Onset and risk factors for fecal incontinence in a US community

Dietary Intake and Symptom Severity in Women with Fecal Incontinence

INTRODUCTION AND HYPOTHESIS

The goal of this study was to determine whether dietary fat/fiber intake was associated with fecal incontinence (FI) severity.

METHODS

Planned supplemental analysis of a randomized clinical trial evaluating the impact of 12-week treatment with percutaneous tibial nerve stimulation versus sham in reducing FI severity in women. All subjects completed a food screener questionnaire at baseline. FI severity was measured using the seven-item validated St. Mark's (Vaizey) FI severity scale. Participants also completed a 7-day bowel diary capturing the number of FI-free days, FI events, and bowel movements per week. Spearman's correlations were calculated between dietary, St. Mark's score, and bowel diary measures.

RESULTS

One hundred and eighty-six women were included in this analysis. Mean calories from fats were 32% (interquartile range [IQR] 30-35%). Mean dietary fiber intake was 13.9 ± 4.3 g. The percentage of calories from fats was at the higher end of recommended values, whereas fiber intake was lower than recommended for adult women (recommended values: calories from fat 20-35% and 22-28 g of fiber/day). There was no correlation between St. Mark's score and fat intake (r = 0.11, p = 0.14) or dietary fiber intake (r = -0.01, p = 0.90). There was a weak negative correlation between the number of FI-free days and total fat intake (r = -0.20, p = 0.008). Other correlations between dietary fat/fiber intake and bowel diary measures were negligible or nonsignificant.

CONCLUSION

Overall, in women with moderate to severe FI, there was no association between FI severity and dietary fat/fiber intake. Weak associations between FI frequency and fat intake may suggest a role for dietary assessment in the evaluation of women with FI.

Centrally Distributed Adiposity as a Modifiable Risk Factor for Fecal Incontinence: United States Population-based Analysis

BACKGROUND AND AIMS

Fecal incontinence (FI) is highly prevalent with substantial impacts on quality of life and health care utilization. The impact of obesity on FI remains unclear, with differing conclusions using body mass index (BMI) as a risk factor. We aimed to determine the association between obesity and FI, and whether this relationship is dependent on the distribution of adiposity (waist circumference-to-height ratio [WHtR]).

METHODS

This was a population-based analysis of the National Health and Nutrition Examination Survey, including participants who responded to the bowel health survey in 2005 to 2010. FI was defined by the accidental bowel leakage of solid stool, liquid, or mucus at least once in the past month. Stepwise multivariable logistic regression models were constructed to assess risk factors for FI.

RESULTS

A total of 7606 participants were included, with an overall FI prevalence of 9.2%. When stratified by quartiles of body measurements, FI was increasingly prevalent from the 1st to the 4th quartile for both WHtR (range, 5.3%-12.5%) and BMI (range, 7.1%-10.5%). WHtR was associated with FI and was a stronger predictor than BMI in all quartiles of body measurement. On multivariable analysis, WHtR remained a significant predictor of FI comparing the 4th with the 1st quartile of body measurements (odds ratio [OR], 1.77; 95% confidence interval [CI], 1.11-2.80; P = .017), whereas BMI was not. A WHtR cutoff of >0.592 optimized the Youden index in prediction of FI in the overall sample.

CONCLUSION

WHtR was independently associated with increased odds of FI in this nationally representative sample of United States adults, whereas BMI was not consistently correlated. This suggests bowel continence may depend more on how body mass is distributed.

Global Prevalence of Fecal Incontinence in Community-Dwelling Adults: A Systematic Review and Meta-analysis

BACKGROUND & AIMS

Fecal incontinence (FI) can considerably impair quality of life. Through a systematic review and meta-analysis, we sought to determine the global prevalence and geographic distribution of FI and to characterize its relationship with sex and age.

METHODS

We searched PubMed, Web of Science, and Cochrane Library databases to identify population-based surveys of the prevalence of FI.

RESULTS

Of the 5175 articles identified, the final analysis included 80 studies; the median response rate was 66% (interquartile range [IQR], 54%-74%). Among 548,316 individuals, the pooled global prevalence of FI was 8.0% (95% confidence interval [CI], 6.8%-9.2%); by Rome criteria, it was 5.4% (95% CI, 3.1%-7.7%). FI prevalence was greater for persons aged 60 years and older (9.3%; 95% CI, 6.6%-12.0%) compared with younger persons (4.9%; 95% CI, 2.9%-6.9%) (odds ratio [OR], 1.75; 95% CI, 1.39-2.20), and it was more prevalent among women (9.1%; 95% CI, 7.6%-10.6%) than men (7.4%; 95% CI, 6.0%-8.8%]) (OR, 1.17; 95% CI, 1.06-1.28). The prevalence was highest in Australia and Oceania, followed by North America, Asia, and Europe, but prevalence could not be estimated in Africa and the Middle East. The risk of bias was low, moderate, and high for 19 (24%), 46 (57%), and 15 (19%) studies, respectively. Exclusion of studies with high risk of bias did not affect the prevalence of FI or heterogeneity. In the meta-regression, the high study heterogeneity (I2 = 99.61%) was partly explained by age.

CONCLUSIONS

Approximately 1 in 12 adults worldwide have FI. The prevalence is greater among women and older people.

Baiona's Consensus Statement for Fecal Incontinence. Spanish Association of Coloproctology

Faecal incontinence (FI) is a major health problem, both for individuals and for health systems. It is obvious that, for all these reasons, there is widespread concern for healing it or, at least, reducing as far as possible its numerous undesirable effects, in addition to the high costs it entails. There are different criteria for the diagnostic tests to be carried out and the same applies to the most appropriate treatment, among the numerous options that have proliferated in recent years, not always based on rigorous scientific evidence. For this reason, the Spanish Association of Coloproctology (AECP) proposed to draw up a consensus to serve as a guide for all health professionals interested in the problem, aware, however, that the therapeutic decision must be taken on an individual basis: patient characteristics/experience of the care team. For its development it was adopted the Nominal Group Technique methodology. The Levels of Evidence and Grades of Recommendation were established according to the criteria of the Oxford Centre for Evidence-Based Medicine. In addition, expert recommendations were added briefly to each of the items analysed.

Endosonographic monitoring of Sphinkeeper® prostheses movements: does physical activity have an impact?

The Sphinkeeper® procedure for treating faecal incontinence (FI) may be associated with potential implant migration (IM) and dislocation (ID), with considerable variations regarding their occurrence and effects on consecutive functional outcome. This study assessed IM and ID following the Sphinkeeper® procedure and its correlation with physical activity. This was a prospective observational clinical study of ten patients undergoing Sphinkeeper® operation due to FI between August 2020 and November 2020 at the Medical University of Vienna. Patients were followed-up after 1, 2, 3 and 6 months and 1 year postoperatively. Each follow-up visit included endosonographic monitoring of protheses location and manometric examinations. Additionally, functional outcome and physical activity were assessed using validated standardized questionnaires. The median number of prostheses implanted was 10 (IQR 9-10). The St. Mark's incontinence (SMS) score improved significantly until the last follow-up (p = 0.049), without observing a significant effect on the physical SF-12 score. The median rate of implants leading to IM and ID was 3 (range 1-4) and 2 (range 1-2) after 3 months of follow-up. A strong association of deltaSMS with number of dislocated prostheses at one month after Sphinkeeper® implantation was observed (r = 0.654, p = 0.078). Physical activity, assessed by the international physical activity questionnaire, did not have an impact on the correct prosthesis placement (1 month: p = 0.527; 2 months: p = 0.886; 3 months: p = 0.180; 6 months: p = 0.111). IM and ID of Sphinkeeper® prostheses occurred frequently early after surgery and affected functional outcome negatively. Physical activity did not have an influence on the implants displacement.

