Simple, safe and economical: In patients with continent catheterizable ileal pouch after cystectomy, sterile solution for rinsing of pouches can safely be replaced by tap water

Patients with continent catheterizable ileal pouch are prospectively randomized in a two-arm crossover study. One study arm is "aseptic intermittent self catheterisation (ISC) and rinsing with sodium bicarbonate (NaCl) 0.9% solution". This study arm lasts 90 days. Every morning a dipstick urine test is done by the patient to check nitrite in urine. After that, the umbilicus is cleaned with aseptic solution. Then the pouch is catheterized with a sterile single-use catheter. After catheterizing, the poch is rinced with 3 times 60 milliliters of sterile NaCl 0.9% solution. In case of nitrite-negativity, the same procedure is repeated next morning. In case of nitrite-positivity, the same procedure is repeated at the next catheterization 4 hours later. The entire procedure takes about 15 minutes. In monthly intervals urine cultures are collected. In case of symptomatic urinary tract infection (UTI) an antibiotic therapy is prescribed. Evaluation of quality of life and costs by questionnaire. There is washout period is one day between the two study arms of the cross-over study.