Gastrocytoplasty in Pediatric Patients

Ueoka, K.; Tanikaze, S.; Sugita, Y.

The Japanese Journal of Urology 85(2): 289-296

1994


DOI: 10.5980/jpnjurol1989.85.289
Accession: 068514277

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Abstract
Gastrocytoplasty was undertaken for 5 patients with bladder dysfunction and incontinence caused by neurogenic bladder in 3 cases, bladder exstrophy in 1 case and trauma in 1 case respectively. The age of the patients ranged from 5 years through 14 years at the operation. Decreased renal function was recognized in 3 cases with neurogenic bladder before reconstruction. The other 2 cases had normal renal function. Gastric segment was isolated with right gastroepiploic artery as a pedicle. Bladder was opened vertically and augmented with gastric segment. In 4 cases urethrogastrostomy with submucosal tunnel was performed in both sides. In neurogenic bladder cases, urethra was left without any surgical intervention, while other 2 cases underwent continent diversion using Mitrofanoff principle with urethra being closed. Postoperative follow up period was 18 to 22 months. All cases had increased bladder volume and the dilatation of upper urinary tract disappeared or decreased in size in those who had upper urinary tract dilatation before operation. Urinary incontinence completely disappeared in continent diversion cases. In neurogenic bladder cases urinary leakage through urethra was negligible with 4 hour interval clean intermittent catheterization. Laboratory examination showed no metabolic derangement in blood gas analysis and electrolytes even in those who had decreased renal function. Blood urea nitrogen (BUN) and serum creatinine showed a little improvement or the same level as before. We didn't encounter any troubles in CIC such as the obstruction caused by mucus produced by gastric segment. From our experience with those 5 pediatric cases underwent gastrocystoplasty, we thought gastric segment had some advantage as a tissue for augmentation cystoplasy compared with intestinal segment.