Randomised controlled trial comparing early home biofeedback physiotherapy with pelvic floor exercises for the treatment of third-degree tears (EBAPT Trial)

Pelvic floor muscle training with biofeedback or feedback from a physiotherapist for urinary and anal incontinence after childbirth - a systematic review

BACKGROUND

Childbirth is one of the biggest risk factors for incontinence. Urinary and anal incontinence can cause pain and social limitations that affect social life, cohabitation, and work. There is currently no up-to-date literature study on the effect of pelvic floor muscle training with feedback from a physiotherapist, which involves verbal instructions based on vaginal and anal digital palpation, compared to treatment without feedback (e.g., recommendations for pelvic floor muscle training).

AIM

The objective of this systematic review was to examine the scientific evidence regarding the impact of pelvic floor muscle training (PFMT) with feedback from a physiotherapist and/or biofeedback on urinary and anal incontinence in women during the first six months following vaginal delivery, compared to treatment without feedback.

METHODS

The literature search was conducted in the databases PubMed, Cochrane, and CINAHL. In addition, a manual search was conducted. The search terms consisted of MeSH terms and synonyms in the respective search block including population, intervention, and study design, as well as the terms pelvic floor and postpartum. An evaluation of each included study was conducted for methodological quality, evidence value, and clinical relevance.

RESULTS

Eight studies were included, three of which showed a significant difference between groups, in favor of the intervention group that received pelvic floor muscle training with feedback from a physiotherapist and/or biofeedback. Due to the varying results and insufficient quality for the majority of the studies, the scientific basis was considered insufficient.

CONCLUSION

The scientific evidence for pelvic floor muscle training with feedback from a physiotherapist or biofeedback on postpartum urinary and anal incontinence compared to treatment without feedback is considered insufficient. Further research on the subject is needed. The study is registered in PROSPERO CRD42022361296.

Management of Third and Fourth-Degree Perineal Tears After Vaginal Birth. Guideline of the DGGG, OEGGG and SGGG (S2k-Level, AWMF Registry No. 015/079, December 2020)

Purpose This guideline provides recommendations for the diagnosis, treatment and follow-up care of 3rd and 4th degree perineal tears which occur during vaginal birth. The aim is to improve the management of 3rd and 4th degree perineal tears and reduce the immediate and long-term damage. The guideline is intended for midwives, obstetricians and physicians involved in caring for high-grade perineal tears.

Methods A selective search of the literature was carried out. Consensus about the recommendations and statements was achieved as part of a structured process during a consensus conference with neutral moderation.

Recommendations After every vaginal birth, a careful inspection and/or palpation by the obstetrician and/or the midwife must be carried out to exclude a 3rd or 4th degree perineal tear. Vaginal and anorectal palpation is essential to assess the extent of birth trauma. The surgical team must also include a specialist physician with the appropriate expertise (preferably an obstetrician or a gynecologist or a specialist for coloproctology) who must be on call. In exceptional cases, treatment may also be delayed for up to 12 hours postpartum to ensure that a specialist is available to treat the individual layers affected by trauma. As neither the end-to-end technique nor the overlapping technique have been found to offer better results for the management of tears of the external anal sphincter, the surgeon must use the method with which he/she is most familiar. Creation of a bowel stoma during primary management of a perineal tear is not indicated. Daily cleaning of the area under running water is recommended, particularly after bowel movements. Cleaning may be carried out either by rinsing or alternate cold and warm water douches. Therapy should also include the postoperative use of laxatives over a period of at least 2 weeks. The patient must be informed about the impact of the injury on subsequent births as well as the possibility of anal incontinence.

3rd and 4th degree perineal tears that occurs during vaginal delivery

Objective: Perineal injuries are common in vaginal delivery. In this study, we aimed to investigate the factors affecting the degree of perineal injury and the effect of injury degree on incontinence. Methods: Fifteen patients, underwent sphincter repair by the general surgery unit, who had perineal tear during normal vaginal delivery between January 2018 and March 2019 in our hospital and were retrospectively evaluated. Those with grade 3a and 3b perineal tears were divided into 2 groups as group-1, and those with grade 3c and grade 4 perineal tears as group-2. Episiotomy type, fetal characteristics [head circumference and birth weight], early postoperative continence findings were compared in between groups. Results: The average age of the patients was 30 ± 8.7 years. When the groups were compared, there was no significant superiority of episiotomy in terms of perineal injury (p=0.07). 4 patients had 3a, 3 patients had 3b, 6 patients had 3c and 2 patients had fourth-degree perineal injuries. The average birth weight of the newborns was 3438 ± 492 g, and the head circumference was 34.33 ± 1.23 cm. There was no significant difference in incontinence between the groups (p=0.55). Conclusıon: The treatment of anorectal injuries is surgery. The method of treatment varies according to the time elapsed between injury and intervention, fecal contamination, degree of injury, general condition of the patient, presence of accompanying injury, experience and preference of surgeon. We think that sphincter damage during delivery can be looked after successfully with early diagnosis and intervention before tissue edema develops.

