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Gavi F, Ragonese M, Fettucciari D, Bientinesi R, Gandi C, Campetella M, Marino F, Racioppi M, Sacco E, Foschi N. Efficacy of transurethral botulinum toxin A injections for bladder outlet obstruction: A systematic review and meta-analysis. Urologia 2024; 91:468-476. [PMID: 38372240 DOI: 10.1177/03915603241228166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
INTRODUCTION Botulinum toxin A (BoNT-A) injections in the prostate gland have been used as a minimally invasive option for treating bladder outlet obstruction (BOO). However, the efficacy of transurethral BoNT-A injections for BOO is not well established in the literature. The aim of this study is to collect evidence on the efficacy of transurethral BoNT-A injections for the treatment of BOO. MATERIALS AND METHODS This systematic review and meta-analyses was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) statement. A systematic literature search was performed till December 2022. The study population consisted of adult patients diagnosed with BOO, who underwent transurethral injections of BoNT-A for the treatment of BOO. EVIDENCE SYNTHESIS Out of 883 records, we identified seven studies enrolling 232 participants, of which only one nonrandomized controlled trial was found. Four prospective studies and two retrospective studies. Three studies included patients with lower urinary tract symptoms (LUTS) and benign prostatic hyperplasia (BPH) and were included in the meta-analysis. Three studies included patients with urethral sphincter hyperactivity. One study included patients with primary bladder neck disease (PBND). All studies showed significant improvements from baseline in maximum urinary flow rate (Qmax), International Prostate Symptom Score (IPSS), and postvoid residual (PVR) at 3 and 6 months. The adverse events were mild in all studies. Hematuria, UTI, and urinary retention were reported across all studies. CONCLUSION In conclusion, transurethral BoNT-A injections have been shown to improve LUTS, QoL, and urodynamic parameters of individuals with BOO at 3 and 6 months after injections, and no serious adverse effects have been reported. However, data on the long-term benefits of this treatment are scarce, and more prospective, randomized studies with larger samples examining various injection techniques, dosages, and extended follow-up of recurrent injections are needed.
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Affiliation(s)
- Filippo Gavi
- Postgraduate School of Urology, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Urology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Mauro Ragonese
- Department of Urology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Daniele Fettucciari
- Postgraduate School of Urology, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Urology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Riccardo Bientinesi
- Department of Pathology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, University of Sacred Heart, Rome, Italy
| | - Carlo Gandi
- Department of Urology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Marco Campetella
- Urology Department, Isola Tiberina-Gemelli Isola Hospital, Catholic University Medical School, Rome, Italy
| | - Filippo Marino
- Postgraduate School of Urology, Università Cattolica del Sacro Cuore, Rome, Italy
- Department of Urology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
| | - Marco Racioppi
- Department of Pathology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, University of Sacred Heart, Rome, Italy
| | - Emilio Sacco
- Urology Department, Isola Tiberina-Gemelli Isola Hospital, Catholic University Medical School, Rome, Italy
| | - Nazario Foschi
- Department of Urology, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Rome, Italy
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Hu JC, Hsu LN, Lee WC, Chuang YC, Wang HJ. Role of Urological Botulinum Toxin-A Injection for Overactive Bladder and Voiding Dysfunction in Patients with Parkinson's Disease or Post-Stroke. Toxins (Basel) 2023; 15:166. [PMID: 36828479 PMCID: PMC9965145 DOI: 10.3390/toxins15020166] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 02/01/2023] [Accepted: 02/11/2023] [Indexed: 02/22/2023] Open
Abstract
Botulinum toxin A (BoNT-A) paralyzes muscle by blocking acetylcholine release at the synaptic junction. BoNT-A has shown its therapeutic effects in neurological disorders such as Parkinson's disease (PD) and post-stroke spasticity. A high proportion of patients with PD and post-stroke develop neurogenic detrusor overactivity (nDO) and then develop urinary incontinence and overactive bladder (OAB) symptoms. This study aimed to disclose the safety and efficacy of BoNT-A injection in treating bladder and voiding dysfunction in PD and post-stroke patients by reviewing the current evidence. At present, intradetrusor injection of BoNT-A is a Food and Drug Administration (FDA)-approved third-line therapy for nDO and idiopathic OAB. Although intradetrusor injection of onaBoNT-A 200 U is already approved for nDO treatment, most researchers would like to manage PD and post-stroke patients by using onaBoNT-A 100 U intradetrusor injection to achieve long-term efficacy and reduce adverse effects. However, in contrast to its inclusion in the International Continence Society guidelines for PD treatment, the clinical use of BoNT-A for post-stroke patients is limited to experimental use due to the development of urinary retention in about one-fifth of patients. For treating urethral pseudodyssynergia, half of patients may respond to onaBoNT-A 100 U urethral injection. However, refinement is needed to reduce unwanted urinary incontinence.
