Evaluation of Efficacy and Patient Satisfaction of Local Anaesthesia Versus Sedoanalgesia for Botox (R) Injection in the Urinary Bladder for the Treatment of Idiopathic Overactive Bladder

"Arm1: Botulinum toxin A injection under local anesthesia according to standard protocol:~Retrograde filling of the empty urinary bladder with a 1:1 mixture of 50 ml lidocaine 1% mixed with 50 ml sodium bicarbonate 8.4%, leave the local anesthetic mixture in the bladder for 15 minutes.~Transurethral, intravesical injection of a total of 100IE botulinum toxin A dissolved in 10 ml NaCl 0.9% into the detrusor at 10 points using a rigid 70 degree cystoscope~Arm 2: botulinum toxin A injection in sedoanalgesia according to the anesthesia standard protocol:~Intravenous administration of remifentanil (0.05-0.15µg/kg/min) and propofol. Transurethral, intravesical injection of a total of 100IE botulinum toxin A dissolved in 10ml NaCl 0.9% into the detrusor."