Patient-reported outcomes and outcome measures in childbirth perineal trauma research: a systematic review

INTRODUCTION AND HYPOTHESIS

In evaluating the effectiveness of interventions in perineal trauma research, outcomes reported by patients should have a prominent focus. There is no international consensus regarding the use of either patient-reported outcomes (PROs) or tools used to determine these outcomes (patient-reported outcome measures, PROMs). The objective was to evaluate the selection, reporting and geographical variations of PROs and PROMs in randomised controlled trials (RCTs) on perineal trauma.

METHODS

We performed a systematic review of RCTs in perineal trauma research evaluating outcome and outcome measure reporting. We identified PROs and PROMs and grouped PROs into domains and themes, a classification system based on a medical outcome taxonomy.

RESULTS

Of 48 included RCTs, 47 reported PROs. In total, we identified 51 PROs. Outcome reporting consistency was low, with 27 PROs reported only once. Nine PROs were reported more than five times, the most frequent being perineal pain, with no geographical variation in reporting. Four themes encompassing 12 domains were identified. The most frequently reported theme was "Clinical", with 25 PROs grouped within four domains. "Resource use" and "Adverse events" themes were rarely reported, with only five PROs. PROMs also exhibited variation. Most common were visual analogue scale (VAS; 100 mm), Cleveland Clinic Continence Score, The Faecal Incontinence Quality of Life scale, VAS (0-10) and the McGill Pain Questionnaire.

CONCLUSIONS

Significant heterogeneity in PROs and PROMs was observed among RCTs. Despite inconsistency, PROs are the most prevalent outcome in perineal trauma research. Patient-reported adverse events are underreported. Their use in determining the effectiveness and safety of interventions makes their integration important in perineal trauma core outcome sets. Identification and grouping of outcomes will assist future core outcome consensus studies.

Clinical Guidelines for Female Lower Urinary Tract Symptoms (second edition)

The present article is an abridged English translation of the Japanese Clinical Guidelines for Female Lower Urinary Tract Symptoms (second edition), published in September 2019. These guidelines consist of a total of 212 pages and are unique worldwide in that they cover female lower urinary tract symptoms other than urinary incontinence. They contain two algorithms for "primary treatment" and "specialized treatment," respectively. These guidelines, consisting of six chapters, address a total of 26 clinical questions including: (i) treatment algorithms; (ii) what are female lower urinary tract symptoms?; (iii) epidemiology and quality of life; (iv) pathology and illness; (v) diagnosis; and (vi) treatment. When the patient's symptoms mainly involve voiding and post-micturition symptoms, specialized treatment should be considered. In the event of voiding symptoms concurrent with storage symptoms, residual urine should be measured; if the residual urine volume is <100 mL, then diagnosis and treatment for storage symptoms is prioritized, and if the volume is ≥100 mL, then specialized treatment should be considered. When storage symptoms are the primary condition, then the patient is subject to the primary treatment algorithm. Specialized treatment for refractory overactive bladder includes botulinum toxin injection and sacral nerve stimulation. For stress urinary incontinence, surgical treatment is indicated, such as urethral slings. The two causes of voiding symptoms and post-micturition symptoms are lower urinary tract obstruction and detrusor underactivity (underactive bladder). Mechanical lower urinary tract obstruction, such as pelvic organ prolapse, is expected to improve with surgery.

Pelvic-Floor Dysfunction Prevention in Prepartum and Postpartum Periods

Every woman needs to know about the importance of the function of pelvic-floor muscles and pelvic organ prolapse prevention, especially pregnant women because parity and labor are the factors which have the biggest influence on having pelvic organ prolapse in the future. In this article, we searched for methods of training and rehabilitation in prepartum and postpartum periods and their effectiveness. The search for publications in English was made in two databases during the period from August 2020 to October 2020 in Cochrane Library and PubMed. 77 articles were left in total after selection-9 systematic reviews and 68 clinical trials. Existing full-text papers were reviewed after this selection. Unfinished randomized clinical trials, those which were designed as strategies for national health systems, and those which were not pelvic-floor muscle-training-specified were excluded after this step. Most trials were high to moderate overall risk of bias. Many of reviews had low quality of evidence. Despite clinical heterogeneity among the clinical trials, pelvic-floor muscle training shows promising results. Most of the studies demonstrate the positive effect of pelvic-floor muscle training in prepartum and postpartum periods on pelvic-floor dysfunction prevention, in particular in urinary incontinence symptoms. However more high-quality, standardized, long-follow-up-period studies are needed.

Obstetric risk factors for anorectal dysfunction after delivery: a systematic review and meta-analysis

INTRODUCTION AND HYPOTHESIS

Pregnancy and childbirth are considered risk factors for pelvic floor dysfunction, including anorectal dysfunction. We aimed to assess the effect of obstetric events on anal incontinence and constipation after delivery.

