The ‘buoy’ stent: evaluation of a prototype indwelling ureteric stent in a porcine model
| Autor: | Farhan Khan, Robert Edwards, Alfred Krebs, Corollos S. Abdelshehid, Ralph V. Clayman, Leslie A. Deane, Leandro G. Sala, Elspeth M. McDougall, James F. Borin |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
medicine.medical_specialty
Swine Urology medicine.medical_treatment Hydronephrosis Ureter medicine Animals cardiovascular diseases Ureteric stent Device Removal Vesico-Ureteral Reflux business.industry Weight change Reflux Stent Equipment Design equipment and supplies medicine.disease Surgery surgical procedures operative medicine.anatomical_structure Urethra Urinary Tract Infections Swine Miniature Female Stents business Renal pelvis |
| Zdroj: | BJU International. 104:88-92 |
| ISSN: | 1464-410X 1464-4096 |
| DOI: | 10.1111/j.1464-410x.2008.08338.x |
| Popis: | OBJECTIVE To assess a prototype ureteric ‘buoy’ stent with a 10 F upper body tapering to a 3F tail, developed to potentially reduce stent-related irritative symptoms while providing an adequate mould for healing after endopyelotomy. MATERIALS AND METHODS Eighteen Yucatan minipigs had the stent placed either into the intact ureter (phase I) or after Acucise proximal endoureterotomy (phase II). Buoy stents were compared to 10/7 F endopyelotomy stents and to standard 7 F stents in phases I and II, respectively. The pigs were assessed for vesico-ureteric reflux, hydronephrosis and infection, before stent insertion and at harvest. Stents were weighed before and after placement and the removal force was measured. Pressure/flow studies, antegrade nephrostograms and specimens for histopathology from the renal pelvis, ureter and vesico-ureteric junction (VUJ) were obtained at harvest. RESULTS Thirteen minipigs survived the entire study. Ureteric flow with the stents in situ was better for buoy stents than for 10/7 F stents (P |
| Databáze: | OpenAIRE |
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