The Mexican consensus on fecal incontinence

Fecal incontinence is the involuntary passage or the incapacity to control the release of fecal matter through the anus. It is a condition that significantly impairs quality of life in those that suffer from it, given that it affects body image, self-esteem, and interferes with everyday activities, in turn, favoring social isolation. There are no guidelines or consensus in Mexico on the topic, and so the Asociación Mexicana de Gastroenterología brought together a multidisciplinary group (gastroenterologists, neurogastroenterologists, and surgeons) to carry out the «Mexican consensus on fecal incontinence» and establish useful recommendations for the medical community. The present document presents the formulated recommendations in 35 statements. Fecal incontinence is known to be a frequent entity whose incidence increases as individuals age, but one that is under-recognized. The pathophysiology of incontinence is complex and multifactorial, and in most cases, there is more than one associated risk factor. Even though there is no diagnostic gold standard, the combination of tests that evaluate structure (endoanal ultrasound) and function (anorectal manometry) should be recommended in all cases. Treatment should also be multidisciplinary and general measures and drugs (lidamidine, loperamide) are recommended, as well as non-pharmacologic interventions, such as biofeedback therapy, in selected cases. Likewise, surgical treatment should be offered to selected patients and performed by experts.

Evaluating the risk factors for the development of benign disorders of defaecation: a surgical perspective

PURPOSE

There remains uncertainty as to which risk factors are important for the development of defaecatory problems as a result of heterogeneity of published evidence. Understanding the impact of risk factors may be important in selecting targets for disease prevention or reversal. The aim of this study was to identify and evaluate risk factors for faecal incontinence and chronic constipation.

METHODS

Risk factors for chronic constipation and faecal incontinence were long-listed from scientific literature, then anonymously evaluated (by 50 predominantly colorectal surgical experts from the UK Pelvic Floor Society) using a Delphi technique. Each risk factor was rated as independent, a co-factor, or not a risk factor. Independent risk factors were rated between 1 (not important) and 10 (critically important) with mean (± standard deviation) calculated.

RESULTS

Thirty-eight risk factors for chronic constipation were evaluated. Eighteen were classed as independent and 16 as co-factors. Opioid analgesia (7.87 ± 2.05), eating disorders (7.80 ± 1.72), and history of abuse (7.70 ± 1.89) were scored as most important independent risk factors. Female sex (6.60 ± 2.02) was considered an independent risk factor but increasing age was rated a co-factor. Thirty-three risk factors for faecal incontinence were evaluated. Twenty were classed as independent and eight as co-factors. Third- or fourth-degree tear (8.88 ± 1.57), instrumental delivery (8.47 ± 1.58), and grand multiparity (8.00 ± 1.63) were rated most important. Increasing age (7.41 ± 2.14) and female sex (7.58 ± 2.05) were both considered independent risk factors.

CONCLUSIONS

Several risk factors for chronic constipation and faecal incontinence were selected by Delphi approach. These factors will feed forward into Bayesian models of disease prediction that combine data and expert knowledge.

Outcomes of graciloplasty in the treatment of fecal incontinence: a systematic review and meta-analysis of the literature

BACKGROUND

Patients with refractory fecal incontinence symptoms can be treated with several surgical procedures including graciloplasty. Reported outcomes and morbidity rates of this procedure are highly variable. The aim of this study was to assess continence rate and safety of dynamic and adynamic graciloplasty.

METHODS

PubMed and Google Scholar databases were systematically searched from inception until January 2022 according to preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines. Reviews, animal studies, studies with patients < 18 years or < 10 patients, with no success rate reported or non-English text, were excluded. Main outcome measures were overall continence and morbidity rates of each technique.

RESULTS

Fourteen studies were identified, incorporating a total of 450 patients (337 females), published between 1980 and 2021. Most common etiology of incontinence (35.5%-n = 160) was obstetric trauma followed by anorectal trauma (20%-n = 90). The weighted mean rate of continence after dynamic graciloplasty was 69.1% (95% CI 0.53-0.84%, I2 = 90%) compared to 71% (95% CI 0.54-0.87, I2 = 82.5%) after adynamic. Although the weighted mean short-term complication rate was lower in the dynamic group (26% versus 40%), when focusing on complications requiring intervention under general anesthesia, there was a much higher incidence (43.4% versus 10.5%) in the dynamic group. The weighted mean rate of long-term complications was 59.4% (95% CI 0.13-1.04%, I2 = 97.7%) in the dynamic group, almost twice higher than in the adynamic group [30% (95% CI - 0.03 to 0.63), I2 = 95.8%]. Median follow-up ranged from 1 to 13 years.

CONCLUSIONS

Our data suggest that graciloplasty may be considered for incontinent patients. Dynamic graciloplasty may harbor higher risk for reoperation and complications compared to adynamic. The fact that the functional results between adynamic and dynamic graciloplasty are equivalent and the morbidity rate of adynamic graciloplasty is significantly lower reinforce the graciloplasty as an option to treat appropriately selected patients with fecal incontinence.

Novel insights into physiological mechanisms underlying fecal continence

The machinery maintaining fecal continence prevents involuntary loss of stool and is based on the synchronized interplay of multiple voluntary and involuntary mechanisms, dependent on cooperation between motor responses of the musculature of the colon, pelvic floor, and anorectum, and sensory and motor neural pathways. Knowledge of the physiology of fecal continence is key toward understanding the pathophysiology of fecal incontinence. The idea that involuntary contraction of the internal anal sphincter is the primary mechanism of continence and that the external anal sphincter supports continence only by voluntary contraction is outdated. Other mechanisms have come to the forefront, and they have significantly changed viewpoints on the mechanisms of continence and incontinence. For instance, involuntary contractions of the external anal sphincter, the puborectal muscle, and the sphincter of O'Beirne have been proven to play a role in fecal continence. Also, retrograde propagating cyclic motor patterns in the sigmoid and rectum promote retrograde transit to prevent the continuous flow of content into the anal canal. With this review, we aim to give an overview of primary and secondary mechanisms controlling fecal continence and evaluate the strength of evidence.

Fecal Incontinence in the Elderly

Fecal incontinence can be a challenging and stigmatizing disease with a high prevalence in the elderly population. Despite effective treatment options, most patients do not receive care. Clues in the history and physical examination can assist the provider in establishing the diagnosis. Direct inquiry about the presence of incontinence is key. Bowel disturbances are common triggers for symptoms and represent some of the easiest treatment targets. We review the epidemiology and impact of the disease, delineate a diagnostic and treatment approach for primary care physicians to identify patients with suspected fecal incontinence and describe appropriate treatment options.

A Low FODMAP Diet May Reduce Symptoms in Patients With Fecal Incontinence

Fecal incontinence (FI) is a common complaint and is often associated with diarrhea and urgency. Foods high in fermentable oligo-, di-, and mono-saccharides and polyols (FODMAP) cause symptoms of diarrhea and urgency. Therefore, this study assesses the impact of a low FODMAP diet on the occurrence of FI due to loose stool.

Fecal Incontinence Symptoms and Impact in Older Versus Younger Women Seeking Care

BACKGROUND

The differential impact of aging on fecal incontinence symptom severity and condition-specific quality of life remains unclear.

OBJECTIVE

The purpose of this study was to characterize differences in symptom distress, quality of life, and anorectal physiology assessments in older versus younger women with fecal incontinence.

DESIGN

This was a cross-sectional study.

SETTINGS

This study was conducted at a tertiary genitorectal disorder clinic.

PATIENTS

Women presenting for fecal incontinence evaluation between 2003 and 2016 were classified as older or younger based on age ≥65 or <65 years.

