Effect of stress urinary incontinence on vaginal microbial communities.

BACKGROUND: Postpartum women often experience stress urinary incontinence (SUI) and vaginal microbial dysbiosis, which seriously affect women's physical and mental health. Understanding the relationship between SUI and vaginal microbiota composition may help to prevent vaginal diseases, but research on the potential association between these conditions is limited. RESULTS: This study employed 16S rRNA gene sequencing to explore the association between SUI and vaginal dysbiosis. In terms of the vaginal microbiota, both species richness and evenness were significantly higher in the SUI group. Additionally, the results of NMDS and species composition indicated that there were differences in the composition of the vaginal microbiota between the two groups. Specifically, compared to postpartum women without SUI (Non-SUI), the relative abundance of bacteria associated with bacterial dysbiosis, such as Streptococcus, Prevotella, Dialister, and Veillonella, showed an increase, while the relative abundance of Lactobacillus decreased in SUI patients. Furthermore, the vaginal microbial co-occurrence network of SUI patients displayed higher connectivity, complexity, and clustering. CONCLUSION: The study highlights the role of Lactobacillus in maintaining vaginal microbial homeostasis. It found a correlation between SUI and vaginal microbiota, indicating an increased risk of vaginal dysbiosis. The findings could enhance our understanding of the relationship between SUI and vaginal dysbiosis in postpartum women, providing valuable insights for preventing bacterial vaginal diseases and improving women's health.

Serious complications and recurrences after retropubic vs transobturator midurethral sling procedures for 2682 patients in the VIGI-MESH register.

BACKGROUND: Midurethral slings are the gold standard for treating stress urinary incontinence, but their complications may raise concerns. Complications may differ by the approach used to place them. OBJECTIVE: This study aimed to compare serious complications and reoperations for recurrence after midurethral sling procedures when using the retropubic vs the transobturator route for female stress urinary incontinence. STUDY DESIGN: This analysis was of patients included in the French, multicenter VIGI-MESH register since February 2017 who received a midurethral sling for female stress urinary incontinence either by the retropubic or the transobturator route and excluded patients with single-incision slings. Follow-up continued until October 2021. Serious complications (Clavien-Dindo classification ≥ grade III) attributable to the midurethral sling and reoperations for recurrence were compared using Cox proportional hazard models including any associated surgery (hysterectomy or prolapse) and a frailty term to consider the center effect. Baseline differences were balanced by propensity score weighting. Analyses using the propensity score and Cox models were adjusted for baseline differences, center effect, and associated surgery. RESULTS: A total of 1830 participants received a retropubic sling and 852 received a transobturator sling in 27 French centers that were placed by 167 surgeons. The cumulative 2-year estimate of serious complications was 5.8% (95% confidence interval, 4.8-7.0) in the retropubic group and 2.9% (95% confidence interval, 1.9-4.3) in the transobturator group, that is, after adjustment, half of the retropubic group was affected (adjusted hazard ratio, 0.41; 95% confidence interval, 0.3-0.6). The cumulative 2-year estimate of reoperation for recurrence of stress urinary incontinence was 2.7% (95% confidence interval, 2.0-3.6) in the retropubic group and 2.8% (95% confidence interval, 1.7-4.2) in the transobturator group with risk for revision for recurrence being higher in the transobturator group after adjustment (adjusted hazard ratio, 1.9; 95% confidence interval, 1.2-2.9); this surplus risk disappeared after exclusion of the patients with a previous surgery for stress urinary incontinence. CONCLUSION: The transobturator route for midurethral sling placement is associated with a lower risk for serious complications but a higher risk for surgical reoperation for recurrence than the retropubic route. Despite the large number of surgeons involved, these risks were low. The data are therefore reassuring.

The effect of subsequent pregnancy and childbirth on stress urinary incontinence recurrence following midurethral sling procedure: a meta-analysis.

