Division of Urology. Città della Salute e della Scienza di Torino. University of Turin. Turin. Italy.
Division of Urology. Santa Croce e Carle Hospital. Cuneo. Italy.
Arch Esp Urol. 2021 May;74(4):435-440.
To describe first clinical results in term of safety, complications and short term efficacy of temporary placement of UVENTA urethral stent in the treatment of urethral and bladder neck strictures.
UVENTA urethral stent (Taewoong Medical) is a temporary self expandable covered metallic stent. Anti-migration system and different radial force distribution are the two main innovations. This is a retrospective evaluation of UVENTA stent temporary placements for urethral diseases in two urological Centers.
15 patients underwent UVENTA stent placement between 2016 and 2018. Stent placement was easy and quick in all cases. Considering indwelling period: one patient reported urethral pain related to the stent in the first month, three patients had urinary infection treated with antibiotics; temporary stress incontinence was noted in 21% of bulbar-membranous stents; stent migrations was noted in 3 out of 4 bladder neck cases whereas no bulbar-membranous stents migrated. At removal no significant incrustation, stone or tissue ingrowth were noted, as well as new proximal or distal strictures. Stent removal was uncomplicated in all cases. Median follow up is 9.5 months (6-24). Considering strictures overall success rate is 73% (11/15): 82% for bulbar urethra (9/11) and 50% for bladder neck (2/4).
UVENTA urethral stent showed a satisfying safety profile with few and low grade complications. Absence of migration and damage on healthy mucosa are main achievements. Further cases are needed to confirm these results and to really explore its efficacy.
描述 UVENTA 尿道支架在治疗尿道和膀胱颈部狭窄中的安全性、并发症和短期疗效的初步临床结果。
UVENTA 尿道支架（Taewoong Medical）是一种临时自扩张覆盖的金属支架。抗迁移系统和不同的径向力分布是两个主要的创新点。这是对两家泌尿科中心的 15 例尿道疾病患者进行 UVENTA 支架临时放置的回顾性评估。
15 例患者于 2016 年至 2018 年期间接受了 UVENTA 支架置入术。所有病例的支架置入均简便、快速。考虑留置期：1 例患者在第一个月出现与支架相关的尿道疼痛，3 例患者发生尿路感染，用抗生素治疗；21%的球膜性支架出现暂时性压力性尿失禁；4 例膀胱颈部病例中有 3 例支架迁移，而无球膜性支架迁移。取出时，未发现明显的结垢、结石或组织内生长，也未发现新的近端或远端狭窄。所有病例的支架取出均无并发症。中位随访时间为 9.5 个月（6-24）。考虑到所有狭窄，总体成功率为 73%（11/15）：球部尿道成功率为 82%（9/11），膀胱颈部成功率为 50%（2/4）。
UVENTA 尿道支架具有良好的安全性，并发症少且程度较轻。无迁移和对健康黏膜的损伤是主要成就。需要进一步的病例来证实这些结果并真正探索其疗效。
