The prevalence of stress incontinence during pregnancy and following delivery

Is there an association between parity and urinary incontinence in women during pregnancy and the first year postpartum?: A systematic review and meta-analysis

AIMS

To systematically review the literature on possible associations between parity and urinary incontinence (UI) during pregnancy and in the first year postpartum.

METHODS

We searched the databases Pubmed, CINAHL, Embase, the Cochrane Library, PsycINFO, MIDIRS, ClinicalTrials.gov (inception-18 April 2020). One reviewer screened all titles. Two reviewers independently selected studies by abstract and full text. Risk of bias was assessed using the Quality In Prognosis Studies tool. Findings were synthesised in meta-analysis or narratively. We assessed the certainty of evidence using the Grading of Recommendations, Assessment, Development and Evaluation Working Group approach adopted for prognostic studies.

RESULTS

We identified 16 643 records and 39 were included. Thirty studies examined UI during pregnancy and 12 examined UI postpartum. Multiparity was associated with UI at any point in the last pregnancy (odds ratio [OR]: 1.59 [1.26-2.00], 5 studies, 1565 participants) and in the third trimester when measured by ICIQ-SF (OR: 2.67 [1.53-4.67], 4 studies, 1150 participants), but not when studies measured the UI point prevalence (OR: 2.48 [0.91-6.79], 4 studies, 52 976 participants), or if they measured the prevalence at one point in any trimester (OR: 1.09 (0.60-1.95), 3 studies, 872 participants). At 3 months postpartum, UI was associated with multiparity (OR: 2.03 [1.35-3.06], 4 studies, 6781 participants).

CONCLUSIONS

Increased parity was associated with UI in the first year postpartum, but studies on UI during pregnancy had conflicting results. The evidence was (very) uncertain. Future studies should use comparable definitions and further explore UI sub-types.

Prevalence, incidence and bothersomeness of urinary incontinence between 6 weeks and 1 year post-partum: a systematic review and meta-analysis

Introduction and hypothesis

Urinary incontinence (UI) is a common complaint for post-partum women. Reported prevalence and incidence figures show a large range due to varying study methodology. The crude prevalence of post-partum UI may differ when accounting for bother. Precise prevalence and incidence figures on (bothersome) UI are of relevance for health care providers, research planning, and policy makers. Therefore, we conducted a systematic review and meta-analysis to investigate the prevalence and incidence of UI in post-partum women in the Western world for relevant subgroups and assessed experienced bother in relation to UI.

Methods

Observational studies, published between January 1998 and March 2020 and reporting on prevalence and incidence between 6 weeks and 1 year post-partum, were included, regardless of type of UI or setting. We used a random effects model with subgroup analyses for post-partum period, parity and subtype of UI.

Results

The mean (weighted) prevalence based on 24 included studies, containing a total of 35.064 women, was 31.0%. After an initial drop in prevalence at 3 months post-partum, prevalence rises up to nearly the same level as in the third trimester of pregnancy at 1 year post-partum (32%). Stress UI (54%) is the most prevalent type. UI prevalence is equal among primi- and multiparous women. Experienced bother of UI is heterogeneously assessed and reported to be mild to moderate.

Conclusions

Post-partum UI is highly prevalent in women in the Western world. After an initial drop it rises again at 1 year post-partum. Experienced bother is mild to moderate.

Supplementary Information

The online version contains supplementary material available at 10.1007/s00192-021-04877-w.

Brain derived neurotrophic factor mediates accelerated recovery of regenerative electrical stimulation in an animal model of stress urinary incontinence

OBJECTIVE

Stress urinary incontinence (SUI) is prevalent among older women and can result from insufficient regeneration of the pudendal nerve (PN). Electrical stimulation (ES) of the PN upregulates brain derived neurotrophic factor (BDNF) and accelerates regeneration. Using tyrosine kinase B (TrkB) to reduce the availability of free BDNF, the aim of this study was to determine if BDNF is necessary for accelerated recovery via ES in a model of SUI.

METHODS

Our SUI model consists of Female Sprague-Dawley rats, whose PNs were crushed bilaterally twice for 30 s, followed by insertion of a modified Foley catheter into the vagina with balloon inflation for 4 h. These rats were divided into 4 groups: 1) Sham PN crush and sham vaginal distension without electrode implantation and with saline treatment (sham injury); 2) SUI with sham stimulation and saline treatment (SUI); 3) SUI and ES with saline treatment (SUI&ES); and 4) SUI and ES with TrkB treatment (SUI&ES&TrkB). Animals underwent ES or sham stimulation four times a week for two weeks. Four weeks after injury, animals underwent functional testing consisting of leak point pressure (LPP) with simultaneous external urethral sphincter (EUS) electromyography (EMG) and pudendal nerve recordings. Data was analyzed using ANOVA with Holm-Sidak posthoc test (p < 0.05). EUS and PN specimen were sectioned and stained to semi-quantitatively evaluate morphology, regeneration, and reinnervation.

RESULTS

LPP and EUS EMG firing rate were significantly increased in the sham injury and SUI&ES groups compared to the SUI and SUI&ES&TrkB groups. EUS of SUI rats showed few innervated neuromuscular junctions compared to sham injured rats, while both treatment groups showed an increase in reinnervated neuromuscular junctions.

CONCLUSION

ES accelerates functional recovery via a BDNF-mediated pathway in a model of SUI. These findings suggest ES could be used as a potential regenerative therapy for women with SUI.

Risk Factors for Urinary Incontinence in Pregnancy: A Case Control Study

OBJECTIVE

 Urinay incontinence (UI) is a major public health problem that can harm women in any period of life, including during the gestational period. Urinary incontinence during pregnancy has been studied because this condition can reduce the quality of life and interfere in several aspects of the maternal-fetal binomial. The aim of this study was to determine the prevalence of UI in nullipara pregnant women and to identify risk factors associated with UI in this population.

METHODS

 This is a case-control study in which we invited nullipara women between 12 and 20 weeks of pregnancy to participate in the research. They were asked to answer a specific questionnaire, write a 3-day bladder diary, and undergo a urogynecological evaluation including pelvic organ prolapse quantification (POP-Q), empty stress supine test (ESST), and pelvic floor muscle assessment.

RESULTS

 A total of 70 out of 73 patients accepted to participate in the study, and the prevalence of UI in this population was 18.3%. Tobacco use was identified as an independent risk factor for UI in pregnant women (odds ratio 8.0). All other factors analyzed were not significantly associated to UI in pregnancy.

CONCLUSION

 Urinary incontinence can be a major problem in pregnancy. We identified the use of tobacco as a risk factor for developing UI in pregnancy, which provides an extra reason to encourage patients to quit smoking.

Urinary incontinence experiences of pregnant women: A qualitative study

OBJECTIVE

The research was carried out to determine the life experiences of pregnant women who have urinary incontinence problems.

METHODS

The type of the research is of qualitative type. Views of pregnant women were coded according to repeating frequencies; then thematic grouping was done. Both common views and individual repetitions of the pregnant women were coded. During the study, 52 pregnant women stated that they had urinary incontinence problems. However, five pregnant women did not want to participate in the study and six pregnant women wanted to leave during the interview. Interviews ended with 41 pregnant women.

RESULTS

In the study, the mean age of the pregnant women was determined as 29.75 ± 4.83, and the mean gestational week was 27.85 ± 5.60. The views of pregnant women are divided into five main themes and 16 sub-themes. The main themes for the urinary incontinence life experiences of pregnant women were determined as "strategies to take precautions, psychological effects, pregnancy and baby-specific effects, physical effects and changes in their relationship with the spouse."

CONCLUSION

As a result, it was determined that urinary incontinence problem negatively affected the life experience of pregnant women.

Case of acute severe postpartum urinary incontinence: an extravesical subsphincteric prolapsed ureterocoele

A 32-year-old woman presents to outpatients 10 days postpartum, with symptoms of an intermittent vaginal lump and urinary incontinence. Vaginal examination revealed no demonstrable prolapse or stress incontinence. A swelling in the bladder was noted during an antenatal scan suggesting a ureterocoele. She was referred for pelvic floor physiotherapy in the first instance. Forty-eight hours later, she represented to casualty with discomforting vaginal lump symptoms and continuous urinary incontinence. At this stage on vaginal inspection, there was an evident dusky lump emerging from the urethra with continuous incontinence. An extravesical subsphincteric prolapsed ureterocoele was evident, 5 cm beyond the external urethral meatus. The diagnosis was confirmed with an MRI scan which demonstrated the prolapsed obstructing ureterocoele causing significant left-sided hydroureteronephrosis. The ureterocoele was managed with a cystoscopy and transurethral incision of the ureterocoele under anaesthesia, which facilitated drainage and resolution. At 3-month postoperatively, the patient remains continent and satisfied.