OBJECTIVE: This study aimed to assess the risk of stress urinary incontinence recurrence and reoperation after a midurethral sling procedure in women with subsequent childbirth and to assess the effect of delivery mode on this risk. DATA SOURCES: An electronic database search was performed using MEDLINE with the OvidSP interface and PubMed, Embase, Web of Science, and the Cochrane Library up to September 20, 2023. STUDY ELIGIBILITY CRITERIA: This study included experimental and nonexperimental studies, composed of randomized controlled and observational (case-control, cohort, and cross-sectional) studies assessing the risk factors for stress urinary incontinence recurrence and reoperation after childbirth in women who had previously undergone a midurethral sling procedure for stress urinary incontinence. METHODS: Analysis was performed using RevMan (version 5.3; Cochrane Collaboration, Oxford, United Kingdom). Quantitative synthesis was used if the included studies were sufficient in numbers and homogeneity. The overall certainty of the evidence was assessed using criteria recommended by the Grading of Recommendations Assessment, Development, and Evaluation Working Group. RESULTS: A total of 2001 studies were identified, of which 6 were eligible for analysis, composed of 381 patients who had at least 1 childbirth after a midurethral sling procedure (study group) and 860 patients who underwent a midurethral sling without having a subsequent childbirth (control group). All included studies were observational, the patients' mean age at the time of the midurethral sling procedure ranged from 34 to 36 years, and the mean time from midurethral sling procedure to delivery ranged from 21 to 31 months. No difference in stress urinary incontinence recurrence (relative risk, 0.1.02; 95% confidence interval, 0.78-1.33) or reoperation (relative risk, 1.37; 95% confidence interval, 0.87-2.17) was found between the study and control groups. The average follow-up time among the included studies of this comparison was 9.8 years (range, 2-18). Furthermore, the mode of delivery (vaginal vs cesarean) did not seem to affect the risk of stress urinary incontinence recurrence. CONCLUSION: Subsequent pregnancy and childbirth did not increase the risk of stress urinary incontinence recurrence or reoperation after a midurethral sling procedure.

Adjustable transobturator male system (ATOMS) for stress urinary incontinence: the evidence is mounting.

OBJECTIVES: To evaluate the New Zealand clinical experience with the adjustable transobturator male system (ATOMS), a novel continence device in the management of all degrees of stress urinary incontinence (SUI), focusing on efficacy and safety outcomes. PATIENTS AND METHODS: A retrospective review of all ATOMS devices placed between May 2015 and November 2020 was conducted. Severity of SUI was assessed (pad usage) before and after surgery. SUI was defined as mild (1-<3 pads/day), moderate (≥3-5 pads/day) or severe (>5 pads/day). The primary outcome measures considered were the overall success rate (improvement in pad use) and the dry rate (with dry defined as either no or 1 safety pad/day). The number of outpatient adjustments and total filling volumes were also documented in each case. Additionally, we documented incidence and severity of device complications and an analysis of treatment failures. RESULTS: A total of 140 patients were reviewed, with the most common indication for ATOMS placement being SUI after radical prostatectomy (82.8%). Of the patients included, 53 (37.9%) had previous radiotherapy, with 26 (18.6%) patients having had a previous continence procedure performed. No intraoperative complications were noted. The median preoperative pad usage was 4 pads/day. After a median follow-up of 11 months, median postoperative pad usage reduced to 1 pad/day. In our cohort, 116 patients (82.9%) reported an improvement in their pad usage and were considered successful with 107 (76.4%) patients reporting themselves to be dry. Complications within the first 90-days after surgery occurred in 20 (14.3%) of patients. CONCLUSION: Treatment of SUI with the ATOMS is safe and effective. The option of long-term, minimally invasive adjustment to respond to patient needs is a significant advantage.

Neurological sphincter deficiency: is there a place for artificial urinary sphincter?

PURPOSE: Neurogenic stress urinary incontinence (N-SUI) is a condition with serious impact on the quality of life. There are several treatment modalities of which the artificial urinary sphincter (AUS) stands out as the most suitable technique for addressing sphincter insufficiency. In this article, the purpose is to describe practical considerations, outcomes, and complications of the artificial urinary sphincter in neurological sphincter deficiency in both males and females. METHODS: A narrative review of the current literature. RESULTS: The outcomes of AUS are reasonably good in patients with NLUTD, the surgical technique is discussed as well as the limitations and special considerations in this complex and heterogeneous patient population. CONCLUSION: The available evidence suggests that its efficacy and functional durability may be lower in patients with neurogenic lower urinary tract dysfunction (NLUTD) compared to those without neurological deficits. However, studies have shown that AUS can still provide effective and safe continence outcomes in both male and female patients, with long-term device survival rates ranging from several years to over a decade.

Effect of Dietary Choline Consumption on the Development of Urinary Urgency Incontinence in a Longitudinal Cohort of Women.