METHODS

We systematically reviewed the literature by searching MEDLINE, Embase and CENTRAL. We included studies in women after childbirth examining the association between obstetric events and anorectal dysfunction assessed through validated questionnaires. We selected eligible studies and clustered the data according to the type of dysfunction, obstetric event and interval from delivery. We assessed risk of bias using the Newcastle Ottawa Scale and we performed a random-effects meta-analysis and reported the results as odds ratios (ORs) with their 95% confidence intervals. Heterogeneity across studies was assessed using I² statistics.

RESULTS

Anal sphincter injury (OR: 2.44 [1.92-3.09]) and operative delivery were risk factors for anal incontinence (forceps-OR :1.35 [1.12-1.63]; vacuum-OR: 1.17 [1.04-1.31]). Spontaneous vaginal delivery increased the risk of anal incontinence compared with caesarean section (OR: 1.27 [1.07-1.50]). Maternal obesity (OR:1.48 [1.28-1.72]) and advanced maternal age (OR: 1.56 [1.30-1.88]) were risk factors for anal incontinence. The evidence on incontinence is of low certainty owing to the observational nature of the studies. No evidence was retrieved regarding constipation after delivery because of a lack of standardised validated assessment tools.

CONCLUSIONS

Besides anal sphincter injury, forceps delivery, maternal obesity and advanced age were associated with higher odds of anal incontinence, whereas caesarean section is protective. We could not identify obstetric risk factors for postpartum constipation, as few prospective studies addressed this question and none used a standardised validated questionnaire.

Physiotherapy for Prevention and Treatment of Fecal Incontinence in Women-Systematic Review of Methods

Fecal incontinence (FI) affects approximately 0.25-6% of the population, both men and women. The most common causes of FI are damage to/weakness of the anal sphincter muscle and/or pelvic floor muscles, as well as neurological changes in the central or peripheral nervous system. The purpose of this study is to report the results of a systematic review of the possibilities and effectiveness of physiotherapy techniques for the prevention and treatment of FI in women. For this purpose, the PubMed, Embase, and Web of Science databases were searched for 2000-2020. A total of 22 publications qualified for detailed analysis. The studies showed that biofeedback (BF), anal sphincter muscle exercises, pelvic floor muscle training (PFMT), and electrostimulation (ES) are effective in relieving FI symptoms, as reflected in the International Continence Society recommendations (BF: level A; PFMT and ES: level B). Research has confirmed that physiotherapy, by improving muscle strength, endurance, and anal sensation, is beneficial in the prevention of FI, both as an independent method of conservative treatment or in pre/post-surgery treatment. Moreover, it can significantly improve the quality of life of patients. In conclusion, physiotherapy (in particular, BF, PFMT, or ES, as effective methods) should be one of the key elements in the comprehensive therapy of patients with FI.

Tools for fecal incontinence assessment: lessons for inflammatory bowel disease trials based on a systematic review

BACKGROUND

Fecal incontinence is a disabling condition affecting up to 20% of women.

OBJECTIVE

We investigated fecal incontinence assessment in both inflammatory bowel disease and non-inflammatory bowel disease patients to propose a diagnostic approach for inflammatory bowel disease trials.

METHODS

We searched on Pubmed, Embase and Cochrane Library for all studies on adult inflammatory bowel disease and non-inflammatory bowel disease patients reporting data on fecal incontinence assessment from January 2009 to December 2019.

RESULTS

In total, 328 studies were included; 306 studies enrolled non-inflammatory bowel disease patients and 22 studies enrolled inflammatory bowel disease patients. In non-inflammatory bowel disease trials the most used tools were the Wexner score, fecal incontinence quality of life questionnaire, Vaizey score and fecal incontinence severity index (in 187, 91, 62 and 33 studies). Anal manometry was adopted in 41.2% and endoanal ultrasonography in 34.0% of the studies. In 142 studies (46.4%) fecal incontinence evaluation was performed with a single instrument, while in 64 (20.9%) and 100 (32.7%) studies two or more instruments were used. In inflammatory bowel disease studies the Wexner score, Vaizey score and inflammatory bowel disease quality of life questionnaire were the most commonly adopted tools (in five (22.7%), five (22.7%) and four (18.2%) studies). Anal manometry and endoanal ultrasonography were performed in 45.4% and 18.2% of the studies.

CONCLUSION

Based on prior validation and experience, we propose to use the Wexner score as the first step for fecal incontinence assessment in inflammatory bowel disease trials. Anal manometry and/or endoanal ultrasonography should be taken into account in the case of positive questionnaires.

Pelvic floor muscle training for preventing and treating urinary and faecal incontinence in antenatal and postnatal women

BACKGROUND

About one-third of women have urinary incontinence (UI) and up to one-tenth have faecal incontinence (FI) after childbirth. Pelvic floor muscle training (PFMT) is commonly recommended during pregnancy and after birth for both preventing and treating incontinence. This is an update of a Cochrane Review previously published in 2017.

