentric cohort study at a quaternary care hospital. Medical records of all consecutive patients that underwent TPPB between March 2021 and February 2022, after the introduction of MRI-US fusion device, and those who underwent TRPB throughout the entire years of 2019 and 2020 were analyzed. All complications that occurred as consequences of the procedure were considered. Descriptive statistics, Chi-squared and Fisher tests were used to describe complications and compare the two groups.

Results: A total of 283 patients were included in the transperineal group and 513 in the transrectal group. The analysis of a learning curve for the transperineal method showed lower complications rates comparing the first six months of TPPB procedures (group 1); The complication rate for TPPB was lower than that of TRPB (55.1% versus 81.9%, respectively; p<0.01). TPPB showed specifically lower rates of hematuria (48.8% versus 66.3%;p<0.001) and rectal bleeding(3.5% versus 18.1%; p<0.001). There were no cases of prostatitis after transperineal biopsies and three cases (0.6%) after transrectal procedures.

Conclusions: We evidenced the learning curve for performing the transperineal biopsy, with a lower rate of complications for the experienced team, after 142 cases after 6 months of practice. The lower complication rate of TPPB and the absence of infectious prostatitis imply a safer procedure when compared to TRPB.

Keywords: Prostatic Neoplasms; Radiology, Interventional; complications [Subheading].

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Conflict of interest statement

None declared.

Figures

Figure 1
Figure 1. Schematic transperineal prostate biopsy: patient in lithotomy position and transrectal ultrasound is performed.
See this image and copyright information in PMC

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