INTRODUCTION AND HYPOTHESIS: The objective of this study was to determine whether differences in the cumulative dietary intake of choline, is associated with the risk of developing urge urinary incontinence (UUI). METHODS: This was an analysis within the Nurses' Health Study (NHS) I and II. The main exposure was the cumulative daily intake for each choline-containing compound obtained from a detailed daily food frequency questionnaire. The primary outcome was UUI, defined as urine loss with a sudden feeling of bladder fullness or when a toilet is inaccessible, occurring >1/month. Cox proportional hazards regression models were used to calculate multivariate-adjusted relative risks and 95% confidence intervals (CIs) for the association between total choline and choline derivatives and risk of UUI. Fixed effects meta-analyses of results from NHSI and NHSII were performed for postmenopausal women only to obtain a pooled estimate of the impact of choline consumption on UUI. RESULTS: There were 33,273 participants in NHSI and 38,732 in NHSII who met all the criteria for inclusion in the analysis. The incidence of UUI was 9.41% (n=3,139) in NHSI and 4.25% (n=1,646) in NHSII. After adjusting for confounders choline was not found to be associated with UUI in postmenopausal women. However, in premenopausal women, relative to the lowest quartile, the highest quartile of consumption of total choline (aRR = 0.79, 95% CI: 0.64-0.99), free choline (aRR = 0.74, 95% CI: 0.58-0.94), and phosphocholine (aRR = 0.77, 95% CI: 0.61-0.96) were associated with a reduced risk of UUI. CONCLUSIONS: Increased dietary choline consumption was associated with a reduced risk of UUI among premenopausal women.

Evaluation of pelvic structural abnormalities in primiparous women with stress urinary incontinence.

INTRODUCTION AND HYPOTHESIS: The objective was to evaluate the morphological characteristics of pelvic floor structure specific to de novo stress urinary incontinence (SUI) in primiparous women using three-dimensional (3D) reconstruction fusion technology based on static MRI combined with dynamic MRI. METHODS: Eighty-one primiparous women after the first vaginal delivery were studied, 40 with SUI and 41 without SUI. 3D reconstruction models based on static MRI were used to describe the anatomical abnormalities of pelvic floor tissues. Dynamic MRI was used to describe segmental activities of the urethra and vagina. The relationship between the morphometry and postpartum SUI was evaluated by logistic regression analysis and receiver operator characteristic curve. RESULTS: The differences in the distance from the bladder neck to the pubic symphysis (BSD), the angle between the posterior wall of the urethra and the anterior wall of the vagina, the width of the distal region of the vagina, urethral length, urethral compression muscle volume (CUV), and pubovisceral muscle volume, puborectal muscle volume, were measured, and except for the extremity of the anterior urethral wall, the total displacements (TDs) of the other sites between the two groups were statistically significant (p < 0.05). Logistic regression analysis showed that the BSD decreased, the CUV decreased, the TDs of the first site and the eighth site increment correlated significantly with postpartum SUI occurrence (p < 0.05). CONCLUSIONS: 3D reconstruction fusion technology provides an important support for a precise assessment of the pelvic floor dysfunction. The BSD, CUV, and iliococcygeus muscle volume have certain values in predicting de novo SUI after first vaginal birth.

The acute effects of running on pelvic floor morphology and function in runners with and without running-induced stress urinary incontinence.

INTRODUCTION AND HYPOTHESIS: The aim of this study was to examine the impact of a single running session on pelvic floor morphology and function in female runners, and to compare those with and without running-induced stress urinary incontinence (RI-SUI). METHODS: This cross-sectional, observational study involved two groups: female runners who regularly experienced RI-SUI (n = 19) and runners who did not (n = 20). Pelvic floor muscle (PFM) properties were assessed using intravaginal dynamometry during maximal voluntary contractions (MVC) and during passive tissue elongation. The morphology of the pelvic floor was assessed at rest, during MVC and during maximal Valsalva maneuver (MVM) using 2D and 3D transperineal ultrasound imaging before and after a running protocol. Mixed-effects ANOVA models were used to compare all outcomes between groups and within-groups, including the interaction between group and time. Effect sizes were calculated. RESULTS: No changes in PFM function assessed using intravaginal dynamometry were observed in either group after the run. Significant and large within-group differences were observed on ultrasound imaging. Specifically, the area and antero-posterior diameter of the levator hiatus were larger after the run, the bladder neck height was lower after the run, and the levator plate length was longer after the run (p ≤ 0.05). At the peak MVM and MVC, the bladder neck height was lower after the run than before the run (p ≤ 0.05). No between-group differences were observed for any outcomes. CONCLUSIONS: Running appears to cause transient strain of the passive tissues of the female pelvic floor in runners both with and without RI-SUI, whereas no concurrent changes are observed in PFM contractile function.

