PURPOSE: To develop a device for percutaneous transrenal @entity432 . MATERIALS AND METHODS: The device was a double-body Gianturco-R  sch biliary stent constrained at the junction of the two stents to create an hourglass shape. One stent was coated with @entity1346 . One device was percutaneously placed in each of nine @entity1707 through a 9-F @entity4847 . Urographic and hematologic follow-up was performed for up to 12 weeks. RESULTS: Seven @entity1707 showed immediate, complete @entity432 , and two @entity1707 exhibited persistent incomplete high-grade obstruction. All animals exhibited varying degrees of @entity3041 and hydroureter. No device migration was noted. @entity532 were encountered during device placement in three @entity1707 . 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 @entity32 and @entity4 were noted. CONCLUSION: Transrenal @entity432 with the described device appears to be a viable method for treating @entity9132 .

Experimental evaluation of a new device for percutaneous transrenal XXXX .

@entity1707 :: ('9823', 'Species') :: ['pigs'] @entity32 :: ('MESH:D007249', 'Disease') :: ['inflammation'] @entity4 :: ('MESH:D004487', 'Disease') :: ['edema'] @entity532 :: ('MESH:D003925', 'Disease') :: ['Minor complications'] @entity3041 :: ('MESH:D006869', 'Disease') :: ['hydronephrosis'] @entity1346 :: ('MESH:D012828', 'Chemical') :: ['silicone'] @entity432 :: ('MESH:D001157', 'Disease') :: ['ureteral occlusion'] @entity9132 :: ('MESH:D014548', 'Disease') :: ['urinary fistulas'] @entity4847 :: ('MESH:D018317', 'Disease') :: ['Teflon sheath']
@entity432 :: (MESH:D001157,Disease) :: ['ureteral occlusion']
