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Steimling M, Steimling M, Malloy P, Madara K. The Effects of Running Foot Strike Manipulation on Pelvic Floor Muscle Activity in Healthy Nulliparous Females. J Appl Biomech 2024:1-8. [PMID: 39244190 DOI: 10.1123/jab.2024-0078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 05/24/2024] [Accepted: 07/03/2024] [Indexed: 09/09/2024]
Abstract
Vertical loading rate (VLR) and pelvic floor muscle activity (PFA) increase with running velocity, which may indicate a relationship between VLR and PFA. Foot strike pattern has been shown to influence VLR while running, but little is known about its influence on PFA. Twenty healthy women ran on a treadmill for 2 conditions: with a rearfoot strike and with a forefoot strike. PFA was measured with electromyography. Running kinematics associated with VLR were collected using inertial measurement units and tibial accelerometers. Change scores between conditions were calculated for average PFA and running kinematics: peak vertical tibial acceleration, vertical excursion of the center of mass (VO), and cadence. Paired t tests assessed differences between running conditions for all variables. Pearson correlations assessed the relationships between changes in PFA and running kinematics. PFA was significantly higher during the forefoot compared with the rearfoot strike condition. Change in vertical tibial acceleration was positively correlated with change in PFA during the right stance. Change in cadence was negatively correlated, and change in vertical excursion of the center of mass was positively correlated with change in PFA during left stance. The average PFA increased during the forefoot strike pattern condition. Changes in PFA were correlated with changes in running kinematics associated with VLR.
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Affiliation(s)
- Michael Steimling
- School of Rehabilitation Sciences, Moravian University, Bethlehem, PA, USA
- St Luke's University Health Network, Bethlehem, PA, USA
| | - Melinda Steimling
- School of Rehabilitation Sciences, Moravian University, Bethlehem, PA, USA
- St Luke's University Health Network, Bethlehem, PA, USA
| | - Philip Malloy
- Department of Physical Therapy, Arcadia University, Glenside, PA, USA
| | - Kathleen Madara
- School of Rehabilitation Sciences, Moravian University, Bethlehem, PA, USA
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Szymański JK, Krawczyk A, Starzec-Proserpio M, Raczkiewicz D, Kukulski P, Jakiel G. Can pelvic floor muscle function before surgery determine the outcome of surgical treatment of stress urinary incontinence in women? Neurourol Urodyn 2024; 43:1665-1673. [PMID: 38624023 DOI: 10.1002/nau.25466] [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] [Received: 01/08/2024] [Revised: 03/10/2024] [Accepted: 04/01/2024] [Indexed: 04/17/2024]
Abstract
AIM The study aimed to determine whether pelvic floor muscle (PFM) function before surgery may correlate with the success of surgical interventions for treating stress urinary incontinence (SUI). Our hypothesis was that addressing identified variables in preoperative rehabilitation could potentially improve surgical outcomes. METHODS This prospective observational study was conducted at a single center and enrolled women qualified to mid-urethral tape insertion for SUI between 2020 and 2022. Digital palpation and manometry (Peritron™ 9300 V) were used to evaluate PFM function. The following parameters were acquired: vaginal resting pressure, vaginal pressure during maximal voluntary contraction (MVC), the area under the curve during a 10-second MVC, moreover the ability to perform correct PFM contraction, reflexive PFM contraction during cough and relaxation were assessed. All measurements were performed before the surgical treatment and during follow-up assessments at 1, 3, and 6 months postoperatively. The primary endpoint of the study was defined as objective cure, characterized by a negative cough stress test (CST), along with a subjective assessment based on the Urogenital Distress Inventory-6 (UDI-6) and Incontinence Impact Questionnaire-7 (IIQ-7). RESULTS The study involved 57 eligible female participants, all of whom completed the 6-month follow-up. Objective cure was observed in 75.44% of cases, while subjective cure was reported in 33%. There was no association between PFM parameters and surgical outcomes. CONCLUSION The success of surgical treatment of SUI 6 months postsurgery is not related to preoperative pelvic floor muscle function.
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Affiliation(s)
- Jacek K Szymański
- 1st Department of Obstetrics and Gynecology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Agata Krawczyk
- Department of Rehabilitation, Medical University of Warsaw, Warsaw, Poland
| | | | - Dorota Raczkiewicz
- Department of Medical Statistics, Centre of Postgraduate Medical Education, School of Public Health, Warsaw, Poland
| | - Piotr Kukulski
- 1st Department of Obstetrics and Gynecology, Centre of Postgraduate Medical Education, Warsaw, Poland
| | - Grzegorz Jakiel
- 1st Department of Obstetrics and Gynecology, Centre of Postgraduate Medical Education, Warsaw, Poland
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Li M, Liu T, Wang B, Qiao P, Wang S. MR defecography in assessing stress urinary incontinence with or without symptomatic pelvic organ prolapse. World J Urol 2024; 42:321. [PMID: 38744781 DOI: 10.1007/s00345-024-05014-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 04/22/2024] [Indexed: 05/16/2024] Open
Abstract
PURPOSE Utilize magnetic resonance defecography (MRD) to analyze the primary pelvic floor dysfunctions in patients with stress urinary incontinence (SUI) associated with pelvic organ prolapse (POP), and in SUI patients with asymptomatic POP. METHOD We performed MRD in both SUI and POP subjects. As a primary analysis, the functional MR parameters were compared between the isolated POP and POP combined SUI groups. As a secondary analysis, the functional MR data were compared between the POP combined SUI and the SUI with asymptomatic POP (isolated SUI) groups. RESULTS MRD noted the main characteristics of SUI combined moderate or severe POP, including the shorter closed urethra length (1.87 cm vs. 2.50 cm, p < 0.001), more prevalent urethral hypermobility (112.31° vs. 85.67°, p = 0.003), bladder neck funneling (48.28% vs. 20.51%, p = 0.020), lower position of vesicourethral junction (2.11 cm vs. 1.67 cm, p = 0.030), and more severe prolapse of the posterior bladder wall (6.26 cm vs. 4.35 cm, p = 0.008). The isolated SUI patients showed the shortest length of the closed urethra (1.56 cm vs. 1.87 cm, p = 0.029), a larger vesicourethral angle (153.80° vs. 107.58°, p < 0.001), the more positive bladder funneling (84.85% vs. 48.28%, p = 0.002) and a special urethral opening sign (45.45% vs. 3.45%, p < 0.001). CONCLUSIONS Patients with SUI accompanying POP primarily exhibit excessive urethral mobility and a shortened urethral closure. SUI patients with asymptomatic POP mainly show dysfunction of the urethra and bladder neck, characterized by the opening of the urethra and bladder neck and a shortened urethral closure.
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Affiliation(s)
- Min Li
- Department of Radiology, Beijing Chao Yang Hospital, Capital Medical University, 8 Workers Stadium South Road, Chaoyang District, Beijing, 10020, China.
| | - Tongtong Liu
- Department of Radiology, Beijing Chao Yang Hospital, Capital Medical University, 8 Workers Stadium South Road, Chaoyang District, Beijing, 10020, China
| | - Biao Wang
- Department of Urology, Beijing Chao Yang Hospital, Capital Medical University, 8 Workers Stadium South Road, Chaoyang District, Beijing, 10020, China
| | - Peng Qiao
- Department of Urology, Beijing Chao Yang Hospital, Capital Medical University, 8 Workers Stadium South Road, Chaoyang District, Beijing, 10020, China
| | - Sumei Wang
- Department of Gynecology, Beijing Chao Yang Hospital, Capital Medical University, 8 Workers Stadium South Road, Chaoyang District, Beijing, 10020, China.
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Clearwater WL, Panushka K, Najor A, Laudano M, Fleischmann N. Reconstruction of Urethral Sphincter With Polyacrylamide Hydrogel. UROGYNECOLOGY (PHILADELPHIA, PA.) 2024; 30:293-299. [PMID: 38484245 DOI: 10.1097/spv.0000000000001470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2024]
Abstract
IMPORTANCE Urethral bulking is an alternative to synthetic midurethral sling for the treatment of stress urinary incontinence (SUI) in women. Urethral bulking agents, which are injected in the submucosal tissues of the proximal urethra/bladder neck, have demonstrated less adverse effects with similar satisfaction rates but lower subjective and objective cure rates when compared with midurethral sling. Cystoscopic Reconstruction of External Sphincter Technique (CREST) is a novel technique, which reinforces the natural closure mechanism of the external urinary sphincter (EUS). OBJECTIVE The aim of the study was to provide safety and efficacy data for injecting polyacrylamide hydrogel (PAHG) in the components of the female EUS. STUDY DESIGN This was a retrospective chart review of patients using CREST with PAHG as initial treatment for SUI by a single surgeon from January 2022 to October 2022. Exclusion criteria are as follows: younger than 18 years, prior SUI surgery, concomitant pelvic organ prolapse or reconstructive procedure, neurological conditions, or history of radiation. Subjective and objective cure rates were measured by patient-reported symptoms and cough stress test. Urinary retention, postoperative urinary infection, and de novo urinary urgency were assessed. RESULTS One hundred and thirteen consecutive patients met inclusion criteria with median follow-up of 3 months. Eighty-five percent of participants reported subjective improvement, 69% reported subjective cure, and 69% demonstrated objective cure. Nine patients reported transient postoperative retention, 8 reported postoperative urinary tract infections, and 5 reported de novo urgency. There were no serious adverse events. CONCLUSIONS CREST is a novel technique for injection of PAHG, into the EUS to treat SUI. Our data suggest that this technique could improve urethral injection outcomes with minimal complications.
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Affiliation(s)
| | | | - Anna Najor
- Urology, Albert Einstein College of Medicine, Montefiore Hospital
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Pająk PM, Wlaźlak E, Surkont G, Kalinka J. An assessment of the relationship between urethral hypermobility as measured by ultrasound and the symptoms of stress urinary incontinence in primiparous women 9-18 months postpartum. J Ultrason 2024; 24:20240010. [PMID: 38496788 PMCID: PMC10940277 DOI: 10.15557/jou.2024.0010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 02/29/2024] [Accepted: 07/25/2023] [Indexed: 03/19/2024] Open
Abstract
Aim The aim of the study was to estimate the relationship between bladder neck hypermobility as assessed by ultrasound and the occurrence of stress urinary incontinence as measured with the UDI-6 questionnaire in primiparous women 9-18 months postpartum. Materials and methods The study included 100 women 9-18 months after their first delivery, 19% of whom (study group) presented with urethral hypermobility. Ultrasound was used to determine the position and mobility of the bladder neck in order to assess the urethral hypermobility. A vector of ≥15 mm was defined as urethral hypermobility. Symptoms of stress urinary incontinence were assessed using question 3 of the UDI-6 questionnaire, in which the presence of symptoms was defined as a response rated from 1 to 4. Results We demonstrated a statistically significant relationship between urethral hypermobility and the symptoms of stress urinary incontinence with a statistical significance level of p <0.002. Conclusions Stress urinary incontinence is a common disorder in women, the pathophysiology of which is not fully understood. It has adverse effects on the quality of life, perception of one's own body and sexual function. Impairment of urethral fixation may play an important role in the pathophysiology of this common form of urinary incontinence. The study showed that urethral hypermobility, as assessed by ultrasound, contributes to stress urinary incontinence, as measured with the UDI-6 score. Although stress urinary incontinence is a multifactorial disorder influenced by anatomical changes and congenital anatomical features, it is easily diagnosed. Suburethral slings are an effective surgical technique; however, the incidence of postoperative voiding dysfunction or recurrent stress urinary incontinence is 10-20%. Therefore, an assessment of anatomical changes in stress urinary incontinence may help individualize the surgical strategy.
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Affiliation(s)
- Paulina Maria Pająk
- Department of Perinatology, 1st Department of Gynecology and Obstetrics, Medical University of Lodz, Lodz, Poland
| | - Edyta Wlaźlak
- Department of Operative Gynecology and Gynecologic Oncology, 1st Department of Gynecology and Obstetrics, Medical University of Lodz, Lodz, Poland
| | - Grzegorz Surkont
- Department of Operative Gynecology and Gynecologic Oncology, 1st Department of Gynecology and Obstetrics, Medical University of Lodz, Lodz, Poland
| | - Jarosław Kalinka
- Department of Perinatology, 1st Department of Gynecology and Obstetrics, Medical University of Lodz, Lodz, Poland
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Li S, Zou J, Wang Z, Wang M, Yuan Y, Lv H. Correlation Between Insulin Resistance and Urinary Incontinence in Female Patients with Type 2 Diabetes Mellitus. Int Urogynecol J 2024; 35:431-440. [PMID: 38189852 DOI: 10.1007/s00192-023-05715-x] [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] [Received: 09/06/2023] [Accepted: 12/06/2023] [Indexed: 01/09/2024]
Abstract
INTRODUCTION AND HYPOTHESIS Patients with type 2 diabetes mellitus (T2DM) are at a high risk of developing urinary incontinence; however, its pathogenesis is unclear. The purpose of this study is to explore the relationship between insulin resistance and urinary incontinence and its severity in female patients with T2DM. METHODS A total of 366 women with T2DM aged ≥18 years were enrolled in this study. Insulin resistance was evaluated by the homeostasis model insulin resistance (HOMA-IR) index and urinary incontinence was assessed by the International Consultation on Incontinence Questionnaire Short Form (ICIQ-SF). All subjects were divided into four groups according to HOMA-IR quartiles. Logistic regression analysis was performed to investigate the relationship between insulin resistance and urinary incontinence and its severity. RESULTS Among the 366 patients, 186 (50.8%) had urinary incontinence. The prevalence of urinary incontinence increased significantly with HOMA-IR quartiles (p < 0.001). Adjusted logistic regression analysis showed that compared with HOMA-IR ≤ 1.76, 2.81 ≤ HOMA-IR ≤ 4.27 was associated with a significantly increased risk of moderate incontinence (OR = 2.197, 95% CI 1.031-4.683, p = 0.041), and HOMA-IR ≥ 4.28 was associated with a significantly increased risk of severe incontinence (OR = 5.699, 95% CI 1.685-19.276, p = 0.005). Binary logistic regression analysis showed that HOMA-IR was the independent risk factor for urinary incontinence (p < 0.001). CONCLUSIONS Higher levels of insulin resistance are associated with urinary incontinence and its severity in female patients with type 2 diabetes mellitus.
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Affiliation(s)
- Shuyun Li
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
| | - Jingyi Zou
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
| | - Zhen Wang
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
| | - Mengke Wang
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
| | - Yue Yuan
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, Gansu, China
| | - Haihong Lv
- Department of Endocrinology, The First Hospital of Lanzhou University, 1 Donggang West Road, Lanzhou, 730000, Gansu, China.