Impact of childbirth on pelvic floor dysfunction in women who have undergone previous pelvic floor reconstructive surgery: systematic review and meta-analysis.

INTRODUCTION AND HYPOTHESIS: The aim of the study was to perform a systematic review and meta-analysis of the impact of pregnancy and childbirth (vaginal delivery [VD]) or cesarean section (CS) on the recurrence of pelvic floor disorders in women who had previously undergone pelvic floor reconstructive surgery for pelvic organ prolapse (POP) or stress urinary incontinence (SUI), to facilitate future evidence-based counseling. METHODS: PubMed, Cochrane, Embase, BJOG, Scopus, etc. were screened, from 1990 to date. Inclusion criteria included cohort studies, case-control studies, case series, and case reports that reported on the primary outcome measure of the review. Exclusion criteria included studies on surgical procedures whose outcomes are unlikely to be impacted by pregnancy and childbirth or are obsolete. Meta-analysis was performed using Review Manager 5.3. RESULTS: Seven papers on midurethral slings (MUS; 181 women in both VD and CS groups respectively) and three papers on different hysteropexy techniques (47 and 29 women in the VD and CS groups respectively), were included in the meta-analysis. No difference was seen between the two groups regarding the recurrence of SUI in women who had previously undergone MUS surgery (OR: 1.18 [0.66, 2.09]; Z = 0.56; p = 0.58) or the recurrence of POP following hysteropexy using various apical suspension procedures (OR: 1.81 [0.04, 80.65]; Z = 0.31; p = 0.76). There are insufficient data to support meta-analyses for individual MUS sub-types or hysteropexy procedures. CONCLUSION: Current literature does not demonstrate a protective effect of CS in preventing recurrent SUI in women who had undergone MUS surgery for SUI. When hysteropexy is considered irrespective of the apical suspension procedure employed, the incidence of recurrent POP appears similar after CS and VD.

Midurethral Sling Mesh Exposure Confers a High Risk of Persistent Stress Urinary Incontinence.

INTRODUCTION AND HYPOTHESIS: The objective was to investigate the relationship between mesh exposure and persistent stress urinary incontinence (SUI) post-midurethral sling (MUS) surgery. METHODS: Extensive data collection including patient demographics, obstetric history, existing medical conditions, previous surgeries, and surgical outcomes, encompassing both perioperative and postoperative complications. RESULTS: Out of 456 patients who underwent the MUS procedure within the specified period, the persistence of SUI was noted in 6.4% of cases. Mesh exposure was observed in 8.8% of these cases. Notably, 25% of patients with mesh exposure suffered from persistent SUI, in stark contrast to 4.6% of those without mesh exposure (p < 0.0001). Further, multivariate analysis indicated that patients with mesh exposure had an approximately 6.5-fold increased likelihood (95% CI: 2.71-15.44) of experiencing persistent SUI compared with those without mesh exposure. CONCLUSIONS: Mesh exposure is a significant independent risk factor for persistent SUI post-MUS surgery. Patients with mesh exposure are about 6.5 times more prone to persistent SUI than those without. Although mesh exposure is typically managed with expectant measures, vaginal estrogen or mesh excision, current evidence does not support surgical revision of MUS affected by mesh exposure or additional incontinence procedures during mesh excision.

Association Between Added Sugar Intake and Urinary Incontinence in Females: A Cross-sectional Population-based Study.

