Population-Based Analysis

BACKGROUND AND AIMS

Fecal incontinence (FI) is highly prevalent with substantial impacts on quality of life and healthcare utilization. The impact of obesity on FI remains unclear, with differing conclusions using BMI as 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 2005-2010. 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 7,606 participants were included, with an overall FI prevalence of 9.2%. When stratified by quartiles of body measurements, FI was increasingly prevalent from 1st to 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 to the 1st quartile of body measurements (OR:1.77, CI:1.11-2.80, p=0.017), 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 US adults, whereas BMI was not consistently correlated. This suggests bowel continence may depend more on how body mass is distributed.

Optimizing the Utility of Anorectal Manometry for Diagnosis and Therapy: A Roundtable Review and Recommendations

BACKGROUND & AIMS

Anorectal manometry (ARM) is a comprehensive diagnostic tool for evaluating patients with constipation, fecal incontinence, or anorectal pain; however, it is not widely utilized for reasons that remain unclear. The aim of this roundtable discussion was to critically examine the current clinical practices of ARM and biofeedback therapy by physicians and surgeons in both academic and community settings.

METHODS

Leaders in medical and surgical gastroenterology and physical therapy with interest in anorectal disorders were surveyed regarding practice patterns and utilization of these technologies. Subsequently, a roundtable was held to discuss survey results, explore current diagnostic and therapeutic challenges with these technologies, review the literature, and generate consensus-based recommendations.

RESULTS

ARM identifies key pathophysiological abnormalities such as dyssynergic defecation, anal sphincter weakness, or rectal sensory dysfunction, and is a critical component of biofeedback therapy, an evidence-based treatment for patients with dyssynergic defecation and fecal incontinence. Additionally, ARM has the potential to enhance health-related quality of life and reduce healthcare costs. However, it has significant barriers that include a lack of education and training of healthcare providers regarding the utility and availability of ARM and biofeedback procedures, as well as challenges with condition-specific testing protocols and interpretation. Additional barriers include understanding when to perform, where to refer, and how to use these technologies, and confusion over billing practices.

CONCLUSIONS

Overcoming these challenges with appropriate education, training, collaborative research, and evidence-based guidelines for ARM testing and biofeedback therapy could significantly enhance patient care of anorectal disorders.

[Recent advances in fecal incontinence treatment]

RECENT ADVANCES IN FECAL INCONTINENCE TREATMENT. Anal incontinence is a chronic condition that affects nearly 10% of the general population. When anal leakage concerns the stool and is frequent, the impact on the quality of life is very important. Recent advances in non-invasive medical treatments and in operative approaches make it possible to provide for most patients an anorectal comfort compatible with a social life. The three main challenges for the future lie in the organization of screening for this condition which is still taboo and for which patients do not easily confide, in a better selection of patients to offer the most suitable treatments, and therefore a better understanding of the pathophysiological mechanisms; and finally in the establishment of algorithms which prioritize treatments according to their side effects and their effectiveness.

Efficacy of Supervised Pelvic Floor Muscle Training and Biofeedback vs Attention-Control Treatment in Adults With Fecal Incontinence

BACKGROUND & AIMS

Pelvic floor muscle training (PFMT) in combination with conservative treatment is recommended as first-line treatment for patients with fecal incontinence, although its efficacy is unclear. We investigated whether supervised PFMT in combination with conservative treatment is superior to attention-control massage treatment and conservative treatment in adults with fecal incontinence.

METHODS

We performed a randomized, controlled, superiority trial of patients with fecal incontinence at a tertiary care center at a public hospital in Denmark. Ninety-eight adults with fecal incontinence were randomly assigned to groups that received supervised PFMT and biofeedback plus conservative treatment or attention-control treatment plus conservative treatment. The primary outcome was rating of symptom changes, after 16 weeks, based on scores from the Patient Global Impression of Improvement scale. Secondary outcomes were changes in the Vaizey incontinence score (Vaizey Score), Fecal Incontinence Severity Index, and Fecal Incontinence Quality of Life Scale.