Controlled release of insulin-like growth factor 1 enhances urethral sphincter function and histological structure in the treatment of female stress urinary incontinence in a rat model

OBJECTIVES

To determine the effects of controlled release of insulin-like growth factor 1 (IGF-1) from alginate-poly-L-ornithine-gelatine (A-PLO-G) microbeads on external urethral sphincter (EUS) tissue regeneration in a rat model of stress urinary incontinence (SUI), as SUI diminishes the quality of life of millions, particularly women who have delivered vaginally, which can injure the urethral sphincter. Despite several well-established treatments for SUI, growth factor therapy might provide an alternative to promote urethral sphincter repair.

MATERIALS AND METHODS

In all, 44 female Sprague-Dawley rats were randomised into four groups: vaginal distension (VD) followed by periurethral injection of IGF-1-A-PLO-G microbeads (VD + IGF-1 microbeads; 1 × 10⁴ microbeads/1 mL normal saline); VD + empty microbeads; VD + saline; or sham-VD + saline (sham).

RESULTS

Urethral function (leak-point pressure, LPP) was significantly lesser 1 week after VD + saline [mean (sem) 23.9 (1.3) cmH₂ O] or VD + empty microbeads [mean (sem) 21.7 (0.8) cmH₂ O) compared to the sham group [mean (sem) 44.4 (3.4) cmH₂ O; P < 0.05), indicating that the microbeads themselves do not create a bulking or obstructive effect in the urethra. The LPP was significantly higher 1 week after VD + IGF-1 microbeads [mean (sem) 28.4 (1.2) cmH₂ O] compared to VD + empty microbeads (P < 0.05), and was not significantly different from the LPP in sham rats, demonstrating an initiation of a reparative effect even at 1 week after VD. Histological analysis showed well-organised skeletal muscle fibres and vascular development in the EUS at 1 week after VD + IGF-1 microbeads, compared to substantial muscle fibre attenuation and disorganisation, and less vascular formation at 1 week after VD + saline or VD + empty microbeads.

CONCLUSION

Periurethral administration of IGF-1-A-PLO-G microbeads facilitates recovery from SUI by promoting skeletal myogenesis and revascularisation. This therapy is promising, but detailed and longer term studies in animal models and humans are needed.

Gestational Urinary Incontinence in Nulliparous Pregnancy- A Pilot Study

INTRODUCTION

Urinary Incontinence (UI) in pregnancy is more than a disease; it is a social problem that necessitates special care and management. The exact rationales and biological facts behind urinary incontinence during pregnancy are unclear and multivariate.

AIM

This pilot study was designed to examine the direct effect of gestational factors (e.g., physical and metabolic/hormonal) on the presence of Gestational Urinary Incontinence (GUI), in nulliparous pregnant women.

MATERIALS AND METHODS

This was a questionnaire-based study comprising of 61 nulliparous pregnant woman who had not experienced any Urinary Incontinence (UI) before their pregnancies. Patients were examined during their pregnancies within the framework of the antenatal care program continued at the Division of Perinatology, Hacettepe University, Ankara, Turkey, between January 2015 and December 2016. A 'urinary incontinence questionnaire' was used three times during different periods of gestation (11-14, ~24 and ~37 gestational weeks) for each patient. Statistical analysis was performed using the SPSS software version 20.0. The Chi-Square test or Fisher's-exact test was used to compare proportions in groups.

RESULTS

The prevalence of total urinary incontinence (stress urinary incontinence, urge urinary incontinence and mixed urinary incontinence) in nulliparous pregnant women was 4.9% (n=3), 9.8% (n=6) and 26.2% (n=16) at 11-14, ~24 and ~37 gestational weeks, respectively. Stress urinary incontinence was found to be 3.3% (n=2), 6.6% (n=4) and 16.4% (n=10) at 11-14, ~24 and ~37 gestational weeks, respectively. Urge urinary incontinence frequency was found to be 1.6% (n=1), 3.3% (n=2), 6.6% (n=4), and mixed urinary incontinence frequency was 0% (n=0), 0% (n=0), 3.3% (n=2) at 11-14, ~24 and ~37 gestational weeks, respectively. Maternal age, birth weight of the neonate and gestational age at birth had no statistically significant effect on GUI.

CONCLUSION

Urinary incontinence is an important issue during pregnancy and related symptoms are more common in third trimester.

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.

Lower Urinary Tract Symptoms and Urinary Incontinence During Pregnancy

OBJECTIVE

Lower urinary tract symptoms (LUTS) can frequently be seen in pregnant women. Pregnancy and delivery have been considered as risk factors in the occurrence of pelvic floor dysfunction and determinants of LUTS. The main associated risk factor is parity. In the present study, we aim to determine the frequency of LUTS and urinary incontinence (UI) during pregnancy and the associated risk factors.

METHODS

This prospective study was carried out in a total of 250 women during their 28- and 40-gestational week checks. The Urinary Distress Inventory-6, the Incontinence Impact Questionnaire-7, and International Consultation on Incontinence Questionnaire-Short Form were used to determine LUTS and its effect on quality of life.

RESULTS

The mean age and gestational age of the participants were 29.41 ± 5.70 year (range 18-44) and 35.45 ± 2.98 weeks (range 28-40), respectively. The prevalence of LUTS was 81.6%. The prevalence of UI during pregnancy was 37.2%. Stress urinary incontinence, urge urinary incontinence and mixed urinary incontinence were diagnosed as 15.6, 4.8 and 16.8%, respectively. We found that advanced age, smoking and multiparity were risk factors associated with incontinence. Incontinence reduced pregnant women's quality of life.

CONCLUSIONS

Lower urinary tract symptoms are commonly seen among pregnant women and these symptoms negatively affect the quality of life of pregnant women. Advanced age, smoking and multiparity were risk factors associated with urinary incontinence and LUTS. Obstetricians should be on the lookout for individual urological problems in pregnancy. Resolving any urological issues and cessation of smoking for the affected individuals will help alleviate the problem.

Comparison of low urinary tract symptoms during pregnancy between primiparous and multiparous women

BACKGROUND AND PURPOSE

Low urinary tract symptoms (LUTS) are a common problem during pregnancy. This study aimed to compare changes in the prevalence of LUTS during pregnancy between primiparous and multiparous women.

METHODS

A chart review of consecutive pregnant women who attended our antenatal clinic from March 2002 to January 2006 was performed. All of the women were asked to respond to a LUTS questionnaire in either of the three trimesters.

RESULTS

Of the 270 women included, 164 were nullipara and 106 were multipara. The most common LUTS during pregnancy were frequency (77%), followed by nocturia (75.6%), stress urinary incontinence (SUI) (51.1%), incomplete emptying (43.7%), dysuria (17.8%), and urgency incontinence (10.4%). There was a significantly higher prevalence of SUI (P<0.001) and urgency incontinence (P=0.005) in the multiparous compared to the nulliparous women. Increasing prevalence rates of frequency, nocturia, SUI, and incomplete emptying were reported with gestational age in both the nulliparous and multiparous women.

CONCLUSIONS

Frequency and nocturia were the two most common LUTS during pregnancy. The prevalence rates of all LUTS increased with increasing gestational age except for frequency in the nulliparous women during the second trimester. In addition, multipara was a predictor of SUI during pregnancy.

Stress urinary incontinence in pregnant women: a review of prevalence, pathophysiology, and treatment

INTRODUCTION AND HYPOTHESIS

Stress urinary incontinence (SUI) is the most common type of urinary incontinence (UI) in pregnant women and is known to have detrimental effects on the quality of life in approximately 54.3 %. Pregnancy is the main risk factor for the development of SUI. This review provides details of the pathophysiology leading to SUI in pregnant women and SUI prevalence and treatment during pregnancy.

METHODS

We conducted a PubMed search for English-language and human-study articles registered from January 1990 to September 2012. This search was performed for articles dealing with prevalence and treatment of SUI during pregnancy. In the intervention studies, we included studies that used a randomized controlled trial (RCT) design or studies comparing a treatment intervention to no treatment.

