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Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models
Published on: August 9, 2012
Bladder reconstruction in children
1Department of Surgery, Children's Hospital, Boston, MA 02115.
Insights
Pediatric bladder reconstruction aims for a low-pressure, continent urine reservoir. Advances like gastrocystoplasty and the Mitrofanoff principle improve outcomes, though complications like stones and metabolic issues require ongoing management.
Area of Science:
- Pediatric Urology
- Reconstructive Surgery
- Urologic Oncology
Background:
- Bladder reconstruction in children addresses dysfunction from conditions like spina bifida, posterior urethral valves, and bladder exstrophy.
- The goal is to create a low-pressure, continent urine reservoir with complete emptying capabilities.
- Improved indications and patient selection have advanced reconstructive techniques.
Purpose of the Study:
- To review current methods and outcomes in pediatric bladder reconstruction.
- To highlight advancements and emerging complications in reconstructive urology.
- To discuss future directions in bladder replacement and dysfunction research.
Main Methods:
- Review of established and novel techniques in pediatric bladder reconstruction.
- Focus on augmentation using gastric segments (gastrocystoplasty) for improved bladder capacity and compliance.
- Integration of the continent catheterizable stoma (Mitrofanoff principle) for reliable continence.
Main Results:
- Gastrocystoplasty has shown success, especially in patients with impaired renal function.
- The Mitrofanoff principle offers a reliable method for achieving urinary continence.
- New complications, including stone formation and metabolic abnormalities, are being identified with these techniques.
Conclusions:
- Pediatric bladder reconstruction has advanced significantly, offering improved functional outcomes.
- Gastrocystoplasty and the Mitrofanoff principle are valuable tools, but potential complications require careful monitoring and management.
- Ongoing research into bladder replacement and the pathophysiology of pediatric bladder dysfunction promises further innovation.
Abstract:
Bladder reconstruction in children attempts to provide for a low pressure reservoir of urine that is continent and may be emptied completely at appropriate intervals. The most common underlying causes of bladder dysfunction that may require reconstruction include neuropathic bladders associated with spina bifida, posterior urethral valves, and bladder exstrophy. Indications and patient selection for reconstruction have greatly improved and a variety of methods are available; each with its own advantages and drawbacks. The recent increased application of gastric segments in augmenting the bladder to increase size and compliance has been very successful, and particularly in patients with impaired renal function. The continent catheterizable stoma (Mitrofanoff principle), using appendix or ureter, has gained widespread acceptance in reconstructive procedures and provides a reliable, convenient, and well-accepted means of achieving continence. Although advances have been made in reconstructive techniques, new complications are being experienced, including stone formation and metabolic abnormalities. Gastrocystoplasty, although an excellent option in reconstruction, has produced a symptom complex of hematuria and dysuria in some patients, at times to a significant degree. With experience, these complications are becoming better understood and new strategies for management are being developed. On the horizon, new approaches to bladder replacement are being explored, and new investigation into the pathophysiology of pediatric bladder dysfunction is ongoing.
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