RESULTS

In the intention-to-treat analysis, participants in the PFMT group were significantly more likely to report improvement in incontinence symptoms based on Patient Global Impression of Improvement scale scores (unadjusted odds ratio, 5.16; 95% CI, 2.18-12.19; P = .0002). The PFMT group had a larger reduction in the mean Vaizey Score (reduction, -1.83 points; 95% CI, -3.57 to -0.08; P = .04). There were no significant differences in condition-specific quality of life. In the per-protocol analyses, the superiority of PFMT was increased. No adverse events were reported.

CONCLUSIONS

This randomized controlled trial of adults with fecal incontinence provides support for a superior effect of supervised PFMT in combination with conservative treatment compared with attention-control massage treatment and conservative treatment. We found that participants who received supervised PFMT had 5-fold higher odds of reporting improvements in fecal incontinence symptoms and had a larger mean reduction of incontinence severity based on the Vaizey Score compared with attention control massage treatment. Clinicaltrials.gov no: NCT01705535.

Pelvic Floor Dysfunction And Its Effect On Quality Of Sexual Life

INTRODUCTION

Pelvic floor disorders (PFD) are extremely common; 1 in 3 parous women will experience urinary incontinence, 1 in 2 will develop pelvic organ prolapse, whereas 1 in 10 experience fecal incontinence. PFD are often associated with a significant reduction in women's psychological, social, and sexual well-being.

AIM

To review the current literature on sexual dysfunction related to PFD.

METHODS

A literature search was conducted using PubMed and key words including sexual dysfunction, prolapse, incontinence, pelvic floor dysfunction, and surgical repair.

MAIN OUTCOME MEASURE

The outcome was to identify the nature and severity of sexual dysfunction in women with PFD.

RESULTS

The prevalence of sexual dysfunction is estimated to be around 30-50% in the general population, whereas in women with PFD, the reported incidence rises to 50-83%. The leading factors cited for the reduction in a woman's sexual experience included worries about the image of their vagina for women with pelvic organ prolapse, dyspareunia and coital incontinence in women with urinary incontinence, and fear of soiling when dealing with anal incontinence. Pelvic floor muscle training has been associated with an improvement in sexual function. 11% of parous women will have surgery for pelvic organ prolapse, yet limited data are available on the impact of surgical intervention on sexual function. Native tissue repair of pelvic organ prolapse is associated with an improvement in sexual function, whereas posterior repair with levatorplasty and vaginal mesh repair can increase the risk of postsurgical dyspareunia. Subtotal hysterectomy is not associated with improved sexual function compared with traditional total hysterectomy.

CONCLUSION

It is clear there is an urgent need for further research on the effects of surgery for PFD on sexual function. To date, most studies have focused on anatomic rather than functional outcomes. Verbeek M, Hayward L. Pelvic Floor Dysfunction and Its Effect on Quality of Sexual Life. Sex Med Rev 2019;7:559-564.

If We Don't Ask, They Won't Tell: Screening for Urinary and Fecal Incontinence by Primary Care Providers

BACKGROUND

More than half of older adults experience urinary (UI) or fecal incontinence (FI), but the majority have never discussed symptoms with health care providers. Little is known about primary care providers' (PCPs') screening for UI and FI.

METHODS

We conducted a cross-sectional electronic survey of PCPs within a Midwest academic institution to ascertain and compare PCPs' beliefs, attitudes, and behaviors regarding screening and treatment for UI and FI; determine factors associated with screening for FI; and identify potential barriers to and facilitators of FI screening and treatment.

