1
|
Jaekel AK, Knüpfer SC, Kirschner-Hermanns R. [A review of intravesical treatment options in neuro-urology]. Aktuelle Urol 2024; 55:344-350. [PMID: 38897224 DOI: 10.1055/a-2307-4049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2024]
Abstract
Neurogenic lower urinary tract dysfunction is caused by various disorders of the central and peripheral nervous system. This can result in several malfunctions of the storage and voiding phase, which are reflected in symptoms such as urgency, urinary incontinence, recurrent urinary tract infections and post-void residual urine. Reduced quality of life, impairment of the upper urinary tract, reduced employment opportunities and worsening of the symptoms of the underlying condition can be the consequences. Therefore, the primary goals of neuro-urology are to protect the upper urinary tract, maintain continence and improve the quality of life of those affected. To achieve these goals, different intravesical drug and electrophysical therapy options are available. These article addresses these intravesical therapy options as well as their indication and relevance in neuro-urology.
Collapse
Affiliation(s)
- Anke K Jaekel
- Neuro-Urologie, Johanniter Neurologisches Rehabilitationszentrum Godeshoehe GmbH, Bonn, Germany
- Klinik und Poliklinik für Urologie und Kinderurologie, Sektion Neuro-Urologie, Universitätsklinikum Bonn, Bonn, Germany
| | - Stephanie C Knüpfer
- Neuro-Urologie, Johanniter Neurologisches Rehabilitationszentrum Godeshoehe GmbH, Bonn, Germany
- Klinik und Poliklinik für Urologie und Kinderurologie, Sektion Neuro-Urologie, Universitätsklinikum Bonn, Bonn, Germany
| | - Ruth Kirschner-Hermanns
- Neuro-Urologie, Johanniter Neurologisches Rehabilitationszentrum Godeshoehe GmbH, Bonn, Germany
- Klinik und Poliklinik für Urologie und Kinderurologie, Sektion Neuro-Urologie, Universitätsklinikum Bonn, Bonn, Germany
| |
Collapse
|
2
|
Chen PC, Lee KH, Lee WC, Yeh TC, Kuo YC, Chiang BJ, Liao CH, Meng E, Kao YL, Lee YC, Kuo HC. Treating Neurogenic Lower Urinary Tract Dysfunction in Chronic Spinal Cord Injury Patients-When Intravesical Botox Injection or Urethral Botox Injection Are Indicated. Toxins (Basel) 2023; 15:toxins15040288. [PMID: 37104226 PMCID: PMC10145925 DOI: 10.3390/toxins15040288] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/01/2023] [Accepted: 04/11/2023] [Indexed: 04/28/2023] Open
Abstract
Lower urinary tract symptoms (LUTS), such as urgency, urinary incontinence, and/or difficulty voiding, hamper the quality of life (QoL) of patients with spinal cord injury (SCI). If not managed adequately, urological complications, such as urinary tract infection or renal function deterioration, may further deteriorate the patient's QoL. Botulinum toxin A (BoNT-A) injection within the detrusor muscle or urethral sphincter yields satisfactory therapeutic effects for treating urinary incontinence or facilitating efficient voiding; however, adverse effects inevitably follow its therapeutic efficacy. It is important to weigh the merits and demerits of BoNT-A injection for LUTS and provide an optimal management strategy for SCI patients. This paper summarizes different aspects of the application of BoNT-A injection for lower urinary tract dysfunctions in SCI patients and provides an overview of the benefits and drawbacks of this treatment.