MAIN OUTCOME MEASURES

The main outcomes were symptom-specific quality of life and distress measured by validated questionnaires (the Modified Manchester Health Questionnaire containing the Fecal Incontinence Severity Index); anorectal physiology and anatomy were assessed by manometry and endoanal ultrasound.

RESULTS

Of 879 subjects, 286 and 593 were classified as older and younger (mean ages, 71.4 ± 5.3 y and 51.3 ± 10.5 y). Solid stool leakage was more frequent in older women (83.2% vs 76.7%; p = 0.03), whereas liquid stool leakage (83.2% vs 82.8%; p = 0.88) and fecal urgency (76.9% vs 78.8%; p = 0.54) did not differ between groups. Mean symptom severity scores were similar between groups (28.0 ± 11.9 and 27.6 ± 13.5; p = 0.69); however, there was greater negative impact on quality of life among younger women (46.3 ± 22.0 vs 51.8 ± 21.8; p < 0.01). Multivariable linear regression controlling for pertinent covariates revealed younger age as an independent predictor for worse condition-specific quality-of-life scores (p < 0.01). Squeeze pressures were similar between groups, whereas younger women had greater resting pressures and higher rates of sphincter defects (external, 7.7% vs 20.2%; internal, 12.2% vs 26.8%; both p < 0.01).

LIMITATIONS

This study was limited by its lack of patient obstetric history and the duration of their incontinence symptoms.

CONCLUSIONS

Characteristics differ between older and younger women seeking care for fecal incontinence. The differential impact and age-related phenotypes may provide useful information for patient counseling and developing management algorithms for women with fecal incontinence. See Video Abstract at http://links.lww.com/DCR/A910.

Diet Modifications in Older Women With Fecal Incontinence: A Qualitative Study

OBJECTIVE

The aim of the study was to investigate dietary modification strategies used by community-dwelling older women to manage their fecal incontinence (FI).

METHODS

We conducted a qualitative study with focus groups wherein women 65 years and older with FI shared their experiences managing the condition. We explored the following: (1) association between diet and FI symptoms, (2) dietary strategies and modifications used by older women to manage FI, and (3) patient input about disseminating diet modification information and strategies. All focus groups were audio recorded, transcribed, coded, and qualitatively analyzed to identify relevant themes.

RESULTS

Twenty-one women participated in 3 focus groups. All participants were aware that diet plays a key role in their experience of FI and women described a method of "trial and error" in identifying specific aspects of their diet that contributed to their FI symptoms. Women reported modifications including avoiding or limiting several foods and food categories, changing certain methods of food preparation, as well as varying the amounts and frequency of meals to manage their FI. Women articulated several suggestions including the importance of physician input, using a balanced approach when making recommendations, and the value of sharing individual experiences.

CONCLUSIONS

Older women with FI make several dietary modifications to manage their symptoms including limiting certain foods, changing methods of food preparation, and decreasing the amounts and frequency of meals. These strategies may be considered for inclusion in a diet modification plan that is culturally competent for older women with FI.

Acupuncture for fecal incontinence: Protocol for a systematic review and data mining

BACKGROUND

Fecal incontinence is a socially and emotionally destructive condition that has a negative impact on personal image, self-confidence, and quality of life. Acupuncture is commonly used to treat chronic conditions, including fecal incontinence. However, no relevant systematic review or meta-analysis has been designed to evaluate the effects of acupuncture on fecal incontinence.

METHODS

We will identify relevant randomized controlled trials (RCTs) from the Cochrane Library, Medline, Embase, PubMed, Springer, Web of Science, China National Knowledge Infrastructure, VIP Chinese Science and Technology Journals Database, Wanfang database, and clinical trial registration center from their inception to February 28, 2019. The primary outcome measures will be clinical effective rate, functional outcomes, and quality of life. Data that meets the inclusion criteria will be extracted and analyzed using RevMan V.5.3 software. Two reviewers will evaluate the studies using the Cochrane Collaboration risk of bias tool. Publication bias will be assessed by funnel plots, Egger test, and Begg test using the Stata software. Acupoints characteristics will be analyzed by Traditional Chinese Medicine inheritance support system.

RESULTS

This study will analyze the clinical effective rate, functional outcomes, quality of life, daily average number of fecal incontinence, and effective prescriptions of acupuncture for patients with fecal incontinence.

CONCLUSION

Our findings will provide evidence for the effectiveness and potential treatment prescriptions of acupuncture for patients with fecal incontinence.

PROSPERO REGISTRATION NUMBER

PROSPERO CRD42019119680.

Physical Activity, BMI, and Risk of Fecal Incontinence in the Nurses' Health Study

BACKGROUND

Higher body mass index (BMI) and low physical activity have been associated with increased prevalence of fecal incontinence (FI) in cross-sectional studies, but prospective studies examining the role of these factors are lacking. We sought to determine whether BMI and/or physical activity are associated with risk of FI among older women.

METHODS

We prospectively examined the association between BMI and physical activity and risk of FI in the Nurses' Health Study among 51,708 women who were free of FI in 2008. We defined FI as at ≥1 liquid or solid FI episode/month during the past year reported in 2010 or 2012. We used Cox proportional hazards models to calculate multivariable-adjusted hazard ratios (HRs) and 95% confidence intervals (CIs) for FI according to physical activity and BMI, adjusting for potential confounding factors.

RESULTS

During more than 175,000 person-years of follow-up, we documented 5954 cases of incident FI. Compared with women in the lowest activity category (<3 metabolic equivalent of task (MET)-hrs/week), multivariable-adjusted HRs for FI were 0.86 (95% CI 0.80-0.93) for women doing 3-8 MET-hrs/week, 0.78 (95% CI 0.72-0.84) for 9-17 MET-hrs/week, 0.76 (95% CI 0.69-0.83) for 18-26 MET-hrs/week, and 0.75 (95% CI 0.70-0.81) for 27 + MET-hrs/week (P_trend = <0.0001). There was no association between BMI and risk of FI.

CONCLUSIONS

Higher levels of physical activity were associated with a modest reduction (25%) in risk of incident FI among older women. These results support a potential role of ongoing physical activity in the neuromuscular health of the anorectal continence mechanism with aging.

TRANSLATIONAL IMPACT

These results support a potential role of ongoing physical activity in the neuromuscular health of the anorectal continence mechanism with aging.

Increased Long-term Dietary Fiber Intake Is Associated With a Decreased Risk of Fecal Incontinence in Older Women

BACKGROUND & AIMS

Fiber supplements are frequently used as treatment for fecal incontinence (FI), but little is known about the role of dietary fiber in the prevention of FI.

METHODS

We performed a prospective study to examine the association between long-term dietary fiber intake and risk of FI in 58,330 older women (mean age, 73 years) in the Nurses' Health Study who were free of FI in 2008. Energy-adjusted long-term dietary fiber intake was determined using food frequency questionnaires starting in 1984 and updated through 2006. We defined incident FI as at least 1 liquid or solid FI episode per month during the past year during 4 years of follow-up using self-administered biennial questionnaires. We used Cox proportional hazards models to calculate multivariable-adjusted hazard ratios and 95% CIs for FI according to fiber intake, adjusting for potential confounding factors.

RESULTS

During 193,655 person-years of follow-up, we documented 7,056 incident cases of FI. Compared with women in the lowest quintile of fiber intake (13.5 g/day), women in the highest quintile (25 g/day) had an 18% decrease in risk of FI (multivariable hazard ratio, 0.82; 95% CI, 0.76-0.89). This decrease appeared to be greatest for risk of liquid stool FI, which was 31% lower in women with the highest intake of fiber compared with women with the lowest intake (multivariable hazard ratio, 0.69; 95% CI, 0.62-0.75). Risk of FI was not significantly associated with fiber source.

