Community-based prevalence of anal incontinence

Sacral nerve stimulation can be successful in patients with ultrasound evidence of external anal sphincter disruption

PURPOSE

This study was designed to determine whether patients with fecal incontinence and endoanal ultrasound evidence of anal sphincter disruption may be successfully treated by sacral nerve stimulation.

METHODS

Five consecutive females with incontinence to solids and endoanal ultrasound evidence of anal sphincter disruption were treated by a two-week trial of sacral nerve stimulation. If successful, patients then proceeded to permanent sacral nerve stimulation implantation.

RESULTS

Five patients, aged 34 to 56 years, were treated by temporary sacral nerve stimulation. Four had symptoms starting after childbirth. Two had previously had an anterior sphincter repair. After a two-week trial, three females reported full continence and an improvement in all aspects of their Rockwood fecal incontinence quality of life scores. These three females underwent permanent sacral nerve stimulation implantation. The remaining two patients reported no improvement and underwent dynamic graciloplasty or end colostomy respectively.

CONCLUSIONS

Sacral nerve stimulation may successfully restore bowel continence in some patients with endoanal ultrasound evidence of a defect in their external anal sphincter.

Anal sphincter defects in patients with fecal incontinence: endoanal versus external phased-array MR imaging

PURPOSE

To prospectively compare external phased-array magnetic resonance (MR) imaging with endoanal MR imaging in depicting external and internal anal sphincter defects in patients with fecal incontinence and to prospectively evaluate observer reproducibility in the detection of external and internal anal sphincter defects with both MR imaging techniques.

MATERIALS AND METHODS

The medical ethics committees of both participating hospitals approved the study, and informed consent was obtained. Thirty patients (23 women, seven men; mean age, 58.7 years; range, 37-78 years) with fecal incontinence underwent MR imaging with both endoanal and external phased-array coils. MR images were evaluated by three radiologists with different levels of experience for external and internal anal sphincter defects. Measures of inter- and intraobserver agreement of both MR imaging techniques and of differences between both imaging techniques were calculated.

RESULTS

Both MR imaging techniques did not significantly differ in the depiction of external (P > .99) and internal (P > .99) anal sphincter defects. The techniques corresponded in 25 (83%) of 30 patients for the depiction of external anal sphincter defects and in 28 (93%) of 30 patients for the depiction of internal anal sphincter defects. Interobserver agreement was moderate to good for endoanal MR imaging and poor to fair for external phased-array MR imaging. Intraobserver agreement ranged from fair to very good for both imaging techniques.

CONCLUSION

External phased-array MR imaging is comparable to endoanal MR imaging in the depiction of clinically relevant anal sphincter defects. Because of the weak interobserver agreement, both MR imaging techniques can be recommended in the diagnostic work-up of fecal incontinence only if sufficient experience is available.

Fecal incontinence: a review of prevalence and obstetric risk factors

Anal incontinence (AI) is a significant problem that causes social and hygienic inconvenience. The true prevalence of AI is difficult to estimate due to inconsistencies in research methods, but larger studies suggest a rate of 2-6% for incontinence to stool. There is a significant association between sonographically detected anal sphincter defects and symptoms of AI. The intrapartum factors most consistently associated with a higher risk of AI include: forceps delivery, third or fourth degree tears, and length of the second stage of labor. Fetal weight of > 4,000 g is also associated with AI. Repair of the sphincter can be performed in either an overlapping or an end-to-end fashion, with similar results for both methods. The role of cesarean delivery for the prevention of AI remains unclear, and further study should be devoted to this question.

Injectable bulking agents for treating faecal incontinence

BACKGROUND

Reports of the use of injectable bulking agents for faecal incontinence are currently confined to a small number of pilot studies. However, the use of these agents is rapidly becoming widespread based on this limited knowledge.

METHODS

This review provides an overview of the products available and the methods of delivery based on the pilot studies, selected articles reporting experience of these agents in urology, plastic surgery and laryngology, and some animal studies.