RESULTS

Among 154 PCPs, the screening rate for UI (75%) was more than double that for FI (35%; P < .001). PCPs believed that both UI and FI screening were important but felt better informed to treat UI (P < .001). Screening for FI was associated with UI screening (OR, 11.27; 95% CI, 4.9-26.0; P < .001); feeling informed to treat FI (OR, 10.21; 95% CI, 1.2-90.0; P = .01); screening verbally (OR, 3.9; 95% CI, 1.9-8.0; P < .001); perceiving screening as important (OR, 3.7; 95% CI, 1.8-7.4; P < .001); using the term, "accidental bowel leakage" (OR, 2.9; 95% CI, 1.2-6.7; P = .02) or "bowel control issues" (OR, 2.2; 95% CI, 1.1-4.5; P = .03); and being a resident (OR, 0.37; 95% CI, 0.16-0.82; P = .02). PCPs reported high interest in patient and provider educational materials about UI and FI.

CONCLUSIONS

Most PCPs screen for UI but not FI. High reported interest in educational materials, coupled with high reported rates of perceived importance of screening for UI and FI, suggests that PCPs welcome informative interventions to streamline diagnosis and treatment.

Surgical Interventions and the Use of Device-Aided Therapy for the Treatment of Fecal Incontinence and Defecatory Disorders

The purpose of this clinical practice update expert review is to describe the key principles in the use of surgical interventions and device-aided therapy for managing fecal incontinence (FI) and defecatory disorders. The best practices outlined in this review are based on relevant publications, including systematic reviews and expert opinion (when applicable). Best Practice Advice 1: A stepwise approach should be followed for management of FI. Conservative therapies (diet, fluids, techniques to improve evacuation, a bowel training program, management of diarrhea and constipation with diet and medications if necessary) will benefit approximately 25% of patients and should be tried first. Best Practice Advice 2: Pelvic floor retraining with biofeedback therapy is recommended for patients with FI who do not respond to the conservative measures indicated above. Best Practice Advice 3: Perianal bulking agents such as intra-anal injection of dextranomer may be considered when conservative measures and biofeedback therapy fail. Best Practice Advice 4: Sacral nerve stimulation should be considered for patients with moderate or severe FI in whom symptoms have not responded after a 3-month or longer trial of conservative measures and biofeedback therapy and who do not have contraindications to these procedures. Best Practice Advice 5: Until further evidence is available, percutaneous tibial nerve stimulation should not be used for managing FI in clinical practice. Best Practice Advice 6: Barrier devices should be offered to patients who have failed conservative or surgical therapy, or in those who have failed conservative therapy who do not want or are not eligible for more invasive interventions. Best Practice Advice 7: Anal sphincter repair (sphincteroplasty) should be considered in postpartum women with FI and in patients with recent sphincter injuries. In patients who present later with symptoms of FI unresponsive to conservative and biofeedback therapy and evidence of sphincter damage, sphincteroplasty may be considered when perianal bulking injection and sacral nerve stimulation are not available or have proven unsuccessful. Best Practice Advice 8: The artificial anal sphincter, dynamic graciloplasty, may be considered for patients with medically refractory severe FI who have failed treatment or are not candidates for barrier devices, sacral nerve stimulation, perianal bulking injection, sphincteroplasty and a colostomy. Best Practice Advice 9: Major anatomic defects (eg, rectovaginal fistula, full-thickness rectal prolapse, fistula in ano, or cloaca-like deformity) should be rectified with surgery. Best Practice Advice 10: A colostomy should be considered in patients with severe FI who have failed conservative treatment and have failed or are not candidates for barrier devices, minimally invasive surgical interventions, and sphincteroplasty. Best Practice Advice 11: A magnetic anal sphincter device may be considered for patients with medically refractory severe FI who have failed or are not candidates for barrier devices, perianal bulking injection, sacral nerve stimulation, sphincteroplasty, or a colostomy. Data regarding efficacy are limited and 40% of patients had moderate or severe complications. Best Practice Advice 12: For defecatory disorders, biofeedback therapy is the treatment of choice. Best Practice Advice 13: Based on limited evidence, sacral nerve stimulation should not be used for managing defecatory disorders in clinical practice. Best Practice Advice 14: Anterograde colonic enemas are not effective in the long term for management of defecatory disorders. Best Practice Advice 15: The stapled transanal rectal resection and related procedures should not be routinely performed for correction of structural abnormalities in patients with defecatory disorders.

