Management of recurrent urethral strictures with covered retrievable expandable nitinol stents: Long-term results

Eugene K. Choi, Ho Young Song, Hoon Shin Ji, Jin Oh Lim, Hyungkeun Park, Choung Soo Kim

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

OBJECTIVE. The purpose of this study was to evaluate the long-term clinical efficacy of temporary placement of covered retrievable stents in the management of recurrent urethral strictures. MATERIALS AND METHODS. During the period December 1998-December 2005, 32 men and one adolescent boy (mean age, 48.6 years; range, 16-73 years) with recurrent urethral strictures underwent fluoroscopically guided insertion of a total of 68 stents. Patients without complications underwent elective stent removal 2 or 4 months after stent insertion. Rates of clinical success (long-term clinical and radiographic resolution of urethral strictures) were assessed. The Mann-Whitney U test was used to compare the duration of stent placement in patients with long-term clinical resolution with that in patients with stricture relapse. RESULTS. Clinical success was achieved in 18 (55%) of the 33 patients. The mean duration of stent placement in patients with clinical success was significantly different from that in patients who had recurrences (p < 0.0001). Stricture relapse did not occur in only four (20%) of 20 cases of stent placement for 2 months. All 14 stent placements lasting at least 4 months resulted in long-term resolution after a mean follow-up period of 3.6 years. The most common complications necessitating early stent removal were stent migration (33.8% of stents) and tissue hyperplasia (20.6% of stents). CONCLUSION. Placement of a covered retrievable stent for a minimum of 4 months is effective in inducing long-term resolution of refractory urethral strictures. Stent migration remains the largest obstacle in achieving adequate duration of stent placement.

Original languageEnglish (US)
Pages (from-to)1517-1522
Number of pages6
JournalAmerican Journal of Roentgenology
Volume189
Issue number6
DOIs
StatePublished - Dec 2007
Externally publishedYes

Keywords

  • Fluoroscopy
  • Interventional radiology
  • Stent
  • Urethral stricture

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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