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Cheng C, Li Q, Lin G, Opara EC, Zhang Y. Neurobiological insights into lower urinary tract dysfunction: evaluating the role of brain-derived neurotrophic factor. AMERICAN JOURNAL OF CLINICAL AND EXPERIMENTAL UROLOGY 2023; 11:559-577. [PMID: 38148930 PMCID: PMC10749380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Accepted: 11/17/2023] [Indexed: 12/28/2023]
Abstract
Lower urinary tract dysfunction (LUTD) encompasses a range of debilitating conditions that affect both sexes and different age groups. Understanding the underlying neurobiological mechanisms contributing to LUTD has emerged as a critical avenue for the development of targeted therapeutic strategies. Brain-derived neurotrophic factor (BDNF), a prominent member of the neurotrophin family, has attracted attention due to its multiple roles in neural development, plasticity, and maintenance. This review examines the intricate interplay between neurobiological factors and LUTD, focusing on the central involvement of BDNF. The review emphasizes the bidirectional relationship between LUTD and BDNF and explores how LUTD-induced neural changes may affect BDNF dynamics and vice versa. Growth factor therapy and the combined administration of controlled release growth factors and stem cells are minimally invasive treatment strategies for neuromuscular injury. Among the many growth factors and cytokines, brain-derived neurotrophic factor (BDNF) plays a prominent role in neuromuscular repair. As an essential neurotrophin, BDNF is involved in the modulation of neuromuscular regeneration through tropomyosin receptor kinase B (TrkB). Increasing BDNF levels facilitates the regeneration of the external urethral sphincter and contributes to the regulation of bladder contraction. Treatments targeting the BDNF pathway and sustained release of BDNF may become novel treatment options for urinary incontinence and other forms of lower urinary tract dysfunction. This review discusses the applications of BDNF and the theoretical basis for its use in the treatment of lower urinary tract dysfunction, including urinary incontinence (UI), overactive bladder (OAB), and benign prostatic hyperplasia (BPH), and in the clinical diagnosis of bladder dysfunction.
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Affiliation(s)
- Chen Cheng
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of MedicineShanghai 200011, China
| | - Qingfeng Li
- Department of Plastic and Reconstructive Surgery, Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of MedicineShanghai 200011, China
| | - Guiting Lin
- Knuppe Molecular Urology Laboratory, Department of Urology, School of Medicine, University of CaliforniaSan Francisco, CA 94143, USA
| | - Emmanuel C Opara
- Wake Forest Institute for Regenerative Medicine, Wake Forest University Health SciencesWinston-Salem, NC 27101, USA
| | - Yuanyuan Zhang
- Wake Forest Institute for Regenerative Medicine, Wake Forest University Health SciencesWinston-Salem, NC 27101, USA
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Varlı B, Çetinkaya ŞE, Seval MM, Dökmeci F. The Role of the Supine Empty Stress Test in the Evaluation of Women with Stress Urinary Incontinence: A Retrospective Cohort Study. J Clin Med 2023; 12:7697. [PMID: 38137766 PMCID: PMC10743827 DOI: 10.3390/jcm12247697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 12/07/2023] [Accepted: 12/09/2023] [Indexed: 12/24/2023] Open
Abstract
The International Continence Society recommends the supine empty stress test (SEST) as an accessory test in the evaluation of women with urinary incontinence, especially for the presence of intrinsic sphincter deficiency (ISD). The aim of this study was to investigate the relationship between the SEST and clinical findings in women diagnosed with stress urinary incontinence with single voiding cycle ambulatory urodynamics (AUM). AUM tracings of patients with lower urinary tract symptoms (LUTS = Lower urinary tract symptoms) (n = 513) were retrospectively reviewed, and 364 charts with urodynamic SUI were analyzed. Demographics, examination findings, scores of the Sandvik Incontinence Severity Index and validated questionnaires, and AUM findings were compared between SEST-positive and -negative groups. Additionally, the diagnostic accuracy of the SEST in the diagnosis of low abdominal leak point pressure (ALPP ≤ 60 cm H2O) in women with pure urodynamic SUI was calculated. The SEST was positive in 41.8% (n = 152) of the cohort. Women with a positive SEST had higher scores on the Sandvik severity index (9.2 ± 3.6 vs. 7.5 ± 3.8, p = 0.003) and lower ALPP (79.6 ± 29.3 vs. 98.4 ± 31.3, p < 0.001). The negative predictive value of the SEST for ISD was found to be 92.4%. Thus, the SEST seems to be an objective clinical test reflecting urinary incontinence severity while excluding the presence of ISD.
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Affiliation(s)
| | - Şerife Esra Çetinkaya
- Department of Obstetrics and Gynecology, Ankara University School of Medicine, Ankara 06620, Türkiye; (B.V.); (M.M.S.); (F.D.)
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Steenstrup B, Pelleray M, Cornu JN, Verdun S, Gilliaux M. Neutral posture education during cough can reduce urine leakage in women with cough-related stress urinary incontinence. Prog Urol 2023; 33:1083-1091. [PMID: 37758607 DOI: 10.1016/j.purol.2023.09.002] [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] [Received: 07/20/2023] [Revised: 09/03/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023]
Abstract
BACKGROUND Current literature highlights the difficulty in identifying an optimal educational technique for maintaining continence during cough. OBJECTIVE To characterize the effects of an educational intervention focusing on neutral posture during cough in women with cough-induced urinary incontinence (UI). METHODS This interventional study design included women with cough-induced UI. We recorded PFMs surface electromyographic (sEMG) peak activity, and assessed symptoms and quality of life (QoL) 6 weeks after the intervention. The effect of the experimental situation was estimated using a linear mixed model, sEMG measurements during coughing were indexed to each situation and adjusted to the resting value at, and a moderation analysis was used. RESULTS/FINDINGS Eighteen participants were included. The measurement situations (control versus experimental) did not have a statistically significant impact on sEMG peak activity during coughing: mean effect [95% CI] 3.42 [-1.28; 7.66]. Six weeks post-intervention, participants reported statistically significant decrease in urinary symptoms (P=0.0246) and significant improvement in QoL (P=0.00776). This was also particularly marked on the dimension related to effort activities (P=0.00162). CONCLUSION This study suggests that a brief educational intervention focusing on neutral posture during cough, without voluntary pre-contraction of the PFMs, has no clinically significant influence on sEMG peak activity of the PFMs in women with cough-induced UI. However, this intervention can lead to a significant improvement in urinary symptoms and QoL at 6 weeks. These improvements seem to be independent of electromyographic PFMs peak activity recorded during cough. As such, our preliminary results pave the way for future research. LEVEL OF EVIDENCE NP4.
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Affiliation(s)
- B Steenstrup
- Rouen University Hospital, Department of Urology, Rouen, France; La Musse Clinical Research Department and Physiotherapy Training Institute (Fondation La Renaissance Sanitaire), Saint-Sébastien-de-Morsent, France.
| | - M Pelleray
- La Musse Clinical Research Department and Physiotherapy Training Institute (Fondation La Renaissance Sanitaire), Saint-Sébastien-de-Morsent, France
| | - J N Cornu
- Rouen University Hospital, Department of Urology, Rouen, France
| | - S Verdun
- Lille Catholic hospitals, Biostatistics Department- Delegations for Clinical Research and Innovation, Lille Catholic University, Lille, France
| | - M Gilliaux
- La Musse Clinical Research Department and Physiotherapy Training Institute (Fondation La Renaissance Sanitaire), Saint-Sébastien-de-Morsent, France; Clinical Research Department, Axinesis, Wavre, Belgium
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Barba M, Cola A, Rezzan G, Costa C, Re I, Volontè S, Terzoni S, Frigerio M, Maruccia S. Flat Magnetic Stimulation for Urge Urinary Incontinence. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1999. [PMID: 38004048 PMCID: PMC10673601 DOI: 10.3390/medicina59111999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 10/30/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023]
Abstract
Background and Objectives: Strategies for overactive bladder syndrome (OAB) management involve, among others, strengthening the bladder outlet to suppress urgency and neuromodulating the sacral roots. Magnetic stimulation (MS) is a technology that involves an extracorporeal device that is able to provide an electromagnetic field specifically designed to interact with pelvic floor neuromuscular tissue. The resulting tissue electrical activity induces contraction of the pelvic muscle and neuromodulation of the S2-S4 sacral roots. Flat Magnetic Stimulation (FMS) is a relevant advancement involving homogeneous electromagnetic fields, which are able to optimize the effect on the entire pelvic area. However, the benefits of this new technology for OAB syndrome are poorly known. Consequently, the aim of our study is to analyze the outcomes and quality of life (QoL) impact of FMS with Dr. Arnold (DEKA, Calenzano, Italy) in women suffering from OAB syndrome associated with urinary incontinence. Materials and Methods: This prospective study included patients with OAB, urge urinary incontinence, and no ongoing OAB treatments. At baseline (T0), the Incontinence Impact Questionnaire (IIQ-7), the Female Sexual Function Index (FSFI-19), and the International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form (ICIQ-UI SF) were collected. Patients underwent 8 FMS sessions of 25 min each in one month. At the termination of the therapy (T1), women repeated the ICIQ-UI SF, FSFI-19, and IIQ-7 tools. Moreover, the Patient Global Impression of Improvement (PGI-I) questionnaire was collected to evaluate the cure rate. Results: Our study enrolled a total of 57 consecutive patients. Most women had at least one second- or third-line treatment before FMS, while the remaining naive patients had contraindications to pharmacological treatments. No women reported adverse effects during the treatment. After the treatment, we observed a decrease in the IIQ-7 (p < 0.001) and ICIQ-UI SF scores (p < 0.001) and an improvement in sexual function (p < 0.001) evaluated with FSFI-19. According to PGI-I scores, 42 (73.7%) women referred to some kind of improvement, scoring ≤ 3 points. Specifically, 8.7% of patients considered themselves very much improved, 29.8% much improved, 35.1% minimally improved, and 26.3% found no changes. FMS was effective in treating OAB symptoms without any adverse effects. The mechanism is supposed to be related to suppressing the initiation of micturition. This makes FMS a promising device for treating naive and refractory urge urinary incontinence. Conclusions: The new FMS represents a promising non-pharmacological option for the treatment of naive and refractory OAB.
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Affiliation(s)
- Marta Barba
- Department of Gynecology, IRCCS San Gerardo dei Tintori, University of Milano-Bicocca, 20900 Monza, Italy; (M.B.); (A.C.); (G.R.); (C.C.); (I.R.); (S.V.)
| | - Alice Cola
- Department of Gynecology, IRCCS San Gerardo dei Tintori, University of Milano-Bicocca, 20900 Monza, Italy; (M.B.); (A.C.); (G.R.); (C.C.); (I.R.); (S.V.)
| | - Giorgia Rezzan
- Department of Gynecology, IRCCS San Gerardo dei Tintori, University of Milano-Bicocca, 20900 Monza, Italy; (M.B.); (A.C.); (G.R.); (C.C.); (I.R.); (S.V.)
| | - Clarissa Costa
- Department of Gynecology, IRCCS San Gerardo dei Tintori, University of Milano-Bicocca, 20900 Monza, Italy; (M.B.); (A.C.); (G.R.); (C.C.); (I.R.); (S.V.)
| | - Ilaria Re
- Department of Gynecology, IRCCS San Gerardo dei Tintori, University of Milano-Bicocca, 20900 Monza, Italy; (M.B.); (A.C.); (G.R.); (C.C.); (I.R.); (S.V.)
| | - Silvia Volontè
- Department of Gynecology, IRCCS San Gerardo dei Tintori, University of Milano-Bicocca, 20900 Monza, Italy; (M.B.); (A.C.); (G.R.); (C.C.); (I.R.); (S.V.)
| | - Stefano Terzoni
- Department of Urology, ASST Santi Paolo e Carlo, San Paolo Hospital, 20142 Milano, Italy; (S.T.); (S.M.)
| | - Matteo Frigerio
- Department of Gynecology, IRCCS San Gerardo dei Tintori, University of Milano-Bicocca, 20900 Monza, Italy; (M.B.); (A.C.); (G.R.); (C.C.); (I.R.); (S.V.)
| | - Serena Maruccia
- Department of Urology, ASST Santi Paolo e Carlo, San Paolo Hospital, 20142 Milano, Italy; (S.T.); (S.M.)
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Hernández-Bonilla C, Zacapa D, Zempoalteca R, Corona-Quintanilla DL, Castelán F, Martínez-Gómez M. Multiparity Reduces Urethral and Vaginal Pressures Following the Bulboglandularis Muscle Stimulation in Rabbits. Reprod Sci 2023; 30:3379-3387. [PMID: 37277687 PMCID: PMC10643308 DOI: 10.1007/s43032-023-01263-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 05/08/2023] [Indexed: 06/07/2023]
Abstract
Unlike male mammals showing a well-delimited external urethral sphincter, female mammals have urogenital sphincters shaped by muscles like the urethrovaginal sphincter. Childbirth-related injuries affect morphometry and function of urogenital sphincters in women, which frequently underlies pelvic floor disorders, including stress urinary incontinence and pelvic organ prolapse. The bulboglandularis muscle (Bgm) seems to shape a urogenital sphincter in rabbits. We determined herein the effect of multiparity on urethral and vaginal pressures generated by the Bgm stimulation in age-matched nulliparous and multiparous chinchilla-breed rabbits to stimulate the Bgm with trains of ascending frequencies (from 1 to 100 Hz; 4 s duration each). Subsequently, the Bgm was excised, measured in width, and weighed. Significant differences (P ≤ 0.05) were determined with Mann-Whitney U or Student t-tests or repeated measures two-way ANOVA followed by Tukey tests. Spearman's partial coefficients were calculated to investigate the correlation between the highest pressure (urethral or vaginal) and the Bgm width. Multiparity reduced the weight and the width in the Bgm origin and medial regions. Urethral and vaginal pressures increased in response to the electrical stimulation of Bgm with frequencies from 20 to 100 Hz. Multiparas showed significant reductions in both types of pressures. We detected a strong correlation (conditioned by multiparity) between the medial Bgm width and the highest vaginal pressure. Our present findings demonstrate that multiparity impairs the function of Bgm, resulting in diminished urethral and vaginal pressures. Furthermore, the significant narrowness of the Bgm was correlated with the vaginal pressure recorded.
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Affiliation(s)
| | - Diego Zacapa
- Doctorado en Ciencias Biológicas, Universidad Autónoma de Tlaxcala, Tlaxcala, México
| | - René Zempoalteca
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México
| | | | - Francisco Castelán
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México
- Instituto de Investigaciones Biomédicas, Departamento de Biología Celular y Fisiología, Unidad Foránea Tlaxcala, Universidad Nacional Autónoma de México, Tlaxcala, México
| | - Margarita Martínez-Gómez
- Centro Tlaxcala de Biología de la Conducta, Universidad Autónoma de Tlaxcala, Tlaxcala, México.
