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Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models
Published on: August 9, 2012
Effect of failed initial closure on bladder growth in children with bladder exstrophy
Nima Baradaran1, Raimondo M Cervellione, Ryan Orosco
1Division of Pediatric Urology, Brady Urological Institute, The Johns Hopkins Medical Institutions, Baltimore, Maryland, USA.
The Journal of Urology
|August 23, 2011
Summary
Successful initial bladder exstrophy closure promotes better bladder growth in children. Failed closures result in smaller bladder capacity and slower growth rates, highlighting the importance of primary reconstruction.
Area of Science:
- Pediatric Urology
- Congenital Abnormalities
- Surgical Outcomes
Background:
- Bladder exstrophy is a complex congenital condition requiring surgical correction.
- Initial surgical success significantly impacts long-term bladder development.
- Understanding bladder growth patterns is crucial for managing exstrophy patients.
Purpose of the Study:
- To compare bladder growth rates in children with successful primary bladder exstrophy closure versus those with initial failed closure.
- To assess the long-term impact of initial surgical outcome on bladder capacity.
- To evaluate the rate of bladder growth in the first five years of life.
Main Methods:
- Retrospective review of a bladder exstrophy database.
- Identification of patients with classic bladder exstrophy and serial cystograms (ages 1-6 years).
- Comparison of bladder capacity and growth rates between successful primary closure (Group 1) and successful reclosure after failed initial repair (Group 2) using a generalized linear mixed model.
Main Results:
- Group 1 (successful primary closure) had significantly larger cystographic bladder capacities at ages 2, 4, 5, and 6 years compared to Group 2 (p <0.05).
- Bladder growth rate was significantly slower in Group 2 (9.38 cc/year) compared to Group 1 (14.76 cc/year, p = 0.005).
- Pelvic osteotomy was more common in Group 1 (60%) than Group 2 (34%).
Conclusions:
- Initial failed bladder exstrophy closure is associated with significantly smaller bladder capacities and slower growth.
- Successful neonatal bladder closure is critical for optimal bladder development.
- These findings emphasize the importance of achieving a secure and successful primary closure for bladder exstrophy patients.
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