INTRODUCTION AND HYPOTHESIS: Urinary incontinence (UI) is a widespread issue in women that severely impacts quality of life. The addition of sugar is associated with multiple adverse effects on health. This study examined the potential association between added sugar intake and UI. METHODS: Adult females from the National Health and Nutrition Examination Survey database (2005-2018) were included in this study. The primary outcomes were the prevalence of stress urinary incontinence (SUI), urge urinary incontinence (UUI), and mixed urinary incontinence (MUI). Weighted logistic regression, stratified logistic regression, restricted cubic spline regression, and sensitivity analyses were utilized to determine whether added sugar was associated with UI after multivariate adjustment. RESULTS: A total of 14,927 participants met the inclusion criteria. The results revealed a heightened prevalence of SUI, UUI, and MUI in the fourth quartile of added sugar energy percentage (OR = 1.304, 95% confidence interval [CI] = 1.105-1.539; OR = 1.464, 95% CI = 1.248-1.717; OR = 1.657, 95% CI = 1.329-2.065 respectively). The effect was more pronounced in young women and the subgroup analyses did not reveal any noteworthy interaction effects. According to the sensitivity analyses, the results for SUI and the MUI were consistent with those of the primary analyses. CONCLUSIONS: The excessive intake of added sugar among women may increase their risk of SUI and MUI. Our study highlights the negative effects of added sugar on female genitourinary health and highlights the need for universal access to healthy diets.

Surgical Approach to Urethral Diverticulum and Urethrovaginal Fistula With Mesh Erosion.

INTRODUCTION AND HYPOTHESIS: This video illustrates a rare surgical case involving a urethral diverticulum, urethrovaginal fistula, and mesh erosion. METHODS: We present a 58-year-old patient attending a tertiary care center with a suspected urethrovaginal fistula. Her concerns included stress urinary incontinence (SUI), recurrent urinary tract infection, and vaginal pain. The surgical history was notable for the placement of two different mesh slings during the same procedure to treat SUI. Preoperative evaluation and findings are illustrated in detail. The video uses a high-definition surgical camera to emphasize the initial intraoperative evaluation with localization of the fistula and diverticulum. We then demonstrate the approach to the dissection with the goal of ensuring complete resection of the diverticulum, fistula, and mesh, while preserving healthy tissue for subsequent closure. The utilization of unique and specialized tools for each portion of the procedure is also illustrated. A layered vaginal closure, including a Martius flap, is created to prevent recurrence. RESULTS: The surgery was accomplished without complications. CONCLUSIONS: To our knowledge, concomitant findings of a urethral diverticulum, urethrovaginal fistula, and mesh erosion are unique in the literature. We postulate that this triad could have resulted from the mesh burden in this particular patient.

Changes in Stress Urinary Incontinence Symptoms after Pelvic Organ Prolapse Surgery: a Nationwide Cohort Study (FINPOP).

INTRODUCTION AND HYPOTHESIS: Various strategies are employed to manage stress urinary incontinence (SUI) during pelvic organ prolapse (POP) surgery. This study was aimed at facilitating shared decision-making by evaluating SUI symptom changes, staged SUI procedures, and their prognostic factors following POP surgery without concomitant SUI intervention. METHODS: We analyzed 2,677 POP surgeries from a population-based observational cohort, excluding patients with prior SUI surgery. The outcome measures were subjective SUI utilizing the Pelvic Floor Distress Inventory-20 questionnaire and number of subsequent SUI procedures. Multivariable linear models were applied to identify predictors of persistent SUI, procedures for persistent SUI, and de novo SUI. The primary assessment occurred at the 2-year follow-up. RESULTS: At baseline, 50% (1,329 out of 2,677) experienced SUI; 35% (354 out of 1,005) resolved, an additional 14% (140 out 1,005) improved, and 5.1% (67 out of 1,308) underwent a procedure for persistent SUI. De novo SUI symptoms developed in 20% (218 out of 1,087), with 3.2% (35 out of 1,087) reporting bothersome symptoms; 0.8% (11 out of 1,347) underwent a procedure for de novo SUI. High baseline symptom severity increased the risk of persistent SUI (adjusted odds ratio [aOR] 2.04, 95% confidence interval [CI] 1.65-2.53), whereas advanced preoperative apical prolapse decreased the risk (aOR 0.89, 95% CI 0.85-0.93). De novo SUI was more common with advancing age (aOR 1.03, 95% CI 1.01-1.05), baseline urgency urinary incontinence (aOR 1.21, 95% CI 1.06-1.38), and after transvaginal mesh surgery (aOR 1.93, 95% CI 1.24-3.00). It was not dependent on the compartment or preoperative degree of prolapse. CONCLUSIONS: In a pragmatic setting, POP surgery results in a low rate of subsequent SUI procedures.

Risk Factors of Pelvic Floor Disorders Among Women in Rural Nepal: A Case-Control Study.

