Anal incontinence among first time mothers - What happens in pregnancy and the first year after delivery?

Development and Validation of a Tool to Identify Anal Incontinence in Pregnant and Postnatal Women

BACKGROUND

Neuromuscular and mechanical damage to the pelvic floor because of pregnancy and birth can result in anal incontinence. Pregnant and postnatal women are rarely screened for anal incontinence by clinicians who specialize in the care of these women, and no screening tool has been developed for routine use in these women.

OBJECTIVE

To develop and validate a tool for use in everyday clinical practice in the care of pregnant and postnatal women.

DATA SOURCES

The study includes 2 test phases with separate data sources. Phase I included test and retest phases of the Bowel-Screening Questionnaire in health professionals and women who were pregnant or had recently birthed (n = 45). Phase II included a pilot of the tool compared to 2 current scoring systems (n = 358).

SETTING

Large tertiary hospital in South Australia.

PATIENTS

Phase II: prospective recruitment of 358 prenatal parous women attending a first antenatal appointment.

MAIN OUTCOMES MEASURES

To evaluate the reliability and validity of the developed tool.

RESULTS

Test-retest agreement in phase I was excellent for each of the 6 items, with each κ statistic being between 0.83 and 1.0. In phase II, agreement between new and existing tools was fair to good for the detection of anal incontinence symptoms addressed as a composite question (κ between 0.41 and 0.71). Anal incontinence was detected in 191 women (53%) using the new tool, and there was a lower prevalence reported using the Vaizey score (n = 118) and Wexner score (n = 129). Completion rates of the new tool were 99%, higher than both the Vaizey score (33%) and Wexner score (36%).

LIMITATIONS

Sample size limits the generalization of findings.

CONCLUSION

The questionnaire is reliable and valid, reporting a high incidence of bowel incontinence, with predominant symptoms of rectal urgency and flatus as precursors for worsening function.

DESARROLLO Y VALIDACIN DE UNA HERRAMIENTA PARA IDENTIFICAR LA INCONTINENCIA ANAL EN MUJERES EMBARAZADAS Y PURPERAS

ANTECEDENTES:El daño neuromuscular y mecánico del piso pélvico debido al embarazo y al parto puede resultar en incontinencia anal. Las mujeres embarazadas y puérperas rara vez son examinadas para la incontinencia anal por médicos que se especializan en el cuidado de estas mujeres, y no se ha desarrollado ninguna herramienta de detección para uso rutinario en estas mujeres.OBJETIVO:Desarrollar y validar una herramienta para uso en la práctica clínica diaria en el cuidado de las mujeres embarazadas y puérperas.FUENTES DE DATOS:El estudio incluye 2 fases de prueba con fuentes de datos separadas. Fase 1, fase test y retest del Bowel Screening Questionnaire en profesionales sanitarios y mujeres embarazadas o recién paridas (n = 45). La Fase 2 incluyó una prueba piloto de la herramienta en comparación con dos sistemas de puntuación actuales (n = 358).ENTORNO CLINICO:Gran hospital terciario en el sur de Australia.PACIENTES:Fase 2: reclutamiento prospectivo de 358 mujeres con parto prenatal que asisten a una primera cita prenatal.PRINCIPALES MEDIDAS DE VALORACIÓN:Evaluar la confiabilidad y validez de la herramienta desarrollada.RESULTADOS:La concordancia test-retest en la fase 1 fue excelente para cada uno de los 6 ítems con cada estadística kappa entre 0,83 y 1,0. En la fase 2, el acuerdo entre las herramientas nuevas y las existentes fue regular a bueno para la detección de síntomas de incontinencia anal abordados como una pregunta compuesta (kappa entre 0,41 y 0,71). Se detectó incontinencia anal en 191 (53%) de las mujeres que utilizaban la nueva herramienta, y se notificó una prevalencia más baja utilizando la puntuación de Vaizey (n = 118) y la puntuación de Wexner (n = 129). Las tasas de finalización de la nueva herramienta fueron del 99%, más altas que la puntuación de Vaizey (33%) y las puntuaciones de Wexner (36%).LIMITACIONES:El tamaño de la muestra limita la generalización de los hallazgos.CONCLUSIONES:El cuestionario es confiable y válido reportando una alta incidencia de incontinencia intestinal, con síntomas predominantes de urgencia rectal y flatos como precursores del empeoramiento de la función. (Traducción-Dr. Ingrid Melo ).

