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Related Experiment Videos

Bladder augmentation: ureterocystoplasty versus ileocystoplasty

E H Landau1, V R Jayanthi, A E Khoury

  • 1Hospital for Sick Children, Toronto, Canada.

The Journal of Urology
|August 1, 1994
PubMed
Summary

Augmentation ureterocystoplasty using megaureters effectively improves bladder storage in children, matching ileocystoplasty outcomes without gastrointestinal complications. This technique offers a viable alternative for bladder augmentation, maintaining long-term functional improvements.

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Area of Science:

  • Urology
  • Pediatric Surgery
  • Biomaterials Science

Background:

  • Dysfunctional bladders in children often require augmentation to improve storage capacity.
  • Ileocystoplasty is a common method but carries risks of gastrointestinal complications and electrolyte imbalance.
  • Megaureters, arising from dilated and tortuous ureters, present a potential biomaterial for bladder augmentation.

Purpose of the Study:

  • To evaluate the efficacy of augmentation ureterocystoplasty using detubularized reconfigured megaureters in pediatric patients.
  • To compare the clinical and urodynamic outcomes of ureterocystoplasty with traditional ileocystoplasty.
  • To assess the long-term functional improvement and safety of megaureter bladder augmentation.

Main Methods:

  • A comparative study involving 8 children undergoing ureterocystoplasty with megaureters and 8 matched controls undergoing ileocystoplasty.

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  • Preoperative and postoperative assessment of total bladder capacity, pressure-specific bladder volume, bladder compliance, continence, and upper tract status.
  • Urodynamic analysis to evaluate bladder function and storage efficiency.

    • Main Results:

    • Both ureterocystoplasty and ileocystoplasty groups showed significant improvements in bladder capacity and compliance.
    • Ureterocystoplasty achieved comparable total bladder capacity (417 ml vs. 381 ml) and pressure-specific bladder volume (413 ml vs. 380 ml) to ileocystoplasty.
    • 87.5% of patients in the ureterocystoplasty group demonstrated normal postoperative urodynamics, with no significant gastrointestinal complications reported.

    Conclusions:

    • Megaureters can be effectively utilized for bladder augmentation in children with dysfunctional bladders, offering comparable functional outcomes to ileum.
    • Augmentation ureterocystoplasty provides a safe alternative to ileocystoplasty, avoiding common gastrointestinal complications.
    • The use of megaureters for bladder augmentation leads to sustained improvements in bladder storage function.