Case report: The theory of post-ileocystoplasty spherical configuration in patients with low-capacity bladder

Bladder augmentation can be performed by detubularization of the small or large intestine. A large capacity bladder is necessary to avoid frequent urination; thus, the ileal sac must be able to store the maximum volume of urine with relatively low pressure and the shortest length of the intestine. The acceptable pressure capacity should always be under ureteric pressure to avoid back pressure and kidney damage. Large capacity at low pressure is referred to as good compliance. Desirable preparations for augmentation, which is the use of the shortest length of the intestine, reduce the chance of diarrhea and vitamin deficiency and retain the intestines which may be required for augmentation.

Clinical and urodynamic evaluation of the recent postoperative condition of the patient who underwent ileocystoplasty, confirmed by the theory of detubularization (spherical) configuration.

Patient with complaints of frequent urination and small amount of urine. Ultrasound examination showed low volume bladder capacity and bilateral hydronephrosis and hydroureter. From cystography and VCUG examination, low capacity bladder, grade 1 VUR on the right side, grade 4 VUR on the left side accompanied by bilateral hydronephrosis and hydroureter. The patient has a history of right nephrectomy in 2014 for pyonephrosis due to kidney stones. The patient was then subjected to bladder augmentation using a segment of the ileum (ileocystoplasty) in 2015. In the postoperative evaluation, clinical symptoms, radiological and uroflowmetric examinations were evaluated.

The detubularization form offers greater volume and lower pressure in the reservoir to augment the bladder.