- Instituto de Investigaciones Biomédicas, Departamento de Biología Celular y Fisiología, Unidad Foránea Tlaxcala, Universidad Nacional Autónoma de México, Tlaxcala, México.
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Zhong C, Hu P, Ran S. Authors' Reply to "Comments on 'Association Between Urinary Stress Incontinence and Levator Avulsion Detected by 3D Transperineal Ultrasound'". ULTRASCHALL IN DER MEDIZIN (STUTTGART, GERMANY : 1980) 2023; 44:554-555. [PMID: 36257332 DOI: 10.1055/a-1866-7729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- Chunyan Zhong
- Ultrasound, Women and Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Pan Hu
- Obstetrics and Gynecology, Women and Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Suzhen Ran
- Ultrasound, Women and Children's Hospital of Chongqing Medical University, Chongqing, China
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13
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You C, Zhao Y, Zhang C, Chen M, Shen W. Pelvic floor parameters predict postpartum stress urinary incontinence: a prospective MRI study. Insights Imaging 2023; 14:160. [PMID: 37755551 PMCID: PMC10533763 DOI: 10.1186/s13244-023-01488-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 07/22/2023] [Indexed: 09/28/2023] Open
Abstract
OBJECTIVE To investigate the pelvic floor changes in primiparas with postpartum stress urinary incontinence (SUI) after vaginal delivery using pelvic floor MRI. MATERIALS AND METHODS Fifty-two women were enrolled in the primiparous stress urinary incontinent (PSUI) group and 51 in the primiparous continent (PC) group. Thirty nulliparas were also recruited as the nulliparous control (NC) group. Levator ani muscle (LAM) injury, levator hiatus area (LHA), H-line, M-line, the distance from the bladder neck and cervix to the pubococcygeal line (B-PCL and U-PCL), levator plate angle, the anterior angle of the urethra, bladder neck descent, retrovesicourethral angle, functional urethral length, and a bladder neck funnel were evaluated on MRI images. Univariate and multivariate logistic regression analyses were used to explore anatomical predictors for SUI. RESULTS The primiparas in the PSUI group showed more obvious LAM injuries than in the PC groups (p = 0.001). LAM function assessment: the PSUI group had larger LHA and shorter B-PCL and U-PCL than the other groups during straining. Assessment of urethral mobility and function: the PSUI group had larger anterior angle of the urethra, bladder neck descent, retrovesicourethral angle, and shorter functional urethral length than the other two groups (all p < 0.05). Up to 88.5% of primiparas in the PSUI group showed bladder funnel (p < 0.001). The logistic regression analysis showed that retrovesicourethral angle, functional urethral length, and the presence of bladder funnel were significantly associated with postpartum SUI (p < 0.05). CONCLUSIONS Increased retrovesicourethral angle, shortened functional urethral length, and the presence of bladder funnel may be anatomical predictors for SUI in the early postpartum period. Urethral sphincter dysfunction plays an essential role in developing postpartum SUI. CRITICAL RELEVANCE STATEMENT This study used several measurements to reflect the anatomical structure and functional changes of the pelvic floor to identify the best anatomical predictors associated with postpartum stress urinary incontinence (SUI), aiming to provide new insights into treatment strategies for postpartum SUI. KEY POINTS • Increased retrovesicourethral angle, shortened functional urethral length, and the presence of bladder funnel are more commonly seen in primiparas with SUI. • The combination of retrovesicourethral angle, functional urethral length, and bladder funnel had the highest diagnostic performance in predicting postpartum SUI (AUC=0.947). • Urethral sphincter dysfunction may be the main pathophysiological foundation in SUI development.
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Affiliation(s)
- Cong You
- The First Central Clinical School, Tianjin Medical University, Nankai District, Tianjin, China
| | - Yujiao Zhao
- The First Central Clinical School, Tianjin Medical University, Nankai District, Tianjin, China
- Department of Radiology, Tianjin First Central Hospital, School of Medicine, Nankai University, No.24 Fukang Road, Nankai District, Tianjin, 300192, China
| | - Cheng Zhang
- The First Central Clinical School, Tianjin Medical University, Nankai District, Tianjin, China
| | - Mengyao Chen
- The First Central Clinical School, Tianjin Medical University, Nankai District, Tianjin, China
| | - Wen Shen
- Department of Radiology, Tianjin First Central Hospital, School of Medicine, Nankai University, No.24 Fukang Road, Nankai District, Tianjin, 300192, China.
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14
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Harland N, Walz S, Eberli D, Schmid FA, Aicher WK, Stenzl A, Amend B. Stress Urinary Incontinence: An Unsolved Clinical Challenge. Biomedicines 2023; 11:2486. [PMID: 37760927 PMCID: PMC10525672 DOI: 10.3390/biomedicines11092486] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 08/29/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
Stress urinary incontinence is still a frequent problem for women and men, which leads to pronounced impairment of the quality of life and withdrawal from the social environment. Modern diagnostics and therapy improved the situation for individuals affected. But there are still limits, including the correct diagnosis of incontinence and its pathophysiology, as well as the therapeutic algorithms. In most cases, patients are treated with a first-line regimen of drugs, possibly in combination with specific exercises and electrophysiological stimulation. When conservative options are exhausted, minimally invasive surgical therapies are indicated. However, standard surgeries, especially the application of implants, do not pursue any causal therapy. Non-absorbable meshes and ligaments have fallen into disrepute due to complications. In numerous countries, classic techniques such as colposuspension have been revived to avoid implants. Except for tapes in the treatment of stress urinary incontinence in women, the literature on randomized controlled studies is insufficient. This review provides an update on pharmacological and surgical treatment options for stress urinary incontinence; it highlights limitations and formulates wishes for the future from a clinical perspective.
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Affiliation(s)
- Niklas Harland
- Department of Urology, University of Tuebingen Hospital, 72076 Tuebingen, Germany; (N.H.); (S.W.); (A.S.)
| | - Simon Walz
- Department of Urology, University of Tuebingen Hospital, 72076 Tuebingen, Germany; (N.H.); (S.W.); (A.S.)
| | - Daniel Eberli
- Department of Urology, University Hospital Zurich, 8091 Zurich, Switzerland; (D.E.); (F.A.S.)
| | - Florian A. Schmid
- Department of Urology, University Hospital Zurich, 8091 Zurich, Switzerland; (D.E.); (F.A.S.)
| | - Wilhelm K. Aicher
- Centre for Medical Research, University of Tuebingen Hospital, Eberhard Karls University Tuebingen, 72076 Tuebingen, Germany;
| | - Arnulf Stenzl
- Department of Urology, University of Tuebingen Hospital, 72076 Tuebingen, Germany; (N.H.); (S.W.); (A.S.)
| | - Bastian Amend
- Department of Urology, University of Tuebingen Hospital, 72076 Tuebingen, Germany; (N.H.); (S.W.); (A.S.)
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Martin LC, Routzong MR, Abramowitch SD, Rostaminia G. Effect of Squeeze, Cough, and Strain on Dynamic Urethral Function in Nulligravid Asymptomatic Women: A Cross-Sectional Cohort Study. UROGYNECOLOGY (PHILADELPHIA, PA.) 2023; 29:740-747. [PMID: 36946905 DOI: 10.1097/spv.0000000000001345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
IMPORTANCE In the past, urethral shape, mobility, and urodynamics have been used to retrospectively demonstrate correlations with stress urinary incontinence. Our previous work has shown a relationship between urethral function and shape in symptomatic women. OBJECTIVE This study aimed to characterize the effect of pelvic floor squeeze and strain maneuvers on urethral shapes and pressure in a cohort of patients without pelvic floor disorders. STUDY DESIGN In this cross-sectional study, volunteers underwent dynamic pelvic floor ultrasound examination, and a modified urodynamic study. Urethral length, thickness, and proximal and distal swing angles were measured at rest, squeeze, and strain. The midsagittal urethral walls were traced so that a statistical shape model could be performed. Means and standard deviations of imaging and urodynamic measures were calculated. RESULTS Data from 19 participants were analyzed. On average during squeeze compared with rest, urethral length increased by 6%, thickness decreased by 42% (distal, P < 0.001), 10% (middle), and urethral pressure increased by 14%. Opposite shape changes-length decreased by 10% ( P = 0.001), thickness increased by 57% (distal, P < 0.001), 20% (middle, P < 0.001)-and increased urethral mobility were observed during strain, with larger pressure increases occurring (29%, P < 0.001). Fifty-one percent of the total shape variance described the differences between maneuvers. These differences were statistically different between groups ( P < 0.001 for comparisons, all others P > 0.05). CONCLUSIONS Dynamic ultrasound and urodynamics allow for the establishment of baseline ranges in urethral metrics (2-dimensional measures, shape, and pressure) and how they are altered during maneuvers. These data can allow for a more objective identification of incontinence via ultrasound and urodynamic testing.
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Affiliation(s)
- Liam C Martin
- From the Translational Biomechanics Laboratory, Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA
| | - Megan R Routzong
- From the Translational Biomechanics Laboratory, Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA
| | - Steven D Abramowitch
- From the Translational Biomechanics Laboratory, Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA
| | - Ghazaleh Rostaminia
- Female Pelvic Medicine and Reconstructive Surgery (FPMRS), Division of Urogynecology, University of Chicago, Northshore University HealthSystem, Skokie, IL
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Frey JN, Zellweger M, Krebs J, Christmann C. Impact of Defined Risk Factors on Degree of Urinary Stress Incontinence and Sling Outcome: A Retrospective Cohort Analysis. J Clin Med 2023; 12:5422. [PMID: 37629465 PMCID: PMC10456048 DOI: 10.3390/jcm12165422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 08/17/2023] [Accepted: 08/18/2023] [Indexed: 08/27/2023] Open
Abstract
Urinary stress incontinence is a distressing condition that has a severe impact on quality of life for most affected women. The insertion of the suburethral tension-free vaginal tape (TVT) is regarded as the gold-standard surgical treatment option. It is unclear whether all women with severe SUI benefit equally from TVT. Thus, the aim of our study was to identify risk factors for severe SUI and determine whether successful the resolution of incontinence after a TVT procedure was different in women with a higher degree of SUI. In total, 168 women were included in this retrospective cohort study. Women with severe SUI showed a significantly lower maximum urethral closure pressure (MUCP) (median 53 cmH2O in moderate vs. 39 cmH2O in severe, p = 0.001) and higher BMI (median 26.1 kg/m2 in moderate vs. 28.5 kg/m2 in severe, p = 0.045). Sonographic bladder neck funneling was detected significantly more often in women with severe SUI (27% in moderate vs. 57% in severe, p = 0.004). Lower MUCP and higher BMI were identified as significant predictors of severe SUI (p < 0.032). There was no difference in parity, age, functional urethral length and negative urethral stress pressure. Overall postoperative continence after the insertion of TVT was 91.9%. We found no significant difference in postoperative continence between women with severe vs. moderate SUI, suggesting that in our cohort the success of TVT was not significantly affected by the severity of SUI. In our cohort, low MUCP and high BMI were shown to be significant predictors of SUI severity. Nevertheless, treatment success of SUI with TVT did not differ substantially in women with more severe SUI.
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Affiliation(s)
- Janine N. Frey
- Luzerner Kantonsspital Frauenklinik, 6000 Luzern, Switzerland; (M.Z.); (C.C.)
| | - Mélanie Zellweger
- Luzerner Kantonsspital Frauenklinik, 6000 Luzern, Switzerland; (M.Z.); (C.C.)
| | - Jörg Krebs
- Clinical Trial Unit, Swiss Paraplegic Centre, 6207 Nottwil, Switzerland
| | - Corina Christmann
- Luzerner Kantonsspital Frauenklinik, 6000 Luzern, Switzerland; (M.Z.); (C.C.)
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17
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Jiang C, Zhang S, Chen J, Zhang Y, Cai K, Chen W, Wu Y, Liang C. Significance of 4D US parameters for the clinical treatment of female patients with stress urinary incontinence. Front Surg 2023; 10:1126293. [PMID: 37545841 PMCID: PMC10401039 DOI: 10.3389/fsurg.2023.1126293] [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: 12/22/2022] [Accepted: 06/19/2023] [Indexed: 08/08/2023] Open
Abstract
Background Stress urinary incontinence (SUI) that has been associated with abnormal pelvic floor muscle function or morphology is a common condition. This research aimed to study the impact of the four-dimensional (4D) pelvic floor ultrasound on the treatment of female patients with clinical diagnosis of SUI and to evaluate its clinical significance on SUI. Methods We enrolled 51 women with SUI. Before transobturator suburethral tape procedures, the patients underwent 4D pelvic floor ultrasonography. The measurements include residual urine volume, bladder detrusor thickness in resting state, the vertical distance from the bladder neck to the posterior inferior edge of pubic symphysis at rest and Valsalva movement, posterior angle of bladder urethra, and urethral rotation angle. The degree of movement of the bladder neck (the difference between the vertical distance from the bladder neck to the posterior inferior edge of the pubic symphysis under the resting state and the maximum Valsalva movement) and the formation of a funnel at the internal orifice of the urethra were calculated. Results The mean bladder detrusor thickness was 2.6 ± 0.9 mm, the vertical distance from the bladder neck to the posterior inferior edge of pubic symphysis was 27.7 ± 4.5 mm, the posterior angle of the bladder was 122.7 ± 18.9°, the vertical distance from the rectal ampulla to the posterior inferior edge of pubic symphysis was 18.5 ± 4.6 mm, and the mean area of hiatus of the levator ani muscle was 22.1 ± 6.0 cm2. The mean posterior angle of the bladder on Valsalva was 159.3 ± 23.1°, and the mean urethral rotation angle was 67.2 ± 21.4°. Conclusions The 4D pelvic floor ultrasound is a reliable method in evaluating preoperational morphological characteristics of patients with SUI. With the help of the 4D pelvic floor ultrasound, the individualized treatment regimen can be developed and, more importantly, the inappropriate surgical decision can be avoided.