Neurogenic Bowel Dysfunction in Patients with Neurogenic Bladder

Patients with primary neurologic conditions often experience urinary and bowel dysfunction due to loss of sensory and/or motor control. Neurogenic bowel dysfunction is frequently characterized by both constipation and fecal incontinence. In general, the management of neurogenic bowel dysfunction has been less well studied than bladder dysfunction despite their close association.. It is widely accepted that establishment of a multifaceted bowel regimen is the cornerstone of conservative management. Continuing assessment is necessary to determine need for more invasive interventions. In the clinical setting, the Urologist may be the principle provider addressing bowel concerns in addition to bladder dysfunction, and furthermore, treatment of one often impacts the other. Future directions should include development of follow up and management guidelines that address the comprehensive care of this patient population.

Factors Associated With Timing of Return to Intercourse After Obstetric Anal Sphincter Injuries

INTRODUCTION

The impact of obstetric perineal trauma on timing of return to intercourse is unclear, although sexual desire is clearly decreased in these women. In addition, studies examining timing of return to intercourse are cross-sectional and therefore cannot delineate potential reasons that patients might delay return to intercourse.

AIM

To identify factors associated with delayed return to intercourse after obstetric anal sphincter injuries.

METHODS

This was a planned secondary analysis of a prospective cohort study of women sustaining obstetric anal sphincter injuries during delivery of a full-term singleton infant. Patients completed the Fecal Incontinence Severity Index at every postpartum visit (1, 2, 6, and 12 weeks) and the Pelvic Organ Prolapse/Incontinence Sexual Questionnaire-12 once resuming vaginal intercourse. Intercourse was considered "delayed" if patients did not resume intercourse by the 12-week visit. This cutoff was chosen because it was subsequent to the 6-week visit, when patients were instructed to return to normal pelvic activity. Continuous variables were compared using the Student t-test (parametric) or Mann-Whitney U-test (non-parametric). The χ(2) test was used for categorical variables. Statistical significance was assigned with a P value less than .05.

MAIN OUTCOME MEASURES

Primary outcome measurements were differences in pelvic floor symptoms on validated surveys between the "delayed" and "not-delayed" groups at the first postpartum visit and at the time the subjects returned to intercourse. We used the Patient Health Questionnaire-9 for depression, the Urinary Distress Inventory-6 and Incontinence Impact Questionnaire-7 for urinary symptoms, the visual analog scale for pain, the Fecal Incontinence Severity Index for bowel symptoms, and the Pelvic Organ Prolapse/Incontinence Sexual Questionnaire-12 at the return to intercourse visit only.

RESULTS

One hundred ninety-nine women were included in this analysis. Most were Caucasian (77%) and primiparous (86%). One hundred nineteen women (60%) did not resume vaginal intercourse until after the 12-week visit and were deemed "delayed." Patients who delayed intercourse scored higher on the Fecal Incontinence Severity Index (more anal incontinence) than those who resumed intercourse before 12 weeks (15.4 ± 12.3 vs 12.0 ± 12.8, P = .02). The delayed group also had worse sexual function, shown as lower Pelvic Organ Prolapse/Incontinence Sexual Questionnaire-12 scores (35.4 ± 5.9 vs 38.4 ± 4.1, P ≤ .001) and persistently higher Fecal Incontinence Severity Index scores (4.1 ± 7.3 vs 1.6 ± 4.4, P = .001), at the first visit after returning to intercourse.

CONCLUSION

Patients with obstetric anal sphincter injuries who do not resume intercourse by 12 weeks postpartum report more severe anal incontinence symptoms and worse sexual function after return to coitus.

