Ureterovesical reimplantation after failure of endoscopic treatment of reflux by submucosal injection of polytef paste.

In a homogeneous series of 100 children (174 ureteric units) treated endoscopically (sting) for vesicorenal reflux, 33 children (42 ureters) presented with recurrent reflux after 2 months, 1 child had ureteral dilatation. 12 children (18 ureters) underwent a secondary Cohen's antireflux plasty without particular problems. In light of these cases, we consider that the submucosal injection of polytef paste modifies neither the process nor the immediate postoperative course of antireflux plasty. Histological study of the lower end of the ureters did not show an inflammatory reaction, except the presence inside the polytef paste of multiple macrophages, the long-term result of which is still unknown.