Female urinary incontinence, from pregnancy to menopause: a review of epidemiological and pathophysiological findings

Reproductive history of parous women and urinary incontinence in midlife: A National Birth Cohort follow-up study

OBJECTIVE

To investigate how reproductive history was associated with urinary incontinence in midlife.

DESIGN

A follow-up study.

SETTING

Denmark.

POPULATION

A total of 39 977 mothers who participated in the Maternal Follow up (2013-2014) in the Danish National Birth Cohort. National registries provided their reproductive history.

METHODS

How parity, mode of birth and obstetric tears associated with urinary incontinence were estimated with adjusted odds ratios (OR) and 95% CI using logistic regression.

MAIN OUTCOME MEASURES

Self-reported urinary incontinence including subtypes stress, urge and mixed urinary incontinence.

RESULTS

At an average age of 44 years, the prevalence of any urinary incontinence was 32% (21% stress, 2% urge, and 8% mixed urinary incontinence). Women with two births more often had urinary incontinence than women with one birth (OR 1.20, 95% CI 1.10-1.31). Compared with women with only spontaneous births, a history of only caesarean sections was associated with much lower odds of urinary incontinence (OR 0.39, 95% CI 0.35-0.42) and a history of instrumental births with slightly lower odds (OR 0.92, 95% CI 0.86-0.98). Compared with no tear/first-degree tear as the largest tear, episiotomy was associated with less urinary incontinence (OR 0.91, 95% CI 0.86-0.97) whereas third/fourth-degree tears were associated with more (OR 1.14, 95% CI 1.04-1.25). Findings were mainly explained by similar associations with stress and mixed urinary incontinence.

CONCLUSIONS

Vaginal birth was associated with a higher risk of long-term urinary incontinence, but our results indicate that this risk may be reduced by shortening the second stage of birth.

Overactive Bladder in Late Pregnancy to 1 Year After First Vaginal Delivery

IMPORTANCE

Understanding overactive bladder (OAB) during pregnancy and postpartum may increase our knowledge of pathophysiology.

OBJECTIVES

The purpose of this study was to understand the prevalence and severity of OAB during pregnancy through 1 year postpartum as well as the associated factors.

STUDY DESIGN

This is a secondary analysis of a prospective cohort study evaluating primiparous women with a singleton term vaginal delivery assessed at the third trimester, 8 weeks postpartum, and 1 year postpartum. Overactive bladder was defined as urinary urgency plus nocturia or frequency, or urgency urinary incontinence (UUI). Overactive bladder severity was defined using average visual analog scores (0-100) from OAB symptoms on the Epidemiology of Prolapse and Incontinence Questionnaire. We evaluated associations with OAB at each time point using logistic regression.

RESULTS

Among 579 participants, mean age was 29 years. Overactive bladder prevalence was higher at 8 weeks postpartum (23%) than at the third trimester (18%, P = 0.03) and 1 year postpartum (19%, P = 0.03). Overactive bladder severity was higher at the third trimester (42.2) than at 8 weeks postpartum (23.3, P = 0.008), but not at 1 year postpartum (29.1, P = 0.1). In those with OAB, UUI severity was higher at 1 year postpartum compared with that at the third trimester ( P = 0.02). Younger age was associated with third trimester OAB. At 8 weeks postpartum, OAB was associated with older age, urinary tract infection after delivery, birth weight ≥3,500 g, and third trimester OAB. At 1 year postpartum, OAB was associated with birth weight ≥3,500 g and third trimester OAB.

CONCLUSIONS

Overactive bladder affects 1 in 5 primiparous women during pregnancy or after vaginal delivery. The increased severity of UUI postpartum and the association between higher birth weight and OAB postpartum suggest an effect of delivery.

Epidemiological Profile and Attitudes of Pregnant Women Toward Urinary Incontinence: A Single-Center Cross-Sectional Study

OBJECTIVE

The objective was to highlight the epidemiological and clinical profile of urinary incontinence in pregnant women during the first trimester and to determine their knowledge and attitudes toward this condition in Kinshasa.

METHODS

We carried out a descriptive cross-sectional study among 127 pregnant women who came for prenatal consultations in the first trimester from January to March 2022 at the LISANGA Medical Centre in Kinshasa. A questionnaire was developed containing the Urinary Symptom Profile (USP) scale. Kolmogorov-Smirnov normality tests were used to determine the normality of the distribution of the study variables. Inferential statistics were performed. The significance level was 0.05.

RESULTS

The mean age was 29.7±5.5 years. Thirty-eight women (29.9%) were primigravida. The median age of pregnancy was 6 weeks of amenorrhoea. The prevalence of urinary incontinence was 73.2%, with 31.2% of urge urinary incontinence and 16.1% of stress incontinence. In 61.4% of cases, overactive bladder was associated with urinary incontinence. Among the incontinent pregnant women, 3.2% had consulted a doctor while accepting that this condition is a health problem, 13.4% knew they had a pelvic floor muscle, 4.7% had knowledge of its rehabilitation, and 8.7% had benefited from gymnastics during pregnancy.

CONCLUSIONS

Urinary incontinence was frequent in the first trimester of pregnancy with a predominance of urgency. It was hardly discussed during prenatal consultations and pregnant women were not aware of the pelvic floor muscle, its rehabilitation, and of gymnastics during pregnancy.

Risk and protective factors for pregnancy-related urinary incontinence until 1 year postpartum: A cohort study using patient-reported outcome measures in Italy

OBJECTIVE

To investigate the epidemiology of pregnancy-related urinary incontinence (UI) and the related risk factors, focusing also on women's characteristics related to maternity pathway utilization.

METHODS

In this prospective cohort study, we used patient-reported data obtained from the systematic survey on the maternity pathway that all pregnant women in Tuscany, Italy, can join. We selected 8410 women who completed-between March 2019 and November 2022-all five follow-up questionnaires from the first trimester until 12 months postpartum, each including a UI-specific patient-reported outcome measure. We performed panel regression models to explore the related risk factors.

RESULTS

Prevalence of UI was 4.4% at the first trimester, 23.7% at the third trimester, and 15.6%, 12.6%, and 12.4% at 3, 6, and 12 months postpartum. UI occurrence and severity were higher in older, overweight/obese, and unemployed women. High-risk pregnancy and discomfort during pregnancy were risk factors. Receiving a cesarean section reduced the risk, while spontaneous tears, episiotomy, and high birth weight increased it. Women who experienced delays in pregnancy examinations because of long waiting times and women who had planned pregnancy had a higher risk, while performing during-pregnancy pelvic-floor-muscle training was protective.

CONCLUSION

Besides confirming the classic risk and protective factors for UI, we also found novel determinants related to the proper maternity pathway utilization.

Influence of prenatal urinary incontinence and mode of delivery in postnatal urinary incontinence: A systematic review and meta-analysis

BACKGROUND

It is likely that the pathophysiology of urinary incontinence (UI) differs between women who are incontinent before the first delivery and those whose incontinence occurs after. In this systematic review, we aimed to assess the association between the mode of delivery and the risk of postpartum UI in primiparous women with and without prenatal UI.

METHODS

We searched MEDLINE, Cochrane, Web of Science, Embase and CINHAL databases. Prospective studies including primiparous women during their pregnancy with a comparison of the rate of postpartum UI in women who underwent cesarean delivery or vaginal delivery according to continence status before delivery were included. The Risk Ratio (RR) was calculated with a 95% confidence interval (95% CI) using the total number of events and patients extracted from the individual studies. A subgroup comparison analysed the potential influence of women's prenatal continence status. Heterogeneity was estimated using I² statistics.

RESULTS

The risk of postpartum UI was significantly higher after vaginal delivery than after cesarean section (RR 1.80, 95% CI 1.48- 2.18). According to the subgroup test, the postpartum UI risk following a vaginal delivery, compared to cesarean section, was significantly higher in the subgroup of continent women during pregnancy (RR 2.57, 95% CI 2.17-3.04) than in the subgroup of incontinent pregnant women (1.56, 95% CI 1.27-1.92).

CONCLUSIONS

The effect of a cesarean section in preventing postpartum UI appears controversial, particularly in women with prenatal UI.

Prevalence and sociodemographic correlates of urinary incontinence in Japanese women: A web-based cross-sectional study

BACKGROUND

Epidemiological studies on urinary incontinence that used a validated international standard questionnaire are limited in Japan, and few studies have examined the sociodemographic and behavioral correlates of urinary incontinence.

