Репозиторий Университета

Memokath Stent Failure in Recurrent Bulbar Urethral Strictures: Results From an Investigative Pilot Stage 2A Study


  • Бутнару Д.В. (Директор)
  • Черныш А.М. (Профессор)
  • Несвижский Юрий Владимирович (Профессор)
Журнал: Urology
БД: WOS, Scopus

Аннтотация

Objective To evaluate the efficacy of the Memokath stent in managing recurrent bulbar urethral strictures. Materials and Methods This is an investigative pilot stage 2A study in patients with a recurrent bulbar urethral stricture who underwent a Memokath stent implant from January 2014 to January 2016 in a single high-volume centre for urethral reconstruction. The Memokath stent (Pnn Medical A/S, Kvistgaard, Denmark) is manufactured from nitinol, a biocompatible alloy of nickel and titanium, which is endoscopically placed. It has a 24Fr. outside diameter and is preloaded on a disposable delivery device. When correctly positioned, the stent is anchored by a warm water (55C) instillation which expands the proximal end of the stent from 24Fr to 42Fr .The stent was provided in lengths of 3 to 7 cm in 1 cm increments. Results Sixteen patients were included in the study. Median follow-up was 16 mo. In 7 patients (43.7%) the stent was removed within 1 year. The main adverse events were pain, encrustations, stones and recurrent strictures. Four patients (25%) were considered a success and 12 (75%) were failures. Study limitations include the small sample. Conclusion Memokath stent was deemed to be not clinically helpful and had significant side effects and therefore should not be considered a treatment option for men with bulbar urethral strictures.


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