Collapse
Affiliation(s)
- Po-Cheng Chen
- Urologic Department, En Chu Kong Hospital, New Taipei City 237414, Taiwan
| | - Kau-Han Lee
- Division of Urology, Department of Surgery, Chi Mei Medical Center, Tainan 71004, Taiwan
| | - Wei-Chia Lee
- Department of Urology, Kaohsiung Chang Gung Memorial Hospital, College of Medicine, Chang Gung University, Taoyuan 33302, Taiwan
| | - Ting-Chun Yeh
- Division of Urology, Department of Surgery, Taiwan Adventist Hospital, Taipei City 10556, Taiwan
| | - Yuh-Chen Kuo
- Department of Urology, Yangming Branch of Taipei City Hospital, Taipei 11146, Taiwan
- Department of Exercise and Health Sciences, University of Taipei, Taipei 111036, Taiwan
| | - Bing-Juin Chiang
- College of Medicine, Fu-Jen Catholic University, New Taipei City 24205, Taiwan
- Department of Urology, Cardinal Tien Hospital, New Taipei City 23148, Taiwan
| | - Chun-Hou Liao
- Divisions of Urology, Department of Surgery, Cardinal Tien Hospital, New Taipei City 23148, Taiwan
- School of Medicine, Fu Jen Catholic University, New Taipei City 242062, Taiwan
| | - En Meng
- Division of Urology, Department of Surgery, Tri-Service General Hospital, National Defense Medical Center, Taipei 11490, Taiwan
| | - Yao-Lin Kao
- Department of Urology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
| | - Yung-Chin Lee
- Department of Urology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung 812, Taiwan
| | - Hann-Chorng Kuo
- Department of Urology, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien 97004, Taiwan
| |
Collapse
|
3
|
Mackay A, Sosland R, Tran K, Stewart J, Boone T, Khavari R. Prospective Evaluation of Intradetrusor Injections of OnabotulinumtoxinA in Adults With Spinal Dysraphism. Urology 2022; 161:146-152. [PMID: 34890686 PMCID: PMC8940632 DOI: 10.1016/j.urology.2021.09.045] [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: 05/07/2021] [Revised: 09/18/2021] [Accepted: 09/27/2021] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To prospectively evaluate the effectiveness of OnabotulinumtoxinA (BTX-A) on neurogenic overactive bladder (nOAB) in adults with congenital spinal dysraphism (CSD). METHODS We conducted a prospective, nonrandomized pilot study of 24 adults with CSD and neurogenic overactive bladder. Patients were evaluated with baseline video-urodynamics (UDS) and validated questionnaires, underwent injection 200U BTX-A, and then underwent repeat evaluation with questionnaires and UDS 1-3 months postinjection. A high-risk subgroup was separately analyzed based on adverse clinical characteristics (ie, decrease bladder compliance, vesicoureteral reflux, hydronephrosis, chronic kidney disease). RESULTS BTX-A injection improved patient recorded outcome measures seen in both I-QOL Score total (67.9 vs 75.5, P = .007) and Neurogenic Bladder Symptom Score total (38.0 vs 29.0, P = .001). On UDS, BTX-A injection significantly improved end filling pressure (16.0 vs 8.8, P = .036) and also improved bladder compliance (mL/cm H2O) (89.38 vs 135.81, P = .445). High-risk patients were found to have similar improvements in most subjective questionnaire scoring, a significant decrease in end filling pressures, and improved bladder compliance on UDS. CONCLUSION BTX-A can be used as an effective treatment in adults with CSD. We found that BTX-A significantly improved quality of life from patient reported outcome measurements as well as improving end filling pressures and bladder compliance. These improvements were seen even within our high-risk subgroup. Further studies are needed to evaluate long-term efficacy and appropriate follow-up of this at-risk population.
Collapse
Affiliation(s)
| | - Rachel Sosland
- Department of Urology, Houston Methodist Hospital, Houston TX
| | - Khue Tran
- Department of Urology, Houston Methodist Hospital, Houston TX
| | - Julie Stewart
- Department of Urology, Houston Methodist Hospital, Houston TX
| | - Timothy Boone
- Department of Urology, Houston Methodist Hospital, Houston TX
| | - Rose Khavari
- Department of Urology, Houston Methodist Hospital, Houston TX.