OBJECTIVES

To assess the effects of PFMT for preventing or treating urinary and faecal incontinence in pregnant or postnatal women, and summarise the principal findings of relevant economic evaluations.

SEARCH METHODS

We searched the Cochrane Incontinence Specialised Register, which contains trials identified from the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, MEDLINE In-Process, MEDLINE Epub Ahead of Print, CINAHL, ClinicalTrials.gov, WHO ICTRP, and handsearched journals and conference proceedings (searched 7 August 2019), and the reference lists of retrieved studies.

SELECTION CRITERIA

We included randomised or quasi-randomised trials in which one arm included PFMT. Another arm was no PFMT, usual antenatal or postnatal care, another control condition, or an alternative PFMT intervention. Populations included women who, at randomisation, were continent (PFMT for prevention) or incontinent (PFMT for treatment), and a mixed population of women who were one or the other (PFMT for prevention or treatment).

DATA COLLECTION AND ANALYSIS

We independently assessed trials for inclusion and risk of bias. We extracted data and assessed the quality of evidence using GRADE.

MAIN RESULTS

We included 46 trials involving 10,832 women from 21 countries. Overall, trials were small to moderately-sized. The PFMT programmes and control conditions varied considerably and were often poorly described. Many trials were at moderate to high risk of bias. Two participants in a study of 43 pregnant women performing PFMT for prevention of incontinence withdrew due to pelvic floor pain. No other trials reported any adverse effects of PFMT. Prevention of UI: compared with usual care, continent pregnant women performing antenatal PFMT probably have a lower risk of reporting UI in late pregnancy (62% less; risk ratio (RR) 0.38, 95% confidence interval (CI) 0.20 to 0.72; 6 trials, 624 women; moderate-quality evidence). Antenatal PFMT slightly decreased the risk of UI in the mid-postnatal period (more than three to six months' postpartum) (29% less; RR 0.71, 95% CI 0.54 to 0.95; 5 trials, 673 women; high-quality evidence). There was insufficient information available for the late postnatal period (more than six to 12 months) to determine effects at this time point (RR 1.20, 95% CI 0.65 to 2.21; 1 trial, 44 women; low-quality evidence). Treatment of UI: compared with usual care, there is no evidence that antenatal PFMT in incontinent women decreases incontinence in late pregnancy (very low-quality evidence), or in the mid-(RR 0.94, 95% CI 0.70 to 1.24; 1 trial, 187 women; low-quality evidence), or late postnatal periods (very low-quality evidence). Similarly, in postnatal women with persistent UI, there is no evidence that PFMT results in a difference in UI at more than six to 12 months postpartum (RR 0.55, 95% CI 0.29 to 1.07; 3 trials; 696 women; low-quality evidence). Mixed prevention and treatment approach to UI: antenatal PFMT in women with or without UI probably decreases UI risk in late pregnancy (22% less; RR 0.78, 95% CI 0.64 to 0.94; 11 trials, 3307 women; moderate-quality evidence), and may reduce the risk slightly in the mid-postnatal period (RR 0.73, 95% CI 0.55 to 0.97; 5 trials, 1921 women; low-quality evidence). There was no evidence that antenatal PFMT reduces the risk of UI at late postpartum (RR 0.85, 95% CI 0.63 to 1.14; 2 trials, 244 women; moderate-quality evidence). For PFMT started after delivery, there was uncertainty about the effect on UI risk in the late postnatal period (RR 0.88, 95% CI 0.71 to 1.09; 3 trials, 826 women; moderate-quality evidence). Faecal incontinence: eight trials reported FI outcomes. In postnatal women with persistent FI, it was uncertain whether PFMT reduced incontinence in the late postnatal period compared to usual care (very low-quality evidence). In women with or without FI, there was no evidence that antenatal PFMT led to a difference in the prevalence of FI in late pregnancy (RR 0.64, 95% CI 0.36 to 1.14; 3 trials, 910 women; moderate-quality evidence). Similarly, for postnatal PFMT in a mixed population, there was no evidence that PFMT reduces the risk of FI in the late postnatal period (RR 0.73, 95% CI 0.13 to 4.21; 1 trial, 107 women, low-quality evidence). There was little evidence about effects on UI or FI beyond 12 months' postpartum. There were few incontinence-specific quality of life data and little consensus on how to measure it.