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Affiliation(s)
- Changqin Jiang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- The Institute of Urology, Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China
| | - Song Zhang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- The Institute of Urology, Anhui Medical University, Hefei, China
| | - Jing Chen
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- The Institute of Urology, Anhui Medical University, Hefei, China
| | - Yangyang Zhang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- The Institute of Urology, Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China
| | - Keke Cai
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- The Institute of Urology, Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China
| | - Wei Chen
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- The Institute of Urology, Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China
| | - Yuanyuan Wu
- Department of Ultrasound, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Chaozhao Liang
- Department of Urology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
- The Institute of Urology, Anhui Medical University, Hefei, China
- Anhui Province Key Laboratory of Genitourinary Diseases, Anhui Medical University, Hefei, China
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Barba M, Cola A, Rezzan G, Costa C, Melocchi T, De Vicari D, Terzoni S, Frigerio M, Maruccia S. Flat Magnetic Stimulation for Stress Urinary Incontinence: A 3-Month Follow-Up Study. Healthcare (Basel) 2023; 11:1730. [PMID: 37372848 DOI: 10.3390/healthcare11121730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 06/05/2023] [Accepted: 06/11/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND flat magnetic stimulation is based on a stimulation produced by electromagnetic fields with a homogenous profile. Patients with stress urinary incontinence (SUI) can take advantage of this treatment. We aimed to evaluate medium-term subjective, objective, and quality-of-life outcomes in patients with stress urinary incontinence to evaluate possible maintenance schedules. METHODS a prospective evaluation through the administration of the International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF), the Incontinence Impact Questionnaire (IIQ7), and the Female Sexual Function Index (FSFI) was performed at three different time points: at the baseline (T0), at the end of treatment (T1), and at 3-month follow-up (T2). The stress test and the Patient Global Impression of Improvement questionnaire (PGI-I) defined objective and subjective outcomes, respectively. RESULTS 25 consecutive patients were enrolled. A statistically significant reduction in the IIQ7 and ICIQ-SF scores was noticed at T1 returned to levels comparable to the baseline at T2. However, objective improvement remained significant even at a 3-month follow-up. Moreover, the PGI-I scores at T1 and T2 were comparable, demonstrating stable subjective satisfaction. CONCLUSION despite a certain persistence of the objective and subjective continence improvement, the urinary-related quality of life decreases and returns to baseline values three months after the end of flat magnetic stimulation. These findings indicate that a further cycle of treatment is probably indicated after 3 months since benefits are only partially maintained after this timespan.
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Affiliation(s)
- Marta Barba
- Department of Gynecology, IRCCS San Gerardo dei Tintori, University of Milano-Bicocca, 20900 Monza, Italy
| | - Alice Cola
- Department of Gynecology, IRCCS San Gerardo dei Tintori, University of Milano-Bicocca, 20900 Monza, Italy
| | - Giorgia Rezzan
- Department of Gynecology, IRCCS San Gerardo dei Tintori, University of Milano-Bicocca, 20900 Monza, Italy
| | - Clarissa Costa
- Department of Gynecology, IRCCS San Gerardo dei Tintori, University of Milano-Bicocca, 20900 Monza, Italy
| | - Tomaso Melocchi
- Department of Gynecology, IRCCS San Gerardo dei Tintori, University of Milano-Bicocca, 20900 Monza, Italy
| | - Desirèe De Vicari
- Department of Gynecology, IRCCS San Gerardo dei Tintori, University of Milano-Bicocca, 20900 Monza, Italy
| | - Stefano Terzoni
- Department of Urology, ASST Santi Paolo e Carlo, San Paolo Hospital, 20142 Milano, Italy
| | - Matteo Frigerio
- Department of Gynecology, IRCCS San Gerardo dei Tintori, University of Milano-Bicocca, 20900 Monza, Italy
| | - Serena Maruccia
- Department of Urology, ASST Santi Paolo e Carlo, San Paolo Hospital, 20142 Milano, Italy
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Zhao B, Wen L, Liu D, Huang S. Visualized Urethral Mobility Profile During Urine Leakage in Supine and Standing Positions. ULTRASCHALL IN DER MEDIZIN (STUTTGART, GERMANY : 1980) 2023; 44:e158-e163. [PMID: 35168283 DOI: 10.1055/a-1700-2862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVES To describe the urethral course and position during urine leakage based on the visualized urethral mobility profile (UMP) and to explore the differences between supine and standing positions. METHOD This was a prospective study of 100 women with SUI and 100 control women who underwent a cough stress test (CST) with transperineal ultrasound (TPUS) in supine and standing positions. In the mid-sagittal plane, the UMP software automatically placed six equidistant points from the bladder neck (point 1) to the external urethral meatus (point 6). It determined the x and y coordinates of the points relative to the symphysis pubis. The distance between the points and symphysis pubis (dist. 1 to 6) was calculated using the formula SQRT (x2 + y2). The visualized UMP was created by reproducing the six points on a bitmap. RESULTS Valid UMP data of 78 control women and 90 women with SUI were analyzed. In the two positions, distances 1 to 6 were significantly greater in the SUI group than the continent group (all p < 0.05). During Valsalva, the distance between the mid-urethra (dist. 3 and 4) and the symphysis was significantly increased (all p < 0.001) in the SUI group. The visualized UMP showed a similar upper-urethral course in the two groups. The gap between the mid-urethra (points 3 and 4) and symphysis was wider in the SUI group. CONCLUSION The visualized UMP in supine and standing positions showed no difference in the bladder neck and upper urethral stability between incontinent and continent women, but mid-urethral stability was weaker in SUI.
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Affiliation(s)
- Baihua Zhao
- Ultrasound diagnosis, Second Xiangya Hospital, Central South University, Changsha, China
| | - Lieming Wen
- Ultrasound diagnosis, Second Xiangya Hospital, Central South University, Changsha, China
| | - Dan Liu
- Ultrasound diagnosis, Second Xiangya Hospital, Central South University, Changsha, China
| | - Shanya Huang
- Ultrasound diagnosis, Second Xiangya Hospital, Central South University, Changsha, China
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van Geelen H, Sand PK. The female urethra: urethral function throughout a woman's lifetime. Int Urogynecol J 2023; 34:1175-1186. [PMID: 36757487 DOI: 10.1007/s00192-023-05469-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 01/01/2023] [Indexed: 02/10/2023]
Abstract
INTRODUCTION AND HYPOTHESIS The objective of this narrative review is to describe changes in urethral function that occur during a woman's lifetime. Evaluation of urethral function includes measurements of urethral closure pressure, at rest and during stress, leak point pressure, and the detailed study of anatomical and histological changes of the urethral sphincteric mechanism. METHODS A literature search in MEDLINE, PubMed, and relevant journals from 1960 until 2020 was performed for articles dealing with urethral function and the impact of aging, pregnancy, and childbirth, female hormones, and menopausal transition on the urethral sphincteric mechanism. Longitudinal and cross-sectional epidemiological surveys, studies on histological changes in urethral anatomy during aging, and urodynamic data obtained at different points in a woman's lifetime, during pregnancy, after childbirth, as well as the effects of female hormones on urethral sphincter function are reviewed. Relevant studies presenting objective data are analyzed and briefly summarized. RESULTS AND CONCLUSIONS The findings lead one to conclude that a constitutional or genetic predisposition, aging, and senescence are the most prominent etiological factors in the development of urinary incontinence and other pelvic floor disorders. Vaginal childbirth dilates and may damage the compressed pelvic supportive tissues and is invariably associated with a decline in urethral sphincter function. Pregnancy, hormonal alterations, menopausal transition, weight gain, and obesity are at best of secondary influence on the pathology of lower urinary tract dysfunction. The decline of circulating estrogens during menopausal transition may play a role in the transition of fibroblasts to cellular senescence.
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Kibschull M, Nguyen TTN, Chow T, Alarab M, Lye SJ, Rogers I, Shynlova O. Differentiation of patient-specific void urine-derived human induced pluripotent stem cells to fibroblasts and skeletal muscle myocytes. Sci Rep 2023; 13:4746. [PMID: 36959367 PMCID: PMC10036466 DOI: 10.1038/s41598-023-31780-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 03/17/2023] [Indexed: 03/25/2023] Open
Abstract
Cell-based therapy is a major focus for treatment of stress urinary incontinence (SUI). However, derivation of primary cells requires tissue biopsies, which often have adverse effects on patients. A recent study used human induced pluripotent stem cells (iPSC)-derived smooth muscle myocytes for urethral sphincter regeneration in rats. Here, we establish a workflow using iPSC-derived fibroblasts and skeletal myocytes for urethral tissue regeneration: (1) Cells from voided urine of women were reprogrammed into iPSC. (2) The iPSC line U1 and hESC line H9 (control) were differentiated into fibroblasts expressing FSP1, TE7, vinculin, vimentin, αSMA, fibronectin and paxillin. (3) Myogenic differentiation of U1 and H9 was induced by small molecule CHIR99021 and confirmed by protein expression of myogenic factors PAX7, MYOD, MYOG, and MF20. Striated muscle cells enriched by FACS expressed NCAM1, TITIN, DESMIN, TNNT3. (4) Human iPSC-derived fibroblasts and myocytes were engrafted into the periurethral region of RNU rats. Injected cells were labelled with ferric nanoparticles and traced by Prussian Blue stain, human-specific nuclear protein KU80, and human anti-mitochondria antibody. This workflow allows the scalable derivation, culture, and in vivo tracing of patient-specific fibroblasts and myocytes, which can be assessed in rat SUI models to regenerate urethral damages and restore continence.
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Affiliation(s)
- M Kibschull
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, 25 Orde St, Suite 6-1017, Toronto, ON, M5T 3H7, Canada
| | - T T N Nguyen
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, 25 Orde St, Suite 6-1017, Toronto, ON, M5T 3H7, Canada
| | - T Chow
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, 25 Orde St, Suite 6-1017, Toronto, ON, M5T 3H7, Canada
- Department of Physiology, University of Toronto, Toronto, Canada
| | - M Alarab
- Department of Obstetrics and Gynecology, University of Toronto, Toronto, Canada
- Division of Urogynecology and Reconstructive Pelvic Surgery, Mount Sinai Hospital, Toronto, Canada
| | - S J Lye
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, 25 Orde St, Suite 6-1017, Toronto, ON, M5T 3H7, Canada
- Department of Physiology, University of Toronto, Toronto, Canada
- Department of Obstetrics and Gynecology, University of Toronto, Toronto, Canada
| | - I Rogers
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, 25 Orde St, Suite 6-1017, Toronto, ON, M5T 3H7, Canada
- Department of Physiology, University of Toronto, Toronto, Canada
- Department of Obstetrics and Gynecology, University of Toronto, Toronto, Canada
| | - O Shynlova
- Lunenfeld-Tanenbaum Research Institute, Sinai Health System, 25 Orde St, Suite 6-1017, Toronto, ON, M5T 3H7, Canada.
- Department of Physiology, University of Toronto, Toronto, Canada.
- Department of Obstetrics and Gynecology, University of Toronto, Toronto, Canada.
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22
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Gao L, Wang Y, Wen W, Duan Y, Li Z, Dang E, Li P, Yu L, Zhou C, Lu M, Wang G. Fractional carbon dioxide vaginal laser treatment of stress urinary incontinence: Remodeling of vaginal tissues and improving pelvic floor structures. Lasers Surg Med 2023; 55:268-277. [PMID: 36748855 DOI: 10.1002/lsm.23641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 11/22/2022] [Accepted: 01/27/2023] [Indexed: 02/08/2023]
Abstract
OBJECTIVE To demonstrate remodeling of vaginal biomechanical and physiological properties using vaginal fractional carbon dioxide (CO2 ) laser treatment of stress urinary incontinence (SUI). MATERIALS AND METHODS The study cohort included 26 patients with SUI between October 2019 and November 2020. Patients were treated with two sessions of FemTouch vaginal fractional CO2 laser with a one-month interval. Three subjective assessments were administered to all patients: female sexual function index (FSFI), vaginal health index score (VHIS), and international consultation on incontinence questionnaire-short form (ICIQ-SF). Vaginal tissue biopsies were taken from 6 patients before treatment and one-month after the final treatment. Vaginal tactile imaging (VTI) measurements, ultrasonography, and magnetic resonance imaging (MRI) scans were performed before treatment and 10-12-months after treatment in 10, 9, and 6 patients, respectively. RESULTS The average age of the cohort was 39.5 ± 12.0 years. The overall scores for FSFI, VHIS, and ICIQ-SF significantly improved in patients after each treatment sessions as compared with baseline scores. VTI showed significantly increased pressure resistance of both the anterior and posterior vaginal walls after treatment. Ultrasonography showed significant decreases in bladder neck mobility and urethrovesical angle during the Valsalva maneuver after treatment. MRI scans showed significant decreases in the length of the vaginal anterior wall after treatment. Histological examination confirmed that the laser treatment led to a thicker stratified squamous epithelium layer as compared to the baseline. CONCLUSIONS Our results demonstrated that vaginal fractional CO₂ laser treatment can restore vaginal biomechanical and physiological properties by increasing vaginal tightening and improving pelvic floor structures.
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Affiliation(s)
- Lin Gao
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yuanli Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Wei Wen
- Department of Urology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yunyan Duan
- Department of Medical Technology, Xi'an Medical University, Xi'an, China
| | - Zhaoyang Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Erle Dang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Peng Li
- Department of Radiology, The Affiliated Hospital of Qingdao Binhai University, Qingdao, China
| | - Lei Yu
- Department of Urology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Chenxi Zhou
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Meiheng Lu
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Gang Wang
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
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23
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Zhong C, Hu P, Ran S, Tang J, Xiao C, Lin Y, Zhang X, Rong Y, Liu M. Association Between Urinary Stress Incontinence and Levator Avulsion Detected by 3D Transperineal Ultrasound. ULTRASCHALL IN DER MEDIZIN (STUTTGART, GERMANY : 1980) 2023; 44:e39-e46. [PMID: 34015837 DOI: 10.1055/a-1497-1838] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
PURPOSE To determine the association between levator avulsion and urinary stress incontinence (USI) by 3/4D transperineal ultrasound. MATERIALS AND METHODS 842 patients who were admitted to our hospital from 2016 to 2019 were recruited for our study. 3D/4D transperineal ultrasound was performed. After standard interview and clinical evaluation, general conditions and levator hiatus data were collected and measured to compare with each group. The odds ratio (OR) of USI symptoms or ultrasound features with levator avulsion were calculated. RESULTS A total of 593 women were studied: 204 suffered from levator avulsion (96 cases of left-side avulsion, 80 cases of right-side avulsion and 28 cases of bilateral avulsion) and 389 women had no avulsion. The gravidity and episiotomy conditions of the avulsion groups were significantly different from the no-avulsion group. Significant differences were found in the transverse diameters and anteroposterior diameters between the levator avulsion group and the no-avulsion group, but there was no difference among the avulsion groups, regardless of whether the patient was at rest or performing the Valsalva maneuver. Interestingly, a significant difference was found in the presence of USI symptoms between the uni-avulsion group and the no-avulsion group. The odds ratio (OR) of USI symptoms in the uni-avulsion group is 2.786 (95 %CI, 1.663-4.669), but 0.939 (95 %CI, 0.276-3.199) for the bilateral avulsion and no-avulsion groups. CONCLUSION Unilateral levator avulsion may be a risk factor for urinary stress incontinence.