RESULTS

A total of 534 articles were identified; 174 full-text articles were reviewed, and 28 of them met eligibility criteria and are reported on here. The mean prevalence of SUI during pregnancy was 41 % (18.6-60 %) and increased with gestational age. The increasing pressure of the growing uterus and fetal weight on pelvic-floor muscles (PFM) throughout pregnancy, together with pregnancy-related hormonal changes, may lead to reduced PFM strength as well as their supportive and sphincteric function. These cause mobility of the bladder neck and urethra, leading to urethral sphincter incompetence. Pelvic floor muscle exercise (PFME) is a safe and effective treatment for SUI during pregnancy, without significant adverse effects.

CONCLUSIONS

Understanding these issues can be useful for health-care professionals when informing and counseling pregnant women to help prevent SUI during pregnancy and the postpartum period.

Pelvic floor muscle training for prevention and treatment of urinary and faecal incontinence in antenatal and postnatal women

BACKGROUND

About a third of women have urinary incontinence and up to a 10th have faecal incontinence after childbirth. Pelvic floor muscle training is commonly recommended during pregnancy and after birth both for prevention and the treatment of incontinence.

OBJECTIVES

To determine the effect of pelvic floor muscle training compared to usual antenatal and postnatal care on incontinence.

SEARCH METHODS

We searched the Cochrane Incontinence Group Specialised Register, which includes searches of CENTRAL, MEDLINE, MEDLINE in Process and handsearching (searched 7 February 2012) and the references of relevant articles.

SELECTION CRITERIA

Randomised or quasi-randomised trials in pregnant or postnatal women. One arm of the trial needed to include pelvic floor muscle training (PFMT). Another arm was either no PFMT or usual antenatal or postnatal care.

DATA COLLECTION AND ANALYSIS

Trials were independently assessed for eligibility and methodological quality. Data were extracted then cross checked. Disagreements were resolved by discussion. Data were processed as described in the Cochrane Handbook for Systematic Reviews of Interventions. Three different populations of women were considered separately, women dry at randomisation (prevention); women wet at randomisation (treatment); and a mixed population of women who might be one or the other (prevention or treatment). Trials were further divided into those which started during pregnancy (antenatal); and those started after delivery (postnatal).

MAIN RESULTS

Twenty-two trials involving 8485 women (4231 PFMT, 4254 controls) met the inclusion criteria and contributed to the analysis.Pregnant women without prior urinary incontinence (prevention) who were randomised to intensive antenatal PFMT were less likely than women randomised to no PFMT or usual antenatal care to report urinary incontinence up to six months after delivery (about 30% less; risk ratio (RR) 0.71, 95% CI 0.54 to 0.95, combined result of 5 trials).Postnatal women with persistent urinary incontinence (treatment) three months after delivery and who received PFMT were less likely than women who did not receive treatment or received usual postnatal care to report urinary incontinence 12 months after delivery (about 40% less; RR 0.60, 95% CI 0.35 to 1.03, combined result of 3 trials). It seemed that the more intensive the programme the greater the treatment effect.The results of seven studies showed a statistically significant result favouring PFMT in a mixed population (women with and without incontinence symptoms) in late pregnancy (RR 0.74, 95% CI 0.58 to 0.94, random-effects model). Based on the trial data to date, the extent to which mixed prevention and treatment approaches to PFMT in the postnatal period are effective is less clear (that is, offering advice on PFMT to all pregnant or postpartum women whether they have incontinence symptoms or not). It is possible that mixed prevention and treatment approaches might be effective when the intervention is intensive enough.There was little evidence about long-term effects for either urinary or faecal incontinence.

AUTHORS' CONCLUSIONS

There is some evidence that for women having their first baby, PFMT can prevent urinary incontinence up to six months after delivery. There is support for the widespread recommendation that PFMT is an appropriate treatment for women with persistent postpartum urinary incontinence. It is possible that the effects of PFMT might be greater with targeted rather than mixed prevention and treatment approaches and in certain groups of women (for example primiparous women; women who had bladder neck hypermobility in early pregnancy, a large baby, or a forceps delivery). These and other uncertainties, particularly long-term effectiveness, require further testing.

Effectiveness of a pelvic floor muscle exercise program on urinary incontinence following childbirth

EXECUTIVE SUMMARY: Objectives  The primary objective of this review was to determine, from the available evidence, the effectiveness of an antenatal and/or a post-natal program of pelvic floor muscle exercises (PFME) compared with usual care on preventing, reducing or resolving the incidence and severity of stress incontinence, urge incontinence or mixed stress and urge urinary incontinence following childbirth. Secondary objectives were included to examine the effectiveness of a PFME program on pelvic floor muscle strength and on encouraging adherence to an exercising program.

INCLUSION CRITERIA

TYPES OF STUDIES: Randomised controlled trials and non-randomised controlled trials were included in the review if, in relation to urinary incontinence, and/or adherence to a PFME program, and/or pelvic floor muscle strength, the following had been explored: • antenatal PFME compared with usual care; • post-natal PFME compared with usual care; • a PFME program compared with usual care. Usual care is commonly used to describe the care women normally receive from health professionals in the antenatal and/or post-natal period. In some cases usual care includes a standard information package given to all women attending the health service and in others it is advice about performing PFME.

TYPES OF PARTICIPANTS

Participants included women who experienced a spontaneous onset of labour and who subsequently delivered at more than 20 weeks gestation either vaginally, both spontaneous and assisted, or by non-elective caesarean section.

EXCLUSIONS

• women who delivered by elective caesarean section; • women experiencing post-partum overflow urinary incontinence.

TYPES OF INTERVENTIONS

1 Pelvic floor muscle exercises. 2 PFME instruction and a PFME program's components, such as educational materials, feedback (including biofeedback, e.g. information about strength of pelvic floor muscle contractions by various means) and number of PFME.

EXCLUSIONS

• electrical stimulation of pelvic floor muscles; • vaginal cones; or • other adjunct therapies. In studies that included a subgroup treated with one of these interventions, the results of the subgroup were excluded from the review's analysis.

TYPES OF OUTCOME MEASURES

Outcomes that were of interest: • non-occurrence of urinary incontinence following childbirth; • a change in the frequency, duration or severity (as appropriate) of urinary incontinence up to 12 months following childbirth. • a change in the strength of pelvic floor muscle contractions; • period of time PFME continued after initial instruction; • frequency of PFME undertaken; • women's awareness of the importance of PFME; • satisfaction with PFME instruction. Search strategy  All major electronic sources of information relevant to the topic (e.g. PubMed, CINAHL and the Cochrane Library) were searched to identify published and unpublished studies and previous work in the field. Printed journals were hand-searched and reference lists checked for potentially useful research. The review included any studies undertaken between 1981 and 2003. The search did not attempt to locate unpublished research before 1991. Assessment of quality  An independent Review Panel carried out quality assessment of studies. Two members of the panel, using quality assessment checklists developed for the review, reviewed each study. Disagreements between reviewers were resolved through discussion or a third reviewer examining a study. Data extraction and analysis  A data extraction tool was developed to extract data relating to participant characteristics, study methods, interventions and outcomes. Two reviewers independently extracted the required data. Randomised controlled trials included in the review were pooled in several meta-analyses using RevMan software program. Heterogeneity between studies was determined to ensure that they were sufficiently similar to allow for the pooling of their results. Non-randomised controlled trials were discussed in narrative comparisons. Results  Six randomised controlled trials met the inclusion criteria for the primary objective of the systematic review. The results of this review indicate that antenatal PFME and post-natal PFME are effective in resolving or reducing urinary incontinence following childbirth. There was insufficient evidence to conclude that PFME can prevent urinary incontinence in post-partum women. In most of these studies women were selected randomly and therefore included women without urinary incontinence and women with urinary incontinence. Two randomised controlled trials selected their sample on the criteria of existing post-partum urinary incontinence. A subgroup analysis of these studies showed that post-natal PFME also have a significant effect on reducing or resolving urinary incontinence in women with existing post-partum urinary incontinence. Seven randomised controlled trials and three non-randomised controlled trials met the inclusion criteria for the secondary objectives of the review. Findings of the studies included in the review suggest a PFME program will improve the frequency with which women perform PFME. Two studies found that women receiving the intervention (a PFME program) and who were performing PFME regularly in the month before data collection were significantly less likely to have any incontinence. The review's results support previous findings showing there is little evidence that a high-intensity PFME program is more effective than a low-intensity PFME regimen of exercising. No conclusions about the effectiveness of feedback to a woman about pelvic floor muscle strength, for example, perineometer measures, as part of a PFME program can be reached. The mixed results of this review mean that no conclusions can be reached about the effectiveness of a PFME program, antenatal or post-natal, on improving pelvic floor muscle strength. A number of studies reported a high percentage of women lost to follow-up and the data collected in most of the studies relied on self-reports relating to urinary incontinence and/or frequency of exercising. These factors may have affected the overall results of the review. However, wherever possible, tests for heterogeneity were carried out to determine if studies should be combined in meta-analyses and in other cases the results' limitations are acknowledged. Implications for practice  In terms of the effectiveness of PFME programs, the results of this review indicate that urinary incontinence following childbirth can be improved by performing PFME and that any form of a specific PFME program appears to improve exercising frequency. However, the value of individual components of PFME programs, such as take-home materials, reminder telephone calls and feedback of exercising effectiveness, is less clear. • Encourage women to undertake both antenatal and post-natal PFME (E1). • Pay particular attention to women with antenatal and post-natal urinary incontinence in providing advice and PFME instruction (E1). • To encourage adherence and continuation, PFME education programs should be multifaceted with a number of components, rather than only supplying an information booklet (E4). • Include PFME as a specific program in all antenatal and post-natal care, incorporating at least two individual instruction sessions into the program (E1). • Provide post-partum contact, particularly for those discharged early, either by telephone, electronic or home visits (E4). • Design pelvic floor muscle home exercise programs that are realistic given the demands on a mother and that can be incorporated into her daily routine in terms of number and frequency. Two or more training sessions per week are recommended (E4). • Health professionals working with women in the post-partum period should ask about symptoms of incontinence to ensure assistance is offered to those experiencing urinary incontinence (E4).