| |
Collapse
|
4
|
Video-Urodynamic Characteristics and Predictors of Switching from Botulinum Neurotoxin a Injection to Augmentation Enterocystoplasty in Spinal Cord Injury Patients. Toxins (Basel) 2022; 14:toxins14010047. [PMID: 35051024 PMCID: PMC8777902 DOI: 10.3390/toxins14010047] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 01/05/2022] [Accepted: 01/07/2022] [Indexed: 01/27/2023] Open
Abstract
Botulinum neurotoxin type A (BoNT-A) injection and augmentation enterocystoplasty (AE) are alternative and effective management strategies for neurogenic detrusor overactivity (NDO) refractory to pharmacotherapy. A great majority of patients with spinal cord injury (SCI) may, however, prefer BoNT-A injections to AE, due to the less invasive characteristics. In this study we evaluated the influence of various video-urodynamic study (VUDS) parameters in SCI patients who continuously received repeat BoNT-A detrusor injections or switched to AE to improve their bladder conditions. We compared the changes in the urodynamic parameters before and after each mode of treatment. In this retrospective study, all SCI patients with refractory NDO who had received at least one BoNT-A injection were enrolled. VUDS was performed before and after both BoNT-A injection and AE. All of the urodynamic parameters of the storage and micturition-including the bladder capacity of every sensation, maximal flow rate (Qmax), post-voiding residual volume, detrusor pressure at Qmax, and bladder contractility index-were recorded. A total of 126 patients, including 46 women and 80 men, with a mean age of 41.8 ± 13.1 years, were recruited for this study. All of the patients receiving either BoNT-A injection or AE had a statistically significant increase of bladder capacity at every time-point during filling and a decrease in detrusor pressure at Qmax during voiding. Patients who switched from BoNT-A to AE had greater improvements in their urodynamic parameters when compared with those who continued with BoNT-A injections. Accordingly, SCI patients receiving BoNT-A injections but experiencing few improvements in their urodynamic parameters should consider switching to AE to achieve a better storage function and bladder capacity.
Collapse
|
5
|
Satisfaction with Detrusor OnabotulinumtoxinA Injections and Conversion to Other Bladder Management in Patients with Chronic Spinal Cord Injury. Toxins (Basel) 2022; 14:toxins14010035. [PMID: 35051012 PMCID: PMC8779816 DOI: 10.3390/toxins14010035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 12/21/2021] [Accepted: 12/30/2021] [Indexed: 11/16/2022] Open
Abstract
This study investigated the satisfaction with continued detrusor Botox injections for urinary incontinence and conversion to other surgical procedures and bladder management procedures for neurogenic detrusor overactivity (NDO) in patients with chronic spinal cord injury (SCI). A total of 223 patients with chronic SCI underwent detrusor Botox 200U for urodynamically confirmed NDO and urinary incontinence. After initial detrusor Botox injections, patients opted to either continue detrusor Botox injections every six to nine months and on clean intermittent catheterization (CIC), switch to other bladder management procedures, or receive surgical procedures to improve their urinary incontinence, correct emergent complications, or have better voiding conditions without CIC. Urinary incontinence improvement rates and satisfaction with bladder management were assessed and compared between different subgroups, urodynamic parameters, and bladder management procedures. Finally, a total of 154 male and 69 female patients were included, among whom 56 (25.1%), 81 (36.3%), 51 (22.9%), and 35 (15.7%) showed a marked, moderate, mild, and no reduction in urinary incontinence, respectively. However, only 48.4% of the patients continued detrusor Botox injections over the mean follow-up period of seven years. Patients with cervical or thoracic SCI had fair incontinence improvement rates. The presence of high detrusor pressure and higher-grade bladder outlet resistance also predicted a decrease in incontinence. Although more than 50% of the patients switched to other bladder management procedures or received surgical treatment, 69.1% expressed satisfaction with their current status. This large cohort of patients with chronic SCI who received initial detrusor Botox injections revealed that only 48.4% continued with Botox injections. Those who received surgical procedures due to urological complications or demanded change in bladder management could achieve high satisfaction rates.
