Abstract
IntroductionThe range of indications for endoscopic treatment of vesicoureteral reflux opens more and more until including correction of secondary reflux (VUR) after ureteral reimplantation. However these cases suppose a technical challenge due to postoperative changes.The aim of this work is to present our experience on endoscopic treatment for VUR in ureteral units with Cohen reimplantation surgery, with special interest in the technical peculiarities of the procedure. Material and methodsA retrospective study of cases of secondary VUR after reimplantation surgery treated by subureteral injection. TechniqueWe put the needle perpendicular to submucous tunnel and inject medially to hole forming a wheal on the anterior face that occludes the meatus ResultsDuring the 1993-2016 period 21 injections were performed in 15 ureteral units. The ureteral pathology included primary VUR (4), duplex system with lower pole reflux (4), megaureter (3) and ureterocele (2). Average patient age was 5.7 years old (2-12). Succesful outcome had been got in 10 ureteral units (66.67%), a decrease of VUR grade in 4 (26.67%) and perseverance/no resolution of grade IV VUR in 1 (6.67%) DiscussionThe anti-reflux mechanism of reimplantation depends on optimizing the submucosous tunnel. This subgroup of pacients is small and there are few studies, hindering the agreement on the most appropiate technique. ConclusionEndoscopic treatment of secondary reflux after reimplantation surgery is a procedure with certain technical feature, but safe and effective offering an alternative prior to surgical reoperation.
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