AUTHORS' CONCLUSIONS

This review provides evidence that early, structured PFMT in early pregnancy for continent women may prevent the onset of UI in late pregnancy and postpartum. Population approaches (recruiting antenatal women regardless of continence status) may have a smaller effect on UI, although the reasons for this are unclear. A population-based approach for delivering postnatal PFMT is not likely to reduce UI. Uncertainty surrounds the effects of PFMT as a treatment for UI in antenatal and postnatal women, which contrasts with the more established effectiveness in mid-life women. 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. Hypothetically, for instance, women with a high body mass index (BMI) are at risk of UI. Such uncertainties require further testing and data on duration of effect are also needed. The physiological and behavioural aspects of exercise programmes must be described for both PFMT and control groups, and how much PFMT women in both groups do, to increase understanding of what works and for whom. Few data exist on FI and it is important that this is included in any future trials. It is essential that future trials use valid measures of incontinence-specific quality of life for both urinary and faecal incontinence. In addition to further clinical studies, economic evaluations assessing the cost-effectiveness of different management strategies for FI and UI are needed.

ACOG Practice Bulletin No. 198: Prevention and Management of Obstetric Lacerations at Vaginal Delivery

Lacerations are common after vaginal birth. Trauma can occur on the cervix, vagina, and vulva, including the labial, periclitoral, and periurethral regions, and the perineum. Most of these lacerations do not result in adverse functional outcomes. Severe perineal lacerations, extending into or through the anal sphincter complex, although less frequent, are more commonly associated with increased risk of pelvic floor injury, fecal and urinary incontinence, pain, and sexual dysfunction with symptoms that may persist or be present many years after giving birth. The purpose of this document is to provide evidence-based guidelines for the prevention, identification, and repair of obstetric lacerations and for episiotomy.

Electromyographic Biofeedback in Motor Function Recovery After Peripheral Nerve Injury: An Integrative Review of the Literature

Electromyographic biofeedback (EMG-BF) has been applied to treat different types of peripheral nerve injuries (PNI). However, despite the clinical practice widespread use its evidence is controversial. With the objective of summarize the available evidence on the electromyographic biofeedback effectiveness and efficacy to help motor function recovery after PNI an integrative review was performed. A secondary objective was to identify the conceptual framework and strategies of EMG-BF intervention, and the quality of technical description of EMG-BF procedures. To conduct this integrative review a systematic search of the literature was performed between October 2013 and July 2018, in PUBMED, ISI and COCHRANE databases for EMG-BF original studies in PNI patients of any etiology, in English, Portuguese, Spanish or French, published after 1990. Exclusion criteria were poor description of EMG-BF treatment, associated treatment that could impair EMG-BF effect, inclusion of non-PNI individuals and case studies design. The PEDro scale was used to evaluate study quality of randomized clinical trials (RCTs) included. This resulted in 71 potential articles enrolled to full reading, although only nine matched the inclusion criteria. PNI included facial paralysis, acute sciatic inflammation and carpal tunnel syndrome. The average quality score of the included RCTs was five, corresponding to low methodological quality. Due to the small number of included articles, low quality studies and heterogeneity of interventions, outcomes and population we concluded that there is limited evidence of EMG-BF effectiveness and efficacy for motor function recovery in PNI patients.

Non-surgical acute traumatic perianal injuries

Objectives

The diagnosis of fecal incontinence is challenging and complex. One of the most significant causes of fecal incontinence is trauma in the perianal area. The most important cause of such trauma is birth trauma. It is hard to evaluate patients and plan treatment. Surgical method is determined by the severity of sphincter damage and injuries formed in the organs in the perianal area. The aim of this study, therefore, was to analyze the cases of patients who had undergone sphincter repair because of acute injuries in the perianal area.

Material and Methods

The cases of 15 patients with perianal area injuries who had presented to Necmettin Erbakan University Meram Medical School's General Surgery Clinic between 2010 and 2015 were retrospectively analyzed. Data on age, sex, form of injury, severity of injury, time of first response, form of repair, injury problems, and post-operative complications of the patients were investigated. The patients' long-term results were analyzed.

Results

While 5 of the patients were male, 10 were female. 9 of the female patients had birth trauma, while one had injury during sexual intercourse. While all of the patients received sphincteroplasty, 10 had levatoroplasty. All the female patients received vaginoplasty.

Conclusion

We are of the opinion that it is significant to have surgical intervention before tissue edema develops.

Do we need a core outcome set for childbirth perineal trauma research? A systematic review of outcome reporting in randomised trials evaluating the management of childbirth trauma

BACKGROUND

Selecting appropriate outcomes to reflect both beneficial and harmful effects is a critical step in designing childbirth trauma trials.

OBJECTIVE

To evaluate the outcomes and outcome measures reported in randomised controlled trials evaluating interventions for childbirth trauma.

SEARCH STRATEGY

Randomised trials were identified by searching bibliographical databases including the Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, and EMBASE.

SELECTION CRITERIA

Randomised trials evaluating the efficacy and safety of different techniques in the management of perineal lacerations.

DATA COLLECTION AND ANALYSIS

Two researchers independently assessed studies for inclusion, evaluated methodological quality, and extracted the relevant data. Spearman's ρ correlation and multivariate linear regression analysis using the backward stepwise model were used for analysis.

