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ORIGINAL ARTICLE
Year : 2008  |  Volume : 24  |  Issue : 2  |  Page : 182-185

Role of botulinum toxin-A in management of refractory idiopathic detrusor overactive bladder: Single center experience


Department of Urology, VM Medical College and Safdarjang Hospital, New Delhi, India

Correspondence Address:
N K Mohanty
C-II/124, Moti Bagh-I, New Delhi - 110 021
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0970-1591.40612

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Background: Overactive bladder (OAB) is a bothersome condition affecting the quality of life, financial constraint on the individual, and community. Anticholinergic drugs cannot be used for long term due to adverse side effects. Botulinum toxin has recently shown promising and encouraging result in management of OAB. Aim: Aim was to study the safety, efficacy, tolerability, and duration of effect of 200 units of botulinum toxin in refractory idiopathic detrusor overactivity. Materials and Methods: Thirty-nine female patients (average age of 52 years) clinically and urodynamically diagnosed as idiopathic OAB were injected 200 units of botulinum toxin-A mixed with 20 ml of normal saline, intradetrusally at the rate of 1 mL at each site for 20 such sites sparing the trigone and ureteric orifices. Follow up at 3rd, 6th, 9th, and 12th month with clinical and urodynamical questionnaire was done. Results: There were 4 dropouts and 35 patients were evaluated, of which 30 patients (85.7%) showed improvement in clinical features like frequency, urgency, nocturia, and incontinence within 1 week of injection, which lasted for mean period of 7 months (varying from 6 to 9 months). Volume at first desire to void improved from median baseline of 104-204 ml and maximum cystometric capacity of bladder increased from mean baseline value of 205-330 ml. The detrusor pressure decreased by 49% from the baseline and postresidual urine volume increased by 30% of maximum cystometric capacity of bladder. There was no adverse effect on our patient. Conclusion: Intradetrusor injection of Botox-A in management of refractory overactive idiopathic bladder is not only safe and well tolerated, but also very effective with practically no side effects.


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