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Published on: October 12, 2017
Primary vesicoureteric reflux: treatment with subureteric injection of Polytef paste
1Wessex Regional Centre for Paediatric Surgery, Southampton General Hospital.
Insights
Endoscopic subureteric injection of polytetrafluoroethylene paste (Polytef) offers an 80% cure rate for pediatric refluxing ureters after two treatments. While effective and minimally invasive, long-term safety and efficacy require further investigation.
Area of Science:
- Pediatric Urology
- Minimally Invasive Surgery
- Biomaterials in Medicine
Background:
- Vesicoureteral reflux (VUR) is a common condition in children, potentially leading to kidney infections and damage.
- Endoscopic treatment offers a less invasive alternative to surgery for VUR.
Purpose of the Study:
- To evaluate the efficacy and safety of endoscopic subureteric injection of polytetrafluoroethylene paste (Polytef) for treating primary VUR in children.
- To determine the success rate and complication profile of this minimally invasive procedure.
Main Methods:
- A cohort of 34 children with 40 primary refluxing ureters underwent endoscopic subureteric injection of Polytef.
- Injected volumes ranged from 0.1 to 0.8 ml (mean 0.3 ml).
- Success was defined as complete resolution of reflux; a second injection was permitted if needed.
Main Results:
- A single injection successfully treated reflux in 26 ureters (65%).
- Reflux grade improved in 9 additional ureters.
- An overall cure rate of 80% was achieved after a second injection in 7 ureters.
- One case of self-limiting ureteric obstruction was the sole complication.
Conclusions:
- Subureteric Polytef injection is a quick, easy, and effective endoscopic treatment for pediatric VUR.
- The procedure demonstrates a high initial success rate and an 80% overall cure rate after a second injection.
- Long-term efficacy and safety of subureteric Polytef injection in children warrant further study and reservation.
Abstract:
A series of 34 children with 40 primary refluxing ureters were treated endoscopically with a subureteric injection of polytetrafluoroethylene paste (Polytef). The amount injected ranged between 0.1 and 0.8 ml (mean 0.3). A single injection cured the reflux in 26 ureters (65%) and the grade of reflux improved in a further 9 ureters. Seven ureters required a second injection and reflux was cured in 6 of these. The overall cure rate was therefore 80% after the second injection. There was one complication due to self-limiting ureteric obstruction following injection. The procedure is quick, easy to perform and effective. We have some reservations about the long-term efficiency and safety of subureteric Polytef injection in children.
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