Collapse
|
6
|
Farrelly E, Lindbo L, Seiger Å. The Stockholm Spinal Cord Uro Study: 3. Urodynamic characteristics in a regional prevalence group of persons with spinal cord injury and indications for improved follow-up. Scand J Urol 2021; 55:412-418. [PMID: 34279177 DOI: 10.1080/21681805.2021.1954994] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AIMS Examine the outcome of urodynamic studies in a regional prevalence group of patients with traumatic spinal cord injury (SCI), explore relationships between urodynamic parameters and renal complications/other SCI-related dysfunctions, assess the role of urodynamics in SCI follow-up. METHODS In a cross-sectional study, 211 patients were included, who attended a yearly check-up and had urodynamics performed as part of the follow-up in addition to S-creatinine, S-cystatin-C, renal ultrasound, and a questionnaire regarding complications. Relationships between urodynamic parameters and renal complications/other SCI-related dysfunctions were explored by descriptive and comparative statistics. RESULTS Neurogenic detrusor overactivity (NDO) was found in 150, underactive/acontractile detrusor in 44, normal detrusor function in 17 patients. Maximum detrusor pressures during filling/voiding in NDO attained mean levels of >40 cm H2O in 68% of patients and >25 cm H2O in 83%. Reduced compliance of the bladder wall, cystometric bladder capacity <250 mL, and detrusor overactivity leakage during filling were associated with higher detrusor pressures. Detrusor overactivity during more than one-third of the filling phase was significantly related to signs of renal complications among patients with SCI duration 11-20 years. No significant relationships were found between other urodynamic parameters and renal/other SCI-related complications. Renal complications in underactive/acontractile and normal detrusor function co-varied with evidence of previous NDO and other co-morbidities which may negatively influence kidney function. CONCLUSIONS Maximum detrusor pressures during the filling/voiding phases attained high levels in a majority of patients. Detrusor overactivity during more than one-third of the filling phase was significantly related to signs of renal complications.
Collapse
Affiliation(s)
- Elisabeth Farrelly
- Division of Clinical Geriatrics, Department NVS, Karolinska Institute, Solna, Sweden.,Department of Surgical and Perioperative Sciences, Urology and Andrology, Umeå University Hospital, Umeå, Sweden
| | | | - Åke Seiger
- Division of Clinical Geriatrics, Department NVS, Karolinska Institute, Solna, Sweden.,Aleris Rehab Station, Stockholm, Sweden
| |
Collapse
|
7
|
Gross O, Leitner L, Rasenack M, Schubert M, Kessler TM. Detrusor sphincter dyssynergia: can a more specific definition distinguish between patients with and without an underlying neurological disorder? Spinal Cord 2021; 59:1026-1033. [PMID: 33963273 PMCID: PMC8397615 DOI: 10.1038/s41393-021-00635-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Revised: 04/13/2021] [Accepted: 04/13/2021] [Indexed: 11/16/2022]
Abstract
Study design Cross-sectional study. Objectives To evaluate if specific definitions of detrusor sphincter dyssynergia (DSD) might distinguish between individuals with spinal cord injury (SCI) and those with no underlying neurological disorder (NO ND). Setting Single tertiary university SCI center. Methods A series of 153 individuals, 81 with traumatic SCI and 72 with NO ND, were prospectively evaluated and included in this study. All individuals underwent a clinical neuro-urological examination, a neurophysiological work-up and a video-urodynamic investigation and were diagnosed with DSD as defined by the International Continence Society (ICS). We determined the DSD grades/types according to the classifications by Yalla (grade 1–3), Blaivas (type 1–3) and Weld (type 1–2). Distribution of the DSD grades/types were compared between SCI and NO ND individuals. Associations between the various DSD grades/types and clinical parameters, such as risk factors for upper urinary tract damage (all individuals) or lower extremity motor scores, SCI injury levels and severity scores (only SCI group), were assessed. Results The distribution of all DSD types were similar between groups (p > 0.05). None of the DSD classifications allowed risk assessment for upper urinary tract damage. A significant association between DSD type and other clinical parameters could not be found (p > 0.05). Conclusions None of the investigated DSD definitions can distinguish between patients with SCI and with NO ND. The more complex DSD classifications by Yalla, Blaivas or Weld cannot compete with the ICS binary yes-no definition which is pragmatic and straightforward for managing patients in daily clinical practice. Sponsorship None.
Collapse
Affiliation(s)
- Oliver Gross
- Department of Neuro-Urology, Balgrist University Hospital, University of Zürich, Zürich, Switzerland
| | - Lorenz Leitner
- Department of Neuro-Urology, Balgrist University Hospital, University of Zürich, Zürich, Switzerland
| | - Maria Rasenack
- Spinal Cord Injury Center, Balgrist University Hospital, University of Zürich, Zürich, Switzerland
| | - Martin Schubert
- Spinal Cord Injury Center, Balgrist University Hospital, University of Zürich, Zürich, Switzerland
| | - Thomas M Kessler
- Department of Neuro-Urology, Balgrist University Hospital, University of Zürich, Zürich, Switzerland.