CONCLUSIONS

In an analysis of data from almost 60,000 older women in the Nurses' Health Study, we found higher long-term intake of dietary fiber was associated with decreased risk of FI. Further studies are needed to determine the mechanisms that mediate this association.

Prevalence of and Factors Associated With Fecal Incontinence: Results From a Population-Based Survey

BACKGROUND & AIMS

Fecal incontinence (FI) is characterized by uncontrolled passage of solid or liquid stool. We aimed to determine the prevalence and severity of FI in a large sample of US residents.

METHODS

We recruited a representative sample of patients in October 2015 to complete the National Gastrointestinal (GI) Survey; a mobile app called MyGiHealth was used to systematically collect data on GI symptoms. FI was defined as accidental leakage of solid or liquid stool. Severity of FI was determined by responses to the National Institutes of Health FI Patient Reported Outcomes Measurement Information System questionnaire. Multivariable regression models were used to identify factors associated with FI prevalence and severity.

RESULTS

Among 71,812 individuals who completed the National GI Survey, 14.4% reported FI in the past; of these, 33.3% had FI within the past 7 days. Older age, male sex, and Hispanic ethnicity increased the likelihood of having FI within the past week. Individuals with Crohn's disease, ulcerative colitis, celiac disease, irritable bowel syndrome, or diabetes were more likely to report FI. Non-Hispanic black and Hispanic individuals and individuals with Crohn's disease, celiac disease, diabetes, human immunodeficiency virus/acquired immunodeficiency syndrome, or chronic idiopathic constipation had more severe symptoms of FI than individuals without these features.

CONCLUSIONS

In a large population-based survey, 1 in 7 people reported previous FI. FI is age-related and more prevalent among individuals with inflammatory bowel disease, celiac disease, irritable bowel syndrome, or diabetes than people without these disorders. Proactive screening for FI among these groups is warranted.

Fecal incontinence and parity in the Dutch population: A cross-sectional analysis

Background

It is assumed that pregnancy and childbirth increase the risk of developing fecal incontinence (FI).

Objective

We investigated the incidence of FI in groups of nulliparous and parous women.

Methods

Retrospectively, we studied a cross-section of the Dutch female population (N = 680) who completed the Groningen Defecation & Fecal Continence questionnaire. We also analyzed a subgroup of healthy women (n = 572) and a subgroup of women with comorbidities (n = 108).

Results

The prevalence of FI and the Vaizey and Wexner scores did not differ significantly between nulliparous and parous women. Parous women were 1.6 times more likely to experience fecal urgency than nulliparous women (95% CI, 1.0–2.6, p = 0.042). Regression analyses showed that parity, mode of delivery, duration of second stage of labor, obstetrical laceration or episiotomy, and birth weight seem not to be associated with the likelihood of FI.

Conclusions

Pregnancy and childbirth seem not to be associated with the prevalence and severity of FI in the Dutch population. Vacuum and forceps deliveries, however, might result in a higher prevalence of FI. Although the duration of being able to control bowels after urge sensation is comparable between nulliparous and parous women, parous women experience fecal urgency more often.

Prevalence of anal incontinence in a working population within a healthcare environment

OBJECTIVES

Anal incontinence is a devastating affliction with several considerations that make it difficult to define in terms of epidemiology with good precision. The aim of the present work is to study the prevalence of an important disorder such as anal incontinence in a healthy working population within a sanitary environment.

MATERIAL AND METHODS

A cluster of easy understanding and filling inquiry forms are distributed to 910 apparently healthy individuals at our hospital. This questionnaires include filiation data, passed medical history, presence or not of Incontinence and other symptoms such as urgency. The Cleveland Clinic Incontinence Score is also registered.

RESULTS

Anal incontinence is present in a 21.2% of subjects when considered in any of it forms (flatus, liquid or solid faeces). A Clevleand Clinic Incontinence Score higher than 6 was obtained in a 7.3% of the sample and higher than 10 in 1.2%. No gender predominance has been identified. A slightly higher severity is recognised with increasing age. Obstetric and anal surgical background are the only related factors identified in the studied sample.

CONCLUSIONS

Faecal incontinence is a high prevalent affliction, even among apparently healthy population. Considering the aetiologic factors that have been established, prevention during obstetric and anal surgical procedures is absolutely mandatory.

Metabolites and microbial composition of stool of women with fecal incontinence: Study design and methods

AIMS

This paper aims to report the rationale, design, and the specific methodology of an ongoing nested observational study that will determine the association of the metabolite and microbial composition of stool with fecal incontinence (FI).

METHODS

Eligible cases are participants with FI enrolled in the Controlling Anal Incontinence in women by Performing Anal Exercises with Biofeedback or Loperamide (CAPABLe) trial, a Pelvic Floor Disorders Network trial across eight clinical centers in the United States. Women of similar age without FI in the last year served as controls. All subject collected stool samples at the baseline and 24-week visit at home using a standardized collection method. Samples were shipped to and stored at centralized laboratories.

RESULTS

Specimen collection commenced December 2014 and was completed in May 2016. Fecal water and DNA has been extracted and is currently being analyzed by targeted metabolic profiling for stool metabolites and 16S rRNA gene sequencing for stool microbiota.

CONCLUSIONS

This article describes the rationale and design of a study that could provide a paradigm shift for the treatment of FI in women.

Menopausal Hormone Therapy Is Associated With Increased Risk of Fecal Incontinence in Women After Menopause

BACKGROUND & AIMS

Low estrogen levels can contribute to development of fecal incontinence (FI) in women after menopause by altering neuromuscular continence mechanisms. However, studies have produced conflicting results on the association between menopausal hormone therapy (MHT) and risk of FI.

METHODS

We studied the association between MHT and risk of FI among 55,828 postmenopausal women (mean age, 73 years) who participated in the Nurses' Health Study, were enrolled since 2008, and with no report of FI. We defined incident FI as a report of at least 1 liquid or solid FI episode per month during 4 years of follow-up from self-administered, biennial questionnaires administered in 2010 and 2012. We used Cox proportional hazard models to calculate multivariate-adjusted hazard ratios and 95% confidence intervals (CIs) for FI risk in women receiving MHT, adjusting for potential confounding factors.

RESULTS

During more than 185,000 person-years of follow-up, there were 6834 cases of incident FI. Compared with women who never used MHT, the multivariate hazard ratio for FI was 1.26 (95% CI, 1.18-1.34) for past users of MHT and 1.32 (95% CI, 1.20-1.45) for current users. The risk of FI increased with longer duration of MHT use (P trend ≤ .0001) and decreased with time since discontinuation. There was an increased risk of FI among women receiving MHT that contained a combination of estrogen and progestin (hazard ratio, 1.37; 95% CI, 1.10-1.70) compared with estrogen monotherapy.

CONCLUSIONS

Current or past use of MHT was associated with a modestly increased risk of FI among postmenopausal women in the Nurses' Health Study. These results support a potential role for exogenous estrogens in the impairment of the fecal continence mechanism.

Use of Anal Acoustic Reflectometry in the Evaluation of Men With Passive Fecal Leakage

BACKGROUND

Men with passive fecal leakage represent a distinct clinical entity in which the pathophysiology remains unclear. Standard anorectal investigations fail to demonstrate consistent abnormalities in this group. Anal acoustic reflectometry is a new test of anal sphincter function with greater sensitivity and discriminatory ability than conventional anal manometry.

OBJECTIVE

The aim of this study was to determine whether men with fecal leakage have an abnormality in anal sphincter function that is detectable by anal acoustic reflectometry.