The impact of cesarean delivery on pelvic floor dysfunction in lysyl oxidase like-1 knockout mice

OBJECTIVE

: Lysyl oxidase like-1 (LOXL1) knockout mice have abnormal elastic fiber homeostasis and frequently develop pelvic floor dysfunction after pregnancy and delivery. The objective of this study was to test the hypothesis that tissue changes associated with vaginal delivery lead to pelvic floor dysfunction as a result of abnormal elastic fiber homeostasis.

METHODS

: Female LOXL1 knockout mice delivered either spontaneously or by cesarean delivery. Mice were assessed weekly for pelvic organ prolapse (POP). At 12 weeks postpartum, lower urinary tract function was assessed by cystometry and leak-point pressure testing. Urethrovaginal cross-sections were analyzed using a histologic grading scale to assess elastin fiber disorganization.

RESULTS

: A total of 39 mice delivered by spontaneous vaginal delivery and 36 by cesarean delivery. Twelve weeks after spontaneous vaginal delivery or cesarean delivery, 23 (59%) and 11 (31%) mice had developed POP, respectively. The mean time to develop POP was 7.2 weeks after spontaneous vaginal delivery and 10.5 weeks after cesarean delivery (log rank, P = 0.0008). The Cox proportional hazard ratio was 0.55 (95% confidence interval, 0.38-0.79). Mice with POP had increased frequency of bladder contractions not associated with voiding during cystometry (P = 0.02). POP, but not mode of delivery, was associated with increased elastic fiber disorganization.

CONCLUSIONS

: Cesarean delivery delays the development of POP in LOXL1 knockout mice. POP is associated with increased bladder contraction frequency and increased elastic fiber disorganization in the urethra and vagina. The mechanisms underlying these findings warrant further investigation.

Continence and pelvic floor status in nulliparous women at midterm pregnancy

INTRODUCTION AND HYPOTHESIS

A Cochrane review recommends antenatal pelvic floor muscle training (PFMT) in urinary incontinence (UI) prevention. The aim of the study was to investigate nulliparous pregnant women's knowledge about and practising of PFMT, their pelvic floor muscle (PFM) function, and ability to contract correctly. It was hypothesized that continent women had higher PFM strength and endurance than women with UI.

METHODS

Three hundred nulliparous women at gestational week 18-22 were included in a cross-sectional study. Vaginal resting pressure, maximum voluntary contraction, and PFM endurance were measured by manometer. UI was assessed by International Consultation on Incontinence Questionnaire Urinary Incontinence Short Form (ICIQ-UI-SF). Comparisons of PFM function in continent women and women with UI were analyzed using independent-samples t test. Mean differences with 95 % confidence interval (CI) are presented.

RESULTS

Of 300 women, 89 % had heard of PFMT at mid pregnancy, and 35 % performed PFMT once or more a week. After thorough instruction 4 % were unable to contract correctly. Thirty-five percent reported UI, of whom 48 % performed PFMT once or more a week. Continent women had significantly higher PFM strength and endurance when compared with women having UI, with mean differences of 6.6 cmH(2)O (CI 2.3-10.8, p = 0.003), and 41.5 cmH(2)Osec (CI 9.8-73.1, p = 0.010), respectively. No difference was found for vaginal resting pressure (p = 0.054).

CONCLUSIONS

Most nulliparous pregnant women knew about PFMT. Thirty-five percent performed PFMT once or more a week. Incontinent nulliparous pregnant women had weaker PFM than their continent counterparts. More emphasis on information regarding PFM function and PFMT is warranted during pregnancy.

Urinary incontinence in pregnant women and their quality of life

AIMS AND OBJECTIVES

The aim was to investigate the prevalence of urinary incontinence during pregnancy and the related risk factors as well as to assess its influence on the quality of life.

BACKGROUND

Although urinary incontinence is common during pregnancy and can have a substantial impact on quality of life, women rarely seek help for this symptom.

DESIGN

This study was designed as a cross-sectional and descriptive survey.

METHODS

A total of 393 pregnant women participated in the study between March and June 2007. The data was collected using the International Consultation on Incontinence Questionnaire Short Form and Wagner's quality of life scale. Potential risk factors were investigated through logistic regression analysis.

RESULTS

The prevalence of urinary incontinence was 27% (106/393). Factors significantly associated with urinary incontinence included age group, parity, previous urinary incontinence, constipation, urinary incontinence in mother and sister, previous urinary incontinence during pregnancy and postpartum.

CONCLUSION

According to the results of our study, urinary incontinence is common in women during pregnancy. The quality of life of pregnant women was found to be either unaffected or affected very little by urinary incontinence.

RELEVANCE TO CLINICAL PRACTICE

This study reveals that the prevalence of urinary incontinence during pregnancy is very high. The findings will help increase the awareness of health care workers involved in the care of pregnant women about urinary incontinence and aid the design of more intensive education programmes directed towards the prevention of urinary incontinence during pregnancy.

Suffering in silence: pregnant women's experience of urinary incontinence in Zaria, Nigeria

OBJECTIVE

To determine the prevalence and severity of urinary incontinence during pregnancy in Zaria, Nigeria.

STUDY DESIGN

This was a descriptive, cross-sectional study in which 204 apparently healthy pregnant women attending routine antenatal care (ANC) at the Ahmadu Bello University (ABU) Teaching Hospital in Zaria, Nigeria were screened for urinary incontinence using the International Consultation on Incontinence Questionnaire on Urinary Incontinence (ICIQ-UI Short Form) UK English Version. Nurses working in the antenatal clinic were trained on how to help respondents (most of whom were not literate) to respond to the questions. Uni- and bivariate analysis was performed on the data using SPSS version 15 for Windows.

RESULTS

The prevalence rate of all types of urinary incontinence during pregnancy was 21.1% in the study population. Stress urinary incontinence was the most common type accounting for 60.5%. The majority of the expectant mothers (74.4%) reported leaking no more than once a week; in 90% of them the volume was small in amount. The modal ICIQ score for urinary incontinence was 3 for the study population. The majority (83.4%) of the incontinent women felt their symptom did not interfere with their daily routines.

CONCLUSIONS

About one-fifth of pregnant women in this setting experienced urinary incontinence which they did not report to their primary care providers. Awareness needs to be created for antenatal clients and providers on how to recognize symptoms and manage them. The ICIQ questionnaire has simplified this process.