| |
Collapse
|
8
|
Tiburtius C, Böthig R, Kowald B, Hirschfeld S, Thietje R. Can clinical and urodynamic parameters predict the occurrence of neutralizing antibodies in therapy failure of intradetrusor onabotulinumtoxin A injections in patients with spinal cord injury? BMC Urol 2020; 20:113. [PMID: 32741365 PMCID: PMC7397590 DOI: 10.1186/s12894-020-00683-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2020] [Accepted: 07/23/2020] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND The aim of the study was to clarify whether clinical and/or urodynamic parameters could be used to infer the probability of neutralizing antibody (NAb) formation as a possible cause of therapy failure (non-response, NR) in patients with neurogenic detrusor overactivity (NDO) due to acquired spinal cord injury/disease (SCI/D) treated with intradetrusor botulinum neurotoxin A (BoNT-A) injections. METHODS A retrospective chart review was performed of all patients with SCI/D who underwent both intradetrusor onabotulinumtoxin A injections and the determination of neutralizing antibodies against BoNT-A between January 1, 2002, and December 31, 2018. NR was defined as urodynamically confirmed persistent or reappearing NDO. RESULTS A total of 2700 BoNT-A injections in 414 patients were ascertained. In 69 patients with primary NR after the first BoNT-A injection (n = 6) or with secondary NR after more than one BoNT-A injection (n = 63), an antibody analysis was performed. Antibody examination showed 36 (52.2%) negative, 5 (7.2%) borderline and 14 (each 20.3%) each of positive and highly positive values. Subgroup analysis indicated a correlation between NAb formation and the duration of BoNT-A therapy (p = 0.015), the mean number of BoNT-A injections (p = 0.011) and the time interval between BoNT-A applications (< 7 months, p = 0.022). Urodynamic data analysis indicate significant differences with cut-off values of MCC (< 225 ml, p = 0.038) and MDP (> 45 cmH2O, p = 0.040). However, in the regression analysis models, the predictive value for the occurrence of NAb was too low (MCC: ROC AUC 0.62, MDP: ROC AUC 0.52) to distinguish with sufficient certainty between NAb-positive and NAb-negative NR patients. CONCLUSIONS Despite significant correlations, clinical and urodynamic parameters are only partially suitable for predicting antibody formation against BoNT-A.
Collapse
Affiliation(s)
- Christian Tiburtius
- Centre for Spinal Injuries, Department Neuro-Urology, BG Trauma Hospital Hamburg, Bergedorfer Str. 10 Germany, 21033, Hamburg, Germany.
| | - Ralf Böthig
- Centre for Spinal Injuries, Department Neuro-Urology, BG Trauma Hospital Hamburg, Bergedorfer Str. 10 Germany, 21033, Hamburg, Germany
| | - Birgitt Kowald
- Biomechanical Laboratory, BG Trauma Hospital Hamburg, Hamburg, Germany
| | - Sven Hirschfeld
- Centre for Spinal Injuries, BG Trauma Hospital Hamburg, Hamburg, Germany
| | - Roland Thietje
- Centre for Spinal Injuries, BG Trauma Hospital Hamburg, Hamburg, Germany
| |
Collapse
|
9
|
Chen SF, Kuo HC. Will repeated botulinum toxin A improve detrusor overactivity and bladder compliance in patients with chronic spinal cord injury? Tzu Chi Med J 2020; 33:101-107. [PMID: 33912405 PMCID: PMC8059473 DOI: 10.4103/tcmj.tcmj_77_20] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Revised: 04/24/2020] [Accepted: 04/30/2020] [Indexed: 11/20/2022] Open
Abstract
Chronic spinal cord injury (SCI) can induce neurogenic detrusor overactivity (NDO), leading to urinary incontinence and renal damage due to low bladder compliance and high detrusor pressure during the storage and voiding of urine. In 2011, Botox® (onabotulinumtoxinA, botulinum neurotoxin serotype A [BoNT-A]) was approved by the Food and Drug Administration for the treatment of NDO. Intradetrusor injection of BoNT-A has been shown to have clinical utility for the treatment of urinary incontinence, with consequent improvements in quality of life for patients. In the past 20 years, this treatment has been shown to be an effective treatment for patients with SCI refractory to antimuscarinic medication. The present review focused on publications in MEDLINE/PubMed relating to botulinum toxin to evaluate the treatment outcomes of repeated injection of BoNT-A, the mechanisms of action, results of clinical and urodynamic studies, and adverse effects.
