Abstract
Endoscopic subureteral injection of tissue-augmenting substances has become an alternative to antibiotic prophylaxis and open surgery for the management of vesicoureteral reflux (VUR). Several injectable materials have been tried for this purpose. In this study, we tried to determine the efficacy of dextranomer/hyaluronic acid copolymer (Dx/HA) injection for the treatment of VUR in renal-transplant candidates. A total of 21 transplant candidates (29 ureteral units; 13 females, 8 males) with a mean age of 20.2 years (range 14-26 years) underwent endoscopic correction of VUR with Dx/HA. Diagnosis of VUR was made by voiding cystourethrography. The efficacy of the treatment was assessed with voiding cystourethrography at 3 months and 1 year postoperatively. Renal transplantation with living related donor organs was performed in 11 of the 21 patients. Endoscopic treatment was performed without complication in all cases. Higher success rates were obtained in patients with low-grade reflux, the overall success rate in the series being 82.7%. The mean follow- up after renal transplantation was 21.8 months (range 5-45 months). In one patient, reflux recurred after renal transplantation and was treated successfully by a repeat Dx/HA injection. The urine cultures of all patients remained sterile. Transplant candidates with VUR can be treated with Dx/HA, which cured the majority of our patients after one or two treatments with few low side effects. Endoscopic subureteral injection of Dx/HA has become an alternative treatment for VUR in transplant candidates. Long-term results are needed before making a final statement about its value.
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