Factors that affect consultation and screening for fecal incontinence

BACKGROUND & AIMS

Fecal incontinence (FI) affects 15% of people age 70 years and older, but only 10% to 30% discuss FI with their physicians. We aimed to identify barriers that prevent people from consulting with their physicians, and that prevent physicians from screening for FI.

METHODS

We performed structured interviews of 124 individuals with FI (mean age, 56 y; 87.9% women) recruited from 6 medical offices at the University of North Carolina Hospitals from June 2012 through March 2013. The subjects completed the Fecal Incontinence Severity Index and the Fecal Incontinence Quality of Life Scale questionnaires. Interview questions aimed to determine which patients had consulted physicians for FI. Eleven of the 56 physicians with patients included in the study responded to the survey.

RESULTS

Eighty-eight of the 124 participants consulted with their physicians about FI (consulters). These individuals had a higher incidence of depression than the 36 subjects who did not consult with their physicians about FI (nonconsulters; P = .04), but similar Fecal Incontinence Severity Index scores. A smaller proportion of nonconsulters were aware of available treatments than consulters (P < .01). Fifty-six percent of nonconsulters said their FI was not serious enough to consult a physician. There was no difference between consulters and nonconsulters in embarrassment in talking about FI. Among consulters, 88% initiated the conversation about FI with their physician. Seven of the 11 responding physicians screened for FI, but only screened high-risk patients. The 4 physicians who did not screen for FI were unaware of its prevalence, viewed FI as a low priority, or stated that patients were responsible for reporting their own symptoms.

CONCLUSIONS

Based on surveys of physicians and patients, many patients have insufficient knowledge about the availability and effectiveness of treatments for FI. Some people with FI do not discuss it with their physician because their symptoms are mild, and most prefer physicians to ask them directly about FI. Educating patients and physicians about the prevalence of FI and management strategies may improve consultation rates.

Fecal incontinence in men: Causes and clinical and manometric features

AIM: To determine the causes and characteristics of fecal incontinence in men and to compare these features with those presented by a group of women with the same problem.

METHODS: We analyzed the medical history, clinical and manometric data from 119 men with fecal incontinence studied in our unit and compared these data with those obtained from 645 women studied for the same problem. Response to treatment was evaluated after 6 mo of follow-up.

RESULTS: Fifteen percent of patients studied in our unit for fecal incontinence were male. Men took longer than women before asking for medical help. Ano-rectal surgery was the most common risk factor for men related to fecal incontinence. Chronic diarrhea was present in more than 40% of patients in both groups. Decreased resting and external anal sphincter pressures were more frequent in women. No significant differences existed between the sexes regarding rectal sensitivity and recto-anal inhibitory reflex. In 17.8% of men, all presenting soiling, manometric findings did not justify fecal incontinence. Response to treatment was good in both groups, as 80.4% of patients improved and fecal incontinence disappeared in 13.2% of them.

CONCLUSION: In our series, it was common that men waited longer in seeking medical help for fecal incontinence. Ano-rectal surgery was the major cause of this problem. Chronic diarrhea was a predisposing factor in both sexes. Manometric differences between groups were limited to an increased frequency of hypotony of the external anal sphincter in women. Fecal incontinence was controllable in most patients.

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.

An update on anorectal disorders for gastroenterologists

Gastroenterologists frequently encounter pelvic floor disorders, which affect 10% to 15% of the population. The anorectum is a complex organ that collaborates with the pelvic floor muscles to preserve fecal continence and enable defecation. A careful clinical assessment is critical for the diagnosis and management of defecatory disorders and fecal incontinence. Newer diagnostic tools (eg, high-resolution manometry and magnetic resonance defecography) provide a refined understanding of anorectal dysfunctions and identify phenotypes in defecatory disorders and fecal incontinence. Conservative approaches, including biofeedback therapy, are the mainstay for managing these disorders; new minimally invasive approaches may benefit a subset of patients with fecal incontinence, but more controlled studies are needed. This mini-review highlights advances, current concepts, and controversies in the area.