OBJECTIVE

The aim of this study was to estimate the prevalence of urinary incontinence according to the Japanese version of the International Consultation on Incontinence Questionnaire-Short Form, and its sociodemographic and behavioral correlates among Japanese women.

DESIGN

A web-based cross-sectional study.

METHODS

A randomly sampled cross-sectional Internet survey was conducted in Japan among 3030 women aged 20-64 years. The International Consultation on Incontinence Questionnaire-Short Form score, sociodemographic, body mass index, medical and childbirth history, practice of pelvic floor muscle training, and medical care use were obtained. Descriptive statistics, the chi-square test, and forced-entry logistic regression analysis were used in data analysis.

RESULTS

Participants' average age was 43.4 years, and the response rate was 32.9%. The prevalence of urinary incontinence was 25.5%, and it increased with age. Stress urinary incontinence was the most common subtype (57.4%), followed by urge urinary incontinence (20.3%) and mixed urinary incontinence (16.7%). Less than 5% of those with urinary incontinence had experience with pelvic floor muscle training and medical care use. Middle-aged and older (p < 0.001), overweight and obesity (p < 0.001), vaginal delivery status (p < 0.001), low back pain (p = 0.008), and previous pelvic floor muscle training engagement (p < 0.001) were significantly associated with urinary incontinence.

CONCLUSION

Increasing population awareness of urinary incontinence from an early age and developing effective interventions for the identified at-risk groups, such as the middle-aged and older, those with overweight and obesity, and those with previous pregnancies, are urgently needed.

Healthcare resource use and cost burden of urinary incontinence to United States payers

Objective

To assess healthcare resource utilization and costs for female patients diagnosed with stress or mixed urinary incontinence (SUI/MUI) compared to a matched cohort of patients without SUI/MUI.

Methods

We conducted a retrospective matched cohort study of women using the IBM MarketScan research database. Women diagnosed with SUI/MUI between July 1, 2014 and June 30, 2016 were identified using International Classification of Diseases 9 and 10 codes for SUI or MUI with the date of first diagnosis as the index date from which 2‐year postindex healthcare resource use and direct cost data were derived from claims, examined, and compared 1:1 with patients without a SUI/MUI diagnosis, matched by age and Charlson's Comorbidity Index.

Results

A total of 68 636 women with SUI/MUI were matched 1:1 with controls. In the 2‐year postindex date, a significantly higher proportion of SUI/MUI patients had ≥1 inpatient visit and ≥1 outpatient visit compared to the control group (inpatient: 18.89% vs. 12.10%, p < 0.0001; outpatient: 88.44% vs. 73.23%, p < 0.0001). Mean primary care visits were significantly higher in SUI/MUI patients compared to controls (7.33 vs. 5.53; p < 0.0001) as were specialist visits (1.2 vs. 0.08; p < 0.0001). Mean all‐cause outpatient costs were higher in SUI/MUI patients compared to controls ($7032.10 vs. $3348.50; p < 0.0001), as were inpatient costs ($3990.70 vs. $2313.70; p < 0.0001).

Conclusion

Women with SUI/MUI consume significantly higher medical resources and incur higher costs to payers, compared to women without SUI/MUI. While reasons for this are not fully understood, improved and standardized treatment for women with SUI/MUI may positively affect cost and outcomes.

Retrospective claims analysis of physical therapy utilization among women with stress or mixed urinary incontinence

OBJECTIVE

To describe the characteristics of women with stress or mixed urinary incontinence (SUI/MUI) receiving physical therapy (PT) services, including referral patterns and PT utilization.

METHODS

Female patients with claims associated with an SUI or MUI diagnosis (International Classification of Disease-Clinical Modification [ICD-9-CM]: 625.6, 788.33, or ICD-10-CM: N39.3, N39.46) between July 01, 2014 and June 30, 2016 were identified in International business machines (IBM)'s MarketScan Research Database. Inclusion criteria included the absence of pregnancy claims and ≥80% medical and pharmacy enrollment pre- and postindex. First SUI/MUI diagnosis claim determined index. Patients were followed for 2 years, and associated UI-associated PT encounters were identified. Descriptive statistics were calculated for patients with at least one PT visit during the postindex period.

RESULTS

In a cohort of 103,813 women with incident SUI or MUI diagnosis, 2.6% (2792/103,813) had at least one PT visit in the 2 years following their diagnosis. Mean age at index PT encounter was 50.55 years. A total of 52.36% (1462/2792) women had one to four PT visits; 21.2% (592/2792) had >8 PT visits. In subanalysis of the PT cohort (1345/2792), women who received PT only had the lowest average 2-year postindex total medical cost (mean: $12,671; SD: $16,346), compared with PT plus medications (mean: $27,394; SD: $64,481), and PT plus surgery (mean: $33,656; SD: $26,245), respectively. Over 40% had their first PT visit ≥3 months after their index date.

CONCLUSIONS

The percentage of women with a PT visit associated with an incident SUI or MUI diagnosis was low (2.6%), and 30% of this group completed three or more PT visits. This suggests poor adherence to clinical guidelines regarding supervised treatment of UI in women.

IMPACT STATEMENT

Our study suggests underutilization of PT among insured women with SUI and MUI in the 2 years following diagnosis. Interventions to improve this gap in first-line care may represent an opportunity for an increased role for PTs in the care of women with UI.

Effectiveness of a Pelvic Floor Muscle Exercise Intervention in Improving Knowledge, Attitude, Practice, and Self-Efficacy among Pregnant Women: A Randomized Controlled Trial

Background

The awareness and practice of pelvic floor muscle exercise (PFME) in the prevention and reduction of the rate of urinary incontinence among pregnant women was considerably poor, despite the increased prevalence of urinary incontinence during pregnancy across Malaysia. There healthcare providers do not give adequate attention to the potential impact of PFME on urinary incontinence and there is limited local intervention addressed urinary incontinence during pregnancy. The objective of this study was to determine the effectiveness of a newly developed PFME intervention in terms of knowledge, attitude, practice, self-efficacy, and urinary symptoms.

Methods

A single-blinded, two-armed, randomized control trial was included pregnant women from 18 to 20 weeks of gestation and was conducted at the Maternity Hospital of Kuala Lumpur. The intervention group received PFME in addition to the usual perinatal care. The data were collected using validated questionnaires at 4 time points: baseline, post-intervention in the early third trimester, late third trimester, and early postnatal period. The intervention effects were analyzed using a generalized estimating equation.

Results

The primary analysis included pregnant women who had at least one follow-up; 122 women (71.8%) in the intervention group had significant improvement in knowledge, attitude, practice, and self-efficacy, as well as in the severity of urinary incontinence over time. However, improvement was not observed in self-reported urinary incontinence.

Conclusion

PFME can be considered an effective initial intervention to provide information about urinary incontinence prevention to pregnant women.

Physical activity and urinary incontinence during pregnancy and postpartum: A systematic review and meta-analysis

To assess the association of physical activity and urinary incontinence, or its recovery, during pregnancy and postpartum. A search of publications indexed in five major electronic databases (CENTRAL, PubMed, EMBASE, CINAHL and PEDro) was performed from their respective inception dates to the 30 March 2020 with a combination of keywords to identify studies of interest. Google Scholar was used for non-indexed literature. All studies comparing physical activity with standard care in pregnant and postpartum women were selected. Two reviewers independently selected studies, assessed quality and extracted data. Odds ratios with 95% confidence intervals were calculated using fixed effects or random effects models, for low and moderate heterogeneity between studies, respectively. Seven studies (n = 12479) were included. Data of four studies could be pooled for meta-analyses; subgroup and sensitivity analyses were not possible. Physical activity, either during pregnancy or postpartum, is not associated with urinary incontinence, OR 0.90 (95% CI: 0.69-1.18) and OR 1.31 (95% CI: 0.74-2.34), respectively. Due to a lack of available data, urinary incontinence recovering could not be assessed. The available low evidence does not show that physical activity during pregnancy or postpartum is associated with urinary incontinence. Moderate physical activity should therefore be encouraged for the evidence-based benefits on other obstetrical outcomes.

The Relationship Between Pelvic Floor Function and Sexual Function in Perimenopausal Women

INTRODUCTION

Perimenopausal women with pelvic floor dysfunction have worse sexual function than women with functional pelvic floor muscle (PFM), especially in terms of libido, orgasm, sexual satisfaction, and total Female Sexual Function Index (FSFI) scores.

AIM

To explore the relationship between pelvic floor muscle function, hormone levels and sexual function in perimenopausal women.