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Affiliation(s)
- Ju-Chuan Hu
- Division of Urology, Department of Surgery, Taichung Veterans General Hospital, Taichung 407, Taiwan
| | - Lin-Nei Hsu
- Department of Urology, An Nan Hospital, China Medical University, Tainan City 833, Taiwan
| | - Wei-Chia Lee
- Division of Urology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 807, Taiwan
| | - Yao-Chi Chuang
- Division of Urology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 807, Taiwan
- Center for Shock Wave Medicine and Tissue Engineering, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 807, Taiwan
| | - Hung-Jen Wang
- Division of Urology, Kaohsiung Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Kaohsiung 807, Taiwan
- Center for Shock Wave Medicine and Tissue Engineering, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 807, Taiwan
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Transurethral Incision of the Bladder Neck with or without Additional Procedure Resumes Spontaneous Voiding in Female Voiding Dysfunction-A Long-Term Retrospective Follow-Up. J Clin Med 2023; 12:jcm12041514. [PMID: 36836048 PMCID: PMC9964962 DOI: 10.3390/jcm12041514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2022] [Revised: 02/10/2023] [Accepted: 02/13/2023] [Indexed: 02/17/2023] Open
Abstract
AIM This study evaluated the long-term effectiveness of transurethral incision of the bladder neck (TUI-BN) with or without an additional procedure for female voiding dysfunction. METHODS Women with voiding difficulty who underwent TUI-BN in the last 12 years were included. All patients underwent a videourodynamics study (VUDS) at baseline and after TUI-BN. A successful outcome was defined as having a voiding efficiency (VE) increase by ≥50% after treatment. Patients with insufficient improvement were chosen for repeated TUI-BN, urethral onabotulinumtoxinA injection, or transurethral external sphincter incision (TUI-ES). The current voiding status, surgical complications, and additional surgeries were evaluated. RESULTS A total of 102 women with VUDS evidence of a narrow bladder neck during voiding were enrolled. The long-term success rate of the first TUI-BN was 29.4% (30/102) and increased to 66.7% (34/51) after combining TUI-BN and an additional procedure. The overall long-term success rates were 74.6% in women with detrusor underactivity (DU), 52.0% in detrusor overactivity and low contractility, 50.0% in bladder neck obstruction, 20.0% in hypersensitive bladder, and 75% in stable bladder (p = 0.022). Patients with a lower maximum flow rate (Qmax), (p = 0.002), lower voided volume (p < 0.001), lower corrected Qmax (p < 0.001), lower ladder contractility index (p = 0.003), lower voiding efficiency (p < 0.001), but larger post-void residual volume (p < 0.001) had a satisfactory surgical outcome. Spontaneous voiding was achieved in 66 (64.7%) patients, de novo urinary incontinence in 21 (20.6%), and vesicovaginal fistula in 4 (3.9%), all were repaired. CONCLUSIONS TUI-BN alone or in combination with an additional procedure was safe, effective, and durable in patients with DU to resume spontaneous voiding.