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Affiliation(s)
- Chunyan Zhong
- Ultrasound, Chongqing Health Center for Women and Children, Chongqing, China
| | - Pan Hu
- Gynecological pelvic floor and oncology, Chongqing Health Center for Women and Children, Chongqing, China
| | - Suzhen Ran
- Ultrasound, Chongqing Health Center for Women and Children, Chongqing, China
| | - Jing Tang
- Ultrasound, Chongqing Health Center for Women and Children, Chongqing, China
| | - Chunmei Xiao
- Ultrasound, Chongqing Health Center for Women and Children, Chongqing, China
| | - Yun Lin
- Ultrasound, Chongqing Health Center for Women and Children, Chongqing, China
| | - Xiaohang Zhang
- Ultrasound, Chongqing Health Center for Women and Children, Chongqing, China
| | - Yao Rong
- Ultrasound, Chongqing Health Center for Women and Children, Chongqing, China
| | - Mingbo Liu
- Gynecological pelvic floor and oncology, Chongqing Health Center for Women and Children, Chongqing, China
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24
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Effect of vaginal energy-based treatment on female stress urinary incontinence: a systematic review and meta-analysis of randomized controlled trials. World J Urol 2023; 41:405-411. [PMID: 36536169 DOI: 10.1007/s00345-022-04247-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Accepted: 12/05/2022] [Indexed: 12/23/2022] Open
Abstract
PURPOSE To evaluate the efficacy and safety of vaginal energy-based therapies in treating female SUI. METHODS The PubMed, EMBASE, Web of Science, and Scopus databases were searched up to September 2022 to identify RCTs comparing energy-based therapies with placebo intervention in treating female SUI. The primary outcome was International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF) score. Secondary outcomes included the 1-h pad test and cure rate. RESULTS A total of 577 patients from 6 studies were included in the meta-analysis. Energy-based therapies did not significantly improve the ICIQ-SF score at all visits (≤ 1 month: SMD, -0.39; 95% CI - 0.80 to 0.03; P = 0.07; 3 months: SMD, - 1.32; 95% CI - 4.07 to 1.43; P = 0.35; 6 months: SMD, - 0.39; 95% CI - 0.91 to 0.12; P = 0.14). The subgroup analysis showed that there was no significant improvement in ICIQ-SF score in the CO2 laser group compared to the placebo group at all visits (≤ 1 month: SMD, - 0.13; 95% CI - 0.59 to 0.34; P = 0.59; 3 months: SMD, - 1.50; 95% CI - 3.91 to 0.92; P = 0.22; 6 months: SMD, 0.13; 95% CI - 0.47 to 0.72; P = 0.67). Meta-analysis was not performed in Er: YAG laser and radiofrequency therapy due to insufficient trials. CONCLUSION Based on the limited clinical evidence, our meta-analysis showed no prior efficacy of energy-based therapy over placebo intervention. However, the results of this meta-analysis should be taken with caution due to the limited amount of available evidence and the heterogeneity among the included studies. PROSPERO REGISTRATION NUMBER CRD42022360471.
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25
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Bergström BS. Urethral failure is not the predominant cause of female stress urinary incontinence. Neurourol Urodyn 2023; 42:389-392. [PMID: 36504119 PMCID: PMC10107983 DOI: 10.1002/nau.25111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 11/24/2022] [Indexed: 12/14/2022]
Affiliation(s)
- Bo S Bergström
- Department of Obstetrics & Gynecology, Nordfjord Hospital, Nordfjordeid, Norway.,Department of Obstetrics & Gynecology, Mora Hospital, Mora, Sweden
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26
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Cheng W, English E, Horner W, Swenson CW, Chen L, Pipitone F, Ashton-Miller JA, DeLancey JOL. Hiatal failure: effects of pregnancy, delivery, and pelvic floor disorders on level III factors. Int Urogynecol J 2023; 34:327-343. [PMID: 36129480 PMCID: PMC10171831 DOI: 10.1007/s00192-022-05354-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 08/28/2022] [Indexed: 01/26/2023]
Abstract
INTRODUCTION AND HYPOTHESIS The failure of the levator hiatus (LH) and urogenital hiatus (UGH) to remain closed is not only associated with pelvic floor disorders, but also contributes to recurrence after surgical repair. Pregnancy and vaginal birth are key events affecting this closure. An understanding of normal and failed hiatal closure is necessary to understand, manage, and prevent pelvic floor disorders. METHODS This narrative review was conducted by applying the keywords "levator hiatus" OR "genital hiatus" OR "urogenital hiatus" in PubMed. Articles that reported hiatal size related to pelvic floor disorders and pregnancy were chosen. Weighted averages for hiatal size were calculated for each clinical situation. RESULTS Women with prolapse have a 22% and 30% larger LH area measured by ultrasound at rest and during Valsalva than parous women with normal support. Women with persistently enlarged UGH have 2-3 times higher postoperative failure rates after surgery for prolapse. During pregnancy, the LH area at Valsalva increases by 29% from the first to the third trimester in preparation for childbirth. The enlarged postpartum hiatus recovers over time, but does not return to nulliparous size after vaginal birth. Levator muscle injury during vaginal birth, especially forceps-assisted, is associated with increases in hiatal size; however, it only explains a portion of hiatus variation-the rest can be explained by pelvic muscle function and possibly injury to other level III structures. CONCLUSIONS Failed hiatal closure is strongly related to pelvic floor disorders. Vaginal birth and levator injury are primary factors affecting this important mechanism.
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Affiliation(s)
- Wenjin Cheng
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA.
- Beaumont Hospital Dearborn, Department of Obstetrics and Gynecology, 18101 Oakwood Blvd, Dearborn, MI, 48124, USA.
| | - Emily English
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA
- Michigan Medicine, University of Michigan Health-West, Grand Rapids, MI, USA
| | - Whitney Horner
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA
| | - Carolyn W Swenson
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA
- Division of Urogynecology and Pelvic Reconstructive, University of Utah, Salt Lake City, UT, USA
| | - Luyun Chen
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Fernanda Pipitone
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA
- Hospital das Clínicas, University of São Paulo, São Paulo, Brazil
| | - James A Ashton-Miller
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
- Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - John O L DeLancey
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI, USA
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27
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Zarrinchang P, Ashrafizaadeh M, Jamshidi N. Simulation of the female pelvic mobility and vesical pressure changes employing fluid-structure interaction method. Int Urogynecol J 2023; 34:571-580. [PMID: 36169682 DOI: 10.1007/s00192-022-05362-8] [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] [Received: 06/07/2022] [Accepted: 09/05/2022] [Indexed: 01/26/2023]
Abstract
INTRODUCTION AND HYPOTHESIS This study aims to develop a fluid-structural interaction (FSI) method to pinpoint the effects of pressure changes inside the bladder and their impact on the supporting structure and the urethra mobility. METHODS A physiological model of the nulliparous female pelvis, including the organs, supportive structures, and urine, was developed based on magnetic resonance images. Soft tissues with nonlinear hyperelastic material characteristics were modeled. The Navier-Stokes equations governing the fluid flow within the computational domain (urine) were solved. The urine and soft tissue interactions were simulated by the FSI method. The vesical pressure and its impact on the urethral mobility and supportive structures were investigated during the Valsalva maneuver. Moreover, the simulation results were validated by comparing with a urodynamic test and other research. RESULTS The results demonstrated that the vesical pressure simulated by the FSI method could predict the nonlinear behavior of the urodynamic test pressure. The urethra retropubic bladder neck and the bladder neck-pubic bone angle changed 58.92% and -55.76%, respectively. The retropubic urethral length distance changed by -48.74%. The error compared to the statistical results of other research is < 5%. CONCLUSIONS The total deformation and mobility of the urethra predicted by the FSI model were consistent with clinical observations in a subject. The urethra supports dependence on the tissues' mechanical properties, interaction between the tissues, and effect of urine fluid inside the bladder. This simulation effectively depicts the patterns of urethra mobility, which provides a better understanding of the behavior of the pelvic floor.
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Affiliation(s)
- Pouya Zarrinchang
- Mechanical Engineering group, Pardis College, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Mahmud Ashrafizaadeh
- Department of Mechanical Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
| | - Nima Jamshidi
- Department of Biomedical Engineering, Faculty of Engineering, University of Isfahan, Isfahan, Iran
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28
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El-Sayegh B, Cacciari LP, Primeau FL, Sawan M, Dumoulin C. The state of pelvic floor muscle dynamometry: A scoping review. Neurourol Urodyn 2023; 42:478-499. [PMID: 36478202 DOI: 10.1002/nau.25101] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 10/01/2022] [Accepted: 11/14/2022] [Indexed: 12/12/2022]
Abstract
AIMS To discuss the advantages and limitation of the different pelvic floor muscle (PFM) dynamometers available, both in research and industry, and to present the extent of variation between them in terms of structure, functioning, psychometric properties, and assessment procedures. METHODS We identified relevant studies from four databases (MEDLINE, Compendex, Web of Science, and Derwent Innovations Index) up to December 2020 using terms related to dynamometry and PFM. In addition, we conducted a hand search of the bibliographies of all relevant reports. Peer-reviewed papers, conference proceedings, patents and user's manuals for commercial dynamometers were included and assessed by two independent reviewers. RESULTS One hundred and one records were included and 23 PFM dynamometers from 15 research groups were identified. From these, 20 were considered as clinical dynamometers (meant for research settings) and three as personal dynamometers (developed by the industry). Overall, significant heterogeneity was found in their structure and functioning, which limits development of normative data for PFM force in women. Further research is needed to assess the psychometric properties of PFM dynamometers and to standardize assessment procedures. CONCLUSION This review points up to the heterogeneity of existing dynamometers and methods of assessing PFM function. It highlights the need to better document their design and assessment protocol methods. Additionally, this review recommends standards for new dynamometers to allow the establishment of normalized data.
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Affiliation(s)
- Batoul El-Sayegh
- Department of Electrical and Computer Engineering, Polytechnique of Montreal, Montreal, Québec, Canada.,Research Center of the Institut Universtaire de Gériatrie de Montréal, Montréal, Québec, Canada
| | - Licia P Cacciari
- Research Center of the Institut Universtaire de Gériatrie de Montréal, Montréal, Québec, Canada.,School of Rehabilitation, Université de Montréal, Montréal, Québec, Canada
| | - Francois L Primeau
- Department of Electrical and Computer Engineering, Polytechnique of Montreal, Montreal, Québec, Canada
| | - Mohamad Sawan
- School of Engineering, Westlake University and Institute of Advanced Study, Westlake Institute for Advanced Study, Hangzhou, China
| | - Chantal Dumoulin
- Research Center of the Institut Universtaire de Gériatrie de Montréal, Montréal, Québec, Canada.,School of Rehabilitation, Université de Montréal, Montréal, Québec, Canada
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29
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Yang X, Wang X, Gao Z, Li L, Lin H, Wang H, Zhou H, Tian D, Zhang Q, Shen J. The Anatomical Pathogenesis of Stress Urinary Incontinence in Women. Medicina (B Aires) 2022; 59:medicina59010005. [PMID: 36676629 PMCID: PMC9865065 DOI: 10.3390/medicina59010005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/12/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022] Open
Abstract
Stress urinary incontinence is a common disease in middle-aged and elderly women, which seriously affects the physical and mental health of the patients. For this reason, researchers have carried out a large number of studies on stress urinary incontinence. At present, it is believed that the pathogenesis of the disease is mainly due to changes related to age, childbirth, obesity, constipation and other risk factors that induce changes in the urinary control anatomy, including the anatomical factors of the urethra itself, the anatomical factors around the urethra and the anatomical factors of the pelvic nerve. The combined actions of a variety of factors lead to the occurrence of stress urinary incontinence. This review aims to summarize the anatomical pathogenesis of stress urinary incontinence from the above three perspectives.
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Affiliation(s)
- Xunguo Yang
- The First Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
- Yunnan Province Clinical Research Center for Chronic Kidney Disease, Kunming 650032, China
| | - Xingqi Wang
- The First Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
- Yunnan Province Clinical Research Center for Chronic Kidney Disease, Kunming 650032, China
| | - Zhenhua Gao
- The First Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
- Yunnan Province Clinical Research Center for Chronic Kidney Disease, Kunming 650032, China
| | - Ling Li
- The First Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
- Yunnan Province Clinical Research Center for Chronic Kidney Disease, Kunming 650032, China
| | - Han Lin
- The First Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
- Yunnan Province Clinical Research Center for Chronic Kidney Disease, Kunming 650032, China
| | - Haifeng Wang
- The First Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
- Yunnan Province Clinical Research Center for Chronic Kidney Disease, Kunming 650032, China
| | - Hang Zhou
- The First Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
- Yunnan Province Clinical Research Center for Chronic Kidney Disease, Kunming 650032, China
| | - Daoming Tian
- The First Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
- Yunnan Province Clinical Research Center for Chronic Kidney Disease, Kunming 650032, China
| | - Quan Zhang
- The First Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
- Yunnan Province Clinical Research Center for Chronic Kidney Disease, Kunming 650032, China
| | - Jihong Shen
- The First Department of Urology, The First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
- Yunnan Province Clinical Research Center for Chronic Kidney Disease, Kunming 650032, China
- Correspondence: ; Tel.: +86-135-7700-9705
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30
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DeLancey JO, Hokanson JA. Reply to: The case against urethral failure is not a critical factor in female urinary incontinence. Now what? The integral theory system. Neurourol Urodyn 2022; 41:1934-1937. [PMID: 36047393 PMCID: PMC9633378 DOI: 10.1002/nau.25036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 08/20/2022] [Indexed: 11/06/2022]
Affiliation(s)
- John O. DeLancey
- Departments of Obstetrics and Gynecology and Urology,
University of Michigan, Ann Arbor, Michigan, USA
| | - James A. Hokanson
- Department of Biomedical Engineering, Medical College of
Wisconsin, Milwaukee, Wisconsin, USA
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31
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Subtyping of common complex diseases and disorders by integrating heterogeneous data. Identifying clusters among women with lower urinary tract symptoms in the LURN study. PLoS One 2022; 17:e0268547. [PMID: 35687541 PMCID: PMC9187122 DOI: 10.1371/journal.pone.0268547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 05/03/2022] [Indexed: 01/27/2023] Open
Abstract
We present a methodology for subtyping of persons with a common clinical symptom complex by integrating heterogeneous continuous and categorical data. We illustrate it by clustering women with lower urinary tract symptoms (LUTS), who represent a heterogeneous cohort with overlapping symptoms and multifactorial etiology. Data collected in the Symptoms of Lower Urinary Tract Dysfunction Research Network (LURN), a multi-center observational study, included self-reported urinary and non-urinary symptoms, bladder diaries, and physical examination data for 545 women. Heterogeneity in these multidimensional data required thorough and non-trivial preprocessing, including scaling by controls and weighting to mitigate data redundancy, while the various data types (continuous and categorical) required novel methodology using a weighted Tanimoto indices approach. Data domains only available on a subset of the cohort were integrated using a semi-supervised clustering approach. Novel contrast criterion for determination of the optimal number of clusters in consensus clustering was introduced and compared with existing criteria. Distinctiveness of the clusters was confirmed by using multiple criteria for cluster quality, and by testing for significantly different variables in pairwise comparisons of the clusters. Cluster dynamics were explored by analyzing longitudinal data at 3- and 12-month follow-up. Five clusters of women with LUTS were identified using the developed methodology. None of the clusters could be characterized by a single symptom, but rather by a distinct combination of symptoms with various levels of severity. Targeted proteomics of serum samples demonstrated that differentially abundant proteins and affected pathways are different across the clusters. The clinical relevance of the identified clusters is discussed and compared with the current conventional approaches to the evaluation of LUTS patients. The rationale and thought process are described for the selection of procedures for data preprocessing, clustering, and cluster evaluation. Suggestions are provided for minimum reporting requirements in publications utilizing clustering methodology with multiple heterogeneous data domains.
