Role of Hiraoka's transurethral detachment of the prostate combined with biopsy of the peripheral zone during the same session in patients with repeated negative biopsies in the diagnosis of prostate cancer.

Background: Persistent suspicion of prostate cancer (PCa) due to a rising prostate-specific antigen (PSA) level after repeated negative biopsies is a serious challenge in clinical practice.

Aim: To determine the role of Hiraoka's transurethral detachment of the prostate (TUDP) combined with biopsy of the peripheral zone during the same session in patients with repeated negative biopsies in the diagnosis of PCa.

Methods: We retrospectively evaluated the records of 10 patients who were eligible for inclusion in our hospital between December 2012 and August 2017. Patient demographics, a family history of PCa, the number of biopsies, prostate volume, pathological examination, and perioperative PSA level were obtained.

Results: Two of 10 patients were pathologically diagnosed with PCa after surgery; the Gleason scores were 4 + 4 and 4 + 3, respectively. Both patients subsequently underwent laparoscopic radical prostatectomy. The median PSA levels preoperatively, and 3 mo and 1 year postoperatively in the other eight patients who were diagnosed with benign prostate hyperplasia after surgery were 19.10 ng/mL, 1.10 ng/mL, and 1.15 ng/mL, respectively. The adjusted values of the 3-mo and 1-year post-operative PSA level pre-operative PSA level were 0.003 and 0.026, respectively. None of the patients had increased PSA levels or PCa detected after a median 35 mo of follow-up.

Conclusion: TUDP combined with peripheral zone biopsy may improve the detection rate of PCa in patients with repeated negative biopsies. The PSA level declined rapidly in patients who had negative pathological examinations after TUDP, which remained stable 1 year after surgery.