RESULTS AND CONCLUSIONS

Although bulking agents have been used to treat urinary incontinence for over four decades, their use in faecal incontinence has so far been limited. The large choice of products now available and the lack of a defined injection strategy will hamper efforts to produce meaningful prospective randomized trials.

Contemporary appraisal of radical perineal prostatectomy

PURPOSE

In the age of minimally invasive surgery there has been renewed interest in the perineal approach for the surgical treatment of prostate cancer. We reviewed recent publications regarding radical perineal prostatectomy (RPP) in an effort to define its role in the current management of localized prostate malignancy. At the same time we reviewed the relevant perineal anatomy and surgical approach necessary to perform this operation.

MATERIALS AND METHODS

We performed a review of the literature with respect to RPP and included our own extensive experience with this operation, emphasizing patient selection, the current role of pelvic lymph node dissection, surgical anatomy, oncological outcomes and complications.

RESULTS

RPP is an effective treatment for localized adenocarcinoma of the prostate with oncological outcomes similar to those of the retropubic technique. In comparison to RRP, patients undergoing RPP have less postoperative discomfort, more rapid return of bowel function, more rapid return to work and a decreased transfusion rate. In addition, RRP is now often performed with cavernous nerve sparing. Prostate specific antigen screening has made the rate of lymph node metastasis low enough to omit lymphadenectomy in many cases.

CONCLUSIONS

There is still a role for RPP in the treatment of localized prostate cancer. Erectile dysfunction after nerve sparing and incontinence rates are similar to those of RRP. In addition, it is less morbid then RRP without being as technically challenging as laparoscopic radical prostatectomy.

Quality of life measures for fecal incontinence and their use in children

BACKGROUND

Fecal incontinence is a common problem within society from childhood through to the elderly. Its clinical assessment has focussed on severity and frequency of soiling episodes but it is increasingly recognized to have an impact on physical, psychological and social well-being (quality of life [QOL]). This is likely to be particularly important in childhood. The aim of the present study was to critically evaluate the development and application of disease-specific QOL measures, focusing particularly on their use in children.

METHODS

Generally recognized disease-specific QOL measures for fecal incontinence were identified and their generation and validation were critically evaluated.

RESULTS

Six instruments were identified: Ditesheim and Templeton QOL Scoring System, Manchester Health Questionnaire, Hirschsprung's Disease/Anorectal Malformation Quality of Life Questionnaire (HAQL), Gastrointestinal Quality of Life Index (GIQLI), Fecal Incontinence TyPE Specification, and the Fecal Incontinence Quality of Life Scale (FIQL). Although the FIQL appeared to be the better tool for adults with fecal incontinence because it was brief and had the best validity and reliability, it needed further modification to become appropriate for use in children. In particular, items relating to sexual activity were inappropriate.

CONCLUSION

Neither the FIQL nor other disease-specific instruments met basic psychometric standards for use in children with fecal incontinence. Substantial revision of currently available instruments will be required to meet the needs of this population.

Prevalence and correlates of fecal incontinence in community-dwelling older adults

OBJECTIVES

To determine prevalence and correlates of fecal incontinence in older community-dwelling adults.

DESIGN

A cross-sectional, population-based survey.

SETTING

Participants interviewed at home in three rural and two urban counties in Alabama from 1999 to 2001.

PARTICIPANTS

The University of Alabama at Birmingham Study of Aging enlisted 1,000 participants from the state Medicare beneficiary lists. The sample was selected to include 25% black men, 25% white men, 25% black women, and 25% white women.

MEASUREMENTS

The survey included sociodemographic information, medical conditions, health behaviors, life-space assessment (mobility), and self-reported health status. Fecal incontinence was defined as an affirmative response to the question "In the past year, have you had any loss of control of your bowels, even a small amount that stained the underwear?" Severity was classified as mild if reported less than once a month and moderate to severe if reported once a month or greater.