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Sphincteric Injection of Botulinum Toxin for Urinary Retention due to Neurogenic Bladder. CURRENT BLADDER DYSFUNCTION REPORTS 2022. [DOI: 10.1007/s11884-022-00657-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Nadeem M, Lindsay J, Pakzad M, Hamid R, Ockrim J, Greenwell T. Botulinum toxin A injection to the external urethral sphincter for voiding dysfunction in females: A tertiary center experience. Neurourol Urodyn 2022; 41:1793-1799. [PMID: 35979710 DOI: 10.1002/nau.25023] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2022] [Revised: 07/10/2022] [Accepted: 07/21/2022] [Indexed: 11/05/2022]
Abstract
AIM The aim of this study is to examine the functional outcomes of ona-botulinum toxin A (BTX-A) injection into the external urethral sphincter (EUS) for female patients with nonneurogenic nonrelaxing sphincter as the underlying cause of voiding dysfunction (VD). METHOD A retrospective analysis was performed for all the patients with the urodynamic findings of higher than expected maximum urethral closure pressure (MUCP) who received their first injection during the study period. All patients were evaluated with preoperative videourodynamic study and urethral pressure profilometry and received 100 U of EUS BTX-A. Patients aged less than 18 years and those with neurogenic bladder were excluded. All patients were followed up with the free flow, postvoid residuals (PVR), and patient global impression of improvement (PGI-I) scale at 6 weeks and then at 3 monthly intervals. RESULT We identified 35 female patients with a mean age of 37.5 ± 15 years (range 18-72 years) with a mean follow-up of 20 months. More than 50% of patients had a history of prior surgical intervention and 28 (80%) patients were catheter dependent, a suprapubic catheterization, or clean intermittent self-catheterization. Mean MUCP was 97.1 ± 22 cm of water. After treatment with BTX-A, 21 (60%) patients were able to void per urethral (p = 0.02). The mean maximum flow rate (Qmax) improved from 8.8 to 11 mls/s and the mean PVR decreased from 200 to 149 mls (p < 0.05). On multivariate analysis, we identified high preoperative PVR, high preoperative actual MUCP, and previous surgical intervention (urethral dilatation, sacral neuromodulation, and pelvic surgery) as predictors of successful voiding restoration. The mean duration of response was 4.7 months, 46% of patients requested repeat injection, and 29% were established on maintenance injections. On the 5-point PGI-I score, 13 (37%), 12 (34%), and 10 (29%) patients reported good, some, and no improvement, respectively. Quality of life was also improved in 60% of patients. Two patients had transient stress urinary incontinence (for <6 weeks) and there were no significant long-lasting adverse events. CONCLUSION EUS BTX-A is a valid treatment option for VD considering therapeutic options are limited. The patient must be made aware of the need for repeat treatments.
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Kuo HC. Clinical Application of Botulinum Neurotoxin in Lower-Urinary-Tract Diseases and Dysfunctions: Where Are We Now and What More Can We Do? Toxins (Basel) 2022; 14:toxins14070498. [PMID: 35878235 PMCID: PMC9324011 DOI: 10.3390/toxins14070498] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 07/08/2022] [Accepted: 07/14/2022] [Indexed: 01/27/2023] Open
Abstract
Botulinum toxin A (Botox) had been considered a promising drug that has an effect on functional disorders of the lower urinary tract. Because Botox exhibits anti-inflammatory and antispasmodic effects, Botox injection into the bladder can decrease detrusor contractility, reduce bladder hypersensitivity, and eliminate painful sensations. Injecting Botox into the bladder outlet can relax the hyperactivity of the bladder neck, and of the urethral smooth and striated muscles. Based on these therapeutic effects, Botox has been widely applied to treat lower-urinary-tract dysfunctions (LUTDs) such as overactive bladder and neurogenic detrusor overactivity. However, this treatment has not been licensed for use in other LUTDs such as interstitial cystitis, voiding dysfunction due to benign prostatic hyperplasia in men, and dysfunctional voiding in women. Botox has also not been approved for the treatment of children with overactive bladder and dysfunctional voiding; in patients with spinal cord injuries with detrusor sphincter dyssynergia and autonomic dysreflexia; or for poorly relaxed external sphincter in non-neurogenic patients. This article reviews the current knowledge regarding Botox treatment for LUTDs and discusses the potential clinical applications of Botox, as well as work that can be conducted in the future.
