PMID: 9440853Jan 24, 1998Paper

Experimental and clinical experience with new pyeloureteral stents in pediatric urology

Journal of Endourology
U FriedrichM Muhr

Abstract

In light of the many problems with the use of conventional external stents in supravesical reconstructive urinary tract surgery in children; e.g. the risk of infection, urodynamic malfunction, and lack of flexibility insertion methods, the return to internal pyeloureteral stenting is a much discussed topic in pediatric urology. In order to improve the generally unsatisfactory situation, we developed, together with the Rüsch Co., a new type of directable and deconnectable ureteral stent. This polyurethane catheter features a membrane valve made of soft Wiruthan at the bladder end, which closes automatically with increasing bladder pressure. Thus, urinary backflow from the urinary bladder into the renal pelvis is prevented. Experimental data from antireflux stenting justify the clinical use of such a stent in children, as the urodynamic in vivo criteria and requirements were fulfilled completely. We now have clinical experience with the application of 340 pyeloureteral DD stents in 241 children from 1993 through 1996; 259 stents were inserted intraoperatively, and 81 stents were applied by endoscope. It was impressive that secondarily, renal function that had been considerably reduced could be regained and stabilized by long-term...Continue Reading

References

Aug 1, 1990·The Journal of Urology·P G RansleyT M Barratt
Dec 1, 1985·British Journal of Urology·J W RamsayD A Levison
Aug 1, 1974·British Journal of Urology·N Longrigg
Feb 1, 1994·British Journal of Urology·R G WoolfsonG H Neild
Dec 1, 1957·British Journal of Urology·G F MURNAGHAN

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Citations

Nov 9, 2020·European Surgical Research. Europäische Chirurgische Forschung. Recherches Chirurgicales Européennes·Christina Oetzmann von SochaczewskiOliver J Muensterer

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