METHODS

An analytical cross-sectional study was conducted in 252 women aged 40-55 without pelvic floor disease with FSFI, pelvic floor muscle strength and the hormone levels.

MAIN OUTCOME MEASURE

The principle aim was to determine the relationships between sexual dysfunction, PFM strength, and hormone levels.

RESULTS

In the functional PFM group, the proportion of menopausal hormone therapy was higher. The proportion of overweight in the dysfunctional PFM group was higher, and had more sexual desire disorder, more orgasm disorder, lower sexual satisfaction, and poor FSFI scores. The correlation between PFM strength, sexual function and female sex hormones suggested that PFM strength and libido, sexual satisfaction and FSFI score are significantly positively correlated, while PFM strength and sexual arousal disorder and vaginal lubricity had a positive correlation. In the multivariate analysis of the risk of sexual dysfunction among perimenopausal women, the higher the PFM strength, the lower the risk of sexual dysfunction.

CONCLUSIONS

Perimenopausal women with pelvic floor dysfunction have worse sexual function than women with functional PFM, especially in obese women, those with central adiposity, and not using hormone replacement therapy. The PFM strength was weakly positively correlated with sexual arousal, orgasm, sexual satisfaction, and FSFI score. Zhuo Z, Wang C, Yu H, et al. The Relationship Between Pelvic Floor Function and Sexual Function in Perimenopausal Women. Sex Med 2021;9:100441.

Clinical assessment of pelvic floor and abdominal muscles 3 months post partum: an inter-rater reliability study

OBJECTIVES

Evaluation of the inter-rater reliability of clinical assessment methods for pelvic floor muscles and diastasis recti abdominis post partum.

DESIGN

A multicentre inter-rater reliability study.

SETTING

Three primary care rehabilitation centres in Sweden.

PARTICIPANTS

A total of 222 participants were recruited via advertising at Swedish maternity care units and social media. Eligibility for participation included female gender, ≥18 years, at maximum 3 months after childbirth. Exclusion criteria were chronic pelvic girdle pain and/or low back pain and/or pelvic floor tear grade III/IV. At each centre, 2 physiotherapists, with training and experience in pelvic floor assessment, assessed the 222 women according to a standardised protocol in random order.

OUTCOME MEASURES

Inter-rater reliability of the assessment of pelvic floor muscle function (involuntary and voluntary contraction and voluntary relaxation) and diastasis recti abdominis (width, depth and bulging).

RESULTS

Vaginal palpation of maximal voluntary contraction revealed a kappa value of 0.69 (95% CI 0.62 to 0.76). Assessments of involuntary contraction and voluntary relaxation yielded inconsistent results, with slight-to-moderate weighted kappa values ranging from 0.10 to 0.51. After 2 months of training in applying this method, diastasis recti abdominis width measured at the umbilicus by calliper yielded an intraclass correlation coefficient value of 0.83 (95% CI 0.76 to 0.87). Assessments of diastasis recti abdominis depth and bulging showed moderate kappa values, with reservation for some inconsistency between the centres.

CONCLUSIONS

Vaginal palpation of pelvic floor muscle strength is a reliable method for the postpartum muscle assessment. Additional research is needed to identify reliable assessment method for other pelvic floor muscle functions like involuntary contraction and voluntary relaxation. With some training, a calliper is a reliable instrument for measuring the postpartum diastasis recti abdominis width. This study provides novel thoughts about how to measure diastasis recti abdominis depth and bulging.

TRIAL REGISTRATION NUMBER

NCT03703804.

Natural history of urinary incontinence from first childbirth to 30-months postpartum

PURPOSE

The objectives of this study were to determine the incidence of UI in a large cohort of primiparous women before and during pregnancy and over the course of 30-months postpartum, and to identify risk factors for UI during and after pregnancy.

METHODS

Nulliparous women aged 18-35 years with singleton pregnancies were interviewed in their third trimester and asked about urinary incontinence before and during pregnancy (n = 3001). After delivery these women were interviewed at 1, 6, 12, 18, 24 and 30-months postpartum and asked about urinary incontinence occurring in the month prior to each interview. Multivariable logistic regression models identified risk factors for UI during pregnancy and during the follow-up period.

RESULTS

Overall, 4% reported having urinary incontinence before pregnancy and 36.8% during pregnancy. The strongest predictor of urinary incontinence during pregnancy was urinary incontinence before pregnancy (adjusted OR 13.11, 95% CI 7.43-23.13). Among the women with no subsequent pregnancies, the rate of urinary incontinence increased from 12.5% at 6-months postpartum to 27.4% at 30-months postpartum, 52.1% reported UI at one or more postpartum data collection stages, and the strongest predictors of postpartum UI were UI before pregnancy (adjusted OR 3.95 (95% CI 1.60-9.75) and during pregnancy (adjusted OR 4.36, 95% CI 3.24-5.87).

CONCLUSION

Our findings suggest that primiparous women who report UI before and during pregnancy should be monitored for the continuation or worsening of UI over the course of the first 2-3 years postpartum, and treatment options discussed.

Antenatal and postnatal assessment of pelvic floor muscles in continent and incontinent primigravida women

INTRODUCTION AND HYPOTHESIS

Reduced pelvic floor muscle (PFM) strength and thickness are considered critical factors in pregnancy-related stress urinary incontinence. Various methods have been evaluated for the measurement of these two factors, but validity needs to be well established. The objective was to assess the strength and thickness of pelvic floor muscles of continent and incontinent primigravida women using the digital method and transperineal ultrasound, and to study the correlation between the two methods.

METHODS

Assessment of pelvic floor muscle strength and thickness using digital assessment and transperineal ultrasound antepartum and postpartum in 100 primigravida women.

RESULTS

A total of 100 primigravida women with 46 in the study group (incontinent) and 54 in the control group (continent) were assessed. PFM strength was lower in incontinent women, with a score of 3 or less in 82.61% (38 out of 46) compared with a score of 4 or more in 98.15% of continent women (53 out of 54; p < 0.0001) antenatally, as well as postnatally, with 81.25% of the incontinent women (26 out of 32), with a score of 3 or less compared with 100% of continent women (24 out of 24), with a score of 4 or more (p < 0.0001). The PFM thickness in the incontinent group compared with the continent group at relaxation was 5.94 ± 0.51 mm and 6.64 ± 0.26 mm (p < 0.0001) antenatally and 5.98 ± 0.55 mm and 6.69 ± 0.23 mm (p < 0.0001) postnatally; at contraction it was 7.29 ± 0.56 mm and 8.70 ± 0.24 mm (p < 0.0001) antenatally and 7.39 ± 0.56 mm and 8.77 ± 0.20 mm (p < 0.0001) postnatally. The Pearson correlation coefficient for the two methods during the antenatal and postpartum periods was 0.864 and 0.743 respectively, suggestive of a positive correlation between the two methods.

CONCLUSIONS

Pelvic floor muscle strength, as well as thickness, is significantly lower among the incontinent group than among the continent group, both during antenatal and during the postnatal period.

Risk factors of postpartum stress urinary incontinence in primiparas: What should we care

Stress urinary incontinence (SUI) is a common clinical postpartum complication. It is necessary to explore the risk factors of postpartum SUI in primiparas to provide evidence support for preventing and reducing the occurrence of SUI.Primiparas who were delivered in our hospital from March 2019 to October 2020 were identified, the personal information and related treatment details of SUI and no-SUI primiparas were collected and analyzed. Logistic regression analyses were conducted to identify the risk factors of postpartum SUI in primiparas.A total of 612 primiparas were included, the incidence of SUI in primiparas was 32.03%. There were significant differences in the body mass index (BMI) before pregnancy, diabetes, abortion, delivery method, newborn's weight, epidural anesthesia, and duration of second stage of labor (all P < .05) between SUI and no-SUI group, and there were no significant differences in the age, BMI at admission, hypertension and hyperlipidemia SUI and no-SUI group (all P > .05). Logistic regression analyses indicated that BMI before pregnancy ≥24 kg/m2 (odds ratio [OR]: 2.109, 95% confidence interval [CI]: 1.042-4.394), diabetes (OR: 2.250, 95% CI: 1.891-3.544), abortion history (OR: 3.909, 95% CI: 1.187-5.739), vaginal delivery (OR: 2.262, 95% CI: 1.042-4.011), newborn's weight ≥3 kg (OR: 1.613, 95% CI: 1.095-2.316), epidural anesthesia (OR: 2.015, 95% CI: 1.226-3.372), and duration of second stage of labor ≥90 minutes (OR: 1.726, 95% CI: 1.084-2.147) were the risk factors of postpartum SUI in primiparas (all P < .05).The clinical incidence of SUI in primiparas is relatively high. In clinical practice, medical staff should conduct individualized early screening for those risk factors, and take prevention measures to reduce the occurrence of SUI.