Obstetric risk factors for urinary incontinence and preventative pelvic floor exercises: Cohort study and nested randomized controlled trial

We conducted a cohort study assessing risk factors for developing urinary incontinence following childbirth, and a pilot randomized controlled trial of a physiotherapist-led intervention to reduce incidence of incontinence. A total of 723 women were recruited to the cohort study, of which 234 entered the nested trial and were randomized to intensive training in pelvic floor exercises or standard information. At 6 months post-partum, 45% of women reported some incontinence problems. A pre-existing incontinence problem was the best predictor of future incontinence (odds ratio 4.49, 95% confidence interval (CI) 3.09-6.53). Chronic constipation (1.86, 1.03-3.34) and episiotomy in at least one delivery (1.96, 1.25-3.07) were also independent risk factors, while an epidural or spinal (0.62, 0.42-0.92) was protective. The intervention as designed did not help in preventing future incontinence (relative risk 1.28, 95% CI 0.98-1.67), but this may be due to the failure to persuade the women to return for the classes. Any intervention aimed at promoting postnatal pelvic floor exercises should be limited to women who have already been experiencing incontinence problems.

The effect of urinary incontinence status during pregnancy and delivery mode on incontinence postpartum. A cohort study

Objective

The objectives of this study were to investigate prevalence of urinary incontinence at 6 months postpartum and to study how continence status during pregnancy and mode of delivery influence urinary incontinence at 6 months postpartum in primiparous women.

Design

Cohort study.

Setting

Pregnant women attending routine ultrasound examination were recruited to the Norwegian Mother and Child Cohort Study (MoBa).

Population

A total of 12 679 primigravidas who were continent before pregnancy.

Methods

Data are from MoBa, conducted by the Norwegian Institute of Public Health. Data are based on questionnaires answered at week 15 and 30 of pregnancy and 6 months postpartum.

Main outcome measures

Urinary incontinence 6 months postpartum is presented as proportions, odds ratios and relative risks (RRs).

Results

Urinary incontinence was reported by 31% of the women 6 months after delivery. Compared with women who were continent during pregnancy, incontinence was more prevalent 6 months after delivery among women who experienced incontinence during pregnancy (adjusted RR 2.3, 95% CI 2.2–2.4). Adjusted RR for incontinence after spontaneous vaginal delivery compared with elective caesarean section was 3.2 (95% CI 2.2–4.7) among women who were continent and 2.9 (95% CI 2.3–3.4) among women who were incontinent in pregnancy.

Conclusion

Urinary incontinence was prevalent 6 months postpartum. The association between incontinence postpartum and mode of delivery was not substantially influenced by incontinence status in pregnancy. Prediction of a group with high risk of incontinence according to mode of delivery cannot be based on continence status in pregnancy.

Prevalence of urinary incontinence and other urological problems during pregnancy: a questionnaire based study

OBJECTIVE

To find out the prevalence of various urological symptoms in pregnant women, the status before pregnancy, and their perceived impact.

METHODS

A questionnaire incorporating various urological problems was prepared and used over 240 pregnant women to know their prevalence in different trimesters of pregnancy and compare them with prevalence before pregnancy.

RESULTS

Increased urinary frequency (>10/day) (40.8 vs. 3.8%), nocturia (72.9 vs. 50.6%), burning micturition (21.3 vs. 3.8%), UTI (4.6 vs. 1.6%), urinary hesitancy (14.6 vs. 1.6%), urinary incontinence (25.8 vs. 8.2%) and botheration (22.1 vs. 2.7%) were seen during and before pregnancy, respectively. These also show an increment with advancement of gestation. Urinary incontinence was seen more often with advancing age and parity.

CONCLUSION

There is a very high prevalence of urological symptoms during pregnancy as compared to before pregnancy.

Pelvic floor muscle training for prevention and treatment of urinary and faecal incontinence in antenatal and postnatal women

BACKGROUND

About a third of women have urinary incontinence and up to a tenth have faecal incontinence after childbirth. Pelvic floor muscle training is commonly recommended during pregnancy and after birth both for prevention and treatment of incontinence.

OBJECTIVES

To determine the effect of pelvic floor muscle training compared to usual antenatal and postnatal care on incontinence.

SEARCH STRATEGY

We searched the Cochrane Incontinence Group Specialised Register (searched 24 April 2008) and the references of relevant articles.

SELECTION CRITERIA

Randomised or quasi-randomised trials in pregnant or postnatal women. One arm of the trials needed to include pelvic floor muscle training (PFMT). Another arm was either no pelvic floor muscle training or usual antenatal or postnatal care. The pelvic floor muscle training programmes were divided into either: intensive; or unspecified if training elements were lacking or information was not provided. Reasons for classifying as intensive included one to one instruction, checking for correct contraction, continued supervision of training, or choice of an exercise programme with sufficient exercise dose to strengthen muscle.

DATA COLLECTION AND ANALYSIS

Trials were independently assessed for eligibility and methodological quality. Data were extracted then cross checked. Disagreements were resolved by discussion. Data were processed as described in the Cochrane Handbook. Three different populations of women were considered separately: women dry at randomisation (prevention); women wet at randomisation (treatment); and a population-based approach in women who might be one or the other (prevention or treatment). Trials were further divided into: those which started during pregnancy (antenatal); and after delivery (postnatal).

MAIN RESULTS

Sixteen trials met the inclusion criteria. Fifteen studies involving 6181 women (3040 PFMT, 3141 controls) contributed to the analysis. Based on the trial reports, four trials appeared to be at low risk of bias, two at low to moderate risk, and the remainder at moderate risk of bias.Pregnant women without prior urinary incontinence who were randomised to intensive antenatal PFMT were less likely than women randomised to no PFMT or usual antenatal care to report urinary incontinence in late pregnancy (about 56% less; RR 0.44, 95% CI 0.30 to 0.65) and up to six months postpartum (about 30% less; RR 0.71, 95% CI 0.52 to 0.97).Postnatal women with persistent urinary incontinence three months after delivery and who received PFMT were less likely than women who did not receive treatment or received usual postnatal care (about 20% less; RR 0.79, 95% CI 0.70 to 0.90) to report urinary incontinence 12 months after delivery. It seemed that the more intensive the programme the greater the treatment effect. Faecal incontinence was also reduced at 12 months after delivery: women receiving PFMT were about half as likely to report faecal incontinence (RR 0.52, 95% CI 0.31 to 0.87).Based on the trial data to date, the extent to which population-based approaches to PFMT are effective is less clear (that is, offering advice on PFMT to all pregnant or postpartum women whether they have incontinence symptoms or not). It is possible that population-based approaches might be effective when the intervention is intensive enough.There was not enough evidence about long-term effects for either urinary or faecal incontinence.

AUTHORS' CONCLUSIONS

There is some evidence that PFMT in women having their first baby can prevent urinary incontinence in late pregnancy and postpartum. In common with older women with stress incontinence, there is support for the widespread recommendation that PFMT is an appropriate treatment for women with persistent postpartum urinary incontinence. It is possible that the effects of PFMT might be greater with targeted rather than population-based approaches and in certain groups of women (for example primiparous women; women who had bladder neck hypermobility in early pregnancy, a large baby, or a forceps delivery). These and other uncertainties, particularly long-term effectiveness, require further testing.

Prevalence and frequency of severity of urinary incontinence symptoms in late pregnancy: a prospective study in the north of Jordan

OBJECTIVE

To determine the frequency of urinary urge, stress incontinence and bothersome urinary symptoms in late pregnancy in Jordan.

METHOD

Women admitted in spontaneous labor to labor suite at three covering hospitals in the north of Jordan and at least 36 weeks gestational age were eligible for survey to ascertain data on current pregnancies and past pregnancy. Data analyzed for 181 women.

RESULT

Mean gestational age was 39.5 weeks. 85% had normal vaginal delivery. 35% of women reported symptoms of urgency, 30% of whom described symptoms frequency as moderate or severe, and 45% reported stress incontinence, 29% of whom described symptoms frequency as moderate or severe during the current pregnancy. Symptoms in previous pregnancies were reported by 20 and 30% of women for urge and stress incontinence, respectively. Urgency and urge incontinence increased in relation to parity.

CONCLUSION

The frequency of urinary incontinence and bothersome symptoms was relatively similar compared to other countries.

Urinary and anal incontinence in African American teenaged gravidas during pregnancy and the puerperium

STUDY OBJECTIVE

To determine the prevalence of urinary and anal incontinence during pregnancy and immediately postpartum in a convenience sample of African American teenaged women in an urban setting and to assess for an association between this incontinence and obstetrical risk factors.

METHODS

74 African American adolescents, ages 14-19, participated in the study. During third trimester prenatal visits and at 6 weeks postpartum, participants completed the Wexner Continence Grading Scale and Urogenital Distress Inventory Short Form (UDI-6). Chart abstraction was conducted for other relevant history.