RESULTS

The prevalence of fecal incontinence in the sample was 12.0% (12.4% in men, 11.6% in women; P=.33). Mean age+/-standard deviation was 75.3+/-6.7 and ranged from 65 to 106. In a forward stepwise logistic regression analysis, the following factors were significantly associated with the presence of fecal incontinence in women: chronic diarrhea (odds ratio (OR)=4.55, 95% confidence interval (CI)=2.03-10.20), urinary incontinence (OR=2.65, 95% CI=1.34-5.25), hysterectomy with ovary removal (OR=1.93, 95% CI=1.06-3.54), poor self-perceived health status (OR=1.88, 95% CI=1.01-3.50), and higher Charlson comorbidity score (OR=1.29, 95% CI=1.07-1.55). The following factors were significantly associated with fecal incontinence in men: chronic diarrhea (OR=6.08, 95% CI=2.29-16.16), swelling in the feet and legs (OR=3.49, 95% CI=1.80-6.76), transient ischemic attack/ministroke (OR=3.11, 95% CI=1.30-7.41), Geriatric Depression Scale score greater than 5 (OR=2.83, 95% CI=1.27-6.28), living alone (OR=2.38, 95% CI=1.23-4.62), prostate disease (OR=2.29, 95% CI=1.04-5.02), and poor self-perceived health (OR=2.18, 95% CI=1.13-4.20). The following were found to be associated with increased frequency of fecal incontinence in women: chronic diarrhea (OR=6.39, 95% CI=2.25-18.14), poor self-perceived health (OR=5.37, 95% CI=1.75-16.55), and urinary incontinence (OR=4.96, 95% CI=1.41-17.43). In men, chronic diarrhea (OR=5.38, 95% CI=1.77-16.30), poor self-perceived health (OR=3.91, 95% CI=1.39-11.02), lower extremity swelling (OR=2.86, 95% CI=1.20-6.81), and decreased assisted life-space mobility (OR=0.73, 95% CI=0.49-0.80) were associated with more frequent fecal incontinence.

CONCLUSION

In community-dwelling older adults, fecal incontinence is a common condition associated with chronic diarrhea, multiple health problems, and poor self-perceived health. Fecal incontinence should be included in the review of systems for older patients.

Trastornos del suelo pélvico

The pelvic floor is one of the most complex structures of the human body. Historically, the approach to pelvic floor disease has been "vertical": the anterior compartment was the domain of urologists, the middle compartment was the domain of gynecologists with frequent incursions into the female anterior compartment, and the posterior compartment was reserved for surgeons. In the last few years, a change has occurred in the philosophy underpinning the management of these diseases with the development of an integrative "cross sectional" approach which affects the physiology, physiopathology, and the definition of these diseases as an integrated structure, and which includes urinary and fecal incontinence, pelvic organ prolapse, alterations in the perception of urinary tract emptying, chronic constipation, sexual dysfunctions, and several chronic pain syndromes in the perineal area. We believe that the efforts of the various professionals involved in the treatment of these disorders should be pooled and that pelvic floor units should be created. These units should be characterized by a multidisciplinary approach, since the skills and knowledge necessary for the management of these patients requires teams composed of professionals with a broad range of competencies.

Anal incontinence in women presenting for gynecologic care: prevalence, risk factors, and impact upon quality of life

OBJECTIVE

The purpose of this study was to estimate the prevalence and impact upon quality of life of anal incontinence (AI) in women aged 18 to 65.

STUDY DESIGN

Consecutive women presenting for general gynecologic care were given a bowel function questionnaire. Women with AI were prompted to complete the Fecal Incontinence Severity Index (FISI) and Fecal Incontinence Quality of Life Scale (FIQL).

RESULTS

The cohort was composed of 457 women with a mean age of 39.9 +/- 11 years. AI prevalence was 28.4% (95% CI 24.4-32.8). After logistic regression, IBS (OR 3.22, 1.75-5.93), constipation (OR 2.11, 1.22-3.63), age (OR 1.05, 1.03-1.07), and BMI (OR 1.04, 1.01-1.08) remained significant risk factors. The mean FISI score was 20.4 +/- 12.4. Women with only flatal incontinence scored higher, and women with liquid loss scored lower on all 4 scales of the FIQL.

CONCLUSION

AI is prevalent in women seeking benign gynecologic care, and liquid stool incontinence has the greatest impact upon quality of life.