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Affiliation(s)
- Hann-Chorng Kuo
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Tzu Chi University, Hualien 97004, Taiwan
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Chen SF, Jhang JF, Jiang YH, Kuo HC. Treatment outcomes of detrusor underactivity in women based on clinical and videourodynamic characteristics. Int Urol Nephrol 2022; 54:1215-1223. [PMID: 35294677 DOI: 10.1007/s11255-022-03175-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 03/13/2022] [Indexed: 12/01/2022]
Abstract
PURPOSE Treatment of voiding dysfunction due to detrusor underactivity (DU) remains challenging. This study sought to determine the characteristics of video urodynamic study (VUDS) in female DU and outcomes after active treatment. METHODS A total of 409 female patients with VUDS-proven DU were recruited. All patients received conservative bladder management, with others receiving active treatment, such as oral medication, transurethral incision of bladder neck (TUI-BN), surgery for prolapse, and urethral botulinum toxin A (BoNT-A) injection, according to their VUDS characteristics. Treatment outcomes were then analyzed by different VUDS characteristics. RESULTS Satisfactory treatment outcomes were noted in 123 patients (30.0%), among whom 35 and 88 had a VE of > 90% and > 66.7%, respectively. A total of 165 patients (40.3%) had voiding efficiency (VE) of 33.3-66.7%, whereas 121 (29.6%) remained unable to void (12.5%) or had a VE of < 33.3% (17.1%). Conservative treatment had the worst outcome. Patients with normal or slightly reduced bladder sensation (49.3%) and those with a post-void residual (PVR) of < 250 mL (59.4%) displayed better satisfactory outcome after treatment; while TUI-BN and urethral BoNT-A injection promoted better treatment results. Patients with detrusor acontractility and a PVR of ≥ 500 mL still achieved high VE rates (> 66.7%) after TUI-BN. A 56.3% satisfactory outcome was achieved after TUI-BN, whereas 58.1% satisfactory outcome was noted in those with a tight external sphincter after medical treatment. CONCLUSION Female patients with DU exhibited VE improvement after active treatment. Patients with very low detrusor contractility and absent bladder sensation generally exhibited poor treatment outcomes.
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Affiliation(s)
- Sheng-Fu Chen
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, and Tzu Chi University, 707, Section 3, Chung-Yang Road, Hualien, Taiwan
| | - Jia-Fong Jhang
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, and Tzu Chi University, 707, Section 3, Chung-Yang Road, Hualien, Taiwan
| | - Yuan-Hong Jiang
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, and Tzu Chi University, 707, Section 3, Chung-Yang Road, Hualien, Taiwan
| | - Hann-Chorng Kuo
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, and Tzu Chi University, 707, Section 3, Chung-Yang Road, Hualien, Taiwan.
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Lee CL, Chen SF, Jiang YH, Kuo HC. Effect of videourodynamic subtypes on treatment outcomes of female dysfunctional voiding. Int Urogynecol J 2022; 33:1283-1291. [PMID: 35301544 DOI: 10.1007/s00192-022-05154-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 02/20/2022] [Indexed: 12/19/2022]
Abstract
INTRODUCTION AND HYPOTHESIS Dysfunctional voiding (DV) is not uncommon in women and is typically challenging to treat. This study retrospectively investigated the long-term treatment outcomes of DV women with different videourodynamics (VUDS) characteristics. METHODS Data of women with VUDS-proven DV (n = 302) were retrospectively analyzed. All patients at first received biofeedback pelvic floor muscle training and medications; urethral sphincter botulinum toxin A injection was administered after treatment failure. Long-term follow-up outcomes were graded by global response assessment (GRA) and objective responses of decrease of detrusor pressure (Pdet), increase in maximum flow rate (Qmax) and voiding efficiency (VE). The treatment outcomes were investigated among different VUDS subgroups. RESULTS Of 302 women, 165 (54.6%) had mid-urethral DV, 117 (38.7%) had distal urethral DV, and 20 (6.6%) had both bladder neck dysfunction (BND) and mid-urethral DV. A total of 170 (56.3%) patients were available for follow-up VUDS after treatment. Pdet was decreased in all three subgroups, but increase in Qmax and VE was only noted in the BND plus DV subgroup. Overall, 120 (70.6%) patients showed improvement (GRA ≥ 1), including 14 with BND plus DV (93.3%), 50 with mid-urethral DV (60.8%) and 56 with distal urethral DV (77.8%) (p = 0.044). All three subgroups showed significant reduction in bladder outlet obstruction index after treatment, with BND plus DV subgroup showing the greatest reduction. CONCLUSIONS Women with DV have different VUDS characteristics resulting from different pathophysiological mechanisms and treatment results. The VUDS characteristics may help predict treatment outcomes of female DV.
