Self-expanding polytetrafluoroethylene covered nitinol stents for the treatment of ureteral stenosis: preliminary report

The Journal of Urology
F J Trueba Arguiñarena, E Fernández del Busto

Abstract

We evaluated the treatment of ureteral stenosis using a self-expanding nitinol stent covered with expanded polytetrafluoroethylene (ePTFE). Between January 2001 and April 2003, 37 ePTFE covered metal stents were implanted in 20 patients with a total of 29 ureteral stenoses due to various causes. In general the stents were introduced by using a retrograde approach under combined endoscopic and fluoroscopic guidance with patients under spinal block and sedation. Followup assessments in 18 patients, including urography, were done 3, 6, 12, 18 and 24 months after the procedure. Followup endoscopic examinations were performed at 6 and 12 months in 8 patients. Immediate ureteral patency was achieved during all insertion procedures and maintained in most patients. Four patients died of the neoplastic process 3 to 12 months after implantation. Four stent migrations occurred in 3 patients (22.2%), which was resolved by implanting a new stent. Nonobstructive mucous hyperplasia was observed in 5 patients (27.7%) at the end of the stent, although there was no internal calcification. In all cases the stents remained patent until the current time or until patient death. We found that ePTFE covered nitinol stents were safe and effective for u...Continue Reading

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Citations

Jan 25, 2008·Cardiovascular and Interventional Radiology·Hwan-Hoon ChungMahmood K Razavi
Oct 29, 2005·Journal of Endourology·Evangelos N LiatsikosDimitrios Siablis
May 27, 2006·Journal of Endourology·James F BorinRalph V Clayman
Jan 16, 2010·Journal of Endourology·Nandakumar VenkatesanMukesh Doble
Apr 1, 2010·Therapeutic Advances in Urology·Abdulrahman Al-AownEvangelos Liatsikos
Mar 4, 2011·Indian Journal of Urology : IJU : Journal of the Urological Society of India·Abdulrahman Al AownEvangelos N Liatsikos
Apr 19, 2011·The Journal of Urology·John G Calleary
Apr 19, 2011·The Journal of Urology·Aaron D BensonBradley F Schwartz
Apr 15, 2006·Journal of Vascular and Interventional Radiology : JVIR·Colin P Cantwell, Frank C Lynch
Nov 18, 2008·The Journal of Urology·Matthew S ChristmanBrian K Auge
Jun 14, 2008·The Journal of Urology·J Stuart Wolf
Dec 24, 2015·Case Reports in Urology·Tomaž Smrkolj, Domagoj Šalinović
Jan 14, 2010·BJU International·Petros SountoulidesNikolaos Sofikitis
Jul 4, 2006·European Urology·Evangelos N LiatsikosDimitrios Siablis
Dec 14, 2017·Arab Journal of Urology·Panagiotis KallidonisUNKNOWN Young Academic Urologists of the European Association of Urology – Endourology, Urolithiasis Working Party
Jul 3, 2018·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Jong Woo KimBaek-Yeol Ryoo

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