MAIN RESULTS

Forty-eight randomised trials, reporting data from 20 308 women, were included. Seventeen different interventions were evaluated. Included trials reported 77 different outcomes and 50 different outcome measures. Commonly reported outcomes included pain (34 trials; 70%), wound healing (20 trials; 42%), and anorectal dysfunction (16 trials, 33%). In the multivariate analysis, no relationship was demonstrated between the quality of outcome reporting and year of publication (P = 0.31), journal impact factor (P = 0.49), and methodological quality (P = 0.13).

CONCLUSION

Outcome reporting in childbirth trauma research is heterogeneous. Developing, disseminating, and implementing a core outcome set in future childbirth trauma research could help address these issues.

TWEETABLE ABSTRACT

Developing @coreoutcomes for childbirth trauma research could help to reduce #research waste.

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

BACKGROUND

About one-third of women have urinary incontinence and up to one-tenth have faecal incontinence after childbirth. Pelvic floor muscle training (PFMT) is commonly recommended during pregnancy and after birth for both prevention and treatment of incontinence.This is an update of a review previously published in 2012.

OBJECTIVES

To determine the effectiveness of pelvic floor muscle training (PFMT) in the prevention or treatment of urinary and faecal incontinence in pregnant or postnatal women.

SEARCH METHODS

We searched the Cochrane Incontinence Specialised Register (16 February 2017) and reference lists of retrieved studies.

SELECTION CRITERIA

Randomised or quasi-randomised trials in pregnant or postnatal women. One arm of the trial included PFMT. Another arm was no PFMT, usual antenatal or postnatal care, another control condition, or an alternative PFMT intervention.

DATA COLLECTION AND ANALYSIS

Review authors independently assessed trials for inclusion and risk of bias. We extracted data and checked them for accuracy. Populations included: women who were continent (PFMT for prevention), women who were incontinent (PFMT for treatment) at randomisation and a mixed population of women who were one or the other (PFMT for prevention or treatment). We assessed quality of evidence using the GRADE approach.

MAIN RESULTS

The review included 38 trials (17 of which were new for this update) involving 9892 women from 20 countries. Overall, trials were small to moderate sized, and the PFMT programmes and control conditions varied considerably and were often poorly described. Many trials were at moderate to high risk of bias. Other than two reports of pelvic floor pain, trials reported no harmful effects of PFMT.Prevention of urinary incontinence: compared with usual care, continent pregnant women performing antenatal PFMT may have had a lower risk of reporting urinary incontinence in late pregnancy (62% less; risk ratio (RR) for incontinence 0.38, 95% confidence interval (CI) 0.20 to 0.72; 6 trials, 624 women; low-quality evidence). Similarly, antenatal PFMT decreased the risk of urinary incontinence in the mid-postnatal period (more than three to six months' postpartum) (29% less; RR 0.71, 95% CI 0.54 to 0.95; 5 trials, 673 women; moderate-quality evidence). There was insufficient information available for the late (more than six to 12 months') postnatal period to determine effects at this time point.Treatment of urinary incontinence: it is uncertain whether antenatal PFMT in incontinent women decreases incontinence in late pregnancy compared to usual care (RR 0.70, 95% CI 0.44 to 1.13; 3 trials, 345 women; very low-quality evidence). This uncertainty extends into the mid- (RR 0.94, 95% CI 0.70 to 1.24; 1 trial, 187 women; very low-quality evidence) and late (RR 0.50, 95% CI 0.13 to 1.93; 2 trials, 869 women; very low-quality evidence) postnatal periods. In postnatal women with persistent urinary incontinence, it was unclear whether PFMT reduced urinary incontinence at more than six to 12 months' postpartum (RR 0.55, 95% CI 0.29 to 1.07; 3 trials; 696 women; very low-quality evidence).Mixed prevention and treatment approach to urinary incontinence: antenatal PFMT in women with or without urinary incontinence (mixed population) may decrease urinary incontinence risk in late pregnancy (26% less; RR 0.74, 95% CI 0.61 to 0.90; 9 trials, 3164 women; low-quality evidence) and the mid-postnatal period (RR 0.73, 95% CI 0.55 to 0.97; 5 trials, 1921 women; very low-quality evidence). It is uncertain if antenatal PFMT reduces urinary incontinence risk late postpartum (RR 0.85, 95% CI 0.63 to 1.14; 2 trials, 244 women; low-quality evidence). For PFMT begun after delivery, there was considerable uncertainty about the effect on urinary incontinence risk in the late postnatal period (RR 0.88, 95% CI 0.71 to 1.09; 3 trials, 826 women; very low-quality evidence).Faecal incontinence: six trials reported faecal incontinence outcomes. In postnatal women with persistent faecal incontinence, it was uncertain whether PFMT reduced incontinence in the late postnatal period compared to usual care (RR 0.68, 95% CI 0.24 to 1.94; 2 trials; 620 women; very low-quality evidence). In women with or without faecal incontinence (mixed population), antenatal PFMT led to little or no difference in the prevalence of faecal incontinence in late pregnancy (RR 0.61, 95% CI 0.30 to 1.25; 2 trials, 867 women; moderate-quality evidence). For postnatal PFMT in a mixed population, there was considerable uncertainty about the effect on faecal incontinence in the late postnatal period (RR 0.73, 95% CI 0.13 to 4.21; 1 trial, 107 women, very low-quality evidence).There was little evidence about effects on urinary or faecal incontinence beyond 12 months' postpartum. There were few incontinence-specific quality of life data and little consensus on how to measure it. We found no data on health economics outcomes.