Moderate or intensive management of the active phase of second-stage labor and risk of urinary and anal incontinence: results of the PASST randomized controlled trial

BACKGROUND

Incontinence occurs frequently in the postpartum period. Several theoretical pathophysiological models may underlie the hypothesis that different types of management of the active phase of the second stage of labor have different effects on pelvic floor muscles and thus perhaps affect urinary and anal continence.

OBJECTIVE

This study aimed to evaluate the impact of "moderate pushing" on the occurrence of urinary or anal incontinence compared with "intensive pushing," and to determine the factors associated with incontinence at 6 months postpartum.

STUDY DESIGN

This was a planned analysis of secondary objectives of the PASST (Phase Active du Second STade) trial, a multicenter randomized controlled trial. PASST included nulliparous women with singleton term pregnancies and epidural analgesia, who were randomly assigned at 8 cm of dilatation to either the intervention group that used "moderate" pushing (pushing only twice during each contraction, resting regularly for 1 contraction in 5 without pushing, and no time limit on pushing) or the control group following the usual management of "intensive" pushing (pushing 3 times during each contraction, with no contractions without pushing, with an obstetrician called to discuss operative delivery after 30 minutes of pushing). Data about continence were collected with validated self-assessment questionnaires at 6 months postpartum. Urinary incontinence was defined by an ICIQ-UI SF (International Consultation on Incontinence Questionnaire-Urinary Incontinence Short Form) score ≥1 and anal incontinence by a Wexner score ≥2. A separate analysis was also performed among the more severely affected women (ICIQ-UI SF ≥6 and Wexner ≥5). Factors associated with incontinence were assessed with univariate and multivariable analyses.

RESULTS

Among 1618 women initially randomized, 890 (55%) returned the complete questionnaire at 6 months. The rate of urinary incontinence was 36.6% in the "moderate" pushing group vs 38.5% in the "intensive" pushing group (relative risk, 0.95; 95% confidence interval, 0.80-1.13), whereas the rate of anal incontinence was 32.2% vs 34.6% (relative risk, 0.93; 95% confidence interval, 0.77-1.12). None of the obstetrical factors studied related to the second stage of labor influenced the occurrence of urinary or anal incontinence, except operative vaginal delivery, which increased the risk of anal incontinence (adjusted odds ratio, 1.50; 95% confidence interval, 1.04-2.15).

CONCLUSION

The results of the PASST trial indicate that neither moderate nor intensive pushing efforts affect the risk of urinary or anal incontinence at 6 months postpartum among women who gave birth under epidural analgesia.

Prevalence of urinary incontinence and anal incontinence: an internet-based cross-sectional study of female Turkish University students

INTRODUCTION AND HYPOTHESIS

The objective of this cross-sectional, epidemiological study was to characterize urinary tract and bowel symptom prevalence and the extent of discomfort/bother associated with them. Additionally, the authors aimed to explore factors associated with both conditions among Turkish female university students. Also, an insight into women's "communication regarding urinary incontinence and anal incontinence" with their family members was sought.

METHODS

This is an internet-based national cross-sectional study. A study-specific 30-item questionnaire containing validated measures of symptom prevalence and bother (Urogenital Distress Inventory questionnaire short form and Colorectal-Anal Distress Inventory) were incorporated into the survey. Out of a total of 2,125 e-mail invitations that were sent, 1,226 responded with data included in this analysis.

RESULTS

The age and BMI of all respondents were 26.53 ± 10.082, 23.45 ± 6.609 respectively. Nine hundred and eighty-five (80.5%) respondents claimed that they did not suffer a UI episode in the last year, whereas 10 people (0.08%) claimed that they had a urinary incontinence episode every day. Three hundred and fifty-seven responders (29.1%) stated that they suffered from "gas incontinence," 6 (0.5%) stool incontinence, and 20 (1.6%) declared that they had episodes of both stool and gas incontinence. Five hundred and forty-four participants (44%) reported that they had family relatives with a problem of "urinary incontinence" and 576 (47%) stated they had a conversation on "urinary incontinence." Seventy-five of the responders (6.1%) stated that they had a family member with "anal incontinence" and 246 (20.1%) responded that they had a conversation regarding "anal incontinence" with them.

CONCLUSION

We have demonstrated that the prevalence of UI was 19.5%. Twenty-nine percent stated they suffered "gas incontinence," 0.5% stool incontinence, and 1.6% declared that they had episodes of both stool and gas incontinence.