Mobile App-Based Intervention for Pregnant Women With Stress Urinary Incontinence: Protocol for a Hybrid Effectiveness-Implementation Trial

Background

Stress urinary incontinence (SUI) is a common source of distress among women during and after pregnancy. It has a negative effect on quality of life but with poor care-seeking. Mobile health (mHealth) may be a promising solution with potential advantages. However, there is uncertainty whether a mobile app is effective for SUI symptom improvement during and after pregnancy. The implementation is also unclear. We developed an app named UIW (Urinary Incontinence for Women) aimed at improving perinatal incontinence.

Objective

The objective of this study is to evaluate the effectiveness of the UIW app-based intervention in improving SUI symptoms among pregnant women and explore the facilitators and barriers to using the UIW app to help refine and optimize the intervention.

Methods

This study is a hybrid effectiveness-implementation trial with a randomized controlled trial alongside a mixed-methods process evaluation according to the Reach, Effectiveness, Adoption, Implementation, and Maintenance (RE-AIM) framework. Pregnant women with SUI (n=336) will be recruited from a university-affiliated hospital in China. They will be randomly allocated (1:1) to either the intervention group that receive usual care plus UIW app or control group that receive usual care alone. The intervention period will last 2 months. The 5 dimensions of the RE-AIM framework will be evaluated at recruitment (-T1), baseline (T0), immediately after intervention (T1), 42 days after delivery (T2), 3 months after delivery (T3), and 6 months after delivery (T4) through project documents, online questionnaires and a pelvic floor muscle training diary, surface electromyography, log data in the background management system, and qualitative interviews. Data analysis will follow the intention-to-treat principle. Descriptive statistics, t tests, chi-square tests, and a linear mixed model will be used to analyze the quantitative data. Deductive and inductive content analysis will be used to analyze the qualitative data.

Results

The effectiveness-implementation trial started in June 2020, trial recruitment was completed in October 2020, and the intervention will last for a 2-month period. Completion of the 6-month follow-up will be in July 2021, and we anticipate that the results of this study will be published in December 2021.

Conclusions

This study will evaluate both effectiveness and implementation of the UIW app-based intervention among pregnant women. The hybrid effectiveness-implementation trial design according to the RE-AIM framework with a mixed-methods approach will give valuable insights into the effects as well as facilitators and barriers to the implementation that will influence the effects of the UIW app-based intervention.

Trial Registration

Chinese Clinical Trial Registry ChiCTR1800016171; http://www.chictr.org.cn/showproj.aspx?proj=27455

International Registered Report Identifier (IRRID)

PRR1-10.2196/22771

The Expression of Hormone Receptors as a Gateway toward Understanding Endocrine Actions in Female Pelvic Floor Muscles

OBJECTIVE

To provide an overview of the hormone actions and receptors expressed in the female pelvic floor muscles, relevant for understanding the pelvic floor disorders.

METHODS

We performed a literature review focused on the expression of hormone receptors mainly in the pelvic floor muscles of women and female rats and rabbits.

RESULTS

The impairment of the pelvic floor muscles can lead to the onset of pelvic floor dysfunctions, including stress urinary incontinence in women. Hormone milieu is associated with the structure and function alterations of pelvic floor muscles, a notion supported by the fact that these muscles express different hormone receptors. Nuclear receptors, such as steroid receptors, are up till now the most investigated. The present review accounts for the limited studies conducted to elucidate the expression of hormone receptors in pelvic floor muscles in females.

CONCLUSION

Hormone receptor expression is the cornerstone in some hormone-based therapies, which require further detailed studies on the distribution of receptors in particular pelvic floor muscles, as well as their association with muscle effectors, involved in the alterations relevant for understanding pelvic floor disorders.

A network meta-analysis protocol of conservative interventions for urinary incontinence in postpartum women

BACKGROUND

Postpartum urinary incontinence (PPUI) is a common urological condition in women after childbirth. Due to the side effects of surgical and pharmacological therapies, the patients and physicians alike express a strong preference for conservative approaches on PPUI, such as pelvic floor muscle training, biofeedback, electrical stimulation, bladder training, vaginal cones and acupuncture. Application of these conservative approaches should be guided by high quality evidence, yet their comparative effectiveness has not been well documented. Therefore, the network meta-analysis aims to compare, rank and summarize all available studies to determine which conservative intervention is more effective for PPUI.

METHODS

In this present study, qualified English and Chinese studies will be searched in PubMed, Scopus, EMBASE, The Cochrane Library, Web of Science, VIP Database, Wanfang Database, Chinese Biomedical Literature Database and China National Knowledge Infrastructure. All eligible randomized controlled trails (RCTs) of conservative interventions for PPUI will be included. R software 3.61 (R Foundation for Statistical Computing, Vienna, Austria) will be applied to synthesize data and conduct network meta-analysis. I statistic and Z test will be used to assess heterogeneity and inconsistency, respectively.

RESULTS

Ethical approval is not required for this existed literature based meta-analysis. The findings of this research will be disseminated through a recognized journal.

CONCLUSION

The findings of this study will provide ranking evidence for clinicians and patients to choose a more appropriate conservative therapy on PPUI.

TRIAL REGISTRATION NUMBER

PROSPERO CRD42020168042.

Will future doctors know enough about stress urinary incontinence to provide proper preventive measures and treatment?

Background: Stress urinary incontinence (SUI) is an embarrassing condition, which is one of the last taboos in modern medicine. The study aim was an attempt to assess medical students' knowledge of female stress urinary incontinence.Methods: The study involved 432 students of the Medical Department at the Medical University of Silesia in Katowice. Participants answered open-ended questions about: risk factors, prevention, diagnostic tests, conservative and surgical treatment in stress urinary incontinence.Results: The obtained results indicated that female students know more about SUI than male students. Women - more often than men - could provide the definition of SUI (p < 0.01); additionally, they more frequently indicated prevention methods (p < 0.01), diagnostic testing (p < 0.001) and conservative methods of treatment (p < 0.001). Not all the respondents were able to properly define stress urinary incontinence. Risk factors were known to most of the respondents but only half of them were aware of surgical treatment and prevention methods. Even fewer answered questions about conservative treatment and diagnostic tests correctly.Conclusions: We conclude that the knowledge of medical undergraduates who took part in the survey was not satisfactory. Most of the students were able to define properly the disease and point out risk factors. However, several steps should be taken to make stress urinary incontinence a disease much more known to medical students.Abbreviations: SUI: Stress urinary incontinence; Group F: Females Group; Group M: Males Group; TVT: Tension Free Vaginal Tape; TOT: Transobturator Tape.

Pelvic floor muscles after birth: Do unstable shoes have an effect on pelvic floor activity and can this be measured reliably? – A feasibility study / Der Beckenboden nach der Geburt: Verändern instabile Schuhe die Aktivität und kann diese reliabel gemessen werden? – Eine Machbarkeitsstudie

Background

Women often suffer from urinary incontinence after childbirth. Pelvic floor muscle training is an evidenced-based intervention to prevent urinary incontinence and improve its symptoms

Aim

The primary purpose of this study was to determine if there is a change in the activation of the pelvic floor muscles with different extrinsic parameters (barefoot versus unstable shoe). Second, we wanted to define variables that can be measured reliably and correlated with pelvic floor activity.

Methods

Data of 15 women who were 8 weeks to 6 months postpartum were analyzed. Two conditions (“barefoot” and “kyBoot”) were tested, with each participant performing three different tasks: walking, standing with an active pelvic floor, and standing with a passive pelvic floor. Three-dimensional kinematics of the body were recorded. Activity of the abdominal, back, and gluteal muscles was measured using surface electromyography (EMG). The activity of the pelvic floor was recorded using a vaginal electrode. Maximum pelvic floor activity was compared for each condition, and correlations among pelvic floor activity, kinematic variables, and skeletal muscle activity were determined.

Results

The maximum activity of the pelvic floor while walking was significantly higher when participants were barefoot than when they were wearing kyBoot shoes. For the standing trials, no significant differences between the conditions were detected. No surrogate marker was found to measure the pelvic floor activity.