RESULTS

Seventy-eight percent (58/74) of the adolescents were followed for the duration of the study; 22% were lost to follow-up. Incontinence was defined by a positive response on either questionnaire, irrespective of severity. In the third trimester, 44% of patients complained of urinary urge incontinence and 43% of stress incontinence; 12% complained of fecal and 41% of flatal incontinence. At six weeks postpartum, only 9% complained of urge incontinence and 5% of stress symptoms. Similarly, fecal incontinence decreased to 4% and flatal incontinence to 9%. Postpartum, the rate of flatal incontinence in the women who underwent instrumental deliveries was significantly increased when compared to those who had a spontaneous vaginal delivery or cesarean section (OR 12, P = 0.04).

CONCLUSION

Urinary and anal incontinence is present in this convenience sample of pregnant African American teenagers and should be addressed during pregnancy and the puerperium. Instrumental delivery significantly increased the risk of flatal incontinence postpartum in this population.

Risk factors for fecal and urinary incontinence after childbirth: the childbirth and pelvic symptoms study

OBJECTIVE

To identify risk factors for postpartum FI and UI.

METHODS

Secondary analysis of data from the CAPS study, which estimated the prevalence of postpartum FI and UI in primiparous women with clinically recognized anal sphincter tears after vaginal delivery, compared with women who delivered vaginally without recognized tears or by cesarean before labor. A total of 921 women were enrolled while in the hospital and 759 (82%) were interviewed by telephone 6 months postpartum. FI was assessed using the FISI and UI using the Medical, Epidemiological, and Social Aspects of Aging Questionnaire. FI risk factor analyses were conducted within each group, because of higher prevalence in the tear group. UI analyses were conducted with the groups combined.

RESULTS

In women with sphincter tears, FI at 6 months was associated with white race (OR 6.1, 95% CI 1.3-29.4), antenatal UI (OR 2.2, CI 1.1-4.3), 4th versus 3rd degree tear (OR 2.0, CI 1.0-4.0), older age at delivery (OR 1.6 per 5 yr, CI 1.2-2.1), and higher body mass index (BMI) (OR 1.3 per 5 kg/m(2), CI 1.0-1.7). No factors were associated with FI in the vaginal or cesarean control groups. Across all groups, risk factors for postpartum UI were antenatal UI (OR 3.5, CI 2.4-5.2), less education (OR 2.0, CI 1.4-2.8), and higher BMI (OR 1.2 per 5 kg/m(2), CI 1.1-1.4); cesarean delivery was protective (OR 0.5, CI 0.3-0.9).

CONCLUSIONS

Postpartum FI and UI are associated with few modifiable risk factors. However, the presence of antenatal UI and high BMI may help clinicians target at-risk women for early intervention.

Unassisted pelvic floor exercises for postnatal women: a systematic review

AIM

This paper is a report of a systematic review on unassisted pelvic floor exercises for postnatal stress incontinence to identify effective interventions and highlight areas for further research.

BACKGROUND

Stress incontinence is a common and embarrassing problem. Childbirth is a major cause and problems can be persistent for some. However women are often reluctant to seek help.

METHOD

We conducted a systematic literature search in December 2006 using the CINAHL, Medline and Cochrane Library databases, hand-searching of selected textbooks, checking reference lists and contacting experts. There were no date restrictions. The review included randomized controlled trials, published in English, of unassisted pelvic floor exercises in postnatal women. Two reviewers independently extracted data and assessed study quality. Main outcomes were reduction in symptoms of incontinence, patient satisfaction and quality of life.

RESULTS

Four randomized controlled trials met the inclusion criteria. Interventions ranged from written information to structured exercise classes, while usual care varied from a leaflet to group sessions with a midwife. Three out of four studies demonstrated short-term improvement in incontinence symptoms, which was statistically significant in two. However, at later follow-up there was no longer a statistically significant effect on continence. All trials found that women in the intervention group were more likely to do the exercises.

CONCLUSION

We found few trials, quality was variable, and comparisons were difficult because of variations in interventions and outcomes measured. Further high quality evaluations are needed, using standardized interventions and outcome measures, patient-relevant outcomes such as quality of life, and follow-up periods that enable evaluation of long-term effectiveness.

Adaptation and Use of Health Services by Primiparous Women With Urinary Incontinence

OBJECTIVES

To describe the use of health services by primiparous women with urinary incontinence by (a) examining the quality of life of these women and (b) describing the different predictors associated with their use of health services.

DESIGN AND SETTING

This correlative study is a secondary analysis of a broader epidemiologic study.

PARTICIPANTS

The 382 women identified as having urinary incontinence in the main epidemiologic study in Quebec, Canada.

MAIN OUTCOME MEASURES

Consultation rate; quality of life, predictors of quality of life, and use of health services; treatments received; and reasons for not seeking help.

RESULTS

Consultation rate was 11.1%. Many sociodemographic, clinical, and urinary incontinence factors were significantly associated with a decreased quality of life. Only frequency of nocturia, severe urinary incontinence, use of sanitary protection, and lower scores on the quality-of-life scale were significantly associated with differences in consultation rates. Physiotherapy was the most popular treatment received (71.4%). Most women with urinary incontinence did not consult because they considered urinary incontinence to be normal (47.3%).

CONCLUSIONS

Few women with urinary incontinence used health services for their urinary incontinence problem despite a decreased quality of life. Health professionals need to intervene early and promptly to help women with urinary incontinence deal more adequately with urinary incontinence and to inform women on how and where to seek help.

A cross-sectional study of knowledge and practice of pelvic floor exercises during pregnancy and associated symptoms of stress urinary incontinence in North-East Scotland

OBJECTIVES

to establish levels of knowledge about pelvic floor exercises during pregnancy; reported practice of pelvic floor exercises in pregnancy; and prevalence of stress urinary incontinence in a sample of women in the third trimester of pregnancy.

DESIGN

structured cross-sectional interview survey.

PARTICIPANTS

pregnant women over the age of 16 years and more than 30 weeks gestation attending antenatal clinics in North-East Scotland. Of 350 women who agreed to participate, 289 (82.6%) were interviewed between July 1999 and March 2000.

FINDINGS

225 women (77.9%) reported being given or obtaining information about pelvic floor exercises in the current pregnancy. Books were the most frequently mentioned source of information. Midwives were the health professionals most likely to give information about pelvic floor exercises. Younger women, first-time mothers and those from more deprived backgrounds were less likely to report having information about the exercises. A third of women (n=90, 31.1%) said that they would have liked more information about the exercises. Practice of the exercises during pregnancy was reported by just over half the sample (n=156, 54.0%) and more than once a day by 26.3% (n=76). Younger women, and those from more deprived backgrounds, were less likely to report the practice of exercises. No difference was found in reported practice according to parity. More than half (n=157, 54.3%) of the women reported incontinence during the current pregnancy. No relationship was found between reported practice of pelvic floor exercises and stress urinary incontinence.

KEY CONCLUSIONS AND IMPLICATIONS FOR PRACTICE

the number of women who indicated a desire for more information and the low number who reported practice of the exercises suggest that improvements could be made. The gaps in information provision and practice suggest areas for future health promotion about the exercises, particularly by midwives, as not all women are seen by a physiotherapist during pregnancy. Reported levels of incontinence during pregnancy confirm previous findings and highlight the prevalence of incontinence in pregnancy.

Cesarean Delivery on Maternal Request

OBJECTIVE

To review systematically the evidence about maternal and infant outcomes of cesarean delivery on maternal request and planned vaginal delivery.

DATA SOURCES

We searched MEDLINE, Cochrane Collaboration resources, and Embase and identified 1,406 articles through dual review using a priori inclusion criteria.

METHODS OF STUDY SELECTION

We included English language studies published from 1990 to June 2005 that compared the key reference group (cesarean delivery on maternal request or proxies) and planned vaginal delivery.

TABULATION, INTEGRATION, AND RESULTS

We identified 54 articles for maternal and infant outcomes. Virtually no studies exist on cesarean delivery on maternal request, so the knowledge base rests on indirect evidence from proxies with unique and significant limitations. Most studies compared outcomes by actual routes of delivery, resulting in variable relevance to planned routes of delivery. Primary cesarean delivery on maternal request and planned vaginal delivery likely differ with respect to individual outcomes; for instance, risks of urinary incontinence and maternal hemorrhage were lower with planned cesarean, whereas the risk of neonatal respiratory morbidity was higher and maternal length of stay was longer with planned cesarean delivery. However, our comprehensive assessment, across many outcomes, suggests no major differences between primary cesarean delivery on maternal request and planned vaginal delivery, but the evidence is too weak to conclude definitively that differences are completely absent. If a woman chooses to have a cesarean delivery in her first delivery, she is more likely to have subsequent deliveries by cesarean. With increasing numbers of cesarean delivery, risks occur with increasing frequency.