Collapse
Affiliation(s)
- 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
| |
Collapse
|
10
|
Botulinum toxin in low urinary tract disorders - over 30 years of practice (Review). Exp Ther Med 2020; 20:117-120. [PMID: 32509003 DOI: 10.3892/etm.2020.8664] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 03/03/2020] [Indexed: 01/22/2023] Open
Abstract
Botulinum toxin is a substance produced by Clostridium Botulinum and is responsible for human botulism. This substance is a poison, a neurotoxin, but used in limited quantities it can be a cure for some diseases. It is well connected to a large variety of medical applications. The mechanism of action relies on blocking the acetylcholine at the neuromuscular junction, which blocks the transmission of the nervous impulse with secondary flaccid paralysis. In urology, its role in idiopathic overactive bladder and neurogenic bladder is well known. We performed a thorough review using PubMed and other databases, revising the mechanisms of botulinum toxin action in urologic pathology, treatment procedures and other options. Botulinum toxin is a well-studied substance with a large number of applications in medicine. In urologic pathology, overactive bladder and neurogenic bladder are backed by robust studies that support the therapeutic role of this substance. The toxin has multiple effects, such as inhibition of the nerve growth factor, blocking the bladder sensory afferent pathway and apoptotic effect on the prostate tissue, by inhibiting the substance P, altering the nociceptive pathways. Interstitial cystitis and other rare pathologies show promising results, but further studies are needed. The role of botulinum toxin in benign prostatic hyperplasia is still not elucidated.
Collapse
|
11
|
Amiri M, Murgas S, Stang A, Michel MC. Do overactive bladder symptoms and their treatment-associated changes exhibit a normal distribution? Implications for analysis and reporting. Neurourol Urodyn 2020; 39:754-761. [PMID: 31945207 DOI: 10.1002/nau.24275] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 12/30/2019] [Indexed: 12/18/2022]
Abstract
AIMS To explore the use of means vs medians (assuming or not the presence of normal distribution) in studies reporting overactive bladder syndrome symptoms and to test for normal distribution of basal values and treatment-associated changes thereof in two large noninterventional studies. METHODS Systematic review of all original studies reporting on at least one overactive bladder syndrome symptom published in four leading urology journals in 2016 to 2017. Testing of the normal distribution of urgency, incontinence, frequency, and nocturia in two large noninterventional studies (n = 1335 and 745). RESULTS Among 48 eligible articles, 86% reported means (assuming a normal distribution), 6% medians (not making this assumption), and 8% a combination thereof. Baseline values for all four symptoms and treatment-associated alterations thereof deviated from a normal distribution (P < .0001 in all cases). Means overestimated basal value and absolute changes thereof as compared with medians, for example, basal number of incontinence episodes in study 1 5.1 vs 4. Differences between means and medians for percentage changes of symptoms were small and did not consistently favor means over medians. CONCLUSIONS Dominant reporting of means implies the assumption of a normal distribution of overactive bladder syndrome symptoms but our data from two noninterventional studies do not support this assumption. We recommend that basal values and absolute symptom changes should be reported as medians and subjected to nonparametric analysis; means may be appropriate for the reporting of percentage changes of symptoms.
Collapse
Affiliation(s)
- Marjan Amiri
- Institute of Medical Informatics, Biometry and Epidemiology, University Hospital Essen, Essen, Germany.,Center for Clinical Trials Essen (ZKSE), University Hospital Essen, Essen, Germany
| | | | - Andreas Stang
- Institute of Medical Informatics, Biometry and Epidemiology, University Hospital Essen, Essen, Germany.,Department of Epidemiology, School of Public Health, Boston University, Boston, Massachusetts
| | - Martin C Michel
- Department of Pharmacology, Johannes Gutenberg University, Mainz, Germany
| |
Collapse
|
12
|
Kroll P. The Current Role of Botox in a Pediatric Neurogenic Bladder Condition. CURRENT BLADDER DYSFUNCTION REPORTS 2019. [DOI: 10.1007/s11884-019-00516-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|