DESIGN

This was an age-matched study of continent and incontinent men.

SETTINGS

The study was conducted at a university teaching hospital.

PATIENTS

Male patients with isolated symptoms of fecal leakage were recruited. Anal acoustic reflectometry, followed by conventional anal manometry, was performed. Results were then compared with those from an age-matched group of men with no symptoms of anal incontinence or anorectal pathology.

MAIN OUTCOME MEASURES

Variables measured with anal acoustic reflectometry and anal manometry in the incontinent and continent men were compared.

RESULTS

Thirty subjects were recruited, of whom 15 were men with fecal leakage and 15 were continent men. There was a significantly higher incidence of previous anorectal surgery in the men with leakage. The anal acoustic reflectometry variables of opening and closing pressure were significantly lower in leakers compared with continent subjects (p = 0.003 and p = 0.001). Hysteresis was significantly greater in the male leaker group (p = 0.026). No difference was seen in anal manometry.

LIMITATIONS

With a larger sample size, the effect of previous anorectal surgery and the presence of an anal sphincter defect could be clarified.

CONCLUSIONS

Anal acoustic reflectometry is a sensitive test of anal sphincter function and, unlike anal manometry, can discriminate male leakers from continent subjects. An identifiable abnormality has been detected using anal acoustic reflectometry, which may further our understanding of the pathogenesis in this group.

Functional Anorectal Disorders

This report defines criteria and reviews the epidemiology, pathophysiology, and management of common anorectal disorders: fecal incontinence (FI), functional anorectal pain and functional defecation disorders. FI is defined as the recurrent uncontrolled passage of fecal material for at least 3 months. The clinical features of FI are useful for guiding diagnostic testing and therapy. Anorectal manometry and imaging are useful for evaluating anal and pelvic floor structure and function. Education, antidiarrheals and biofeedback therapy are the mainstay of management; surgery may be useful in refractory cases. Functional anorectal pain syndromes are defined by clinical features and categorized into three subtypes. In proctalgia fugax, the pain is typically fleeting and lasts for seconds to minutes. In levator ani syndrome (LAS) and unspecified anorectal pain the pain lasts more than 30 minutes, but in LAS there is puborectalis tenderness. Functional defecation disorders are defined by >2 symptoms of chronic constipation or irritable bowel syndrome with constipation, and with >2 features of impaired evacuation i.e., abnormal evacuation pattern on manometry, abnormal balloon expulsion test or impaired rectal evacuation by imaging. It includes two subtypes; dyssynergic defecation and inadequate defecatory propulsion. Pelvic floor biofeedback therapy is effective for treating LAS and defecatory disorders.

Functional Anorectal Disorders

This report defines criteria and reviews the epidemiology, pathophysiology, and management of common anorectal disorders: fecal incontinence (FI), functional anorectal pain and functional defecation disorders. FI is defined as the recurrent uncontrolled passage of fecal material for at least 3 months. The clinical features of FI are useful for guiding diagnostic testing and therapy. Anorectal manometry and imaging are useful for evaluating anal and pelvic floor structure and function. Education, antidiarrheals and biofeedback therapy are the mainstay of management; surgery may be useful in refractory cases. Functional anorectal pain syndromes are defined by clinical features and categorized into three subtypes. In proctalgia fugax, the pain is typically fleeting and lasts for seconds to minutes. In levator ani syndrome (LAS) and unspecified anorectal pain the pain lasts more than 30 minutes, but in LAS there is puborectalis tenderness. Functional defecation disorders are defined by >2 symptoms of chronic constipation or irritable bowel syndrome with constipation, and with >2 features of impaired evacuation i.e., abnormal evacuation pattern on manometry, abnormal balloon expulsion test or impaired rectal evacuation by imaging. It includes two subtypes; dyssynergic defecation and inadequate defecatory propulsion. Pelvic floor biofeedback therapy is effective for treating LAS and defecatory disorders.

Impact of fecal incontinence and its treatment on quality of life in women

Fecal incontinence (FI) is a physically and psychosocially debilitating disorder which negatively impacts quality of life (QOL). It bears a significant burden not only on patients but also on their families, caretakers as well as society as a whole. Even though it is considered a somewhat common condition, especially as women age, the prevalence is often underestimated due to patients' reluctance to report symptoms or seek care. The evaluation and treatment of FI can be also hindered by lack of understanding of the current management options among healthcare providers and how they impact on QOL. This article provides a comprehensive review on the impact of FI and its treatment on QOL in women.

Epidemiology, pathophysiology, and classification of fecal incontinence: state of the science summary for the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) workshop

In August 2013, the National Institutes of Health sponsored a conference to address major gaps in our understanding of the epidemiology, pathophysiology, and management of fecal incontinence (FI) and to identify topics for future clinical research. This article is the first of a two-part summary of those proceedings. FI is a common symptom, with a prevalence that ranges from 7 to 15% in community-dwelling men and women, but it is often underreported, as providers seldom screen for FI and patients do not volunteer the symptom, even though the symptoms can have a devastating impact on the quality of life. Rough estimates suggest that FI is associated with a substantial economic burden, particularly in patients who require surgical therapy. Bowel disturbances, particularly diarrhea, the symptom of rectal urgency, and burden of chronic illness are the strongest independent risk factors for FI in the community. Smoking, obesity, and inappropriate cholecystectomy are emerging, potentially modifiable risk factors. Other risk factors for FI include advanced age, female gender, disease burden (comorbidity count, diabetes), anal sphincter trauma (obstetrical injury, prior surgery), and decreased physical activity. Neurological disorders, inflammatory bowel disease, and pelvic floor anatomical disturbances (rectal prolapse) are also associated with FI. The pathophysiological mechanisms responsible for FI include diarrhea, anal and pelvic floor weakness, reduced rectal compliance, and reduced or increased rectal sensation; many patients have multifaceted anorectal dysfunctions. The type (urge, passive or combined), etiology (anorectal disturbance, bowel symptoms, or both), and severity of FI provide the basis for classifying FI; these domains can be integrated to comprehensively characterize the symptom. Several validated scales for classifying symptom severity and its impact on the quality of life are available. Symptom severity scales should incorporate the frequency, volume, consistency, and nature (urge or passive) of stool leakage. Despite the basic understanding of FI, there are still major knowledge gaps in disease epidemiology and pathogenesis, necessitating future clinical research in FI.

Dutch evidence statement for pelvic physical therapy in patients with anal incontinence

INTRODUCTION AND HYPOTHESIS

To promote agreement among and support the quality of pelvic physiotherapists' skills and clinical reasoning in The Netherlands, an Evidence Statement Anal Incontinence (AI) was developed based on the practice-driven problem definitions outlined. We present a summary of the current state of knowledge and formulate recommendations for a methodical assessment and treatment for patients with AI, and place the evidence in a broader perspective of current developments.

METHODS

Electronic literature searches were conducted in relevant databases with regard to prevalence, incidence, costs, etiological and prognostic factors, predictors of response to therapy, prevention, assessment, and treatment. The recommendations have been formulated on the basis of scientific evidence and where no evidence was available, recommendations were consensus-based.

RESULTS

The evidence statement incorporates a practice statement with corresponding notes that clarify the recommendations, and accompanying flowcharts, describing the steps and recommendations with regard to the diagnostic and therapeutic process. The diagnostic process consists of history-taking and physical examination supported by measurement instruments. For each problem category for patients with AI, a certain treatment plan can be distinguished dependent on the presence of pelvic floor dysfunction, awareness of loss of stools, comorbidity, neurological problems, adequate anorectal sensation, and (in)voluntary control. Available evidence and expert opinion support the use of education, pelvic floor muscle training, biofeedback, and electrostimulation in selected patients.