CONCLUSION

The evidence is significantly limited by its minimal relevance to primary cesarean delivery on maternal request. Future research requires developing consensus about terminology, creating a minimum data set for cesarean delivery on maternal request, improving study design and statistical analyses, attending to major outcomes and their special measurement issues, assessing both short- and long-term outcomes with better measurement strategies, dealing better with confounders, and considering the value or utility of different outcomes.

A longitudinal follow up of women in their practice of perinatal pelvic floor exercises and stress urinary incontinence in North-East Scotland

OBJECTIVES

to establish the reported practice of pelvic floor exercises and stress urinary incontinence after delivery.

DESIGN

a longitudinal study using a postnatal postal questionnaire.

PARTICIPANTS

257 women in the North-East of Scotland were sent questionnaires between June and December 2000, 6-12 months after delivery (previously recruited and interviewed during the last trimester of pregnancy). One hundred and sixty-three women responded (63.4%).

FINDINGS

more women reported the practice of pelvic floor exercises after delivery than during pregnancy: 134 (83.2%) compared with 123 (76.4%). Six to 12 months after delivery, 96 (60%) women said that they were still doing the exercises. A third of respondents (n=54, 33.1%) reported stress incontinence at some time since having the baby. Of those reporting incontinence at the time of questionnaire completion, six (19.3%) said the incontinence was moderate or severe, whereas eight (34.7%) reported incontinence once a week or more. Women who had an operative vaginal delivery (forceps or ventouse delivery) were more likely to report the practice of pelvic floor exercises than those having a spontaneous vaginal delivery. No significant difference was found in reported rates of stress incontinence between women who had different modes of delivery. The practice of pelvic floor exercises daily or more often during pregnancy was associated with less reported postnatal incontinence compared with less frequent practice.

KEY CONCLUSIONS

self-reported rates of practice of pelvic floor exercises increased from pregnancy to the immediate postnatal period and subsequently declined. A third of women reported the symptoms of stress incontinence after delivery. Daily or more frequent practice of the exercises during pregnancy may be required in order to prevent postnatal incontinence (although further research is required to confirm this finding).

IMPLICATIONS FOR PRACTICE

midwives should continue to encourage regular and frequent practice of pelvic floor exercises in the postnatal period and beyond. They also need to ask about symptoms of stress incontinence and refer as necessary.

Urinary incontinence: is cesarean delivery protective?

About half of all women develop transient urinary incontinence during pregnancy. Three months postpartum, the prevalence and incidence rates of urinary incontinence are 9% to 31% and 7% to 15%, respectively. Antenatal incontinence increases the risk of postpartum incontinence, which in turn increases the risk of long-term persistent incontinence. After the first delivery, women delivered vaginally have two-fold more incontinence than those delivered by cesarean. The protective effect of cesarean on urinary incontinence may dissipate after further deliveries, decreases with age, and is not present in older women. Data are mixed about whether cesarean done before labor confers greater protection than cesarean done after labor. To understand the true impact of cesarean delivery on urinary incontinence, future studies must compare incontinence by planned (not actual) delivery modes, consider a woman's entire reproductive career, focus on leakage severe enough to be problematic, consider other bladder symptoms as well as incontinence, and take into account other risk factors, particularly antepartum urinary incontinence.

Women's experience of revealing perinatal bladder function--implications for midwifery care

Comments of women engaged in a longitudinal study of urinary leaking from first trimester to 12 months following birth provide the data for this paper. Useful insights into the factors contributing to the maintenance of silence and ways to break the barriers to discussion of urinary incontinence before, during and following pregnancy were revealed. Given the prevalence of 30% of Australian women experiencing urinary leaking following pregnancy, it is imperative that midwives engage in discussion and support prevention of this unwelcome outcome of childbirth.

Urinary incontinence symptoms during and after pregnancy in continent and incontinent primiparas

OBJECTIVE

Examine patterns of urinary incontinence during and after pregnancy, as recalled by incontinent and continent primiparas.

STUDY DESIGN

Primiparous women reporting no pre-pregnancy incontinence, were recruited 6 to 9 months postpartum. Those reporting current continence and demonstrating a negative stress test were considered "Primiparous Continent" (PC, n=64). Those reporting current incontinence and demonstrating a positive stress test were considered "Primiparous Incontinent" (PI, n=57). Subjects self-administered a questionnaire recalling leakage during and after pregnancy.

RESULTS

Sixteen percent of PC women leaked during pregnancy. Of these, 70% experienced frequent leakage during pregnancy. Seventy-eight percent of PI women leaked both during and after pregnancy. Several patterns arose surrounding leakage frequency for PI women: 19% only leaked frequently during pregnancy, 4% only leaked frequently after pregnancy, and 51% leaked frequently both during and after pregnancy.

CONCLUSION

Nearly five times as many primiparous incontinent women, compared with primiparous continent women, leaked during pregnancy.

Leaking urine prior to pregnancy: a risk factor for postnatal incontinence

BACKGROUND

The prevalence of 30% for postnatal urinary incontinence is a major women's health issue. The majority of studies to date are retrospective, and evidence about contributing factors is inconsistent.

AIMS

To identify women at risk for postnatal urinary incontinence following the first pregnancy and birth.

STUDY POPULATION AND METHODS

One hundred and twenty four women participated in a longitudinal study. Questionnaires and interviews were conducted at 14, 24 and 38 weeks' gestation and 24-72 h, 6-8 weeks and 6-18 months postnatal. These, along with chart audits for pregnancy, labour and delivery factors and demographics, formed the database for logistic regression.

RESULTS

The only variable to emerge as a key indicator for predicting those women most at risk for developing postnatal urine leakage was a history of urinary leaking prior to the first pregnancy. Women with this history were 4.14 times more at risk of leaking urine 1 year after giving birth than women without previous urine leakage (P = 0.02). There was a pattern of leaking urine across the childbearing experience that suggests some resolution by 12 months regardless of parity. Length of second stage labour and method of delivery were the only labour and delivery variables to show significant differences between leaking and not leaking urine at 12 months postnatal.

CONCLUSION

Women who leak urine before their first pregnancy can be identified during early antenatal care as those at risk for postnatal urinary incontinence. Further research to test preventive measures is needed.

Postpartum Urinary and Anal Incontinence: A Population-Based Study of Quality of Life of Primiparous Women in Quebec

OBJECTIVE

To describe the quality of life of primiparous women with urinary or anal incontinence.

METHODS

A questionnaire was mailed at six months postpartum to 2492 primiparous women living in Quebec. The prevalence of urinary incontinence was assessed at six months postpartum through the FPSUND severity score index; the prevalence of anal incontinence was assessed by the grading system of Vaizey et al.; the quality of life of women who developed incontinence was assessed using the Shumaker's I-QOL for urinary incontinence and Lowry's quality of life instrument for anal incontinence. Descriptive analysis, t-test, analysis of variance, and linear regression were used.

RESULTS

The prevalence of urinary incontinence was 29.6% and of anal incontinence was 20.6%. Quality of life was affected significantly by the presence of urinary incontinence or both forms of incontinence (P 0.001) and by the type of urinary incontinence (P < 0.001). Women with all types of anal incontinence had significantly lower quality of life scores for access to toilet (P < 0.001), lifestyle (P < 0.01), self-esteem (P = 0.037), and total score (P < 0.001). Quality of life correlated with the severity of both urinary incontinence and anal incontinence: the more severe the urinary or anal incontinence, the lower the quality of life score.

CONCLUSION

Women who have urinary or anal incontinence, or both, have significant reductions in indicators of quality of life. Research is needed to evaluate strategies for preventing and treating these problems.

Effectiveness of a pelvic floor muscle exercise program on urinary incontinence following childbirth

OBJECTIVES

The primary objective of this review was to determine, from the available evidence, the effectiveness of an antenatal and/or a post-natal program of pelvic floor muscle exercises (PFME) compared with usual care on preventing, reducing or resolving the incidence and severity of stress incontinence, urge incontinence or mixed stress and urge urinary incontinence following childbirth. Secondary objectives were included to examine the effectiveness of a PFME program on pelvic floor muscle strength and on encouraging adherence to an exercising program.