AUTHORS' CONCLUSIONS

Targeting continent antenatal women early in pregnancy and offering a structured PFMT programme may prevent the onset of urinary incontinence in late pregnancy and postpartum. However, the cost-effectiveness of this is unknown. Population approaches (recruiting antenatal women regardless of continence status) may have a smaller effect on urinary incontinence, although the reasons for this are unclear. It is uncertain whether a population-based approach for delivering postnatal PFMT is effective in reducing urinary incontinence. Uncertainty surrounds the effects of PFMT as a treatment for urinary incontinence in antenatal and postnatal women, which contrasts with the more established effectiveness in mid-life women.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. Hypothetically, for instance, women with a high body mass index are at risk factor for urinary incontinence. Such uncertainties require further testing and data on duration of effect are also needed. The physiological and behavioural aspects of exercise programmes must be described for both PFMT and control groups and how much PFMT women in both groups do, to increase understanding of what works and for whom.Few data exist on faecal incontinence or costs and it is important that both are included in any future trials. It is essential that future trials use valid measures of incontinence-specific quality of life for both urinary and faecal incontinence.

Practice Bulletin No. 165: Prevention and Management of Obstetric Lacerations at Vaginal Delivery

Lacerations are common after vaginal birth. Trauma can occur on the cervix, vagina, and vulva, including the labial, periclitoral, and periurethral regions, and the perineum. Most of these lacerations do not result in adverse functional outcomes. Severe perineal lacerations, extending into or through the anal sphincter complex, although less frequent, are more commonly associated with increased risk of pelvic floor injury, fecal and urinary incontinence, pain, and sexual dysfunction with symptoms that may persist or be present many years after giving birth. The purpose of this document is to provide evidence-based guidelines for the prevention, identification, and repair of obstetric lacerations and for episiotomy.

Patient preferences for endpoints in fecal incontinence treatment studies

BACKGROUND

Randomized controlled trials of treatments for fecal incontinence (FI) are difficult to compare because case definitions and study endpoints vary. Our aims were to assess patient perspectives on the case definition for FI and how treatment success should be measured.

METHODS

In Phase 1, 28 FI patients participated in anonymous on-line focus groups, and in Phase 2, 186 people with FI, stratified by gender, race, and age completed an online survey.

KEY RESULTS

Focus group participants described frequency and urgency as the most important characteristics for defining FI. Most (80%) thought staining of underwear constitutes FI, but only 33% thought gas leakage was FI. When asked how the success of treatment should be defined, 77% said by a reduction in frequency or complete cure, but less than half thought a 50% reduction in frequency was enough. When asked how much reduction would be needed, responses averaged 80%. The Phase 2 survey confirmed that frequency, urgency, and intestinal discomfort are the most important characteristics for case definition, and that success should be defined by at least a 75% decrease in frequency. A 50% reduction was an acceptable endpoint for 58% overall but only 26% for those aged ≥65. "Adequate relief" was acceptable to 78%.

CONCLUSIONS AND INFERENCES

Inclusion criteria for trials should specify a minimum frequency of FI. Most patients would require a ≥75% reduction in FI frequency to call a treatment successful but young adults and those with more severe FI would accept a ≥50% reduction as meaningful.

Early pelvic floor muscle training after obstetrical anal sphincter injuries for the reduction of anal incontinence

OBJECTIVES

Between 0.5 and 5% of vaginal deliveries involve obstetrical anal sphincter injuries (OASIS). Thirty to forty percent of patients with OASIS will suffer from anal incontinence in the subacute postpartum period. The aim of the present study was to assess the effectiveness of early pelvic floor muscle training (PFMT) combined with standard rehabilitation on anal incontinence after vaginal deliveries complicated by OASIS.

STUDY DESIGN

The present work was a retrospective quantitative study performed in a tertiary-level maternity hospital. Women with 3rd or 4th degree obstetric tears were included. Women who gave birth between January 1st, 2011 and December 31st, 2012 underwent standard pelvic-perineal rehabilitation within 6-8 weeks postpartum. Women who gave birth between January 1st, 2013 and July 1st, 2014 had early rehabilitation (within 30 days after delivery) followed by the same standard rehabilitation received by the other group. Rehabilitation was performed by physiotherapists specialized in perineology. No electrostimulation was done in early rehabilitation. An in-house-validated modification of the Jorge and Wexner questionnaire was sent by mail to the patients to assess symptoms. The main judgment criterion was anal incontinence to gas, loose stools and/or solid stool.

