Department of Urology, National Institute for Cancer Research, Genoa, Italy.
Urology. 2012 May;79(5):1175-8. doi: 10.1016/j.urology.2011.11.065.
To assess safety and efficacy of the periurethral constrictor for the treatment of postprostatectomy urinary incontinence.
Periurethral constrictor is a minimally invasive, low-cost (€ 2000) device based on an adjustable occlusive mechanism. From December 2004 to March 2010 the device was implanted in 66 patients with mild to severe incontinence (3 or more pads per day) through a 3- to 5-cm perineal incision. Median surgical time was 35 minutes (range 25-60). Discharge occurred on day 1 after removing the indwelling urethral catheter.
In 4 cases (6%), the device was removed because of infection/periurethral erosion. At 18 months, 62 patients were valuable; continence was recovered totally in 49 cases (79%), partially in 9 (15%) cases, and remained unchanged in 4 (6%). No one needed self-catheterization to empty the bladder.
Periurethral constrictor improved continence in most of the patients. Nevertheless, a larger series and longer follow-up are needed to confirm safety and to test durability.
评估尿道周围紧缩器治疗前列腺切除术后尿失禁的安全性和疗效。
尿道周围紧缩器是一种微创、低成本（2000 欧元）的装置，基于可调节的闭塞机制。2004 年 12 月至 2010 年 3 月，通过 3-5 厘米的会阴切口，将该装置植入 66 例轻度至重度尿失禁（每天 3 个或更多尿垫）患者中。中位手术时间为 35 分钟（范围 25-60 分钟）。拔除留置导尿管后第 1 天即可出院。
4 例（6%）因感染/尿道周围侵蚀而取出装置。18 个月时，62 例患者有价值；49 例（79%）完全恢复尿控，9 例（15%）部分恢复，4 例（6%）无变化。没有人需要自行导尿排空膀胱。
尿道周围紧缩器可改善大多数患者的尿控。然而，需要更大的系列和更长的随访来确认安全性并测试耐用性。
