Experimental Evaluation of a New Device for Percutaneous Transrenal Ureteral Occlusion
| Autor: | Byron Marr, C. Humberto Carrasco, Laura Brewer, Kenneth C. Wright |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
medicine.medical_specialty
Percutaneous Swine Urinary Fistula medicine.medical_treatment Lumen (anatomy) Kidney Hydroureter Ureter medicine Animals Radiology Nuclear Medicine and imaging Hydronephrosis Lamina propria business.industry Stent equipment and supplies medicine.disease Surgery medicine.anatomical_structure Swine Miniature Stents Radiology Cardiology and Cardiovascular Medicine business |
| Zdroj: | Journal of Vascular and Interventional Radiology. 8:775-780 |
| ISSN: | 1051-0443 |
| Popis: | Purpose To develop a device for percutaneous transrenal ureteral occlusion. Materials and Methods The device was a double-body Gianturco-Rosch biliary stent constrained at the junction of the two stents to create an hourglass shape. One stent was coated with silicone. One device was percutaneously placed in each of nine pigs through a 9-F Teflon sheath. Urographic and hematologic follow-up was performed for up to 12 weeks. Results Seven pigs showed immediate, complete ureteral occlusion, and two pigs exhibited persistent incomplete high-grade obstruction. All animals exhibited varying degrees of hydronephrosis and hydroureter. No device migration was noted. Minor complications were encountered during device placement in three pigs. Mucosal folds and villus-like projections that arose from the lamina propria protruded into the lumen of the ureter at the cranial end of the covered stent and around the wire of the caudal stent. Varying degrees of mural inflammation and edema were noted. Conclusion Transrenal ureteral occlusion with the described device appears to be a viable method for treating urinary fistulas. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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