RESULTS

Two hundred and thirty patients were diagnosed with OASIS. Nineteen women (8.3%) were lost to follow-up. The intention-to-treat analysis included 211 patients, 109 of whom underwent standard rehabilitation and 102 early rehabilitation plus standard rehabilitation. The two groups were comparable in terms of parity, birth weight, assisted delivery, epidural anesthesia and rates of mediolateral episiotomy. Multivariate analyses adjusted for type of perineal lesion were performed. Early rehabilitation significantly reduced gas leakage: OR 0.51 [0.29-0.90] (p=0.02), liquid stool leakage: OR 0.22 [0.08-0.58] (p=0.02) and urinary stress incontinence: OR 0.43 [0.24-0.77] (p=0.004).

CONCLUSIONS

We recommend early (during the first month postpartum) PFMT after vaginal deliveries associated with OASIS. Rehabilitation should be carried out by a physiotherapist specialized in perineology in order to prevent medium-term functional consequences. A longer follow-up may be necessary to confirm the stability of results.

[Management of postpartum anal incontinence: A systematic review]

AIM

To analyse the prevalence of postpartum anal incontinence, its risk factors, and its management.

MATERIALS AND METHODS

A comprehensive systematic review of the literature on PubMed, Medline, Embase and Cochrane using: postpartum anal incontinence, postpartum fecal incontinence, perineal rehabilitation, anal surgery.

RESULTS

The prevalence of postpartum anal incontinence varied from 4% (primipare) to 39% (multipare) at 6 weeks postpartum, whereas fecal incontinence can reach respectively 8 to 12% 6 years after delivery. Identified risk factors were: vaginal delivery (OR: 1.32 [95%CI: 1.04-1.68]) compared to cesarean section, instrumental extractions (OR: 1.47 [95%CI: 1.22-1.78]) compared to spontaneous vaginal delivery but it was only with forceps (OR: 1.50 [95%CI: 1.19-1.89]) and not with vaccum (OR: 1.31 [95%CI: 0.97-1.77]). Maternal age over 35 years (OR: 6 [95%CI: 1.85-19.45]), number of births (3 births: OR: 2.91 [95%CI: 1.32-6.41]) and the occurrence of anal-sphincter injury (OR: 2.3 [95%CI: 1.1-5]) were associated with an increased risk of anal incontinence regardless of the type of delivery compared to a group of women without anal incontinence. Perineal rehabilitation should be interpreted with caution because of the lack of randomized controlled trials. A reassessment at 6 months postpartum in order to propose a surgical treatment by sphincteroplasty could be considered if symptoms persist. The results of the sphincteroplasty were satisfactory but with a success rate fading in time (60 to 90% at 6 months against 50 to 40% at 5 and 10 years).

CONCLUSION

Postpartum anal incontinence requires special care. Recommendations for the management of postpartum anal incontinence would be useful.

[Management of third and fourth degree perineal tears: A systematic review]

This was a comprehensive literature review using Pubmed, Medline, Embase and Cochrane, whose aim was to analyse the prevalence of anal sphincter injuries, their risk factors, their management and their functional prognosis. The prevalence of 3rd and 4th degree perineal tears varies between studies from 2.95% regardless the parity to 25% in nulliparous women. Twenty-eight percent to 48% of these lacerations were clinically occult. Perineal tears were associated with (multivariate analysis) forceps (6.021 [IC 95% 1.23-19.45]), nulliparity (OR 9.8 [IC 95% 3.6-26.2]), gestational age over 42 SA (OR 2.5 [IC 95% 1-6.2]), fundal pressure (OR 4.6 [IC 95% 2.3-7.9]), midline episiotomy (OR 5.5 [IC 95% 1.4-18.7]) or fetal weight in interval of 250g (OR 1.3 [IC 95% 1.1-1.6]). There was no difference between the sphincter repair techniques. Post-partum laxative use showed less painful bowel motion and earlier postnatal discharge. Data concerning rehabilitation were contradictory. The rate of anal incontinence 6 months after vaginal delivery were 3.6% following third degree of perineal tear and 30.8% in case of fourth degree of perineal tear. Thirty years after anal sphincter disruption, the prevalence of fecal incontinence reached 6.9%.

Pregnancy and postpartum bowel changes: constipation and fecal incontinence

Pregnancy and the postpartum period are often associated with many gastrointestinal complaints, including nausea, vomiting, and heartburn; however, the most troublesome complaints in some women are defecatory disorders such as constipation and fecal incontinence, especially postpartum. These disorders are often multifactorial in etiology, and many studies have looked to see what risk factors lead to these complications. This review discusses the current knowledge of pelvic floor and anorectal physiology, especially during pregnancy, and reviews the current literature on causes and treatments of postpartum bowel symptoms of constipation and fecal incontinence.