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32
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Zhao B, Wen L, Liu D, Huang S. The Visualized Urethral Mobility Profile in Stress Urinary Incontinence Described by Four-Dimensional Transperineal Ultrasound. JOURNAL OF ULTRASOUND IN MEDICINE : OFFICIAL JOURNAL OF THE AMERICAN INSTITUTE OF ULTRASOUND IN MEDICINE 2022; 41:1439-1445. [PMID: 34515354 DOI: 10.1002/jum.15828] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 07/25/2021] [Accepted: 08/29/2021] [Indexed: 05/17/2023]
Abstract
OBJECTIVES To describe the urethral mobility during urine leaking in stress urinary incontinence (SUI) by transperineal ultrasound (TPUS) with urethral mobility profile (UMP) analysis. METHODS This was a prospective study of 380 women who had a cough stress test (CST) with TPUS. UMP software automatically placed six equidistant points from the bladder neck (Point 1) to the external urethral meatus (Point 6) and determined their x and y coordinates relative to the symphysis pubis. Urethral mobility vector of Points 1-6 (Vectors 1-6) and the distance between the six points and the symphysis (Dist. 1-6) were calculated and compared between the two groups. The visualized UMP was created by reproducing the positions of the six points at rest and on Valsalva. RESULTS Valid data of 188 women with SUI and 174 continent women were analyzed. The mean age of all 362 women was 49.3 years. Mean body mass index in the SUI group was significantly increased (23.8 vs 22.2 kg/m2 , P < .001). During CST, Vectors 1-6 and Dist. 2-6 were significantly increased (all P < .005) in the SUI group. The UMP showed the mid-urethral rotated down around the symphysis pubis. The upper urethral profile in the two groups was similar. But the gap between the mid-urethra and the symphysis was wider in the SUI group. CONCLUSIONS The visualized UMP illustrated the mid-urethral hypermobility in SUI by showing a wider gap due to the unstable connection between the mid-urethra and the symphysis pubis.
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Affiliation(s)
- Baihua Zhao
- Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lieming Wen
- Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | | | - Shanya Huang
- Second Xiangya Hospital, Central South University, Changsha, Hunan, China
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The Role of Pessaries in the Treatment of Women With Stress Urinary Incontinence: A Systematic Review and Meta-Analysis. Female Pelvic Med Reconstr Surg 2022. [PMID: 35420550 DOI: 10.1097/spv.0000000000001180.10.1097/spv.0000000000001180] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
IMPORTANCE Pessaries are an important conservative therapy for stress urinary incontinence (SUI), but few studies have comprehensively evaluated their utility. OBJECTIVE The objective of this study is to evaluate the existing evidence on the efficacy and safety of pessaries for the treatment of SUI. STUDY DESIGN We searched for the terms "stress urinary incontinence" and "pessar/y/ies/ium" in PubMed, Embase, and Cinhal on June 10, 2020. Studies that characterized subjective and/or objective data were included. Studies performed in pediatric populations, pregnancy, and use of pessaries not for SUI were excluded. Two reviewers independently screened and assessed data quality and risk of bias according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. RESULTS Ten studies, including 376 patients, were included. In terms of subjective outcomes, 76% of 72 patients reported feeling continent after pessary treatment compared with 0% of 86 patients surveyed before pessary use (P < 0.0001). Both Urinary Distress Inventory and Incontinence Impact Questionnaire scores decreased significantly by 46.7% (n = 155 baseline, n = 139 follow-up; P < 0.0001) and 67.8% (n = 139 baseline, n = 107 follow-up; P < 0.0001), respectively. Significant objective measures associated with pessary use included increased urethral closure pressure (n = 122; g = 0.56; 95% confidence interval [CI], -0.66 to 1.77; P < 0.049) and decreased pad weight (n = 129 baseline; n = 118 follow-up; g = -0.89; 95% CI, -1.986 to 0.19; P = 0.009). Adverse events significantly decreased at greater than 6 months follow-up compared with less than 6 months follow-up, including pain (31.5%, n = 29/92 vs 14.3%, n = 5/35; P = 0.0513) and discomfort (50%, n = 46/92 vs 29.3%, n = 12/41; P = 0.0268). CONCLUSIONS Based on both subjective and objective measures, pessaries are an effective conservative treatment option for SUI. This supports pessary use, though larger studies with longer-term follow-up are warranted.
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The Role of Pessaries in the Treatment of Women With Stress Urinary Incontinence: A Systematic Review and Meta-Analysis. Female Pelvic Med Reconstr Surg 2022; 28:e171-e178. [PMID: 35420550 DOI: 10.1097/spv.0000000000001180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
IMPORTANCE Pessaries are an important conservative therapy for stress urinary incontinence (SUI), but few studies have comprehensively evaluated their utility. OBJECTIVE The objective of this study is to evaluate the existing evidence on the efficacy and safety of pessaries for the treatment of SUI. STUDY DESIGN We searched for the terms "stress urinary incontinence" and "pessar/y/ies/ium" in PubMed, Embase, and Cinhal on June 10, 2020. Studies that characterized subjective and/or objective data were included. Studies performed in pediatric populations, pregnancy, and use of pessaries not for SUI were excluded. Two reviewers independently screened and assessed data quality and risk of bias according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. RESULTS Ten studies, including 376 patients, were included. In terms of subjective outcomes, 76% of 72 patients reported feeling continent after pessary treatment compared with 0% of 86 patients surveyed before pessary use (P < 0.0001). Both Urinary Distress Inventory and Incontinence Impact Questionnaire scores decreased significantly by 46.7% (n = 155 baseline, n = 139 follow-up; P < 0.0001) and 67.8% (n = 139 baseline, n = 107 follow-up; P < 0.0001), respectively. Significant objective measures associated with pessary use included increased urethral closure pressure (n = 122; g = 0.56; 95% confidence interval [CI], -0.66 to 1.77; P < 0.049) and decreased pad weight (n = 129 baseline; n = 118 follow-up; g = -0.89; 95% CI, -1.986 to 0.19; P = 0.009). Adverse events significantly decreased at greater than 6 months follow-up compared with less than 6 months follow-up, including pain (31.5%, n = 29/92 vs 14.3%, n = 5/35; P = 0.0513) and discomfort (50%, n = 46/92 vs 29.3%, n = 12/41; P = 0.0268). CONCLUSIONS Based on both subjective and objective measures, pessaries are an effective conservative treatment option for SUI. This supports pessary use, though larger studies with longer-term follow-up are warranted.
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Yuan X, Balog BM, Lin DL, Hanzlicek B, Kuang M, Yan H, Majerus SJA, Damaser MS. Brain-Derived Neurotrophic Factor Is an Important Therapeutic Factor in Mesenchymal Stem Cell Secretions for Treatment of Traumatic Peripheral Pelvic Injuries. Front Cell Neurosci 2022; 16:866094. [PMID: 35663428 PMCID: PMC9157419 DOI: 10.3389/fncel.2022.866094] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2022] [Accepted: 04/12/2022] [Indexed: 11/18/2022] Open
Abstract
Traumatic neuromuscular injury to the pudendal nerve and urethra during childbirth does not regenerate well and contributes to stress urinary incontinence in women. Mesenchymal stem cells (MSCs) can improve neuroregeneration via their secretions, or secretome, which includes brain-derived neurotrophic factor (BDNF). In this study, we investigated whether BDNF is a key factor in the secretome of MSCs for the facilitation of functional recovery following a dual simulated childbirth injury. BDNF knockdown (KD) MSCs were created using an anti-BDNF shRNA lentivirus vector. A scrambled sequence was used as a transduction control (scrambled). Cells were cultured for 24 h before media was concentrated 50x to create concentrated conditioned media (CCM) containing MSC secretome. CCM of unmanipulated MSCs was screened for high BDNF expression (high BDNF CCM). Concentrated control media (CM) was created by concentrating media not conditioned by cells. Female Sprague-Dawley rats underwent bilateral pudendal nerve crush and vaginal distension (Injury) or sham injury. One hour and 1 week after injury, sham injured rats received CM, and injured rats received CM, high BDNF CCM, KD CCM, or scrambled CCM (300 μl intraperitoneally). Three weeks after injury, rats underwent leak point pressure (LPP) and pudendal nerve sensory branch potential (PNSBP) recordings. The urethra and pudendal nerve were harvested for anatomical assessment. ANOVA followed by the Student-Newman-Keuls test determined significant differences between groups (p < 0.05). BDNF KD CCM had significantly decreased BDNF concentration compared to scrambled CCM, while the concentration in high BDNF CCM was significantly increased. LPP was significantly decreased in CM and KD CCM treated animals compared to sham injury, but not with scrambled or high BDNF CCM. PNSBP firing rate showed a significant decrease with CM treatment compared to sham injury. Neuromuscular junctions in the urethral sphincter in KD CCM, scrambled CCM, and high BDNF CCM were healthier than CM treated rats. While anatomical and nerve function tests demonstrate regeneration of the pudendal nerve with any CCM treatment, LPP results suggest it takes longer to recover continence with reduced BDNF in CCM. BDNF in MSC CCM is an important factor for the acceleration of recovery from a dual nerve and muscle injury.
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Affiliation(s)
- Xiaoyi Yuan
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
- Advanced Platform Technology Center, Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, United States
- Department of Urology, Tongji Hospital, Huazhong University of Science and Technology, Wuhan, China
| | - Brian M. Balog
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
- Advanced Platform Technology Center, Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, United States
- Department of Biology, University of Akron, Akron, OH, United States
| | - Dan Li Lin
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
- Advanced Platform Technology Center, Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, United States
| | - Brett Hanzlicek
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
- Advanced Platform Technology Center, Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, United States
| | - Mei Kuang
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Hao Yan
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
- Department of Urology, Xuanwu Hospital, Capital Medical University, Beijing, China
| | - Steve J. A. Majerus
- Advanced Platform Technology Center, Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, United States
| | - Margot S. Damaser
- Department of Biomedical Engineering, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
- Advanced Platform Technology Center, Louis Stokes Cleveland Veterans Affairs Medical Center, Cleveland, OH, United States
- Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, OH, United States
- *Correspondence: Margot S. Damaser
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Letter to the editor: Stress urinary incontinence is caused predominantly by urethral support failure. Int Urogynecol J 2022; 33:1357-1358. [PMID: 35298683 PMCID: PMC9119913 DOI: 10.1007/s00192-022-05162-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 03/04/2022] [Indexed: 10/18/2022]
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Geynisman-Tan J, Mou T, Mueller MG, Kenton K. How Does the Urethra Respond to Bladder Filling in Continent and Incontinent Women? Female Pelvic Med Reconstr Surg 2022; 28:321-324. [PMID: 34864751 PMCID: PMC9169549 DOI: 10.1097/spv.0000000000001125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The objective of this study was to describe mean urethral pressure (MUP) during filling cystometry in continent and incontinent women. METHODS Incontinent women were recruited from a urogynecology clinic if they answered "sometimes" or "always" to 1 of the items on the Medical, Epidemiologic, and Social Aspects of Aging questionnaire. Participants were categorized by Medical, Epidemiologic, and Social Aspects of Aging scores into stress urinary incontinence (SUI) or urgency urinary incontinence (UUI) groups. Continent women were recruited from the community. Multichannel urodynamics were performed using microtip catheters. Urethral pressure profiles were obtained with an empty bladder and at 100-mL increments during filling. Data were analyzed in SPSS. Continuous variables were compared with independent t test or analysis of variance, categorical variables with the χ2 test, and multivariable comparisons were made with linear regression. RESULTS Eighty-six women (30 continent, 56 incontinent: 37 SUI, 19 UUI) with a mean ± SD age of 48 ± 15 years and a body mass index (BMI) of 31 ± 9 participated. Sixty-nine percent were White, 43% were postmenopausal, and 80% were parous. Continent women were younger (P < 0.001) and had a lower BMI (P = 0.004). Mean cystometric capacity was higher in women with SUI and continent women than in women with UUI (430 ± 142, 448 ± 101, and 332 ± 160, P = 0.04). Continent women had higher MUP at baseline when controlling for age, BMI, and parity (84 ± 35 cmH2O vs 62 ± 28 cmH2O; aR2 = 0.2, P = 0.02) compared with incontinent women. During filling, MUP in continent women was 20-30 cmH2O higher at all bladder volumes than incontinent women. Mean urethral pressure increased significantly between baseline and 300 mL in continent women (P < 0.005) and women with SUI (P = 0.04), but not in women with UUI (P = 0.48). CONCLUSIONS Continent women have greater baseline MUP and greater increases in MUP during bladder filling than incontinent women.
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Affiliation(s)
- Julia Geynisman-Tan
- From the Division of Female Pelvic Medicine and Reconstructive Surgery, Department of Obstetrics and Gynecology, Northwestern University, Chicago, IL
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Ruffolo AF, Braga A, Torella M, Frigerio M, Cimmino C, De Rosa A, Sorice P, Castronovo F, Salvatore S, Serati M. Vaginal Laser Therapy for Female Stress Urinary Incontinence: New Solutions for a Well-Known Issue-A Concise Review. MEDICINA (KAUNAS, LITHUANIA) 2022; 58:512. [PMID: 35454351 PMCID: PMC9028572 DOI: 10.3390/medicina58040512] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 03/25/2022] [Accepted: 04/02/2022] [Indexed: 11/21/2022]
Abstract
Background and Objectives: Insufficient connective urethra and bladder support related to childbirth and menopausal estrogen decrease leads to stress urinary incontinence (SUI). The aim of this review is to narratively report the efficacy and safety of new mini-invasive solutions for SUI treatment as laser energy devices, in particular, the microablative fractional carbon dioxide laser and the non-ablative Erbium-YAG laser. Materials and Methods: For this narrative review, a search of literature from PubMed and EMBASE was performed to evaluate the relevant studies and was limited to English language articles, published from January 2015 to February 2022. Results: A significant subjective improvement, assessed by the International Consultation on Incontinence Questionnaire-Short Form (ICIQ-UI-SF) was reported at the 6-month follow up, with a cure rate ranged from 21% to 38%. A reduction of effect was evidenced between 6 and 24-36 months. Additionally, the 1-h pad weight test evidence a significant objective improvement at the 2-6-month follow up. Conclusions: SUI after vaginal laser therapy resulted statistically improved in almost all studies at short-term follow up, resulting a safe and feasible option in mild SUI. However, cure rates were low, longer-term data actually lacks and the high heterogeneity of methods limits the general recommendations. Larger RCTs evaluating long-term effects are required.