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Affiliation(s)
- Cheng-Ling Lee
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Tzu Chi University, 707, Section 3, Chung-Yang Road, Hualien, Taiwan
| | - Sheng-Fu Chen
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Tzu Chi University, 707, Section 3, Chung-Yang Road, Hualien, Taiwan
| | - Yuan-Hong Jiang
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Tzu Chi University, 707, Section 3, Chung-Yang Road, Hualien, Taiwan
| | - Hann-Chorng Kuo
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Tzu Chi University, 707, Section 3, Chung-Yang Road, Hualien, Taiwan.
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Lee CL, Jhang JF, Ho HC, Jiang YH, Hsu YH, Kuo HC. Therapeutic outcome of active management in male patients with detrusor underactivity based on clinical diagnosis and videourodynamic classification. Sci Rep 2022; 12:362. [PMID: 35013465 PMCID: PMC8748740 DOI: 10.1038/s41598-021-04237-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Accepted: 11/29/2021] [Indexed: 12/18/2022] Open
Abstract
Detrusor underactivity (DU) could be resulted from many different etiologies. Patients with DU might have reduced bladder sensation, low detrusor contractility, and large post-void residual volume. This study analyzed therapeutic outcome of active management for male DU patients, based on clinical and urodynamic characteristics. Male DU patients aged > 18 years old were retrospectively reviewed from the videourodynamic study (VUDS) records in recent 10 years. The patients’ demographics, VUDS results, treatment modalities, and treatment outcome were analyzed. The treatment outcomes were compared among patients with different DU subgroups, clinical diagnosis and treatment modalities. Patients with voiding efficiency of > 66.7% were considered having a successful treatment outcome. For comparison, 30 men with normal VUDS finding served as the control arm. Most of the DU patients had reduced bladder sensation. The reduced bladder sensation is closely associated with low detrusor contractility. After active treatment, a successful outcome was achieved in 68.4% of patients after bladder outlet surgery, 59.1% after urethral botulinum toxin A injection, and 57.6% after medical treatment, but only 18.2% after conservative treatment. A successful treatment outcome was achieved in patients with an intact detrusor contractility, either low (69.2%) or normal voiding pressure (81.8%), and in patients with a normal or increased bladder sensation (78.1%). However, patients with detrusor acontractile (41.3%) or absent bladder sensation (17.9%) had less favorable treatment outcome after any kind of urological management. This study revealed that active management can effectively improve voiding efficiency in patients with DU. The normal bladder sensation, presence of adequate detrusor contractility, and bladder outlet narrowing during VUDS provide effective treatment strategy for DU patients. Among all management, BOO surgery provides the best treatment outcome.
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Affiliation(s)
- Cheng-Ling Lee
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, 707, Section 3, Chung-Yang Road, Hualien, Taiwan.,Tzu Chi University, Hualien, Taiwan
| | - Jia-Fong Jhang
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, 707, Section 3, Chung-Yang Road, Hualien, Taiwan.,Tzu Chi University, Hualien, Taiwan
| | - Han-Chen Ho
- Department of Anatomy, Tzu Chi University, Hualien, Taiwan
| | - Yuan-Hong Jiang
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, 707, Section 3, Chung-Yang Road, Hualien, Taiwan.,Tzu Chi University, Hualien, Taiwan
| | - Yuan-Hsiang Hsu
- Department of Pathology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan.,Tzu Chi University, Hualien, Taiwan
| | - Hann-Chorng Kuo
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, 707, Section 3, Chung-Yang Road, Hualien, Taiwan. .,Tzu Chi University, Hualien, Taiwan.