Neuromodulation for constipation and fecal incontinence

The evidence is consistent with permanent SNM substantially improving continence in patients with severe fecal incontinence resistant to medical treatment. This treatment has been used in patients in whom a major surgical intervention would normally have been the next stage in treatment and the option of a minimally invasive treatment, with the added advantage of testing before definitive implantation, has the potential to have a major impact on this patient group. The results of the early case series examining the use of SNM for constipation are encouraging. Patients who have failed maximal medical treatment for constipation pose considerable clinical difficulties, with current surgical treatments requiring a bowel resection or stoma formation. If SNM proves to be of benefit to a proportion of these patients, this will be of considerable importance in terms of their future treatment options. Fecal incontinence and idiopathic constipation are both conditions in which conservative treatment is the mainstay of treatment in most cases,but for a small proportion surgical intervention is warranted. The surgical procedures available,however, have a considerable invasive component with often little guarantee of symptom resolution. SNM is becoming more widely used for patients with fecal incontinence as series sizes get larger and follow-up longer. Its potential benefit in constipation has been shown in pilot studies but larger trials are still required.

Risk of Recurrence of Anal Sphincter Lacerations

OBJECTIVE

To estimate the rate of recurrence of anal sphincter lacerations in subsequent pregnancies and analyze the risk factors associated with recurrent lacerations

METHODS

Data were obtained from the Pennsylvania Health Care Cost Containment Council, Division of In-Patient Statistics, regarding all cases of third- and fourth-degree perineal lacerations that occurred during a 2-year period (from January 1990 through December 1991). All subsequent pregnancies in this group of women over the next 10 years were identified, and the rate of recurrence of sphincter tears and risk factors for recurrence were analyzed.

RESULTS

The rate of anal sphincter lacerations was 7.31% (n = 18,888) during the first 2 years of study (1990-1991). In the next 10 years, these patients with prior lacerations were delivered of 16,152 pregnancies. Of these, 1,162 were by cesarean. Among the 14,990 subsequent vaginal deliveries, 864 (5.76%) had a recurrence of a third- or fourth-degree laceration. Women with prior fourth-degree lacerations had a much higher rate of recurrence than those with prior third-degree laceration (7.73% versus 4.69%). The rate for recurrent lacerations was significantly lower than the rate for initial lacerations (odds ratio 1.29, 95% confidence interval [CI] 1.2-1.4). Forceps delivery with episiotomy had the highest risk for recurrent laceration (17.7%, odds ratio 3.6, 95% CI 2.6-5.1), whereas vacuum use without episiotomy had the lowest risk (5.88%, odds ratio 1.0, 95% CI 0.6-1.7).

CONCLUSION

Prior anal sphincter laceration does not appear to be a significant risk factor for recurrence of laceration. Operative vaginal delivery, particularly with episiotomy, increases the risk of recurrent laceration as it does for initial laceration.

LEVEL OF EVIDENCE

III.

Preservation of fecal continence and bowel function after radical perineal and retropubic prostatectomy: a questionnaire-based outcomes study

PURPOSE

To assess fecal incontinence rates and bowel function for radical perineal (RPP) or radical retropubic (RRP) prostatectomy patients and to compare them with a matched control group.

METHODS

The bowel function domain of the Expanded Prostate Cancer Index Composite (EPIC) was mailed to 150 consecutive patients who had undergone RPP (79) or RRP (71) by the same surgeon (HJK) and an age-matched control group (75).

RESULTS

Fecal incontinence and bowel dysfunction were statistically equivalent for the study groups.

CONCLUSIONS

There is no difference in fecal incontinence rates or bowel function when comparing RPP patients to RRP or control patients.

Validity and reliability of the Modified Manchester Health Questionnaire in assessing patients with fecal incontinence

PURPOSE

To date, no measures of fecal incontinence severity or its impact on quality of life have been validated for telephone interview. This study was designed to 1) compare responses of a self-administered and a telephone-administered Fecal Incontinence Severity Index; 2) compare a self-administered Fecal Incontinence Quality of Life Scale to the Manchester Health Questionnaire after modifying the latter for telephone administration and American English (Modified Manchester Health Questionnaire); 3) assess test-retest reliability of the telephone-administered Modified Manchester Health Questionnaire; and 4) assess the internal consistency of the Modified Manchester Health Questionnaire subscales.

