Technical refinements in endoscopic correction of vesicoureteral reflux.

Subureteral polytetrafluoroethylene (Teflon) injection (the Sting) was used for endoscopic correction of vesicoureteral reflux in more than 400 patients since March 1984. The basic principle involves injection of 0.2 to 0.8 ml. of polytetrafluoroethylene paste the intravesical portion of the affected ureter. The refinements of the technique and the various types of equipment used are described. A protocol for followup is outlined.