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Affiliation(s)
- Alessandro Ferdinando Ruffolo
- Obstetrics and Gynecology Unit, IRCCS San Raffaele Hospital, Vita-Salute University, 20132 Milan, Italy; (A.F.R.); (S.S.)
| | - Andrea Braga
- Department of Obstetrics and Gynecology, EOC-Beata Vergine Hospital, 6850 Mendrisio, Switzerland; (A.B.); (F.C.)
| | - Marco Torella
- Department of Obstetrics and Gynecology, Second Faculty, 80100 Naples, Italy;
| | | | - Chiara Cimmino
- Department of Obstetrics and Gynecology, Del Ponte Hospital, University of Insubria, 21100 Varese, Italy; (C.C.); (A.D.R.); (P.S.)
| | - Andrea De Rosa
- Department of Obstetrics and Gynecology, Del Ponte Hospital, University of Insubria, 21100 Varese, Italy; (C.C.); (A.D.R.); (P.S.)
| | - Paola Sorice
- Department of Obstetrics and Gynecology, Del Ponte Hospital, University of Insubria, 21100 Varese, Italy; (C.C.); (A.D.R.); (P.S.)
| | - Fabiana Castronovo
- Department of Obstetrics and Gynecology, EOC-Beata Vergine Hospital, 6850 Mendrisio, Switzerland; (A.B.); (F.C.)
| | - Stefano Salvatore
- Obstetrics and Gynecology Unit, IRCCS San Raffaele Hospital, Vita-Salute University, 20132 Milan, Italy; (A.F.R.); (S.S.)
| | - Maurizio Serati
- Department of Obstetrics and Gynecology, Del Ponte Hospital, University of Insubria, 21100 Varese, Italy; (C.C.); (A.D.R.); (P.S.)
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Illiano E, Trama F, Li Marzi V, Mancini V, Carrieri G, Ruvolo CC, Califano G, Fabi C, Brancorsini S, Costantini E. Translabial ultrasound: a non-invasive technique for assessing "technical errors" after TOT failure. Int Urogynecol J 2022; 33:1023-1030. [PMID: 34191103 PMCID: PMC9021136 DOI: 10.1007/s00192-021-04897-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2021] [Accepted: 05/24/2021] [Indexed: 11/30/2022]
Abstract
INTRODUCTION AND HYPOTHESIS The aims of this study were to evaluate by transperineal ultrasound if there were ultrasound-detectable changes over time in the dynamic behavior of the sling in patients who underwent transobturator tape (TOT), and to evaluate if dynamic translabial ultrasonography recognized factors that may be associated with failed surgery. METHODS This was a single-center prospective study. We included women who underwent "out-in" TOT for stress urinary incontinence (SUI). A dynamic translabial ultrasound was performed 6 months post-surgery and again at the last visit. The objective cure for SUI was defined as the absence of urine leakage during the stress test. We evaluated the bladder neck mobility at rest and during Valsalva; the position of the mesh along the urethra; the concordance of urethral movement with the sling during Valsalva; the symmetry of the lateral arms of the sling during straining; and the presence or absence of bladder neck funneling. RESULTS From December 2012 to February 2016, 80 consecutive patients were included. Six months after surgery, incontinent women compared with continent women had the sling in a proximal or distal position, that moved discordantly with the urethra (p < 0.0001), with asymmetry arm and bladder neck funneling (p < 0.0001). Continent patients had a significant improvement of urethrocele grade both at rest (p = 0.036) and during Valsalva (p = 0.045). CONCLUSIONS Technical and positioning errors can lead to the failure of anti-incontinence surgical treatment. Translabial ultrasound allows the correct positioning of the sling to be evaluated and any errors that need to be analyzed in order to then solve the failure.
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Affiliation(s)
- Ester Illiano
- Department of Surgical and Biomedical Science, Andrological and Urogynecological Clinic, Santa Maria Terni Hospital, University of Perugia, Viale Tristano di Joannuccio, 05100, City Terni, TR, Italy
| | - Francesco Trama
- Department of Surgical and Biomedical Science, Andrological and Urogynecological Clinic, Santa Maria Terni Hospital, University of Perugia, Viale Tristano di Joannuccio, 05100, City Terni, TR, Italy.
| | - Vincenzo Li Marzi
- Urology Clinic, Careggi Hospital, University of Florence, Florence, Italy
| | - Vito Mancini
- Department of Urology and Renal Transplantation, University of Foggia, Foggia, Italy
| | - Giuseppe Carrieri
- Department of Urology and Renal Transplantation, University of Foggia, Foggia, Italy
| | - Claudia Collà Ruvolo
- Department of Neurosciences, Reproductive Sciences and Odontostomatology, University of Naples Federico II, Naples, Italy
| | - Gianluigi Califano
- Department of Neurosciences, Reproductive Sciences and Odontostomatology, University of Naples Federico II, Naples, Italy
| | - Consuelo Fabi
- Department of Experimental Medicine, Section of Terni, University of Perugia, Perugia, Italy
| | - Stefano Brancorsini
- Department of Experimental Medicine, Section of Terni, University of Perugia, Perugia, Italy
| | - Elisabetta Costantini
- Department of Surgical and Biomedical Science, Andrological and Urogynecological Clinic, Santa Maria Terni Hospital, University of Perugia, Viale Tristano di Joannuccio, 05100, City Terni, TR, Italy
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Hokanson JA, DeLancey JOL. Urethral failure is a critical factor in female urinary incontinence. Now what? Neurourol Urodyn 2022; 41:532-538. [PMID: 35032361 PMCID: PMC8892071 DOI: 10.1002/nau.24875] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 11/16/2021] [Accepted: 12/24/2021] [Indexed: 02/03/2023]
Affiliation(s)
- James A Hokanson
- Department of Biomedical Engineering, Medical College of Wisconsin, Milwaukee, WI 53226,Corresponding Author , Biomedical Engineering, TBRC, 8701 W Watertown Plank Rd, Milwaukee, WI 53226, 414-955-7648
| | - John O. L. DeLancey
- Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI 48109, USA
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Baumfeld Y, Wei Q, Chitnis P, Marroquin J, Shobeiri SA, Alshiek J. Does aging affect the elastic properties of the bladder and the urethra in nulliparous women: An ultrasound shear-wave elastography study. Neurourol Urodyn 2022; 41:797-805. [PMID: 35077600 DOI: 10.1002/nau.24877] [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: 10/11/2021] [Revised: 12/22/2021] [Accepted: 12/23/2021] [Indexed: 12/31/2022]
Abstract
OBJECTIVE To investigate how aging and menopausal status in absence of pregnancy and childbirth affect the elasticity of the bladder and urethra. STUDY DESIGN A single-center prospective observational study including nulliparous 10 pre- and 12 postmenopausal women. Data collection included baseline characteristics, physical examination data, questionnaire scores, PDFI and the Pelvic Floor Impact Questionnaire, and pelvic floor sonographic measurements as well as elastography measurements. The shear wave elastography (SWE) of tissue was measured using Kilopascal (kPa). The elastography measurements were taken over the rhabdosphincter, the suburethra smooth muscle, and the trigonal areas. RESULTS A total of 22 nulliparous subjects were enrolled in the study. The cohort's mean age was 43.5 years, the mean body mass index (BMI) was 26.8, and 86% were of Caucasian ethnicity. The postmenopausal group was older and with higher BMI (p < 0.001 and p = 0.05). They also had higher scores in all the questionnaires (p < 0.05 for all) and did not demonstrate prolapse in any compartments. The SWE results for the whole group were 35.2 kPa in the rhabdosphincter measuring point, 40.2 kPa in the sub-urethra point, and 20.6 kPa in the trigone point. Comparing the premenopause and postmenopause groups, we found lower measurements in the rhabdosphincter area and equivocal measurements for the suburethral zone. No statistically significant differences were found between the groups CONCLUSIONS: The elastic properties of the different bladder components and the urethra change with age and menopause. Using elastic properties of the tissues, we can further explore both stress urinary incontinence and overactive bladder.
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Affiliation(s)
- Yael Baumfeld
- Department of Obstetrics and Gynecology, INOVA Women's Hospital Inova Health System, Falls Church, Virginia, USA
| | - Qi Wei
- Department of Bioengineering, George Mason University, Fairfax, Virginia, USA
| | - Paraq Chitnis
- Department of Bioengineering, George Mason University, Fairfax, Virginia, USA
| | - Joanna Marroquin
- Department of Obstetrics and Gynecology, INOVA Women's Hospital Inova Health System, Falls Church, Virginia, USA
| | - S Abbas Shobeiri
- Department of Obstetrics and Gynecology, INOVA Women's Hospital Inova Health System, Falls Church, Virginia, USA.,Department of Bioengineering, George Mason University, Fairfax, Virginia, USA
| | - Jonia Alshiek
- Department of Obstetrics and Gynecology, INOVA Women's Hospital Inova Health System, Falls Church, Virginia, USA.,Department of Bioengineering, George Mason University, Fairfax, Virginia, USA
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Bergström BS. Stress urinary incontinence is caused predominantly by urethral support failure. Int Urogynecol J 2022; 33:523-530. [PMID: 35064789 PMCID: PMC8885533 DOI: 10.1007/s00192-021-05024-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 10/28/2021] [Indexed: 12/26/2022]
Abstract
Whales are mammals that can dive to depths of > 1000 m without the high water pressure pushing open their mouth or anus. The same is true for the female urethra. The meatus externus and internus are seals that cannot be pushed open by high water pressures. Recent evidence suggests that the female meatus internus is pushed open when the bladder pressure exceeds the urethral pressure. For a relaxed detrusor, this opening is not possible for at least three reasons: the law of elastic collision, Pascal’s law of hydrostatics and the Hagen-Poiseuille law. The three laws do not support that urethral function failure is the predominant cause of stress urinary incontinence (SUI); however, they do support that urethral support failure is. Influential urogynecologists claim the opposite. TVT surgery, according to the integral theory of SUI (IT), has high failure rates because it does not principally prevent the urethra from hanging on a less mobile bladder neck. In the case of a long urethra, the tape is set too distally, and in hypomobile SUI, the use of a tension-free suburethral tape is unwarranted/ineffective, because the proximal urethra is not elevated above its resting position. A successful operation corrects urethral support failure and not urethral function failure.
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Affiliation(s)
- Bo S Bergström
- Department of Obstetrics & Gynecology Mora Hospital, 792 51, Mora, Sweden.
- Overlege at Nordfjord Hospital, N-6771, Nordfjordeid, Norway.
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Hong CX, Sheyn DD, Sammarco AG, DeLancey JO. Geometric analysis of the urethral-vaginal interface curvature in women with and without stress urinary incontinence: A pilot magnetic resonance imaging study. Neurourol Urodyn 2022; 41:340-347. [PMID: 34806771 PMCID: PMC8738156 DOI: 10.1002/nau.24826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/29/2021] [Accepted: 10/16/2021] [Indexed: 01/03/2023]
Abstract
AIMS To evaluate differences in the curvature of the urethral-vaginal interface in women with and without stress urinary incontinence (SUI) using geometric morphometric analysis techniques. METHODS We conducted a pilot case-control study using magnetic resonance imaging (MRI) scans of 18 women with and without SUI. The urethral-vaginal interface at the level of the mid-urethra was fitted with a second-order polynomial regression. The chord length and chord-to-vertex length of the resulting parabolic curve were used to calculate the arc length and radius of a circular arc fitted to the interface curvature. Demographic characteristics and Pelvic Organ Prolapse Quantification (POP-Q) parameters were collected. Subjects were stratified by those with and without SUI, as well as by those with and without anterior wall prolapse beyond 2 cm proximal to the hymen (Aa > -2 cm). RESULTS The radius of the urethral-vaginal interface curvature was not found to be different between subjects with and without SUI (8.8 vs. 9.2 mm, p = 0.53); however, this value was smaller in subjects with Aa > -2 (8.4 vs. 11.9 mm, p = 0.03). The chord length, chord-to-vertex length, and arc length comprising the urethral-vaginal interface curvature were similar between subjects with and without SUI, and between subjects with and without Aa > -2 cm (p > 0.05 for all). CONCLUSIONS In this pilot study population, the radius of the urethral-vaginal interface curvature at the mid-urethra was smaller among women with anterior vaginal wall prolapse beyond 2 cm proximal to the hymen. A difference in the urethral-vaginal interface curvature among women with and without SUI was not found.
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Affiliation(s)
- Christopher X. Hong
- Pennsylvania Hospital, Philadelphia, PA, USA,Pelvic Anatomy Group - Imaging, Society of Gynecologic Surgeons, East Dundee, IL, USA,University of Michigan, Ann Arbor, MI, USA
| | - David D. Sheyn
- Pelvic Anatomy Group - Imaging, Society of Gynecologic Surgeons, East Dundee, IL, USA,University Hospitals Cleveland Medical Center, Cleveland, OH, USA
| | - Anne G. Sammarco
- Pelvic Anatomy Group - Imaging, Society of Gynecologic Surgeons, East Dundee, IL, USA,University Hospitals Cleveland Medical Center, Cleveland, OH, USA,Rush University Medical Center, Chicago, IL, USA
| | - John O. DeLancey
- Pelvic Anatomy Group - Imaging, Society of Gynecologic Surgeons, East Dundee, IL, USA,University of Michigan, Ann Arbor, MI, USA
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Pipitone F, Sadeghi Z, DeLancey JO. Urethral function and failure: A review of current knowledge of urethral closure mechanisms, how they vary, and how they are affected by life events. Neurourol Urodyn 2021; 40:1869-1879. [PMID: 34488242 PMCID: PMC8556259 DOI: 10.1002/nau.24760] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 06/15/2021] [Accepted: 07/18/2021] [Indexed: 12/26/2022]
Abstract
INTRODUCTION A critical appraisal of the literature regarding female urethral function and dysfunction is needed in light of recent evidence showing the urethra's role in causing stress and urge urinary incontinence. METHODS An evidence assessment was conducted using selected articles from the literature that contained mechanistic data on factors affecting urethral function and failure. RESULTS Maximal urethral closure pressure (MUCP) is 40% lower in stress urinary incontinence (SUI) than normal controls. Evidence from five women shows relatively equal contributions to MUCP from striated/smooth muscle, vascular-plexus, connective tissue. MUCP varies twofold in individuals of similar age and declines 15% per decade even in nulliparous women. Age explains 57% of the variance in MUCP. This parallels with striated/smooth muscle loss and reduced nerve density. Factors influencing pressure variation minute-to-minute and decade-to-decade are poorly understood. Connective tissue changes have not been investigated. MUCP in de novo SUI persisting 9-months postpartum is 25% less than in age and parity-matched controls. Longitudinal studies do not show significant changes in urethral function after vaginal birth suggesting that changes in urethral support from birth may unmask pre-existing sphincter weakness and precipitate SUI. Mechanisms of interaction between support injury, pre-existing urethral weakness, and neuropathy are unclear. CONCLUSION Urethral failure is the predominant cause of SUI and a contributing factor for UUI; potentially explaining why mixed symptoms predominate in epidemiological studies. Age-related striated muscle loss and differences between women of similar age are prominent features of poor urethral closure. Yet, connective tissue changes, vasculature function, and complex interactions among factors are poorly understood.