METHODS

Consecutive, English-speaking, nonpregnant females known to have fecal incontinence were invited to participate. Two validated paper questionnaires accompanied the letter informing them of the study: Fecal Incontinence Severity Index and Fecal Incontinence Quality of Life Scale. Consenting patients were contacted for the initial telephone administration of the Modified Manchester Health Questionnaire, and patients who agreed to continue the study were contacted for a repeat telephone administration of the Modified Manchester Health Questionnaire two to four weeks after completing the first interview.

RESULTS

Fifty-one females were invited to participate in the study; however, 13 declined or were ineligible. Thirty females, aged 49.3 +/- 10.3 years, returned self-administered questionnaires and completed the first telephone interview, and 21 completed a second telephone interview after an average interval of 23 days. The telephone-administered Fecal Incontinence Severity Index scores were significantly lower than those yielded by the self-administered Fecal Incontinence Severity Index, (6.19 vs. 9.85; P < 0.001), but the telephone and written administrations were significantly correlated (r = 0.5; P < 0.02). Correlations between the Modified Manchester Health Questionnaire quality of life subscales and the paper Fecal Incontinence Quality of Life subscales ranged from 0.6 to 0.9 (median, r = 0.81). The correlation between the total score for the Fecal Incontinence Quality of Life and the total score for the Modified Manchester Health Questionnaire quality of life scales was 0.93 (P < 0.001). Test-retest reliability for the eight Modified Manchester Health Questionnaire subscales ranged from 0.55 to 0.98 (median, r = 0.83), and test-retest reliability for the two telephone administrations of the Fecal Incontinence Severity Index was r = 0.75. Cronbach's alpha for the eight Modified Manchester Health Questionnaire subscales ranged from 0.79 to 0.92 (median, alpha = 0.85).

CONCLUSIONS

Telephone-administered versions of the Modified Manchester Health Questionnaire showed good-to-excellent validity, internal consistency, and test-retest reliability. The telephone-administered Fecal Incontinence Severity Index yielded lower severity scores than the written Fecal Incontinence Severity Index; however, the difference (3.66 units) was not clinically significant.

[Fecal incontinence]

Diagnosis and management of fecal incontinence requires exact understanding of the anatomic and pathophysiologic principles involved and demands a methodical, stepwise approach. Despite the potential appeal of surgical intervention, a considerable number of patients can be helped by comparatively simple, noninvasive measures. Initial treatment should be medical, including biofeedback in combination with a bowel management program. In the presence of a severely denervated pelvic floor, physiotherapeutic techniques rarely give rise to a satisfactory and long-lasting response. Obvious external sphincter defects and patients who failed medical management are treated surgically. Many injuries of the external sphincter can be treated by direct sphincter repair. If patients with intact external sphincters are unresponsive to medical measures, descending perineum and resultant idiopathic fecal incontinence will improve by radio-frequency delivery, sacral nerve stimulation, or postanal plication. Patients with complex neurologic disorders or extensive sphincter defects or who have undergone previous unsuccessful attempts at repair of the puborectalis itself should be considered for dynamic gracilis plastic or an artificial sphincter.

Faecal incontinence in patients with anal fissure: a consequence of internal sphincterotomy or a feature of the condition?

BACKGROUND AND OBJECTIVE

The function of the internal sphincter is disturbed in patients with chronic anal fissure due to persistent hypertonia and it may lead to a certain degree of incontinence. Our aim is to assess the results of lateral internal sphincterotomy and to identify any degree of incontinence related to the disease.

METHODS

This prospective study included a review of all patients operated upon by the authors who performed division of the internal sphincter at or below the upper limit of the fissure. A questionnaire was completed by each patient before surgery and then after surgery with regard to any degree of incontinence such as soiling of underclothes, control of flatus and accidental bowel motion.

