A systematic review on the outcomes of local anaesthetic transperineal prostate biopsy.

Objective: To conduct a systematic review of the literature to assess the diagnostic ability, complication rate, patient tolerability, and cost of local anaesthetic (LA) transperineal prostate biopsy.

Methods: Two reviewers searched Medline, the Cochrane Library, and Embase for publications on LA transperineal prostate biopsy up to March 2021. Outcomes of interest included cancer detection rates, complication rates, pain assessments and cost.

Results: A total of 35 publications with 113 944 men were included in this review. The cancer detection rate for LA transperineal prostate biopsy in patients undergoing primary biopsy was 52% (95% confidence interval [CI] 0.45-0.60; I = 97) and the clinically significant cancer detection rate (Gleason≥3 + 4) was 37% (95% CI 0.24-0.52; I = 99%). The rate of infection-related complications in the included studies was 0.15% (95% CI 0.0000-0.0043; I = 86). The LA transperineal procedures had a low rate of procedural abandonment (26/6954, 0.37%), with the greatest pain scores measured during LA administration. No formal cost analyses on LA transperineal prostate biopsies were identified in the literature. The overall risk of bias in the included studies was high, with considerable study heterogeneity and publication bias.

Conclusion: Transperineal prostate biopsy performed under LA is a viable option for centres interested in avoiding the risk of infection associated with transrectal biopsy, and the logistical burden of general anaesthesia. Further investigation into LA transperineal prostate biopsy with comparative studies is warranted for its consideration as the standard in prostate biopsy technique.