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Affiliation(s)
- Fernanda Pipitone
- Pelvic Floor Research Group, University of Michigan, Ann Arbor, MI, USA
- Hospital das Clínicas da FMUSP, University of São Paulo, São Paulo, Brazil
| | - Zhina Sadeghi
- Division of Neurourology and Pelvic Reconstructive Surgery, Department of Urology University of Michigan, Ann Arbor, MI
| | - John O.L. DeLancey
- Pelvic Floor Research Group, University of Michigan, Ann Arbor, MI, USA
- Department of Obstetrics and Gynecology, Michigan Medicine, Ann Arbor, MI, USA
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Turkoglu A, Coskun ADE, Arinkan SA, Vural F. The role of transperineal ultrasound in the evaluation of stress urinary incontinence cases. Int Braz J Urol 2021; 48:70-77. [PMID: 34528775 PMCID: PMC8691236 DOI: 10.1590/s1677-5538.ibju.2020.1100] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 07/21/2021] [Indexed: 11/22/2022] Open
Abstract
Purpose: To evaluate the use of transperineal ultrasonography while diagnosing stress urinary incontinence (SUI) by comparing the urethral angle (α), posterior urethrovesical angle (β), and bladder neck descent (BND) during rest and Valsalva maneuver in continent women and women with SUI. Materials and methods: This prospective observational study was conducted with 50 women with SUI and 50 continent women. Transperineal ultrasonography was performed at rest and during Valsalva maneuver. Q-tip test was performed. Results: During the Valsalva maneuver, both α and β angles were significantly higher in women with SUI (p <0.001). The difference between Valsalva and rest measurements of α and β angles (R α, R β) were also significantly higher in women with SUI (p <0.001). The cut-off point determined for the R α in the diagnosis of stress incontinence was 16° (80% sensitivity, 98% specificity). A statistically significant strong correlation was found between Q-tip test angle and R α value (p=0.000; r=0.890). Q-tip VAS pain scores were significantly higher than ultrasonography VAS pain scores (p <0.001). In relation to the bladder neck descent comparison between the two groups showed that BND was significantly higher in SUI group (p <0.001). The cut-off point determined for BND in the diagnosis of SUI was >11mm (90% sensitivity, 98% specificity). Conclusion: Transperineal ultrasonography is a practical, reliable, non-invasive and comfortable method for evaluation of SUI. It has the advantage of dynamic evaluation during the Valsalva maneuver. Rotation angles and BND have high sensitivity and specificity for detection of SUI. The change in α angle with Valsalva (Rα) can be used as an alternative to Q-tip test.
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Affiliation(s)
- Alper Turkoglu
- Department of Obstetrics and Gynecology, Basaksehir Cam and Sakura City Hospital, Istanbul, Turke
| | - Ayse Deniz Erturk Coskun
- Department of Obstetrics and Gynecology, University of Health Sciences, Haydarpasa Numune Training and Research Hospital, Istanbul, Turkey
| | - Sevcan Arzu Arinkan
- Department of Obstetrics and Gynecology, University of Health Sciences, Haydarpasa Numune Training and Research Hospital, Istanbul, Turkey
| | - Fisun Vural
- Department of Obstetrics and Gynecology, University of Health Sciences, Haydarpasa Numune Training and Research Hospital, Istanbul, Turkey
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McLean L, Hickling D. Reply to Letter to the Editor by Dr. Petros about "The pathophysiology of stress urinary incontinence: a systematic review and meta-analysis". Int Urogynecol J 2021; 32:2883-2884. [PMID: 34379164 DOI: 10.1007/s00192-021-04949-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 07/20/2021] [Indexed: 11/28/2022]
Affiliation(s)
- Linda McLean
- Faculty of Health Sciences, University of Ottawa, Ottawa, ON, Canada.
| | - Duane Hickling
- Division of Urology, Faculty of Medicine, University of Ottawa, Ottawa, Canada
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Yoshio Y, Hayashi T, Tokiwa S, Sawada Y, Okada Y, Achila B, Kitagawa Y, Nomura J. Predictive urodynamic factors for de novo stress urinary incontinence after laparoscopic sacrocolpopexy for pelvic organ prolapse. Low Urin Tract Symptoms 2021; 13:498-504. [PMID: 34263528 DOI: 10.1111/luts.12401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 06/11/2021] [Accepted: 06/27/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Laparoscopic sacrocolpopexy is often performed to treat pelvic organ prolapse. Preoperative stress urinary incontinence (SUI) can improve after laparoscopic sacrocolpopexy. In contrast, some patients without incontinence preoperatively develop SUI after pelvic organ prolapse repair (ie, de novo SUI). This study aimed to identify the preoperative predictive factors of de novo SUI after laparoscopic sacrocolpopexy. METHODS A total of 858 patients underwent laparoscopic sacrocolpopexy between January 2013 and November 2017 at Kameda Medical Center. Urodynamic studies were performed pre- and postoperatively on 75 patients. This retrospective study included 43 of 75 patients who did not have SUI preoperatively. We assessed urethral function according to functional profile length and maximum urethral closure pressure. We evaluated voiding function in terms of maximum flow rate, detrusor pressure at maximum flow rate, and postvoid residual volume. Furthermore, each factor was compared between de novo SUI-positive and SUI-negative groups. RESULTS After laparoscopic sacrocolpopexy, 30 (69.8%) patients presented with SUI. The preoperative maximum urethral closure pressure was significantly lower in the de novo SUI-positive group (36.0 cmH2 O) than in the de novo SUI-negative group (50.5 cmH2 O, P = .020). More patients with maximum urethral closure pressure <40 cmH2 O had de novo SUI than patients with maximum urethral closure pressure ≥40 cmH2 O (P = .004). There were no significant differences between preoperative maximum urethral closure pressure and postoperative maximum urethral closure pressure in either group. CONCLUSIONS Low preoperative maximum urethral closure pressure, particularly maximum urethral closure pressure <40 cmH2 O, is a predictor of de novo SUI after laparoscopic sacrocolpopexy.
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Affiliation(s)
- Yuko Yoshio
- Urogynecology Center, Kameda Medical Center, Chiba, Japan.,Department of Nephro-Urologic Surgery, Mie University, Tsu-City, Japan
| | | | - Shino Tokiwa
- Urogynecology Center, Kameda Medical Center, Chiba, Japan
| | - Yugo Sawada
- Urogynecology Center, Kameda Medical Center, Chiba, Japan
| | - Yoshiyuki Okada
- Urogynecology Center, Kameda Medical Center, Chiba, Japan.,Department of Female Pelvic Health Center, Showa University Northern Yokohama Hospital, Yokohama, Japan
| | - Bobby Achila
- Urogynecology Center, Kameda Medical Center, Chiba, Japan.,Department of Obstetrics and Gynecology, Kenyatta University Teaching Referral and Research Hospital, Nairobi, Kenya
| | | | - Jimmy Nomura
- Urogynecology Center, Kameda Medical Center, Chiba, Japan
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Zhao B, Wen L, Liu D, Huang S. Urethral configuration and mobility during urine leaking described using real-time transperineal ultrasonography. Ultrasonography 2021; 41:171-176. [PMID: 34399041 PMCID: PMC8696134 DOI: 10.14366/usg.21058] [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: 03/10/2021] [Accepted: 06/15/2021] [Indexed: 11/05/2022] Open
Abstract
Purpose The aim of this study was to explore differences in the bladder neck configuration and segmental urethral mobility during the cough stress test (CST) in the supine and standing positions between women with and without stress urinary incontinence (SUI). Methods This prospective study included 100 control women and 100 incontinent women who had a CST with transperineal ultrasonography. The bladder neck configuration and urethral mobility were described in terms of urethral funneling, bladder neck descent (BND), retrovesical angle (RVA), urethral rotation angle, and urethral mobility at six points along the urethra (vectors 1 to 6). The two groups’ ultrasound findings in the two positions were compared. Results Valid data were collected from 78 control women and 90 women with SUI. Significant differences were found in age and body mass index between the two groups (P<0.01). Urethral funneling was found in 33 women (36.7%) with SUI and five continent women (6.4%) and altered little in the standing position. In the standing position, the mean RVA significantly increased (160° to 179°, P<0.001) in the SUI group; The mean vector of points 1 to 6 significantly increased in the control group (all P<0.001). The RVA, BND, and vectors 1 to 4 were significantly greater (all P≤0.01) in women with SUI than without, in both positions. Conclusion Urethral funneling was an intrinsic anatomical characteristic relative to SUI. Weak upper- and mid-urethral support and an unstable connection between the trigone and proximal urethra were the anatomical signs of SUI.
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Affiliation(s)
- Baihua Zhao
- Department of Ultrasound Diagnosis, Second Xiangya Hospital, Central South University, China
| | - Lieming Wen
- Department of Ultrasound Diagnosis, Second Xiangya Hospital, Central South University, China
| | - Dan Liu
- Department of Ultrasound Diagnosis, Second Xiangya Hospital, Central South University, China
| | - Shanya Huang
- Department of Ultrasound Diagnosis, Second Xiangya Hospital, Central South University, China
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Geynisman-Tan J, Mou T, Mueller MG, Kenton K. Neuromuscular urethral function and urethral urodynamic parameters between urgency and stress incontinence do not differ. Int Urogynecol J 2021; 33:871-876. [PMID: 33818646 DOI: 10.1007/s00192-021-04773-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 03/16/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION AND HYPOTHESIS To describe and compare urethral neuromuscular function using concentric needle electromyography (CNEMG) and urodynamic (UDS) parameters between stress incontinent (SUI) and urge incontinent (UUI) women. METHODS Incontinent women were recruited from a urogynecology clinic if they answered "sometimes" or "always" to one of the items on the Medical, Epidemiologic, and Social Aspects of Aging questionnaire. Participants were categorized by MESA scores into stress (SUI) or urgency (UUI) incontinence groups. Participants underwent CNEMG of the striated urethral sphincter at three insertion sites using Medtronic multiple motor unit action potential analysis. UDS was performed with Laborie microtip catheters: urethral pressure profiles were obtained at baseline and 300 ml. Data were analyzed in SPSS. Continuous variables were compared with independent t-test or Mann-Whitney U, categorical variables with chi-square test. A logistic regression was performed to control for variables found to be significant on univariate analysis. RESULTS Fifty-six women (37 SUI, 19 UUI) with mean ± SD age of 53 ± 13 years participated. At baseline, patients with SUI were younger, more likely to be premenopausal and had lower BMIs. There were no differences in urethral EMG or UDS parameters between UUI and SUI women except lower maximum cystometric capacity in women with UUI. When controlling for age, BMI and MCC on logistic regression, there remained no differences between SUI and UUI groups on EMG or UDS parameters. CONCLUSIONS Women with UUI and DO show similar evidence of denervation-reinnervation injury to the striated urethral sphincter muscle as women with SUI.
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Affiliation(s)
- Julia Geynisman-Tan
- Northwestern University, 250 E Superior Street, Suite 5-2370, Chicago, IL, 60611, USA.
| | - Tsung Mou
- Northwestern University, 250 E Superior Street, Suite 5-2370, Chicago, IL, 60611, USA
| | - Margaret G Mueller
- Northwestern University, 250 E Superior Street, Suite 5-2370, Chicago, IL, 60611, USA
| | - Kimberly Kenton
- Northwestern University, 250 E Superior Street, Suite 5-2370, Chicago, IL, 60611, USA
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Abe-Takahashi Y, Kitta T, Ouchi M, Chiba H, Higuchi M, Togo M, Shinohara N. Examination of pelvic floor muscle elasticity in patients with interstitial cystitis/bladder pain syndrome using real-time tissue elastography. Int Urogynecol J 2021; 33:619-626. [PMID: 33740121 DOI: 10.1007/s00192-021-04761-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 03/03/2021] [Indexed: 11/26/2022]
Abstract
INTRODUCTION AND HYPOTHESIS The aim was to compare pelvic floor muscle (PFM) elasticity between interstitial cystitis/bladder pain syndrome (IC/BPS) patients and healthy women using real-time tissue elastography. METHODS The subjects were 17 IC/BPS female patients (IC/BPS group; age 34-84 years), 10 healthy middle-aged women (middle-aged group; 50-80 years), and 17 healthy young adult women (young group; 23-37 years). The target sites of elastography were the striated urethral sphincter (SUS) and adipose tissue as the reference site; muscle elasticity was calculated as the strain ratio (SR) of the SUS to the reference site. Evaluations were performed at rest and during PFM contraction. The IC/BPS group completed lower urinary tract symptom and pain questionnaires. SUS SR was compared among the three groups. SUS SR at rest and during PFM contraction was compared among the three groups with the t-test and the Wilcoxon test. Associations between questionnaire results and SUS SR were evaluated by correlation analysis. RESULTS There was no significant difference in age between the IC/BPS and middle-aged groups, but the young group was significantly younger than the other groups (p < 0.001). SUS SR at rest was significantly higher in the IC/BPS group than in the middle-aged (p = 0.014) and young groups (p = 0.002). Furthermore, in the IC/BPS group, there was no significant difference in SUS SR between at rest and during PFM contraction. SUS SR was not significantly correlated with questionnaire results for lower urinary tract symptoms. CONCLUSIONS SUS SR at rest was significantly higher in the IC/BPS group than in the young and middle-aged groups.
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Affiliation(s)
- Yui Abe-Takahashi
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
- Department of Physical Therapy, Faculty of Health Sciences, Hokkaido University of Science, Sapporo, Japan
| | - Takeya Kitta
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan.
| | - Mifuka Ouchi
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
- Department of Physical Therapy, School of Rehabilitation Sciences, Health Sciences University of Hokkaido, Tobetsu, Japan
| | - Hiroki Chiba
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
| | - Madoka Higuchi
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
| | - Mio Togo
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
| | - Nobuo Shinohara
- Department of Renal and Genitourinary Surgery, Graduate School of Medicine, Hokkaido University, Sapporo, 060-8638, Japan
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