Epithelialization of permanent stents.
The permanent Urolume Wallstent has been used for the relief of bladder outlet obstruction (BOO), detrusor-external sphincter dyssnergia (DESD), and recurrent bulbar urethral strictures. Because of its woven construction, it allows ingrowth of urothelial tissue, resulting in complete epithelialization by 6 to 12 months. Certain risk factors are associated with poor epithelialization that may lead to hyperplastic tissue growth and occlusion of the urethral lumen. We review the literature and discuss the 5-year results of the North American Multicenter Urolume Trial with regard to epithelialization, hyperplastic tissue growth, and treatment of hyperplastic growth.
Corujo
M
M
Department of Urology, Long Island Jewish Medical Center, New Hyde Park, NY 11040, USA.
Badlani
G H
GH
D003251:Constriction, Pathologic / Q000209:etiology / Q000473:pathology / Q000601:surgery; D003558:Cystoscopy; D004847:Epithelial Cells / Q000473:pathology*; D005500:Follow-Up Studies; D006801:Humans; D006965:Hyperplasia; D008297:Male; D009656:North America; D011183:Postoperative Complications / Q000209:etiology / Q000473:pathology / Q000601:surgery; D011475:Prosthesis Failure; D012008:Recurrence; D012086:Reoperation; D015607:Stents / Q000009:adverse effects; D014524:Urethral Obstruction / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*; D014567:Urography; D019459:Urothelium / Q000473:pathology*