CONCLUSIONS

The evidence statement reflects the current state of knowledge for a methodical and systematic physical therapeutic assessment and treatment for patients with AI.

Current and emerging treatment options for fecal incontinence

Fecal incontinence (FI) is a multifactorial disorder that imposes considerable social and economic burdens. The aim of this article is to provide an overview of current and emerging treatment options for FI. A MEDLINE search was conducted for English-language articles related to FI prevalence, etiology, diagnosis, and treatment published from January 1, 1990 through June 1, 2013. The search was extended to unpublished trials on ClinicalTrials.gov and relevant publications cited in included articles. Conservative approaches, including dietary modifications, medications, muscle-strengthening exercises, and biofeedback, have been shown to provide short-term benefits. Transcutaneous electrical stimulation was considered ineffective in a randomized clinical trial. Unlike initial studies, sacral nerve stimulation has shown reasonable short-term effectiveness and some complications. Dynamic graciloplasty and artificial sphincter and bowel devices lack randomized controlled trials and have shown inconsistent results and high rates of explantation. Of injectable bulking agents, dextranomer microspheres in non-animal stabilized hyaluronic acid (NASHA Dx) has shown significant improvement in incontinence scores and frequency of incontinence episodes, with generally mild adverse effects. For the treatment of FI, conservative measures and biofeedback therapy are modestly effective. When conservative therapies are ineffective, invasive procedures, including sacral nerve stimulation, may be considered, but they are associated with complications and lack randomized, controlled trials. Bulking agents may be an appropriate alternative therapy to consider before more aggressive therapies in patients who fail conservative therapies.

Anal acoustic reflectometry predicts the outcome of percutaneous nerve evaluation for faecal incontinence

BACKGROUND

Sacral nerve stimulation (SNS) is effective for some patients with faecal incontinence. Before insertion of a costly implant, percutaneous nerve evaluation (PNE) is undertaken to identify patients likely to report success from SNS. The aim of this study was to determine whether variables of anal sphincter function measured by anal acoustic reflectometry (AAR) could predict the outcome of PNE for faecal incontinence.

METHODS

Women with faecal incontinence undergoing PNE were recruited. AAR, followed by anal manometry, was performed on the day of surgery, immediately before PNE. The outcome of PNE was determined by bowel diary results and incontinence severity score. Patients with a successful PNE outcome were compared with those with an unsuccessful outcome; logistic regression analysis was used to identify any independent predictors of success.

RESULTS

Fifty-two patients were recruited, of whom 32 (62 per cent) had a successful PNE outcome and 20 (38 per cent) an unsuccessful outcome. The AAR variable opening pressure was significantly greater in patients who subsequently had a successful PNE result compared with the pressure in patients who did not (28 versus 17 cmH2 O; P = 0·008). No difference was seen in the manometric equivalent, maximum resting pressure. Opening pressure was an independent predictor of success with an odds ratio of 1·08 (95 per cent confidence interval 1·01 to 1·16; P = 0·018).

CONCLUSION

AAR is a sensitive test of sphincter function and can identify differences between patients who respond to PNE and those who do not. Opening pressure is an independent predictor of success in PNE, and may be of value in the selection of patients for this expensive treatment option.

Prevalence, trends, and risk factors for fecal incontinence in United States adults, 2005-2010

BACKGROUND & AIMS

We investigated the prevalence of and trends and risk factors for fecal incontinence (FI) in the United States among non-institutionalized adults from 2005 to 2010.

METHODS

We analyzed data from 14,759 participants in the U.S. National Health and Nutrition Examination Survey (49% women, 20 years or older) from 2005 to 2010 (the FI Severity Index was added in 2005-2006). FI was defined as accidental leakage of solid or liquid stool or mucus at least once in preceding month. Sampling weights were used to obtain estimates for the national population. Logistic regression was used to identify risk factors for FI.

RESULTS

The prevalence of FI among non-institutionalized U.S. adults was 8.39% (95% confidence interval, 7.76-9.05). It was stable throughout the study period: 8.26% in 2005-2006, 8.48% in 2007-2008, and 8.41% in 2009-2010. FI resulted in release of liquid stool in most cases (6.16%). Prevalence increased with age from 2.91% among 20- to 29-year-old participants to 16.16% (14.15%-18.39%) among participants 70 years and older. Independent risk factors for FI included older age, diabetes mellitus, urinary incontinence, frequent and loose stools, and multiple chronic illnesses. FI was more common among women only when they had urinary incontinence.

CONCLUSIONS

FI is a common problem among non-institutionalized U.S. adults. Its prevalence remained stable from 2005-2010. Diabetes mellitus and chronic diarrhea are modifiable risk factors. Future studies on risk factors for FI should assess for presence of urinary incontinence.

What's New in the Toolbox for Constipation and Fecal Incontinence?

Constipation and fecal incontinence (FI) are common complaints predominantly affecting the elderly and women. They are associated with significant morbidity and high healthcare costs. The causes are often multi-factorial and overlapping. With the advent of new technologies, we have a better understanding of their underlying pathophysiology which may involve disruption at any levels along the gut-brain-microbiota axis. Initial approach to management should always be the exclusion of secondary causes. Mild symptoms can be approached with conservative measures that may include dietary modifications, exercise, and medications. New prokinetics (e.g., prucalopride) and secretagogues (e.g., lubiprostone and linaclotide) are effective and safe in constipation. Biofeedback is the treatment of choice for dyssynergic defecation. Refractory constipation may respond to neuromodulation therapy with colectomy as the last resort especially for slow-transit constipation of neuropathic origin. Likewise, in refractory FI, less invasive approach can be tried first before progressing to more invasive surgical approach. Injectable bulking agents, sacral nerve stimulation, and SECCA procedure have modest efficacy but safe and less invasive. Surgery has equivocal efficacy but there are promising new techniques including dynamic graciloplasty, artificial bowel sphincter, and magnetic anal sphincter. Despite being challenging, there are no short of alternatives in our toolbox for the management of constipation and FI.

Developing a new electromyography-based algorithm to diagnose the etiology of fecal incontinence

PURPOSE

For surface electromyography (sEMG) to become widely used in fecal incontinence (FI) etiology assessment, one would have to create a simple, step-by-step, computer-aided, electromyography-based algorithm that would become the basis for a computer-aided diagnosis (CAD) system. Thus, the aim of this work was to develop such an algorithm.

METHODS

Each patient included in the study underwent a structured medical interview, a general physical examination, and a proctological examination. Patients that scored more than 10 points on the fecal incontinence severity index (FISI) underwent further tests that included rectoscopy, anorectal manometry, transanal ultrasonography, multichannel sEMG, and assessment of anal reflexes. Patients with fully diagnosed FI were included into the study group. The control group consisted of healthy volunteers that scored five or less points on the FISI and had no known anal sphincters dysfunction.

RESULTS

Forty-nine patients were qualified to the study group (age ± SD 58.9 ± 13.8). The control group was number- and gender-matched (age ± SD 45.4 ± 15.1). The sensitivity and specificity of classification tree number I, to diagnose neurogenic FI, were 89.5 and 86 %, respectively. For patients with idiopathic FI, these values were 82 and 91 %, respectively. The sensitivity and specificity of classification tree number III, to diagnose neurogenic FI, were 84 and 78 %, respectively. For patients with idiopathic FI, these values were 78 and 87 %, respectively.

CONCLUSIONS

The relative simplicity and low classification costs allow to assume that algorithms based on classification trees I and III will serve to be the basis for a FI etiology CAD system.

