Novel Technique in Performing Standard Transperineal Template Prostate Biopsies Under Local Anaesthetic.

Purpose Transperineal template prostate biopsies (TPTPB) are now increasingly commonly performed for the diagnosis of prostate cancer. TPTPB are traditionally performed under general anaesthetic. However, this poses a significant strain on hospital theatre capacity. As such, local anaesthetic (LA) TPTPB are becoming more popular. We describe a novel technique in performing the standard TPTPB under LA in the outpatient setting. Materials and methods Between February 2019- February 2021, 254 consecutive men (median age 69; range: 44-80 years) with a median PSA of 8.7 ng/ml (range: 2.2-76) underwent L/A TPTPB using our novel technique. This is whereby 50mls of 1% prilocaine was injected partially around the perineal skin and partially deep bilateral periprostatic areas. Multiple simultaneous prostate biopsies were then taken with the standard template grid and stepper. Results A total of 250/254 (98.4%) men underwent successful L/A TPTPB with a median visual analogue pain score of 4 (range: 2-8). The median prostate volume was 49cc (range: 14-240cc). The median number of cores taken were 18 (range: 14-24). A total of 163/250 men (65.2%) had a positive histology for prostate cancer with a median of 5 cores being involved with prostate cancer (range: 1-18). In addition, 101/163 men (62.0%) diagnosed with prostate cancer had either Gleason score 3+4=7 or greater. None experienced urosepsis and only 2/250 men (0.8%) had temporary urinary retention. Conclusion Our novel LA technique in performing the standard TPTPB is safe, feasible and well tolerated and associated with a high rate of prostate cancer detection.