Conclusion

With regard to the pelvic floor musculature, no recommendation is possible in favor of or against wearing unstable shoes. Technical developments are necessary to provide solutions to reliably measure the pelvic floor activity.

Prevalence and risk factors for pelvic floor disorders during early and late pregnancy in a cohort of Austrian women

PURPOSE

To investigate the prevalence of pelvic floor disorders (PFDs) in a cohort of Austrian women either during their early or late pregnancy and to search for clinical risk factors which correlate with pelvic floor symptoms during pregnancy.

METHODS

A prospective study was conducted and 200 pregnant women answered the validated German pelvic floor questionnaire during their first or third trimenon of gestation. Furthermore, a multivariate logistic regression model was used to determine independent risk factors for PFDs after adjusting for confounders.

RESULTS

96/200 (48%) women reported psychological strain in at least 1 of the 4 pelvic floor domains while the remaining 104 women (52%) were asymptomatic. Affected women showed a significant higher BMI, a more frequent positive family history and a higher rate of multiple pregnancies was noted compared to asymptomatic women (p < 0.05). Furthermore, a statistically significant positive correlation could be observed between BMI, smoking and mean bladder score as well as mean prolapse score, signifying more symptom bother from bladder and prolapse in smokers with high BMI. A significant positive correlation was also detected between mean bowel score and parity. In the multivariate model, high BMI (CI 1.013-1.143), positive family history (CI 0.044-0.260) and multiple pregnancies (CI 0.011-0.244) remained independently associated with pelvic floor symptoms (p < 0.05).

CONCLUSION

Our results demonstrate that pelvic floor-related quality of life during pregnancy is a prevalent condition which is strongly affected by the expectant mother's weight as well as her family history. In addition, women with multiple pregnancies seem to be at increased risk.

Risk factors related to acupuncture response in postmenopausal women with stress urinary incontinence: Secondary analysis of a randomized controlled trial

Postmenopausal women are at a higher risk of stress urinary incontinence (SUI). In a previous trial, electroacupuncture (EA) was shown to be an effective treatment for women with SUI. Here we present a secondary analysis to investigate the specific factors associated with response to acupuncture therapy among postmenopausal women with SUI.We conducted secondary analysis of data from a multicenter randomized controlled trial. This trial included a baseline period of 1 week and a treatment period of 6 weeks with electroacupuncture (EA) or sham electroacupuncture (SA). The patients were randomly assigned to 2 groups (EA group or SA group). Participants who showed a decrease in urine leakage by at least 50% from baseline level, as measured by 1-hour pad at week 6, were defined as responders. Baseline characteristics associated with response to acupuncture therapy (e.g., demographic, comorbidities, and lifestyle-related factors) were identified by logistic regression analysis and the interactions between treatment assignment and baseline characteristics assessed.This analysis included a total of 349 postmenopausal women, of whom 137 (39.3%) were classified as responders. Response rate in the EA group was significantly higher than that in the SA group (60.9% vs 18.9%, respectively; P < .001). On multivariable logistic regression analysis, only "mean number of urine pads used before treatment" remained a significant predictor of response to therapy (EA or SA). Greater weekly mean number of urine pads used before treatment showed a correlation with non-response to therapy, as the likelihood of clinical response reduced by 5.26% with increase in the weekly mean number of urine pads used (odds ratio 0.947, 95% confidence interval 0.902-0.993; P = .020). The interaction terms were not statistically significant.Postmenopausal women with SUI who used fewer number of pads per week before treatment were more likely to respond to therapy. This study provides valuable insights for pretreatment selection of women with SUI. Specific factors related to the therapeutic effects of acupuncture were not identified and need to be explored in future studies.Trial registration: Clinical Trials.gov: NCT01784172.

[Cesarean section and perineal protection: CNGOF Perineal Prevention and Protection in Obstetrics Guidelines]

OBJECTIVE

The endpoint was to assess the interest of planned cesarean section in primary and secondary obstetrical perineal prevention.

METHODS

This is a review of the literature about the impact of the mode of delivery in urinary incontinence (UI), anal incontinence (AI), pelvic organ prolapse (POP), sexual disorders de novo or prior to delivery and history of obstetric anal sphincter injuries (OASI).

RESULTS

The studies about UI, AI and sexual disorders report a potential protective impact of cesarean section but with a possible selection bias and an inadequate comparability of the groups. Randomized trials do not report any protective effect of planned cesarean section for these 3 disorders. The literature about POP reports a higher risk for the women who delivered vaginally but still with a possible selection bias et there is no randomized trial for this outcome. About the secondary prevention of OASI, there is no evidence in the literature for a benefit of a systematic planned cesarean section for all women. For symptomatic women, the mode of delivery has to be discussed individually. In secondary prevention of UI, AI, POP and sexual disorders, there is no evidence in the literature for a benefit of planned cesarean section even if there is a history of surgical procedure for the disorder.

CONCLUSION

Planned cesarean section is not recommended in order to prevent primary or secondary obstetrical perineal disorders except for symptomatic OASI for whom an individual discussion about the mode of delivery is recommended.

Pelvic floor dysfunction in the immediate puerperium, and 1 and 3 months after vaginal or cesarean delivery

OBJECTIVE

To identify and assess postpartum pelvic floor dysfunction (PFD) between vaginal delivery, elective cesarean delivery (ECD), and intrapartum cesarean delivery (ICD).

METHODS

The present prospective observational study included women aged at least 18 years with no history of pelvic surgery or lower urinary tract malformation, and who had not undergone pelvic floor muscle (PFM) training in the preceding 12 months, who underwent delivery at Hospital de Clínicas de Porto Alegre (HCPA), Porto Alegre, Brazil between August 1, 2016, and May 31, 2017. Participants were assessed at 48 hours (phase 1), 1 month (phase 2), and 3 months (phase 3) after delivery. Assessments included the International Consultation on Incontinence Questionnaire, Short Form (ICIQ-SF); the Jorge-Wexner anal incontinence scale; a self-rated visual analog scale for pelvic pain; the pelvic organ prolapse quantification (POP-Q) system; and a PFM perineometer.

RESULTS

A total of 227 women were assessed in phase 1 (141 vaginal deliveries; 28 ICDs; and 58 ECDs), 79 in phase 2, and 41 in phase 3. The ICIQ-SF, Jorge-Wexner scale, visual analog scale, and perineometer measurements did not identify significant differences in relation to the type of delivery (P>0.05).

CONCLUSION

The type of delivery was not associated with differences in the short-term development of postpartum PFD.

Low-intensity extracorporeal shock wave therapy promotes myogenesis through PERK/ATF4 pathway

AIM

Stress urinary incontinence (SUI) is a significant health problem for women. Treatments employing muscle derived stem cells (MDSCs) may be a promising approach to this prevalent, bothersome condition, but these treatments are invasive and require collection of cells from one site for injection into another. It is also unknown whether or not these cells establish themselves and function as muscle cells in the target tissues. Alternatively, low-intensity extracorporeal shock wave therapy (Li-ESWT) is non-invasive and has shown positive outcomes in the treatment of multiple musculoskeletal disorders, but the biological effects responsible for clinical success are not yet well understood. The aim of this study is to explore the possibility of employing Li-ESWT for activation of MDSCs in situ and to further elucidate the underlying biological effects and mechanisms of action in urethral muscle.

METHODS

Urethral muscle derived stem cells (uMDSCs) were harvest from Zucker Lean (ZUC-LEAN) (ZUC-Leprfa 186) rats and characterized with flow cytometry. Li-ESWT (0.02 mJ/mm² , 3 Hz, 200 pulses) and GSK2656157, an inhibitor of PERK pathway, were applied to L6 rat myoblast cells. To assess for myotube formation, we used immunofluorescence staining and western blot analysis in uMDSCs and L6 cells.

RESULTS

The results indicate that uMDSCs could form myotubes. Myotube formation was significantly increased by the Li-ESWT as was the expression of muscle heavy chain (MHC) and myogenic factor 5 (Myf5) in L6 cells in vitro. Li-ESWT activated protein kinase RNA-like ER kinase (PERK) pathway by increasing the phosphorylation levels of PERK and eukaryotic initiation factor 2a (eIF2α) and by increasing activating transcription factor 4 (ATF4). In addition, GSK2656157, an inhibitor of PERK, effectively inhibited the myotube formation in L6 rat myoblast cells. Furthermore, GSK2656157 also attenuated myotube formation induced by Li-ESWT.

