Efficiency and Safety of the Sting Operation on Kidney Transplanted Patients with Symptomatic Vesicoureteral Reflux and Neurogenic Bladder Dysfunction

Transplant Proc. 2020 Jan-Feb;52(1):191-195. doi: 10.1016/j.transproceed.2019.10.021. Epub 2019 Dec 31.

Abstract

Purpose: The study aimed to evaluate the feasibility and effectiveness of the endoscopic treatment in transplanted patients with neurogenic bladder who complained of symptomatic vesicoureteral reflux (VUR).

Material and methods: Fifteen patients with VUR who were previously diagnosed with a neurogenic bladder were included in the study. The Lich-Gregoire technique was used for ureterovesical anastomosis during transplantation, and a double J stent was inserted routinely in the ureter to protect the anastomosis. The sting operation was performed under general anesthesia in the lithotomy position. A 4.8 Fr double J stent (Boston Scientific, Boston, MA) was inserted to prevent the risk of ureteral obstruction. Successful treatment was defined as absent acute glomerulopyelonephritis (AGPN) during follow-up and as absent VUR on radiological evaluation.

Results: Clinical success was achieved in 6 of 10 patients (60%) who presented with recurrent febrile urinary tract infection (UTI) and in 4 of 6 (66%) patients who presented with gradually graft function deterioration. In 3 patients, the ureteral neo-orifice could not be localized during the operation owing to severe trabeculation of the bladder wall. The other 2 patients with a previous history of augmented bladder procedures had a hypotension attack during bladder filling; hence, the operation was stopped to prevent further complications. Two patients, whose clinical symptoms did not resolve after the sting procedure, accepted open ureteral reimplantation surgery.

Conclusion: Endoscopic management of the VUR in the transplant patients with neurogenic bladder function is safe and effective in at least half of the patients in a mid-term follow-up period.

MeSH terms

  • Anastomosis, Surgical / methods
  • Child
  • Child, Preschool
  • Endoscopy / methods
  • Female
  • Humans
  • Kidney Transplantation / adverse effects*
  • Male
  • Retrospective Studies
  • Urinary Bladder, Neurogenic / etiology*
  • Urinary Bladder, Neurogenic / surgery*
  • Urologic Surgical Procedures / methods*
  • Vesico-Ureteral Reflux / etiology*
  • Vesico-Ureteral Reflux / surgery*
  • Young Adult