Factors associated with care seeking among women with accidental bowel leakage

OBJECTIVE

The aim of this study was to characterize factors associated with care seeking among women with accidental bowel leakage (ABL).

METHODS

A secondary analysis of 938 women with ABL identified in a community-based Internet survey of 5817 US women 45 years or older was performed. Demographics, medical history, incontinence severity, quality of life, coping, and care seeking were assessed using questions derived from validated questionnaires. Accidental bowel leakage was defined as at least 1 episode of stool leakage in the past year in the absence of acute diarrheal illness. Women with ABL were asked, "Have you ever talked to a physician about accidental leakage of stool and/or gas?" and were designated "care seekers" if they responded affirmatively. Factors associated with care seeking on univariate analysis with P < 0.1 were included in a multivariate model.

RESULTS

The response rate overall was 85% (5817/6873) with 1096 women (19%) reporting ABL. Care-seeking data were available for 938 (86%). Of these, 85% were white, 6% were black/African American, 5% were of Hispanic/Latina/Spanish origin, and 4% other; median age was 55 to 59 years (range, 45 to 49, >75 years), and 87% were insured. Only 29% (268/938) of those with ABL sought care. Multivariate analysis demonstrated that care seekers were more likely to have a primary care physician (PCP), to have heard of ABL, and to have suffered longer with more severe leakage.

CONCLUSIONS

More than two thirds of women with ABL do not seek care. Because those with a PCP and those who have heard of the condition are more likely to seek care, educating the public about ABL and encouraging establishment of care and communication with a PCP may decrease silent suffering.

Obstetric sphincter injury interacts with diarrhea and urgency to increase the risk of fecal incontinence in women with irritable bowel syndrome

OBJECTIVES

This study aimed to confirm that fecal urgency and diarrhea are independent risk factors for fecal incontinence (FI), to identify obstetrical risk factors associated with FI in women with irritable bowel syndrome, and to determine whether obstetric anal sphincter injuries interact with diarrhea or urgency to explain the occurrence of FI.

METHODS

The study is a supplement to a diary study of bowel symptoms in 164 female patients with irritable bowel syndrome. Subjects completed daily bowel symptom diaries for 90 consecutive days and rated each bowel movement for stool consistency and presence of urgency, pain, and FI. All female participants from the parent study were invited to complete a telephone-administered 33-item bowel symptom and obstetric history questionnaire, which included the fecal incontinence severity index.

RESULTS

Of the 164 women in the parent study, 115 (70.1%) completed the interview. Seventy-four (45.1%) reported FI on their diary including 34 (29.6%) who reported at least 1 episode per month, 112 (97.4%) reported episodes of urgency, and 106 (92.2%) reported episodes of diarrhea. The mean fecal incontinence severity index score was 13.9 (9.7). On multivariable analysis, FI was significantly associated with parity (P = 0.007), operative abdominal delivery (P = 0.049), obstetrical sphincter lacerations (P = 0.007), fecal urgency (P = 0.005), diarrhea (P = 0.008), and hysterectomy (P = 0.004), but was not associated with episiotomy, pelvic organ prolapse, or urinary incontinence. The synergistic interactions of obstetric anal sphincter laceration with urgency (P = 0.002) and diarrhea (P = 0.004) were significant risk factors for FI.

CONCLUSIONS

Fecal urgency and diarrhea are independent risk factors for FI, and they interact with obstetric anal sphincter laceration to amplify the risk of FI.

Psychological impact and risk factors associated with new onset fecal incontinence

OBJECTIVES

We aim to evaluate the psychological impact and risk factors associated with new onset FI over 12 years in adults over 18 years for the first time in a population-based study.

METHODS

Participants (n = 1775) were a random population sample from Penrith, Australia who responded to a survey in 1997 and completed a 12-year follow-up survey (response rate = 60%). FI was defined as having leakage of stool over the past 12 months. The original and follow-up surveys contained valid questions on demographic, gastrointestinal and psychological symptoms.

RESULTS

114 (11.4%) reported new onset FI at the 12 year follow-up. People who reported FI at the 12 year follow-up were significantly more anxious and depressed. In terms of baseline risk factors only bloating (OR = 1.3; 95%CI 1.0-1.6, P = 0.026) was an independent predictor of developing new onset FI. However, current bowel symptoms measured at follow-up including less likelihood of <3 bowel motions a week, increased urgency and mucus were independently associated with having FI at follow-up.

CONCLUSION

FI is associated with anxiety and depression. Baseline GI symptoms do not appear to be as important as current bowel symptoms in determining who develops FI.

Comparative study of anal acoustic reflectometry and anal manometry in the assessment of faecal incontinence

Background

Anal acoustic reflectometry (AAR) is a reproducible technique providing a novel physiological assessment of anal sphincter function. It may have advantages over conventional anal manometry. The aims of this study were to determine the ability of AAR and anal manometry to identify changes in anal sphincter function in patients with faecal incontinence (FI) and to relate these changes to the severity of FI.

Methods

Women with FI underwent assessment with AAR and anal manometry. All patients completed the Vaizey FI questionnaire and were classified according to symptom type (urge, passive or mixed) and integrity of the anal sphincters. The ability of AAR and anal manometry to correlate with symptom severity was evaluated. AAR was compared with anal manometry in detecting differences in anal sphincter function between symptomatic subgroups, and patients with and without a sphincter defect.

Results

One hundred women with FI were included in the study. The AAR variables opening pressure, opening elastance, closing elastance and squeeze opening pressure correlated with symptom severity, whereas the manometric measurements maximum resting pressure and maximum squeeze pressure did not. Unlike anal manometry, AAR was able to detect differences in anal sphincter function between different symptomatic subgroups, whereas anal manometry was not. An anal sphincter defect was not associated with a significant change in anal sphincter function determined by either AAR or anal manometry.

Conclusion

In the assessment of women with FI, AAR variables correlated with symptom severity and could distinguish between different symptomatic subgroups. AAR may help to guide management in these patients.

Geriatric gynecology: promoting health and avoiding harm

Age increases vulnerability, commonly accompanied by greater reliance on others and susceptibility to maltreatment. Physiologic processes become less resilient; the potential for harm from medical care increases. Awareness of frailty, functional, social, and potential maltreatment issues enables early referrals to help the patient maintain her independence. Health issues that may impede both gynecologic care and self-sufficiency include sensory deficits, physical disability, and cognitive impairment. Speaking slowly and providing contextual information enhance patient comprehension. Cancer screening depends on life expectancy. Osteoporosis treatment requires managing fall risk. Gynecologic symptoms more likely have multiple contributing factors than one etiology. Incontinence is a particularly complex issue, but invariably includes bladder diary assessment and pelvic floor muscle training. Function and frailty measures best predict perioperative morbidity. Communication with the patient, her family, other providers, and health care organizations is an important frontier in avoiding errors and adverse outcomes.

Quality of life impact in women with accidental bowel leakage

BACKGROUND

Accidental bowel leakage (ABL) is associated with negative impact on quality of life (QoL) and many women do not seek care.

OBJECTIVES

To assess current perspectives and QoL among women with ABL; to identify factors associated with severe impact on condition-specific QoL; and to describe care-seeking for ABL.

DESIGN, SETTING AND PARTICIPANTS

Sub-analysis of 1096 women with ABL identified through an internet-based, self-administered survey of 5817 US women ≥ 45 years old.

MAIN OUTCOME MEASURE

Severe impact on QoL was defined as response of 'affects very much' or 'greatly' to any of seven domains within Pelvic Floor Impact Questionnaire.