CONCLUSION

In conclusion, this experiment reveals that rat uMDSCs can be isolated successfully and can form myotubes in vitro. PERK/ATF4 pathway was involved in myotube formation, and L6 rat myoblast cells were activated by Li-ESWT to form myotubes. These findings suggest that PERK/ATF4 pathway is activated by Li-ESWT. This study elucidates one of the biochemical pathways responsible for the clinical improvements seen after Li-ESWT. It is possible that this information will help to establish Li-ESWT as an acceptable treatment modality and may help to further refine the use of Li-ESWT in the clinical practice of medicine.

Delivery parameters, neonatal parameters and incidence of urinary incontinence six months postpartum: a cohort study

INTRODUCTION

Contradictory results have been reported regarding most delivery parameters as risk factors for urinary incontinence. We investigated the association between the incidence of urinary incontinence six months postpartum and single obstetric risk factors as well as combinations of risk factors.

MATERIAL AND METHODS

This study was based on the Norwegian Mother and Child Cohort Study, conducted by the Norwegian Institute of Public Health during 1998-2008. This substudy was based on 7561 primiparous women who were continent before and during pregnancy. Data were obtained from questionnaires answered at weeks 15 and 30 of pregnancy and six months postpartum. Data were linked to the Medical Birth Registry of Norway. Single and combined delivery- and neonatal parameters were analyzed by logistic regression analyses.

RESULTS

Birthweight was associated with significantly higher risk of urinary incontinence six months postpartum [3541-4180 g: odds ratio (OR) 1.4, 95% confidence interval (CI) 1.2-1.6; >4180 g: OR 1.6, 95% CI 1.2-2.0]. Fetal presentation, obstetric anal sphincter injuries, episiotomy and epidural analgesia were not significantly associated with increased risk of urinary incontinence. The following combinations of risk factors among women delivering by spontaneous vaginal delivery increased the risk of urinary incontinence six months postpartum; birthweight ≥3540 g and ≥36 cm head circumference; birthweight ≥3540 g and forceps, birthweight ≥3540 g and episiotomy; and ≥36 cm head circumference and episiotomy.

CONCLUSION

Some combinations of delivery parameters and neonatal parameters seem to act together and may increase the risk of incidence of urinary incontinence six months postpartum in a synergetic way.

Hysterectomy is not associated with de-novo urinary incontinence: A ten-year cohort study

OBJECTIVE

To determine prevalence, incidence proportion, and changes of urinary incontinence (UI) 10-13 years after hysterectomy compared to two control groups.

STUDY DESIGN

A longitudinal cohort study of 661 women with follow-up for ten years. Originally, 866 women answered a questionnaire on continence status preoperatively. Ten years postoperatively the queries were repeated in 371 with a hysterectomy, 89 with laparoscopic cholecystectomy (LC), and 201 with transcervical endometrial resection (TCRE). Significant incontinence was UI at least once a week. The main outcome measures were prevalence and incidence proportions of UI.

RESULTS

The overall prevalence of stress UI ten years after surgery was 23% compared to 12% preoperatively. Urge UI was prevalent in 12% compared to 5% preoperatively. Incidence proportions of stress UI were in hysterectomies 21%, in LC 15%, and in TCRE 18%. Similarly, incidence proportions of urge UI were in hysterectomies 11%, in LC 11%, and in TCRE 8%. No significant differences between surgical procedures were found; however, we found substantial amount of changes in continence status from continent to incontinent and vice versa in all three groups.

CONCLUSIONS

No significant difference was found after hysterectomy compared to controls in the prevalence or incidence proportions of UI after 10 years follow-up. Hysterectomy is not a risk factor of UI.

Pelvic floor dysfunction after vaginal and cesarean delivery among singleton primiparas

OBJECTIVE

To compare the prevalence of pelvic floor dysfunction symptoms, including pelvic organ prolapse (POP), urinary incontinence (UI), and fecal incontinence (FI) among primiparous women after vaginal and cesarean delivery.

METHODS

In a prospective cohort study at a University hospital in the Czech Republic, singleton primiparas with cephalic presentation who delivered at term were enrolled between 2002 and 2007. In 2013, 5-10 years after delivery, women who had not delivered again completed an internet-based survey about current symptoms of POP, UI, and FI, which were evaluated using validated questionnaires. The relative risk (RR) of POP, UI, and FI symptoms was calculated.

RESULTS

Complete questionnaire data were obtained from 641 women who delivered vaginally and 224 who delivered by cesarean. The mean UI score (ICIQ-SF) was 2.3 ± 3.6 in the vaginal group and 1.0 ± 2.7 in the cesarean group (P=0.005). The mean POP scores (POPDI-6) were 2.2 ± 2.3 and 2.1 ± 2.0, respectively (P=0.944). The mean Wexner scores to evaluate FI were 1.3 ± 1.7 and 1.0 ± 1.5, respectively (P=0.220). The RR of pelvic floor dysfunction after vaginal delivery was highest for women with UI symptoms (RR 1.15, 95% confidence interval 0.92-1.42).

CONCLUSION

Significant differences in the occurrence of symptoms of UI were observed after vaginal delivery as compared with cesarean delivery. ClinicalTrials.gov: NCT02661867.

Changes in management of stress urinary incontinence following the 2011 FDA Health Notification

Purpose:

We sought to assess for impact on management trends in new patients presenting to our institution with stress urinary incontinence (SUI) following the release of the FDA Health Notification in July 2011 for vaginal mesh.

Materials and methods:

Chart analysis was performed on patients assigned a primary International Classification of Diseases (ICD-9) diagnosis code of 625.6 for SUI at initial consultation by two providers at our institution between June 1, 2010 and November 30, 2014. Rates of treatment and types of procedures performed were analyzed: urethral bulking, mesh sling, or pubovaginal sling.

Results:

A total of 333 new patients were identified with an increasing trend over time. One hundred and twenty-three patients underwent 153 procedures for stress incontinence. The mean proportion that had a procedure per six-month period was 37%, with decreasing proportions over time. Initially all procedures were midurethral mesh slings, with a decline at the time of and after the notification, and a temporary increase in bulking procedures. Subsequently, there was a rise again in sling placement, namely with an increase in pubovaginal slings. Of the 20 pubovaginal slings placed, 13 were placed in patients who had a prior anti-incontinence surgery (eight for sling failure, vaginal mesh, or fixed urethra, and two in patients with mesh extrusion/erosion). Seven were performed in patients who had never had prior surgery (two for very high-grade incontinence, two with urethral diverticulectomy, and three in patients who expressed concern about mesh).

Conclusions:

Although there were an increasing number of patients seen for management of SUI over time, there was a progressive decrease in the proportion of patients having anti-incontinence procedures after release of the FDA notification. There was an overall decrease in the use of mesh slings and an increase in bulking, and more notably, placement of pubovaginal slings.

Determinates of muscle precursor cell therapy efficacy in a nonhuman primate model of intrinsic urinary sphincter deficiency

BACKGROUND

Cell therapy for intrinsic urinary sphincter deficiency (ISD) in women has been moderately effective, and improvements are needed. To improve treatment efficacy, it is important to better understand determinates of cell efficacy in the different patient cohorts. We have reported that in nonhuman primates the chronicity of ISD may affect cell efficacy, but additional factors (age, psychosocial stress, hormone status, body weight) can be associated with many disease/treatment outcomes in women - and these factors are the focus of this study.

METHODS

Adult female cynomolgus monkeys were divided into groups: (1) younger (n = 10, 5-8 years of age) versus older (n = 10, 13-18 years of age); (2) age-matched/socially subordinate (n = 15) versus socially dominant (n = 15); and (3) age-matched lower body weight (n = 6) versus higher body weight (n = 6). Autologous skeletal muscle precursor cells (skMPCs, 5 million) were injected into the urinary sphincter 6 weeks after a surgically induced ISD procedure. Resting and pudendal nerve-stimulated maximal urethral pressures (MUP) were measured before, and 3 and 6 months post-skMPC treatment and urinary sphincter muscle/collagen content within the sphincter complex was measured by quantitative histology 6 months posttreatment.

RESULTS

Efficacy of skMPCs on MUP and sphincter muscle/collagen ratios are affected by age (average 40% reduction in efficacy, p < 0.05 vs. younger NHPs), social stress (average 30% reduction in efficacy, p < 0.05 vs. socially dominant) and body weight/fasting glucose concentrations (average 35% reduction in efficacy, p < 0.05 vs. lower body weight).