INTRODUCTION AND HYPOTHESIS: Risk factors for pelvic floor disorders (PFDs) are not well understood in lower resource settings. The objective of this study is to determine the risk factors associated with stress urinary incontinence (SUI), urge urinary incontinence (UUI), and pelvic organ prolapse (POP) among women of reproductive age in rural Nepal. METHODS: This is a case-control study nested within a community-based cross-sectional survey of parous women of reproductive age with PFDs in the Sarlahi District of Nepal. The presence of PFDs was confirmed by clinical assessment. Detailed sociodemographic information and histories were captured. RESULTS: We examined 406 women; the mean (SD, range) age was 32.7 (8.5, 16-49) years, mean BMI (SD) was 19.7 (3.3) kg/m2, and median (range) number of pregnancies was 4 (1-11). Two hundred and three women (50.0%) had either SUI or UUI, 85 (17.8%) had both SUI and UUI, and 71 (17.5%) had POP at or beyond the hymen. After controlling for other variables significant on bivariate analysis, age (adjusted odds ratio [aOR] 1.06 [95% CI 1.03-1.09]), illiteracy (aOR 2.24 [95% CI 1.04-4.80]), and presence of upper gastrointestinal issues (aOR 3.30, [95% CI 1.77-6.16]) were independently associated with SUI/UUI. Age (aOR 1.05 [95% CI 1.02-1.09]), bispinous diameter (aOR 2.88 ([95% CI 1.11-7.47]), and subpubic angle (aOR 2.78 [95% CI 1.55-5.03]) were independently associated with POP. CONCLUSION: Risk factors for PFDs in a homogenous community of parous women of reproductive age in rural Nepal are similar to those found in parous women in higher income countries.

Morphological examination of pelvic floor muscles in a rat model of vaginal delivery.

OBJECTIVE: This study investigated morphological changes in the composition of the pelvic floor muscles, degree of atrophy, and urethral function in a rat of simulated birth trauma induced by vaginal distension (VD) model. METHODS: Female Sprague-Dawley rats were classified into four groups: a sham group, and 1, 2, and 4 weeks post-VD (1 W, 2 W, and 4 W, respectively) groups. We measured the amplitude of urethral response to electrical stimulation (A-URE) to evaluate urethral function. After measuring the muscle wet weight of the pubococcygeus (Pcm) and iliococcygeus (Icm) muscles, histochemical staining was used to classify muscle fibers into Types I, IIa, and IIb, and the occupancy and cross-sectional area of each muscle fiber were determined. RESULTS: There were 24 Sprague-Dawley rats used. A-URE was significantly lower in the 1 W group versus the other groups. Muscle wet weight was significantly lower in the VD groups versus the sham group for Pcm. The cross-sectional area of Type I Pcm and Icm was significantly lower in the VD groups versus the sham group. Type I muscle fiber composition in Pcm was significantly lower in the VD groups versus the sham groupand lowest in the 2 W group. Type I muscle fiber composition in Icm was significantly lower in the 2 and 4 W groups versus the sham group. CONCLUSION: Muscle atrophy and changes in muscle composition in the pelvic floor muscles were observed even after improvements in urethral function. These results may provide insight into the pathogenesis of stress urinary incontinence after VD.

Prevalence of stress urinary incontinence and urge urinary incontinence in multiples sclerosis patients: a systematic review and meta-analysis.

Urinary incontinence (UI), encompassing stress urinary incontinence (SUI) and urge urinary incontinence (UUI), is a prevalent and debilitating condition in patients with multiple sclerosis (MS), profoundly impacting their quality of life. This systematic review and meta-analysis aimed to elucidate the worldwide prevalence rates of SUI and UUI among MS patients. This study was conducted by examining observational studies published between 2000 and 2023. An exhaustive literature search was conducted across databases such as PubMed, MEDLINE, Web of Science, Scopus, ProQuest, and Google Scholar. The Meta-prop method facilitated pooled prevalence estimation of UUI and SUI, while Egger tests assessed publication bias. In total, 27 studies with 15,052 participants were included in the meta-analysis. The findings revealed a high random effect pooled prevalence of UUI at 41.02% (95% Confidence Interval [CI]: 30.57-51.89; I2 = 99%, p < 0.001) and SUI at 25.67% (95% CI: 19.30-32.58%; I2 = 94.9%, P < 0.001). Additionally, the pooled prevalence of mixed urinary incontinence (MUI) was reported at 18.81% (95% CI: 7.55-33.48; I2:95.44%, p < 0.001). The high heterogeneity observed suggests variable prevalence across populations and highlights the intricate nature of UI in MS. These findings underscore the critical need for dedicated supportive, therapeutic, and rehabilitative interventions to manage this common complaint in MS patients effectively.

