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A comparison of the double hydrodistention implantation technique (HIT) and the HIT with a polyacrylate/polyalcohol copolymer (PPC) for the endoscopic treatment of primary vesicoureteral reflux

  • Urology - Original Paper
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Abstract

Objectives

We aimed to compare the success rates of the double hydrodistention implantation technique (HIT) and the HIT with a polyacrylate/polyalcohol copolymer (PPC) for the treatment of primary vesicoureteral reflux (VUR) with a new nonbiodegradable tissue-augmenting substance (Vantris, Promedon, Cordoba, Argentina).

Methods

Between January 2011 and December 2012, fifty-two children who underwent subureteric injection for primary VUR are included. The children were randomly separated into two groups, the HIT and the double HIT groups, according to the type of injection. Success was defined as no reflux on a follow-up voiding cystourethrogram (VCUG) after 6 months. The patients were evaluated according to sex, age, grade of reflux, number of injections, and injected volume, and the radiological success rates were compared.

Results

Fifty-two patients underwent an endoscopic injection for primary grade III–V VUR. The HIT group consisted of 26 patients with 33 ureters, and the double HIT group consisted of 26 patients with 35 ureters. There were no significant differences in terms of the sex, ages, VUR grades, bilaterality between the two groups. The mean injected volumes were ml 1.12 (1.02–1.22) in the HIT group and 1.24 ml (95 % CI 1.10–1.38) in the double HIT group. The reflux was resolved in 21/33 (63.6 %) ureters in the HIT group and in 30/35 (85.7 %) ureters in the double HIT group, (p < 0.05). We had only one complication. This patient in the double HIT group, developed bilateral hydronephrosis and oliguric renal failure requiring open reimplantation at the sixth month.

Conclusion

We observed successful results double HIT method with PPC in Grade III–V reflux, but the long-term follow-up of patients is needed for hydronephrosis. As the double HIT treatment leads to a higher success rate, its use is preferable.

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Conflict of interest

The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. Pediatric Surgery Department, Sisli Etfal Education and Training Hospital, Istanbul, Turkey

    Melih Akin, Basak Erginel, Cetin Ali Karadag, Abdullah Yildiz, Nihat Sever, Nimetullah Mete Genc & Ali Ihsan Dokucu

  2. Pediatric Nefrology, Sisli Etfal Education and Training Hospital, Istanbul, Turkey

    Gül Sumru Özçelik

  3. Yildirim Oguz Goker sokak, 5. Gazeteciler Sitesi, C-1 blok, no:36, Akatlar, Besiktas, Istanbul, Turkey

    Basak Erginel

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  1. Melih Akin
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Correspondence to Basak Erginel.

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Akin, M., Erginel, B., Karadag, C.A. et al. A comparison of the double hydrodistention implantation technique (HIT) and the HIT with a polyacrylate/polyalcohol copolymer (PPC) for the endoscopic treatment of primary vesicoureteral reflux. Int Urol Nephrol 46, 2057–2061 (2014). https://doi.org/10.1007/s11255-014-0771-5

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  • DOI: https://doi.org/10.1007/s11255-014-0771-5

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