CONCLUSION

Multiple factors (age, stress-induced dysmenorrhea, and body weight) affect the efficacy of cell therapy to restore structure and function in the urinary sphincter complex in NHPs with ISD. Consideration of, and alternatives for, these patient cohorts should be considered.

Women’s pelvic floor muscle strength and urinary and anal incontinence after childbirth: a cross-sectional study

Abstract OBJECTIVE To analyse pelvic floor muscle strength (PFMS) and urinary and anal incontinence (UI and AI) in the postpartum period. METHOD Cross-sectional study carried out with women in their first seven months after child birth. Data were collected through interviews, perineometry (Peritron™), and the International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF). RESULTS 128 women participated in the study. The PFMS mean was 33.1 (SD=16.0) cmH2O and the prevalence of UI and AI was 7.8% and 5.5%, respectively. In the multiple analyses, the variables associated with PFMS were type of birth and cohabitation with a partner. Newborn’s weight, previous pregnancy, UI during pregnancy, and sexual activity showed an association with UI after child birth. Only AI prior to pregnancy was associated with AI after childbirth. CONCLUSION Vaginal birth predisposes to the reduction of PFMS, and caesarean section had a protective effect to its reduction. The occurrence of UI during pregnancy is a predictor of UI after childbirth, and women with previous pregnancies and newborns with higher weights are more likely to have UI after childbirth.AI prior to pregnancy is the only risk factor for its occurrence after childbirth. Associations between PFMS and cohabitation with a partner, and between UI and sexual activity do not make possible to conclude that these variables are directly associated.

Prevalence and knowledge of urinary incontinence and possibilities of treatment among low-income working women

Abstract Introduction: Urinary incontinence (UI) can affect women's lives in all areas, including in the occupational context, due to an uncomfortable workplace, incorrect positions for long periods of time and the handling of heavy items. Another worrying aspect is that the knowledge about urinary incontinence, in the health area, and its forms of treatment is still small among the low-income population. Objective: To verify the prevalence and knowledge about urinary incontinence and treatment possibilities among low-income working women. Methods: A cross-sectional study carried out on working women of a poultry processing plant. Results: The study included 136 women with an average age of 33.7 ± 9.7 years; body mass index of 26.6 ± 5.6 kg/m2; parity of 2.1 ± 1.1 children; monthly income of 2.3 ± 1 minimum wages. Of those interviewed, 63.9% were white; 44.8% had incomplete primary education; 52.9% were single; 53.6% underwent cesarean section delivery; and of those who underwent normal labor delivery, 86.6% underwent episiotomy. The prevalence of urinary incontinence was found to be 2.9%, and among the women affected, two reported that UI led to sexual, social, water and occupational restriction, and one of them believes that UI interferes with her concentration and productivity in the workplace. Regarding health knowledge, 46.3% had never heard of urinary incontinence before, and more than half (66.1%) did not know about the existence of medical treatment. All women interviewed (100%) were unaware of the existence of physiotherapeutic treatment. Conclusion: The prevalence of urinary incontinence was among those interviewed was small, however, the knowledge about the symptoms and possibilities of medical, and mainly physiotherapeutic treatment. is scarce among these women. This study allows to alert and to guide the health professionals and the society about the importance of actions that promote health education in the low income population, besides allowing these women to prevent or seek the appropriate treatment in order to guarantee a better quality of life.

What are the probable predictors of urinary incontinence during pregnancy?

Objectives. The frequency, predisposing factors and impact of urinary incontinence (UI) on quality of life (QoL) during pregnancy were investigated.

Materials and Method. A preliminary cross-sectional survey was studied among pregnant women between January and July of 2014. A total of 132 pregnant women were recruited using a questionnaire form for sociodemographic features, the Turkish version of the International Consultation on Incontinence-Short Form (ICIQ-SF), for the characteristics of UI and Wagner’s Quality of Life scale to assess impact on QoL. p < 0.05 was set significant.

Results.Urinary incontinence was present in 56 out of 132 pregnant women (42.4%, UI-present group): mean age, 26.7 ± 5.4y(p = 0.780); median height, 160 cm (min–max: 153–176, p = 0.037); median BMI, 28.7 kg/m²(min–max: 22.4–50.0, p = 0.881); urine leakage occurred per week once (n = 18, 32.1%), twice or thrice (n = 8, 14.3%); per day few times (n = 14, 25%), once (n = 5, 8.9%) and always (n = 8, 14.3%) with mainly a small amount of urine leakage (n = 33, 58.9%) or a moderate (n = 4, 7.1%). There were statistically significant relationships between QoL scores and frequency of UI (p = 0.002) or amount of leakage (p = 0.002). Impact on QoL scores ranged from mild (n = 33, 58.9%), moderate (n = 4, 7.1%) to severe (n = 4, 7.1%) levels in daily life. UI impacted the daily life activities of women by making them less likely to undertake activities outside their homes (23.2%), by affecting their working performance and friendships (8.9%), their daily home activities (7.1%), their general health status (12.5%), their sexual relations (12.5%), by making them more nervous or anxious (10.7%) and by the need to wear pads or protectors (25%). ANOVA, Tukey, and Tamhane tests as the minimal important difference model yielded significant relevance between statistical analyses and clinical outcomes by using standard deviations (p = 0.001, 0.001 and 0.005 respectively). The following features favored the occurence of UI: Age (OR = 0.845, 95% CI [0.268–2.669]), being a housewife (OR = 1.800, 95% CI [0.850–3.810]), anemia (OR = 0.939, 95% CI [0.464–1.901]), parity (OR = 0.519, 95% CI [0.325–0.829]), miscarriage (OR = 1.219, 95% CI [0.588–2.825]) and living in rural areas (OR = 1.800, 95% CI [0.887–3.653]). Height (p = 0, 037), educational status (0.016), miscarriage (0.002), parity (0.006) and place of living (0.020) were significant factors.

Conclusions.Many pregnant women are suffering from UI, which warrants a significant public health consideration in the region. Age, height, being a housewife or graduation level higher than primary school, living in rural, parity, miscarriage, and anemia were the factors in favor of the onset of UI. The authors plan a health promotion program in the region according to the results in order to provide information to health caregivers, especially family physicians, and to educate women about the predictors of UI and pelvic floor exercises for primary prevention and secondary relief of UI during and after pregnancy and provide some hygienic supplies to the poor in this aspect.

Prevalence and trends of pelvic floor disorders in late pregnancy and after delivery in a cohort of Israeli women using the PFDI-20

OBJECTIVE

To investigate the prevalence of pelvic floor disorders (PFD) in a cohort of Israeli women at late pregnancy and three months postpartum, to define changes in PFD rates and to evaluate various obstetrical factors that may correlate with these changes.

METHODS

A prospective longitudinal cohort study was conducted between March and July 2014. The PFDI-20 questionnaire (validated in the Hebrew language) was used to evaluate pelvic floor distress symptoms 24h and 3 months after delivery (representing the third trimester and post-partum period, respectively). Patients with a preterm delivery (<36 completed weeks of gestation), delivery of a stillbirth, non-fluency in Hebrew and patients with inability to complete the questionnaire due to a communication problem were excluded from the study. In addition to the PFDI results demographic and clinical data were collected from the patients' medical records. Routine statistical methods were used to interpret the results.

RESULTS

During the study period 117 women answered the first questionnaire and only 37 had filled the second questionnaire. The most prevalent item group reported in the third trimester was the urinary distress symptoms. Urinary frequency was the most common with 65% of patients reporting this symptom. At the post-partum period the most prevalent item group reported was the colorectal and anal distress with 31.5% of patients reporting increased straining efforts. There was a mixed trend in the changes noted between the two questionnaires. While some items improved in the puerperium as compared with late pregnancy others have worsened. In a multivariable analysis the only statistically significant finding was that at the post-partum follow-up, stress urinary incontinence was significantly associated with spontaneous perineal tears at delivery. Other obstetrical parameters including episiotomy and birth weight were not found to be significantly associated with any of the PFD items.

CONCLUSION

We have demonstrated that PFD is prevalent both in late pregnancy and in the puerperium. There are mixed trends of spontaneous recovery following childbirth. A significant association between perineal tears and SUI 3 months after delivery was noted.