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Ou YC, Huang KH, Jan HC, Kuo HC, Kao YL, Tsai KJ. Therapeutic Efficacy of Urethral Sphincteric Botulinum Toxin Injections for Female Sphincter Dysfunctions and a Search for Predictive Factors. Toxins (Basel) 2021; 13:toxins13060398. [PMID: 34199493 PMCID: PMC8226632 DOI: 10.3390/toxins13060398] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 05/25/2021] [Accepted: 05/31/2021] [Indexed: 11/16/2022] Open
Abstract
External urethral sphincter (EUS) dysfunction is a common, bothersome female voiding dysfunction. This study aims to analyze the characteristics of different types of female EUS dysfunction, as well as to determine the outcome predictors of sphincteric botulinum toxin A (BoNT-A) injection. Women receiving sphincteric BoNT-A injections for refractory EUS dysfunction were retrospectively reviewed. A comparison of the baseline clinical, urodynamic parameters and the treatment responses were made for patients with different EUS dysfunctions. A total of 106 females were included. Significantly increased detrusor overactivity, detrusor contracting pressure and the bladder outlet obstruction index with decreased urge sensation were noted in patients diagnosed with dysfunctional voiding or detrusor sphincter dyssynergia comparing to those diagnosed with poor relaxation of the external urethral sphincter. The average subjective improvement rate was 67% for the injection. The therapeutic effect was not affected by the type of EUS dysfunction. The multivariate analysis revealed that bladder neck narrowing and catheterization history were predictive of negative outcomes. There is a distinct urodynamic presentation for each type of female EUS dysfunction. Sphincteric BoNT-A injection provides a good therapeutic outcome for refractory EUS dysfunction. A narrowing bladder neck and a history of catheterization suggest poor therapeutic outcomes.
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Affiliation(s)
- Yin-Chien Ou
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan;
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
| | - Kuan-Hsun Huang
- Department of Urology, Dalin Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Chiayi 622, Taiwan;
| | - Hau-Chern Jan
- Division of Urology, Department of Surgery, National Cheng Kung University Hospital Dou-Liou Branch, Yunlin 640, Taiwan;
| | - Hann-Chorng Kuo
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien 970, Taiwan;
| | - Yao-Lin Kao
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
- Correspondence: (Y.-L.K.); (K.-J.T.)
| | - Kuen-Jer Tsai
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan;
- Research Center of Clinical Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
- Correspondence: (Y.-L.K.); (K.-J.T.)
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Therapeutic Effects of Urethral Sphincter Botulinum Toxin A Injection on Dysfunctional Voiding with Different Videourodynamic Characteristics in Non-Neurogenic Women. Toxins (Basel) 2021; 13:toxins13050362. [PMID: 34069448 PMCID: PMC8159094 DOI: 10.3390/toxins13050362] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/17/2021] [Accepted: 05/18/2021] [Indexed: 11/17/2022] Open
Abstract
Although female dysfunctional voiding (DV) is common in urological practice, it is difficult to treat. This study evaluated the therapeutic efficacy of urethral botulinum toxin A (BoNT-A) on non-neurogenic female DV. Based on the videourodynamic study (VUDS), the DV was classified into three subgroups according to the obstructive site. A successful treatment outcome was defined as an improvement of voiding efficiency by 10% and reported global response assessment by ≥1. The study compared therapeutic efficacy, baseline urodynamic parameters, and changes in urodynamic parameters between the treatment success and failure groups and among three DV subgroups. Predictive factors for successful treatment were also investigated. A total of 81 women with DV were categorized into three groups: 55 (67.9%) had mid-urethral DV, 19 (23.5%) had distal urethral DV, and 7 (8.6%) had combined BN dysfunction and mid-urethral DV after BN transurethral incision. The treatment outcome was successful for 55 (67.9%) patients and failed for 26 (32.1%). Successfully treated patients had a significant decrease of detrusor pressure, post-void residual volume, and bladder outlet obstruction index, as well as an increase in voiding efficiency at follow-up versus the treatment failure group. The logistic regression of urodynamic parameters and clinical variables revealed that a greater volume of first sensation of filling predicts a successful BoNT-A treatment outcome (p = 0.047). The urethral BoNT-A injection is effective in treating non-neurogenic women with DV, with a success rate of 67.9%. The videourodynamic characteristics of DV may differ among patients but does not affect the treatment outcome.