The effect of vaginal delivery and Caesarean section on the anal Sphincter complex of Primipara based on optimized three-dimensional ultrasound image and nuclear regression Reconstruction Algorithm

Objective

The study used the optimized nuclear regression reconstruction algorithm to explore the value of three-dimensional perineal ultrasound evaluation of the effect of caesarean delivery and caesarean section on the anal sphincter complex of primipara.

Methods

This study performed three-dimensional perineal ultrasound scanning of the anal sphincter complex of 157 primiparas 42 days after delivery. Among them, 77 were in caesarean delivery (spontaneous delivery group) and 80 were in caesarean section (caesarean delivery group) from September 2018 to December 2020 in our hospital. The thickness of the end plane, the middle plane, the distal plane and the distal plane of the external anal sphincter at 3, 6, 9, 12 o'clock direction, and measure the thickness of the central plane of the pubic rectum muscle at 4, 8 o'clock direction. At the same time, the study used tomography and volume contrast imaging to observe the morphology and integrity of the anal sphincter complex.

Results

The thickness of the distal anal sphincter at the 12 o'clock direction, the proximal anal sphincter at 6, 12 o'clock, and the central plane at 9 and 12 o'clock in the obstetric group were smaller than those in the caesarean section group (all P < 0.05). There were no significant differences in the thickness of the remaining anal internal and external anal sphincter and puborectalis muscles between the two groups in different directions (all P> 0.05). In the obstetric group, a perineal sphincter defect was found via three-dimensional perineal ultrasound.

Conclusion

The delivery method has a certain influence on the shape of the anal sphincter complex. The thickness of the internal and external anal sphincter of the primiparous women in a certain direction is significantly smaller than that of caesarean section. Transperineally three-dimensional ultrasound can clearly show the morphological characteristics and integrity of the anal sphincter complex, and diagnose the defect of the anal sphincter complex.

Trajectories of Pelvic Floor Symptoms and Support After Vaginal Delivery in Primiparous Women Between Third Trimester and 1 Year Postpartum

OBJECTIVES

The objectives of this study were to describe trajectories of pelvic floor symptoms and support from the third trimester to 1 year postpartum in primiparous women after vaginal delivery and to explore factors associated with their resolution between 8 weeks postpartum and 1 year postpartum.

METHODS

Five hundred ninety-seven nulliparous women 18 years or older who gave birth vaginally at term completed the Epidemiology of Prolapse and Incontinence Questionnaire and the Pelvic Organ Prolapse Quantification examination at the third trimester, 8 weeks postpartum, and 1 year postpartum.

RESULTS

At 1 year postpartum, 41%, 32%, and 23% of participants reported stress urinary incontinence, nocturia, and flatus incontinence, respectively, and 9% demonstrated maximal vaginal descent (MVD) ≥ 0 cm. For more common symptoms, incidence rates between the third trimester and 8 weeks postpartum ranged from 6% for urinary frequency to 22% for difficult bowel movements, and resolution rates between 8 weeks postpartum and 1 year postpartum ranged from 23% for stress urinary incontinence to 73% for pain. Between the third trimester and 8 weeks postpartum, 13% demonstrated de novo MVD ≥ 0 cm. For most symptoms, the presence of the same symptom before delivery decreased the probability of resolution between 8 weeks postpartum and 1 year. However, the sensitivities of predelivery vaginal bulge and MVD of 0 cm or greater for those outcomes at 1 year postpartum was overall low (10-12%).

CONCLUSIONS

One year postpartum, urinary and bowel symptoms are common in primiparous women who gave birth vaginally. A substantial portion of this burden is represented by symptoms present before delivery, while most of the prevalence of worse anatomic support is accounted for by de novo changes after delivery.

Differences in Pelvic Floor Symptoms During Pregnancy Between Hispanic and Non-Hispanic White Women

OBJECTIVES

This study aimed to describe and compare pelvic floor symptoms and symptom burden between nulliparous Hispanic and non-Hispanic white women in the third trimester of pregnancy and to determine, in women with stress urinary incontinence (SUI), whether bother differs between groups, adjusted for UI severity.

METHODS

In this cross-sectional analysis, participants completed the Epidemiology of Prolapse and Incontinence and Incontinence Severity Index questionnaires. We compared differences in symptom domains between groups using logistic regression and tested the effect of ethnicity on bother in women with SUI using linear regression.