The causal effect of reproductive factors on pelvic floor dysfunction: a Mendelian randomization study.

BACKGROUND: Pelvic floor dysfunction (PFD) is an extremely widespread urogynecologic disorder, the prevalence of which increases with aging. PFD has severely affected women's quality of life and has been called a social cancer. While previous studies have identified risk factors such as vaginal delivery and obesity for PFD, other reproductive factors, including age at menarche (AAMA), have been largely overlooked. Therefore, we used a Mendelian randomization (MR) study for the first time to investigate the potential causal relationship between reproductive factors and PFD. METHODS: We obtained summary statistics from genome-wide association studies (GWAS) for female genital prolapse (FGP), stress urinary incontinence (SUI), and five reproductive factors. Two-sample Mendelian randomization analysis (TSMR) was performed to explore the causal associations between these factors. The causal effects of reproductive factors on FGP and SUI were primarily estimated using the standard inverse variance weighting (IVW) method, with additional complementary and sensitivity analyses conducted using multiple approaches. A multivariate Mendelian randomization (MVMR) study was also conducted to adjust for pleiotropic effects and possible sources of selection bias and to identify independent exposure factors. RESULTS: Our findings revealed that advanced age at first sexual intercourse (AFS) and age at first birth (AFB) exhibited negative causal effects on both FGP and SUI. AAMA showed negative causal effects solely on FGP, while age at last live birth (ALB) and age at menopause (AAMO) did not demonstrate any causal effect on either FGP or SUI. And the MVMR results showed that AFB and AFS had independent negative causal effects on FGP and SUI, respectively. CONCLUSIONS: This study, for the first time, investigates the causal relationship between reproductive factors and PFD. The results suggested a causal relationship between some reproductive factors, such as AFB and AFS, and PFD, but there were significant differences between FGPand SUI. Therefore, future studies should explore the underlying mechanisms and develop preventive measures for reproductive factors to reduce the disease burden of PFD.

Incidence and risk factors of stress urinary incontinence after laparoscopic hysterectomy.

OBJECTIVE: To observe the long-term effects of total hysterectomy on urinary function, evaluate the effects of preoperative nutritional status, urinary occult infection, and surgical factors on the induction of postoperative stress urinary incontinence (SUI), and explore the incidence and risk factors of SUI. STUDY DESIGN: From January 2017 to December 2017, 164 patients with benign non-prolapsing diseases who underwent a laparoscopic total hysterectomy in the First People's Hospital of Taicang were selected as the analysis objects. The International Incontinence Standard Questionnaire for Female Lower Urinary Tract Symptoms (ICIQ-FLUTS) and Pelvic Floor Impact Questionnaire-short version 20 (PFDI-20) were used for telephone follow-up to subjectively assess the urinary function of patients, collect their medical records, and statistically analyze the number of postoperative SUI cases. Logistic multivariate analysis was used to analyze the influencing factors of postoperative female SUI, presented as adjusted odds ratios with 95% confidence intervals. RESULTS: Only 97 out of 164 patients completed the ICIQ-FLUTS and PFDI-20 questionnaires. Among these participants, 28 patients (28.86%) were diagnosed with SUI (study group), while 69 patients (71.13%) were classified as women without SUI (control group). The age, menopause, parity ≥ 2 times, Body mass index (BMI) ≥ 28 kg/m2, neonatal weight ≥ 4000 g, history of chronic cough, preoperative hemoglobin ≤ 100 g/L, preoperative urine bacteria ≥ 100u/L, preoperative uterine volume ≥ 90 cm3, intraoperative blood loss, and operation time of the study group were compared with those of the control group. The differences were statistically significant (P < 0.05). Further Logistic multivariate analysis showed that menopause, preoperative hemoglobin ≤ 100 g/L, preoperative urine bacteria ≥ 100u/L, uterine volume ≥ 90 cm3, history of chronic cough, BMI ≥ 28 kg/m2 were risk factors for postoperative SUI in patients undergoing hysterectomy (P < 0.05). CONCLUSIONS: Hysterectomy for benign non-prolapse diseases has a long-term potential impact on the urinary system of patients, and the risk of postoperative SUI increases. The main risk factors of SUI are parity, menopausal status, obesity, preoperative nutritional status, and occult infection of the urinary system.