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Kuo HC. Videourodynamic precision diagnosis and treatment of lower urinary tract symptoms in women. UROLOGICAL SCIENCE 2021. [DOI: 10.4103/uros.uros_46_21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Santiago JE, Cameron AP, Navarrete RA. Addressing Sphincter Dysfunction in the Female with Neurogenic Lower Urinary Tract Dysfunction. CURRENT BLADDER DYSFUNCTION REPORTS 2020. [DOI: 10.1007/s11884-020-00597-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Jiang YH, Chen SF, Kuo HC. Role of videourodynamic study in precision diagnosis and treatment for lower urinary tract dysfunction. Tzu Chi Med J 2020; 32:121-130. [PMID: 32269943 PMCID: PMC7137365 DOI: 10.4103/tcmj.tcmj_178_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 09/20/2019] [Accepted: 10/03/2019] [Indexed: 11/15/2022] Open
Abstract
Lower urinary tract symptoms (LUTS) are complicated and cannot be used alone to diagnose lower urinary tract dysfunctions (LUTDs) and guide treatment. Patients with bladder outlet obstruction (BOO), impaired detrusor contractility, and hypersensitive bladder might present with voiding predominant symptoms, whereas patients with detrusor overactivity (DO), dysfunctional voiding, or BOO might also present with storage symptoms. To clearly identify the pathophysiology of LUTD, a comprehensive urodynamic study (UDS) including pressure flow and image during the storage and emptying phases, naming videourodynamic study (VUDS), is necessary. This study is especially mandatory in the diagnosis of (1) male LUTS refractory to medical treatment for benign prostatic hyperplasia, (2) female voiding dysfunction and urinary retention, (3) diagnosis of overactive bladder syndrome refractory to first-line medication, (4) management of female stress urinary incontinence and postoperative LUTS, (5) diagnosis and management of neurogenic LUTD, (6) pediatric urinary incontinence and enuresis, (7) geriatric urinary incontinence, and (8) recurrent bacterial cystitis. Although VUDS should not be used as a screening test for any LUTS, it should be considered when the initial management cannot relieve LUTS, or when invasive surgical procedure is planning to undertake for patients with refractory LUTS. VUDS should be recommended as the second-line investigation when the initial diagnosis and treatment based on the symptoms alone or noninvasive tests fail to improve LUTS.
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Affiliation(s)
- Yuan-Hong Jiang
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien, Taiwan
| | - Sheng-Fu Chen
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien, Taiwan
| | - Hann-Chorng Kuo
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien, Taiwan
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Mechanism of Action of Botulinum Toxin A in Treatment of Functional Urological Disorders. Toxins (Basel) 2020; 12:toxins12020129. [PMID: 32085522 PMCID: PMC7077222 DOI: 10.3390/toxins12020129] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 02/03/2020] [Accepted: 02/14/2020] [Indexed: 12/03/2022] Open
Abstract
Intravesical botulinum toxin (BoNT) injection is effective in reducing urgency and urinary incontinence. It temporarily inhibits the detrusor muscle contraction by blocking the release of acetylcholine (Ach) from the preganglionic and postganglionic nerves in the efferent nerves. BoNT-A also blocks ATP release from purinergic efferent nerves in the detrusor muscle. In afferent nerves, BoNT-A injection markedly reduces the urothelial ATP release and increases nitric oxide (NO) release from the urothelium. BoNT-A injection in the urethra or bladder has been developed in the past few decades as the treatment method for detrusor sphincter dyssyndergia, incontinence due to neurogenic or idiopathic detrusor overactivity, sensory disorders, including bladder hypersensitivity, overactive bladder, and interstitial cystitis/chronic pelvic pain syndrome. Although the FDA only approved BoNT-A injection treatment for neurogenic detrusor overactivity and for refractory overactive bladder, emerging clinical trials have demonstrated the benefits of BoNT-A treatment in functional urological disorders. Cautious selection of patients and urodynamic evaluation for confirmation of diagnosis are crucial to maximize the successful outcomes of BoNT-A treatment.
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Wu SY, Jiang YH, Kuo HC. Detrusor Underactivity and Bladder Outlet Procedures in Men. CURRENT BLADDER DYSFUNCTION REPORTS 2018. [DOI: 10.1007/s11884-018-0491-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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