INCLUSION CRITERIA

Randomised controlled trials and non-randomised controlled trials were included in the review if, in relation to urinary incontinence, and/or adherence to a PFME program, and/or pelvic floor muscle strength, the following had been explored:Usual care is commonly used to describe the care women normally receive from health professionals in the antenatal and/or post-natal period. In some cases usual care includes a standard information package given to all women attending the health service and in others it is advice about performing PFME.Participants included women who experienced a spontaneous onset of labour and who subsequently delivered at more than 20 weeks gestation either vaginally, both spontaneous and assisted, or by non-elective caesarean section.

EXCLUSIONS

1 Pelvic floor muscle exercises.2 PFME instruction and a PFME program's components, such as educational materials, feedback (including biofeedback, e.g. information about strength of pelvic floor muscle contractions by various means) and number of PFME.

EXCLUSIONS

In studies that included a subgroup treated with one of these interventions, the results of the subgroup were excluded from the review's analysis.Outcomes that were of interest: SEARCH STRATEGY: All major electronic sources of information relevant to the topic (e.g. PubMed, CINAHL and the Cochrane Library) were searched to identify published and unpublished studies and previous work in the field. Printed journals were hand-searched and reference lists checked for potentially useful research. The review included any studies undertaken between 1981 and 2003. The search did not attempt to locate unpublished research before 1991.

ASSESSMENT OF QUALITY

An independent Review Panel carried out quality assessment of studies. Two members of the panel, using quality assessment checklists developed for the review, reviewed each study. Disagreements between reviewers were resolved through discussion or a third reviewer examining a study.

DATA EXTRACTION AND ANALYSIS

A data extraction tool was developed to extract data relating to participant characteristics, study methods, interventions and outcomes. Two reviewers independently extracted the required data.Randomised controlled trials included in the review were pooled in several meta-analyses using RevMan software program. Heterogeneity between studies was determined to ensure that they were sufficiently similar to allow for the pooling of their results. Non-randomised controlled trials were discussed in narrative comparisons.

RESULTS

Six randomised controlled trials met the inclusion criteria for the primary objective of the systematic review. The results of this review indicate that antenatal PFME and post-natal PFME are effective in resolving or reducing urinary incontinence following childbirth. There was insufficient evidence to conclude that PFME can prevent urinary incontinence in post-partum women. In most of these studies women were selected randomly and therefore included women without urinary incontinence and women with urinary incontinence. Two randomised controlled trials selected their sample on the criteria of existing post-partum urinary incontinence. A subgroup analysis of these studies showed that post-natal PFME also have a significant effect on reducing or resolving urinary incontinence in women with existing post-partum urinary incontinence.Seven randomised controlled trials and three non-randomised controlled trials met the inclusion criteria for the secondary objectives of the review. Findings of the studies included in the review suggest a PFME program will improve the frequency with which women perform PFME. Two studies found that women receiving the intervention (a PFME program) and who were performing PFME regularly in the month before data collection were significantly less likely to have any incontinence. The review's results support previous findings showing there is little evidence that a high-intensity PFME program is more effective than a low-intensity PFME regimen of exercising. No conclusions about the effectiveness of feedback to a woman about pelvic floor muscle strength, for example, perineometer measures, as part of a PFME program can be reached.The mixed results of this review mean that no conclusions can be reached about the effectiveness of a PFME program, antenatal or post-natal, on improving pelvic floor muscle strength.A number of studies reported a high percentage of women lost to follow-up and the data collected in most of the studies relied on self-reports relating to urinary incontinence and/or frequency of exercising. These factors may have affected the overall results of the review. However, wherever possible, tests for heterogeneity were carried out to determine if studies should be combined in meta-analyses and in other cases the results' limitations are acknowledged.

IMPLICATIONS FOR PRACTICE

In terms of the effectiveness of PFME programs, the results of this review indicate that urinary incontinence following childbirth can be improved by performing PFME and that any form of a specific PFME program appears to improve exercising frequency. However, the value of individual components of PFME programs, such as take-home materials, reminder telephone calls and feedback of exercising effectiveness, is less clear.

Risk of postpartum urinary incontinence associated with pregnancy and mode of delivery

AIM

The aim was to estimate the postpartum urinary incontinence (PP UI) impact of precursory UI during pregnancy (PR UI) and delivery performed by cesarean section (CS) vs. vaginal childbirth (VC).

METHODS

Among the members of two population samples, in total 8610 women aged 20-59 years, 1232 had their first childbirth and 642 their second childbirth within 13-120 months prior to responding to a questionnaire that included information on PR UI occurrence, mode of delivery and PP UI occurrence.

RESULTS

CS was applied in 12.2% of first childbirths, and 87.8% thus delivered vaginally; PR UI during the pregnancy leading to the first childbirth was reported by 15.6%, and a total of 26.3% reported PP UI. An increased PP UI occurrence was reported following VC (28.3% vs. 12.0% in women undergoing CS, p < 0.001) and after PR UI (first childbirth, 66.7% vs. 18.8% in women not reporting PR UI, p < 0.0001). Among cases of PP UI following the first childbirth, 56.1% and 69.5% of cases could be attributed to PR UI and VC, respectively.

CONCLUSIONS

The highest PP UI risks were found among women complaining of PR UI, which manifested itself as a crucial, independent precursor of PP UI. Because of the high frequency of VC, more than seven out of 10 cases of UI following the first childbirth, however, seemed to be attributable to VC. The present data did not lend significant support to the assumption that the PP UI risk is also lowered after a subsequent delivery by CS.

Postpartum urinary incontinence

BACKGROUND

The aim of the present study was to identify prepregnancy, pregnancy and delivery correlates of urinary incontinence postpartum (PP UI) as reported by women in a cross-sectional population sample.

METHODS

A questionnaire-based cross-sectional survey was carried out in 1998 in a random population sample of 3900 20- to 59-year-old women. The present study includes 376 women who had their last delivery during 1993-96.

RESULTS

UI immediately after childbirth and 6 months thereafter was reported by 23.4% and 2.7%, respectively. PP UI was strongly associated with UI both before and during the present pregnancy, explaining 37.5% and 51.7% of postpartum UI, respectively. Eight percent experienced their first UI episode ever immediately after the delivery. Among women undergoing a cesarean section 8.8% reported postpartum UI, as contrasted with 24.9% in other women. Postpartum UI was positively associated with perineal suturing but un-associated with labor augmentation, episiotomy, birth weight, and breast-feeding.

CONCLUSION

In the present study, which included a comprehensive causal model, postpartum UI could be explained first of all as the decline of pregnancy UI, secondly as a manifestation of a pre-existing tendency to react by UI, and finally as a consequence of the birth process itself.

Prevalence and persistence of health problems after childbirth: associations with parity and method of birth

BACKGROUND

Awareness about the extent of maternal physical and emotional health problems after childbirth is increasing, but few longitudinal studies examining their duration have been published. The aim of this study was to describe changes in the prevalence of maternal health problems in the 6 months after birth and their association with parity and method of birth.

METHODS

A population-based, cohort study was conducted in the Australian Capital Territory (ACT), Australia. The study population, comprising women who gave birth to a live baby from March to October 1997, completed 4 questionnaires on the fourth postpartum day, and at 8, 16, and 24 weeks postpartum. Outcome measures were self-reported health problems during each of the three 8-week postpartum periods up to 24 weeks.

RESULTS

A total of 1295 women participated, and 1193 (92) completed the study. Health problems showing resolution between 8 and 24 weeks postpartum were exhaustion/extreme tiredness (60-49), backache (53-45), bowel problems (37-17), lack of sleep/baby crying (30-15), hemorrhoids (30-13), perineal pain (22-4), excessive/prolonged bleeding (20-2), urinary incontinence (19-11), mastitis (15-3), and other urinary problems (5-3). No significant changes occurred in the prevalence of frequent headaches or migraines, sexual problems, or depression over the 6 months. Adjusting for method of birth, primiparas were more likely than multiparas to report perineal pain and sexual problems. Compared with unassisted vaginal births, women who had cesarean sections reported more exhaustion, lack of sleep, and bowel problems; reported less perineal pain and urinary incontinence in the first 8 weeks; and were more likely to be readmitted to hospital within 8 weeks of the birth. Women with forceps or vacuum extraction reported more perineal pain and sexual problems than those with unassisted vaginal births after adjusting for parity, perineal trauma, and length of labor.

CONCLUSIONS

Health problems commonly occurred after childbirth with some resolution over the 6 months postpartum. Some important differences in prevalence of health problems were evident when parity and method of birth were considered.