RESULTS

The sample comprised 418 non-Hispanic white and 154 Hispanic women. Prevalence rates of symptom domains ranged from 5.0% and 7.1% for pelvic organ prolapse to 95.2% and 94.2% for overactive bladder in non-Hispanic white and Hispanic women, respectively. After adjusting age, height, weight, education, physical activity, and gestational age, non-Hispanic whites had 2.37-fold increased odds (95% confidence interval, 1.44-3.92) for defecatory dysfunction and had nonsignificant increases in other symptom domains. Non-Hispanic whites were more likely to endorse symptoms in 3 or more domains than Hispanic women (58.9% vs 40.3%, respectively; P = 0.0001). Given the same UI severity (Incontinence Severity Index), Hispanic women with SUI reported 7.5 points greater bother (Epidemiology of Prolapse and Incontinence) than non-Hispanic white women (P = 0.07).

CONCLUSIONS

After adjustment, we found few differences in the prevalence of pelvic floor symptom domains between Hispanic and non-Hispanic white women, apart from defecatory dysfunction. If differences by ethnicity in other pelvic floor symptoms exist, they do not seem to originate during the first pregnancy.

Enhancing the identification of anal incontinence in women of reproductive age

Anal incontinence is an unpredictable and debilitating condition that can significantly reduce quality of life. Symptoms include the involuntary loss of solid and/or liquid stool, flatus incontinence and rectal urgency. Pregnancy and childbirth are two major factors that increase the risk of anal incontinence in women of reproductive age. Women at high risk of anal incontinence include those with a known history of the condition and those who have experienced severe perineal trauma, particularly after injury to the anal sphincters (third-degree and fourth-degree tears). Routine screening for anal incontinence of women in high-risk groups during pregnancy and after childbirth appears to be limited in clinical practice. This article discusses the potential benefits of screening for anal incontinence, outlines the factors that inhibit and enable screening, describes current bowel screening tools and their limitations, and explores how the identification of anal incontinence in women of reproductive age could be improved.

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.

Anal incontinence after vaginal delivery or cesarean section

INTRODUCTION

Uncertainties remain as to whether a cesarean section is protective for the short-term and long-term development of anal incontinence. Our aim was to explore whether women who had delivered only vaginally were at greater risk of anal incontinence than nulliparous women and women who had undergone cesarean sections only.

MATERIAL AND METHODS

Background information, medical history, and data on anal incontinence (defined as fecal or flatus incontinence weekly or more) reported by women participating in a large population-based health survey in Norway (the Nord-Trøndelag Health Study 3) during the period October 2006 to June 2008 were collected and linked to data from the Medical Birth Registry of Norway. The prevalence of anal incontinence was calculated and multivariate logistic regression analyses were applied.

RESULTS

The mean age of the 12 567 women was 49.9 years. The age and educational level of women who had cesarean sections only were similar to those who had a vaginal delivery and obstetric anal sphincter injuries (OASIS). Nulliparous women and those who had a vaginal delivery and no OASIS were older and had higher educational achievements than women who had delivered by cesarean section exclusively, and women with OASIS. One in four women with OASIS reported anal incontinence compared with one in six of the other women (P < .001). Age, educational level, diarrhea, constipation, birthweight, and OASIS increased the risk of anal incontinence in all women. Parity was associated with anal incontinence in parous women only. No differences were found for fecal urgency.

CONCLUSIONS

Women with vaginal deliveries complicated by OASIS are at increased risk of anal incontinence. However, no increased risk of anal incontinence was found in nulliparous women or women who had cesarean sections only or vaginal deliveries not complicated by OASIS.

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

OBJECTIVE

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

METHODS

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

RESULTS

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

CONCLUSION

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

Outcomes of primary anal sphincter repair after obstetric injury and evaluation of a novel three-choice assessment

Background

The aim of the present study was to evaluate the subjective outcome of primary repair of obstetric anal sphincter injury (OASIS) at 6 months, the factors associated with the symptoms of anal incontinence (AI), and the role of a simple survey consisting in one question with three answer choices, combined with the Wexner incontinence score for the assessment of this patient population.