RESULTS

QoL data were available for 85.6% (938/1096) of women with ABL. Domains relating to frustration, emotional health and participation in social activities demonstrated the greatest negative impact, with 39.2% (95% CI 36.1-42.4%) having overall severe impact. More frequent ABL, faecal urgency, nocturnal bowel movements, FI without warning, stress FI, weekly urinary incontinence and underlying bowel disorder were associated with severe impact on QoL. Of the 28.6% (268/938) of women who spoke to a physician about their ABL, the majority did so with a general practitioner or family physician (56.0%, 150/268). Only 19.0% (51/268) consulted an internist or gastroenterologist [27.2% (73/268)].

CONCLUSIONS

Nearly 40% of adult women with ABL have severe negative impact on QoL, but less than one-third seek care. More than half of those who seek care do so with their primary care provider. Improved awareness of the prevalence and impact of FI by these providers may decrease barriers and improve QoL.

Fecal incontinence in the elderly: FAQ

Fecal incontinence (FI) is a common gastrointestinal (GI) complaint in patients aged 65 years and older. This evidence-based review article discusses the epidemiology, pathophysiology, evaluation, and management of FI in the geriatric population. We emphasize aging-related changes leading to and impacting evaluation and treatment of this symptom while incorporating the core geriatric principles of functional status and management aligned with patient preference and goals of care.

Accidental bowel leakage in the mature women's health study: prevalence and predictors

BACKGROUND

The 2007 National Institutes of Health incontinence consensus panel emphasised the need for classification and identification of persons at risk for faecal incontinence (FI).

OBJECTIVES

To explore the prevalence of FI; to characterise severity and 'bother'; and to identify factors associated with FI in a large sample of community-dwelling women.

DESIGN, SETTING, AND PARTICIPANTS

A cohort of US women ≥ 45 years old was surveyed via an internet-based questionnaire between September 2009 and April 2010.

MAIN OUTCOME MEASURE

Accidental leakage of liquid or solid stool at least once in the last 12 months.

KEY RESULTS

Eighty-five per cent of those surveyed (5817/6873) participated and were predominantly white, well educated and insured. The prevalence of FI at least once in the past year was 18.8% (1096/5817; 95% CI: 17.8-19.9%) and 97% of these women were bothered by this frequency of leakage. Among 938 respondents with FI, 71.1% (667) preferred the term 'accidental bowel leakage' (ABL) over faecal or bowel incontinence. Bowel disorders, urinary incontinence, stroke, age 55-64, diabetes mellitus and prior vaginal delivery were associated with an increased odds of FI, whereas being married, Black or American Indian/Alaska Native race/ethnicity, and income ≥ $40,000 per year were associated with a decreased odds of FI.

CONCLUSIONS

Nearly one-fifth of mature US women suffer from bothersome leakage of stool at least yearly and the overwhelming majority prefer the term 'Accidental Bowel Leakage.' Those with bowel disorders and urinary incontinence are most likely to experience ABL. Incorporating questions regarding ABL or bowel and bladder disorders into routine screening may aid in identifying silent sufferers of ABL.

Obstetric trauma, pelvic floor injury and fecal incontinence: a population-based case-control study

OBJECTIVES

Current concepts based on referral center data suggest that pelvic floor injury from obstetric trauma is a major risk factor for fecal incontinence (FI) in women. In contrast, a majority of community women only develop FI decades after vaginal delivery, and obstetric events are not independent risk factors for FI. However, obstetric events are imperfect surrogates for anal and pelvic floor injury, which is often clinically occult. Hence, the objectives of this study were to evaluate the relationship between prior obstetric events, pelvic floor injury, and FI among community women.

METHODS

In this nested case-control study of 68 women with FI (cases; mean age 57 years) and 68 age-matched controls from a population-based cohort in Olmsted County, MN, pelvic floor anatomy and motion during voluntary contraction and defecation were assessed by magnetic resonance imaging. Obstetric events and bowel habits were recorded.

RESULTS

By multivariable analysis, internal sphincter injury (cases-28%, controls-6%; odds ratio (OR): 8.8; 95% confidence interval (CI): 2.3-34) and reduced perineal descent during defecation (cases-2.6 ± 0.2 cm, controls-3.1 ± 0.2 cm; OR: 1.7; 95% CI: 1.2-2.4) increased FI risk, but external sphincter injury (cases-25%, controls-4%; P<0.005) was not independently predictive. Puborectalis injury was associated (P<0.05) with impaired anorectal motion during squeeze, but was not independently associated with FI. Grades 3-4 episiotomy (OR: 3.9; 95% CI: 1.4-11) but not other obstetric events increased the risk for pelvic floor injury. Heavy smoking (≥ 20 pack-years) was associated (P=0.052) with external sphincter atrophy.

CONCLUSIONS

State-of-the-art imaging techniques reveal pelvic floor injury or abnormal anorectal motion in a minority of community women with FI. Internal sphincter injury and reduced perineal descent during defecation are independent risk factors for FI. In addition to grades 3-4 episiotomy, smoking may be a potentially preventable, risk factor for pelvic floor injury.

Prevalence and predictive factors of fecal incontinence

Background/Aims

Most previous epidemiologic studies about fecal incontinence were performed in specific populations in Korea. We aimed to estimate the prevalence and predictive factors of fecal incontinence in adult Korean population, both men and women aged 20 years and over.

Methods

Subjects who had undergone medical check-up for health screening were enrolled. They completed the structured questionnaires, including demographics, gastrointestinal symptoms, medical and social histories, and also about their bowel habits. Logistic regression models were constructed to identify the predictive factors for having fecal incontinence.

Results

Among the total of 1,149 subjects (mean age, 44.8 ± 10.2 years; 648 males), the overall prevalence of fecal incontinence was 6.4%, while the older group (> 50 years old) showed the higher prevalence than the younger group (≤ 50 years old) (10.4% vs 4.9%, P = 0.001) without gender difference. Most patients had mild fecal incontinence in 78.4%. By multivariate analysis, old ages (Odd ratio [OR], 3.1; 95% confidence interval [CI], 1.9-5.2; P < 0.001), watery stool (OR, 2.8; 95% CI, 1.5-4.9; P = 0.001) and functional diarrhea (OR, 2.7; 95% CI, 1.4-5.4; P = 0.004) were found to be independent predictors for fecal incontinence.

Conclusions

The prevalence of fecal incontinence in Korean adults was 6.4%, and it was significantly more prevalent in older people without any gender difference. Aging and diarrhea were independent predictive factors of fecal incontinence. Therefore, proper control of the bowel pattern would lead to the prevention of fecal incontinence.

Fecal incontinence: mechanisms and management

PURPOSE OF REVIEW

Fecal incontinence is a common condition, which leads to impaired quality of life and huge financial cost at an individual and societal level. Recent studies have identified novel and potentially modifiable risk factors. Newer diagnostic modalities are giving more detailed information about underlying disorders, helping to implement targeted treatment. Many therapeutic options exist, and newer treatments are changing outcomes. This article will review recent developments in mechanisms, diagnosis, and treatment of fecal incontinence.

RECENT FINDINGS

Potentially modifiable risk factors have recently been identified, and should translate to changes in clinical practice and hopefully patient outcomes. These include diarrhea, smoking, and dietary fiber. Advances have been made in anatomical and physiological testing of the anorectum and this may assist in clarifying the diagnosis and guiding management. The long-term benefit of biofeedback has been questioned but patient selection may be key. Novel pharmacological therapies (e.g., clonidine) and minimally invasive surgical procedures are changing outcomes in well selected patients. The development of a magnetic anal sphincter may add a new management alternative in patients who are refractory to conservative management.

SUMMARY

Fecal incontinence remains a clinical challenge. Only a minority of persons with fecal incontinence seek treatment, but for those who do, improved understanding of risk factors coupled with diagnostic techniques and treatments are improving outcomes.