Observational studyNeurourology and urodynamics2022
Evaluation of the effect of 100U of Onabotulinum toxin A on detrusor contractility in women with idiopathic OAB: A multicentre prospective study.
Observational study in Neurourology and urodynamics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 2 of them syntheses that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
8 citing papers in PubMed, 2 syntheses or guidelines pooled it, 10 citations in OpenAlex.
- Variation in the Definitions of Urinary Retention in Studies of Intravesical Botulinum Toxin for Idiopathic Overactive Bladder: A Narrative Systematic Review.Neurourology and urodynamics · 2025Pooled it
- Safety and efficacy of intravesical instillation of botulinum toxin-A in the treatment of interstitial cystitis/bladder pain syndrome and overactive bladder: a systematic review and meta-analysis.Frontiers in pharmacology · 2025Pooled it
- Article
- Urodynamic Predictive Factors for Successful Treatment Outcomes Following Intravesical Botulinum Toxin a Injection in Patients with Detrusor Overactivity.Biomedicines · 2025Article
- Urodynamic assessment and proteomic analysis of lower urinary tract dysfunction following nerve-sparing radical hysterectomy.Scientific reports · 2025Article
- Review
- Evaluation of the effect of 100U of Onabotulinum toxin A on detrusor contractility in women with idiopathic OAB: A multicentre prospective study.Neurourology and urodynamics · 2022Observational
- Review of combined intravesical and urethral botulinum neurotoxin type A injection in patients with neurogenic lower urinary tract dysfunction.Tzu chi medical journalReview
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Authors and funding
10 authors at 7 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
aimsIntradetrusor injection of Onabotulinum Toxin A (BTX-A) is a third-line treatment for overactive bladder (OAB). Voiding dysfunction and the need for intermittent catheterization are potential complications, consequent to bladder contractility (BC) decrement. Primary aim: to evaluate BC variation after BTX-A detrusor injection in women with idiopathic OAB.
methodsA prospective multi-institutional observational study was conducted. Medical history, bladder diary, 24-h pad test, and invasive urodynamic parameters were recorded before and 4-6 weeks after BTX-A 100U administration. BC was measured as Modified Projected Isovolumetric Pressure (PIP1), that is, maximum flow rate (Qmax) + detrusor pressure at Qmax (PdetQmax). Continuous variables were expressed as median and interquartile range. We compared continuous variables using Wilcoxon test and proportions between two times with Fisher exact test.
resultsNo changes in PIP1 were observed (p > 0.05) in 45 women enrolled between January 2018 and September 2019. Median age was 54.6 years. At baseline, 91.1% had urge urinary incontinence, with 4.9 ± 2.6 daily pads used and a 24-h pad test of 205.4 ± 70.8 g. Baseline detrusor contractility was normal in all the patients. Postoperatively, an improvement in the 24-h pad test (p < 0.01), daily voids (p < 0.01), and nocturia (p < 0.01) occurred. Urodynamics pointed out a significant reduction of detrusor overactivity rate (p < 0.01) and an increase of median maximum cystometric capacity (p < 0.01). No difference was observed in median Qmax (p > 0.05), PdetQmax (p > 0.05), and PVR (p > 0.05). No patient needed postoperative catheterization.
conclusionsThe current series provides evidence that detrusor injection of botulinum toxin is an effective option for treating OAB, without causing voiding dysfunction and BC impairment.
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