Another Therapeutic Role for Intravesical Botulinum Toxin: Patients with Long-stay Catheters and Refractory Bladder Pain and Catheter Bypass Leakage.

Botulinum neurotoxin (BotN) is used to treat detrusor overactivity (DO) refractory to medical treatment. Catheterised patients with symptoms of bladder spasm and catheter bypass leakage are challenging to manage and the efficacy of BotN is not established.

To review our experience using intravesical BotN to treat refractory bladder pain and catheter bypass leakage in patients with long-term indwelling catheters.

We carried out a review of data prospectively collected for patients with indwelling urethral or suprapubic catheters receiving BotN for the treatment of bladder spasms and catheter bypass leakage in a UK tertiary centre. An unvalidated structured questionnaire was used to ascertain quality of life (QoL) outcomes.

Qualitative data were collected for patient-reported symptoms and QoL. Paired Student t tests were applied for statistical analysis.

Of the 54 catheterised patients who received BotN, 14 (26%) were male and 40 (74%) were female. The mean follow-up was 38mo. Of the patients, 34 (63%) had a neurological aetiology and 94% had experienced failure of medical therapy before BotN administration. The BotN starting dose was 100 or 200U and 17 patients (31%) required dose escalation. All 34 neurogenic and six non-neurogenic patients started on 200U. After treatment, 63% of patients managed their catheter with intermittent drainage and 37% managed on free drainage; 51 patients (94%) reported that their symptoms were controlled and 38% reported being treated for a urinary tract infection following BotN. Patients reported a mean improvement in QoL of 7.7/10 following BotN, while 83% reported a significant reduction in urine leakage (p=0.0001).

Outpatient intravesical BotN is safe and efficacious for patients with long-term catheters suffering from bladder pain and catheter bypass leakage.

Outpatient administration of intravesical botulinum toxin is a safe and effective treatment for patients with a long-term indwelling catheter with bothersome urine storage symptoms. Attention should be paid to urine microbiology results before treatment to ensure appropriate prophylactic antibiotic treatment to reduce the incidence of urinary tract infections.

European urology focus. 2018 Nov 01 [Epub ahead of print]

Matthew J Young, Nadir I Osman, Laura Phillips, Altaf Mangera, Sheilagh V Reid, Richard D Inman, Christopher R Chapple

Department of Urology, Sheffield Teaching Hospitals, Sheffield, UK., Department of Urology, Sheffield Teaching Hospitals, Sheffield, UK. Electronic address: .

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