Risk factors for postpartum stress urinary incontinence: a prospective study.

PURPOSE: Postpartum stress urinary incontinence (SUI) is a common occurrence in women, and it has a profound effect on women's health and quality of life. This study aimed to investigate the risk factors for postpartum SUI and the relative importance of each factor, including pelvic floor ultrasound measurement data and clinical data. METHOD: Pregnant women who delivered in our hospital from March 2021 to January 2022 were selected as the study population. The clinical and anatomical Data from women with SUI and those without SUI were collected and analyzed. The clinical and anatomical risk factors associated with postpartum SUI were identified using univariate and multivariate analyses. RESULTS: A total of 255 participants were recruited. Logistic regression analysis indicated that age (OR:1.215, 95% CI:1.097-1.346, P < 0.001), vaginal delivery (OR:3.05, 95% CI:1.328-7.016, P < 0.009), parity (OR:3.059, 95% CI:1.506-6.216, P < 0.002), bladder neck descent (OR:4.159, 95% CI: 2.010-8.605, P < 0.001), the angle of the internal urethral orifice funnel (OR:1.133, 95% CI:1.091-1.176, P < 0.001) were important independent risk factors for postpartum SUI (all P < 0.05). The AUC was 0.883 (95% CI: 0.839-0.926) in the model. CONCLUSIONS: Age, vaginal delivery, parity, bladder neck descent and the angle of the internal urethral orifice funnel are independent risk factors for postpartum SUI. To prevent the occurrence of postpartum SUI, high-risk factors of postpartum SUI should be identified as early as possible during pregnancy and after delivery, and postpartum pelvic floor rehabilitation training should be promoted.

Urinary phenols and parabens exposure in relation to urinary incontinence in the US population.

BACKGROUND: Our study aimed to investigate the impact of urinary concentrations of personal care products (PCPs)-related phenols (PNs) and parabens (PBs), including Triclosan (TCS), Bisphenol A (BPA), Benzophenone-3 (BP-3), Butylparaben (BPB), Ethylparaben (EPB), Methylparaben (MPB), and Propylparaben (PPB), on urinary incontinence (UI) occurrence. METHOD: We conducted a cross-sectional analysis using data from the National Health and Nutrition Examination Survey (NHANES) spanning the years 2007 to 2016. Regression analysis was employed to investigate the relationship between exposure to PCPs-related substances, various levels of exposure, and UI within both the general population and the female demographic. Additionally, the Bayesian Kernel Machine Regression (BKMR) model was used to assess the effects of mixtures on UI. RESULTS: Our analysis comprised 7,690 participants who self-reported their diagnosis. Among them, 12.80% experienced stress urinary incontinence (SUI), 11.80% reported urge urinary incontinence (UUI), and 10.22% exhibited mixed urinary incontinence (MUI). In our fully adjusted multivariable models, BP-3 exposure exhibited a positive association with SUI (OR 1.07, 95% CI 1.02-1.14, p = 0.045). BPA exposure correlated with an increased risk of UUI (OR 1.21, 95% CI 1.01-1.44, p = 0.046) and MUI (OR 1.26, 95% CI 1.02-1.54, p = 0.029). TCS exposure displayed a negative correlation with the incidence of MUI (OR 0.87, 95% CI 0.79-0.97, p = 0.009). No significant links were observed between parabens and urinary incontinence. Notably, among the female population, our investigation revealed that BPA exposure heightened the risk of MUI (OR 1.28, 95% CI 1.01-1.63, p = 0.043). Participants in the highest tertile of BP-3 exposure demonstrated elevated likelihoods of SUI and MUI compared to those in the lowest tertile. In the BKMR analysis, negative trends were observed between the mixture and the risks of UUI and MUI when the mixture ranged from the 25th to the 40th and 35th to the 40th percentiles or above, respectively. Additionally, a positive trend was identified between the mixture and MUI when it was in the 40th to 55th percentile. CONCLUSION: In conclusion, our findings suggest that exposure to BPA, TCS, and BP-3 may contribute to the development of urinary incontinence.