Methods

A retrospective cohort study was conducted on patients with third- or fourth-degree OASIS operated on between January 2007 and December 2013 inclusive at Tampere University Hospital, Finland. At 6 months, the patients were asked to report their Wexner’s score as well as the three-choice assessment regarding AI symptoms. Based on this assessment, the patients were divided into three groups: those, asymptomatic, those with mild symptoms who did not want further treatment and those with severe symptoms who were willing to undergo further evaluation and treatment.

Results

There were 325 patients (median age 30 years). A total of 310 patients answered the questionnaire. Of which, one hundred and ninety-eight (63.9%) patients were asymptomatic, 85 (27.4%) had mild AI, and 27 (8.7%) experienced severe symptoms. There was no statistical difference in the results between the two techniques used (overlapping vs. end-to-end), or the stage of specialization of the operating physician. Persistent symptoms were associated with instrumental vaginal delivery (OR 2.12, 95% CI 1.32–3.41), severity of the injury (OR 1.64, 95% CI 1.20–2.25), and increased maternal age (OR 1.07, 95% CI 1.02–1.13). The correlation between the three-choice symptom evaluation and the Wexner score was good (Spearman’s rho 0.82).

Conclusions

After 6 months, severe symptoms after OASIS repair were present in 9% of women and were more frequent in older women, women with high-degree tears and after instrumental vaginal delivery. A three-choice assessment of AI symptoms correlated well with the Wexner score and might be useful to triage patients who need further evaluation.

[Anal incontinence and obstetrical anal sphincter injuries, epidemiology and prevention]

Our main objectives were to identify risk factors, methods for early diagnosis, and prevention of obstetric anal sphincter injuries (OASIs), using a literature review. The main risk factors for OASIs are nulliparity, instrumental delivery, posterior presentation, median episiotomy, prolonged second phase of labor and fetal macrosomia. Asian origin, short ano-vulvar distance, ligamentous hyperlaxity, lack of expulsion control, non-visualization of the perineum or maneuvers for shoulder dystocia also appear to be risk factors. There is a risk of under-diagnosis of OASIs in the labor ward. Experience of the accoucheur is a protective factor. Secondary prevention is based on the training of birth professionals in recognition and repair of OASIs. Primary prevention of OASIs is based on training in the maneuvers of the second phase of labor; if possible, instrumental extractions should be avoided. Mediolateral episiotomy may have a preventive role in high-risk OASIs deliveries. A robust predictive model is still lacking to allow a selective use of episiotomy.

Pelvic Floor Disorders 6 Months after Attempted Operative Vaginal Delivery According to the Fetal Head Station: A Prospective Cohort Study

Objective

To evaluate the effect of the fetal head station at attempted operative vaginal delivery (aOVD), and specifically midpelvic or low aOVD, on urinary incontinence (UI), anal incontinence (AI), and perineal pain at 6 months.

Design

Prospective cohort study.

Setting

1941 women with singleton term fetuses in vertex presentation with midpelvic or low aOVD between 2008 and 2013 in a tertiary care university hospital.

Methods

Symptoms of urinary incontinence (UI) using the Bristol Female Lower Urinary Tract Symptoms questionnaire, and symptoms of anal incontinence (AI) severity using Fecal Incontinence Severity Index (FISI) were assessed 6 months after aOVD. We measured the association between midpelvic or low aOVD and symptoms of UI, AI, and perineal pain at 6 months using multiple regression and adjusting for demographics, and risk factors of UI and AI, with adjusted odds ratios (aORs) and 95% confidence intervals (95% CI).

Results

The study included 907 women (46.7%) who responded to the questionnaire; 18.4% (167/907) had midpelvic aOVD, and 81.6% (740/907) low; and none of women with symptoms of UI (26.6%, and 22.4%, respectively; p = 0.31), AI (15.9%, and 21.8%; p = 0.09), the FISI score, and perineal pain (17.2%, and 12.7%; p = 0.14) differed significantly between groups. The same was true for stress, urge, and mixed-type UI, severe UI and difficulty voiding. Compared with low pelvic aOVD, the aORs for symptoms of UI in midpelvic aOVD were 0.70 (0.46–1.05) and AI 1.42 (0.85–2.39). Third- and fourth-degree tears were a major risk factor of symptoms of UI (aOR 3.08, 95% CI 1.35–7.00) and AI (aOR 3.47, 95% CI 1.43–8.39).

Conclusion

Neither symptoms of urinary nor anal incontinence differed at 6 months among women who had midpelvic and low pelvic aOVD. These findings are reassuring and need further studies at long-term to confirm these short-term data.