Physical activity and the pelvic floor

Pelvic floor disorders are common, with 1 in 4 US women reporting moderate to severe symptoms of urinary incontinence, pelvic organ prolapse, or fecal incontinence. Given the high societal burden of these disorders, identifying potentially modifiable risk factors is crucial. Physical activity is one such potentially modifiable risk factor; the large number of girls and women participating in sport and strenuous training regimens increases the need to understand associated risks and benefits of these exposures. The aim of this review was to summarize studies reporting the association between physical activity and pelvic floor disorders. Most studies are cross-sectional and most include small numbers of participants. The primary findings of this review include that urinary incontinence during exercise is common and is more prevalent in women during high-impact sports. Mild to moderate physical activity, such as brisk walking, decreases both the odds of having and the risk of developing urinary incontinence. In older women, mild to moderate activity also decreases the odds of having fecal incontinence; however, young women participating in high-intensity activity are more likely to report anal incontinence than less active women. Scant data suggest that in middle-aged women, lifetime physical activity increases the odds of stress urinary incontinence slightly and does not increase the odds of pelvic organ prolapse. Women undergoing surgery for pelvic organ prolapse are more likely to report a history of heavy work than controls; however, women recruited from the community with pelvic organ prolapse on examination report similar lifetime levels of strenuous activity as women without this examination finding. Data are insufficient to determine whether strenuous activity while young predisposes to pelvic floor disorders later in life. The existing literature suggests that most physical activity does not harm the pelvic floor and does provide numerous health benefits for women. However, future research is needed to fill the many gaps in our knowledge. Prospective studies are needed in all populations, including potentially vulnerable women, such as those with high genetic risk, levator ani muscle injury, or asymptomatic pelvic organ prolapse, and on women during potentially vulnerable life periods, such as the early postpartum or postoperative periods.

Trends in urinary incontinence in women between 4 and 24 months postpartum in the EDEN cohort

OBJECTIVE

Our aim was to study risk factors associated with the prevalence, incidence and remission of urinary incontinence (UI) between 4 and 24 months postpartum.

DESIGN

Longitudinal study (EDEN cohort).

SETTING

Two French university hospitals.

POPULATION

1643 women completed the questionnaire at 4 months and 1409 at 24 months, including 1354 who completed it both times.

METHODS

Multivariate analyses identified risk factors for UI prevalence at 24 months postpartum, persistent UI versus remission, de novo UI versus continence, de novo UI versus persistent UI, and changes in IU severity between 4 and 24 months postpartum.

MAIN OUTCOME MEASURES

Postnatal UI and Sandvik UI severity score.

RESULTS

UI prevalence was 20.7% (340/1643) at 4 months and 19.9% (280/1409) at 24 months. Significant factors associated with UI at 24 months were older age [OR = 1.07/year (95%CI 1.04-1.11)], BMI [2.35 (1.44-3.85) ≥30 versus <25 kg/m²], higher parity [1.77 (1.14-2.76) ≥3 versus 1], breastfeeding [1.54 (1.08-2.19) ≥3 versus < 3 months], pregnant at follow up [3.44 (2.25-5.26)], and caesarean delivery [0.62 (0.40-0.97) versus vaginal] [OR, odds ratio (CI, confidence interval)]. The likelihood of UI remission at 24 months was 51.9% (149/287). Caesarean delivery was associated with increased likelihood of UI remission [0.43 (0.19-0.97)]. The risk of de novo UI at 24 months was 12.5% (135/1067) and was associated with a new pregnancy [3.63 (2.13-6.20)].

CONCLUSIONS

Between 4 and 24 months postpartum UI, remission occurred in half of the cases. These postnatal UI changes were essentially related to mode of delivery and subsequent pregnancy.

TWEETABLE ABSTRACT

Postnatal urinary incontinence progression is mostly related with mode of delivery and subsequent pregnancy.

Degree of bother from pelvic floor dysfunction in women one year after first delivery

OBJECTIVE

To investigate rates and range of pelvic floor dysfunction complaints, including anterior and posterior compartments and sexual function, in an unselected population of primiparous women one year from delivery, and examine the degree of bother they cause.

STUDY DESIGN

Cross sectional study. Primiparous women who delivered their first child in our delivery wards 10-14 months previously, were approached by phone and asked to complete the Pelvic Floor Symptom Bother Questionnaire (PFBQ) and provide general demographic information. Details regarding participants' labor and delivery were extracted from electronic medical records. PFBQ score was correlated to demographic and labor and delivery parameters.

RESULTS

198 women completed the questionnaire. Response rate was 94%. Scores ranged from 0 to 44.4 (out of a possible 100). At least one symptom of PFD was reported by 64% of respondents. Various degrees of urinary incontinence were reported by 9.1-12.1% of women. Some degree of fecal or flatus incontinence was reported by 10.1% of women; 11.1% reported some degree of obstructed defecation. Severe degree of bother from one or more PFD symptoms was reported by 40.1-90.9%. Some level of dyspareunia was reported by 37.3%. A "dose response" trend between mode of delivery and rate of dyspareunia was observed.

CONCLUSIONS

Two-thirds of primiparous women one year after delivery suffer PFD symptoms that cause some degree of bother. When asked, women are willing to discuss pelvic floor function; caregivers should initiate discussion and refer women promptly to interventions where necessary.

Morphological and functional response to injury to the external urethral sphincter - similarities and differences between male and female rats

AIMS

The objective of this study was to evaluate the similarities and differences of the urethral morphological and functional changes following external urethral sphincter EUS injury in male and female rats.

METHODS

30 female and 30 male age-matched Wistar rats were used in the experiments. Half of them underwent electrocauterization of the surrounding tissues lateral to the urethra at the level of the (EUS) and the others, a sham operation. At 2, 6, and 16 weeks after surgeries they underwent anesthetized cystometry, measurement of leak point pressure (LPP) and their urethras were harvested for morphological analyses.

RESULTS

There were no differences in cystometric parameters between sex-time-matched animals, ensuring normal bladder function in the manipulated animals. The mean LPP in male and female rats was lower compared with sham animals. Age-time-matched sham operated male rats exhibited a higher LPP compared with female rats. The reduction in LPP comparing electrocauterized and sham time-matched animals was more pronounced in male rats than in female rats. Electrocauterization produced urethral collagen deposition and nerve damage in both male and female animals. Muscle atrophy and disruption also occurred, being more evident in female rats.

CONCLUSIONS

The urethras of male and female rats exhibited a similar morphological and functional response to electrocauterization. The time-course evaluation revealed that the male animal model is as reliable, reproducible and long-lasting as the female model. Intact males had a higher LPP than female rats and the nerve injury led to a more drastic impairment of this mechanism.

Brain-derived neurotrophic factor in urinary continence and incontinence

Urinary incontinence adversely affects quality of life and results in an increased financial burden for the elderly. Accumulating evidence suggests a connection between neurotrophins, such as brain-derived neurotrophic factor (BDNF), and lower urinary tract function, particularly with regard to normal physiological function and the pathophysiological mechanisms of stress urinary incontinence (SUI) and bladder pain syndrome/interstitial cystitis (BPS/IC). The interaction between BDNF and glutamate receptors affects both bladder and external urethral sphincter function during micturition. Clinical findings indicate reduced BDNF levels in antepartum and postpartum women, potentially correlating with postpartum SUI. Experiments with animal models demonstrate that BDNF is decreased after simulated childbirth injury, thereby impeding the recovery of injured nerves and the restoration of continence. Treatment with exogenous BDNF facilitates neural recovery and the restoration of continence. Serotonin and noradrenaline reuptake inhibitors, used to treat both depression and SUI, result in enhanced BDNF levels. Understanding the neurophysiological roles of BDNF in maintaining normal urinary function and in the pathogenesis of SUI and BPS/IC could lead to future therapies based on these mechanisms.

Urinary incontinence related to perineal muscle strength in the first trimester of pregnancy: cross-sectional study

Objective To analyze pelvic floor muscle strength (PFMS), urinary continence and quality of life related to urinary incontinence (UI) of women in the first trimester of pregnancy. Method Cross-sectional study with a sample of 500 women who started prenatal care in a complementary healthcare facility in Guarulhos, state of São Paulo, from 2012 and 2013. Pelvic floor muscle strength was evaluated through perineometry. The pregnant women who presented UI answered the International Consultation on Incontinence Questionnaire-Short Form (ICIQ-SF). Results It was found that maternal age (OR=1.06; CI95% 1.02-1.11) and prior UI (OR=15.12; 95%CI 8.19-27.92) are the variables that, in tandem, best explain the occurrence of UI at the beginning of pregnancy. The mean score on the ICIQ-SF was 8.2 (SD=3.9), considered a moderate impact on quality of life. Conclusion Older pregnant women with prior UI are more likely to have UI in the first trimester of pregnancy.