URUrology Research3083-49102981-8230Bio-Byword Scientific Publishing Pty. Ltd.10.26689/ur.v4i2.15360ArticleUltra-minimally Invasive Prostatic Urethral Dilation for Small-volume Benign Prostatic Obstruction: A Case Reporthttps://artdesignp.com/journal/UR/4/2/10.26689/ur.v4i2.15360ShenKun,FuGuangbo,ZhangDawei,YuLeinan2026422026-07-07Background: Small-volume benign prostatic obstruction (BPO) represents a distinct clinical phenotype in which lower urinary tract symptoms (LUTS) are often driven by functional and microenvironmental factors rather than anatomical enlargement. Conventional treatment strategies may be less effective in this subgroup. Case presentation: We report the case of a 66-year-old male with severe LUTS and a small prostate volume (20 mL) who showed inadequate response to medical therapy. The patient underwent prostatic urethral dilation (PUD) using an ultra-minimally invasive prostate dilation catheter (Longevity bar). At 3-month follow-up, improvements were observed in symptom score, urinary flow rate, and post-void residual volume, while sexual function was preserved, and no procedure-related complications occurred. Conclusion: PUD may provide a potential treatment option for selected patients with small-volume BPO. Further studies are needed to determine its long-term efficacy and clinical role.

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