RESULTS

126 patients with chronic anal fissure were studied. The male to female ratio was 0.8:1. Minor degrees of incontinence were present prior to surgery in 35 patients (28%) and in 31 (25%) patients after surgery, the majority of them were incontinent before surgery.

CONCLUSION

Based on the results of this study, minor degrees of incontinence could be a symptom of chronic anal fissure and not the sequelae of lateral internal sphincterotomy.

Rectal hypersensitivity worsens stool frequency, urgency, and lifestyle in patients with urge fecal incontinence

PURPOSE

Rectal sensory mechanisms are important in the maintenance of fecal continence. Approximately 50 percent of patients with urge incontinence have lowered rectal sensory threshold volumes (rectal hypersensitivity) on balloon distention. Rectal hypersensitivity may underlie the heightened perception of rectal filling; however, its impact on fecal urgency and incontinence is unknown. This study was designed to investigate the impact of rectal hypersensitivity in patients with urge fecal incontinence.

METHODS

Prospective and retrospective audit review of all patients (n = 258) with an intact native rectum referred to a tertiary colorectal surgical center for physiologic investigation of urge fecal incontinence during a 7.5-year period. Patients with urge fecal incontinence who had undergone pelvic radiotherapy (n = 9) or rectal prolapse (n = 6) were excluded.

RESULTS

A total of 108 of 243 patients (44 percent) were found to have rectal hypersensitivity. The incidence of anal sphincter dysfunction was equal (90 percent) among those with or without rectal hypersensitivity. Patients with urge fecal incontinence and rectal hypersensitivity had increased stool frequency (P < 0.0001), reported greater use of pads (P = 0.003), and lifestyle restrictions (P = 0.0007) compared with those with normal rectal sensation, but had similar frequencies of incontinent episodes.

CONCLUSIONS

Urge fecal incontinence relates primarily to external anal sphincter dysfunction, but in patients with urge fecal incontinence, rectal hypersensitivity exacerbates fecal urgency, and this should be considered in the management and surgical decision in patients who present with fecal incontinence.

A review of contemporary surgical alternatives to permanent colostomy

OBJECTIVES

To review the options available to patients with faecal incontinence with failed conservative treatment and/or failed anal sphincter repair and assessing the current indications and results of these options.

METHODS

A literature search of MEDLINE, EMBASE and Cochrane databases was performed using the relevant search terms.

RESULTS

Continent options for patients with severe or end stage faecal incontinence include the creation of a form of an anal neosphincter and more recently sacral nerve stimulation. Over half the patients, who are candidates, may benefit from these procedures, although long term results of sacral nerve stimulation are unknown. Dynamic graciloplasty improves the continence in 44-79% of the patients. The complications include frequent reoperations, high incidence of infection and obstructive defaecation. The success rates of artificial bowel sphincter vary between 24% and 79%. Once functional, the artificial bowel sphincter seems to improve the continence in the majority of the patients. Device removal due to infection, obstructive defaecation and pain is a frequent problem. Sacral nerve stimulation is claimed to result in improvement in continence in 35-100% of patients. The main risks in this procedure are infection, electrode displacement and pain.

CONCLUSIONS

All these procedures have high complication rates and have moderate success rates only. A major proportion of patients will need reoperations and hence high motivation is necessary for patients who undergo these procedures. A uniform standard for measurement of success is also necessary so that these procedures can be compared with each other.

The Peristeen Anal Plug: a modern solution for an embarrassing problem

Faecal incontinence is a problem that affects over 500,000 people in the UK, but unlike urinary incontinence is rarely spoken about or adequately addressed. The problem may arise from a range of causes, including obstetric trauma, surgery and neurological disorders. Like urinary incontinence, faecal incontinence can be managed. This article discusses one management option--the Peristeen Anal Plug--and illustrates with case histories the beneficial effect proper management of faecal incontinence can have on patients' lives.

Directions for Future Nursing Research on Fecal Incontinence

BACKGROUND

As knowledge of the prevalence and impact of fecal incontinence increases, additional research is needed to improve patient outcomes and support the practice of nurses in this area.

OBJECTIVES

To outline needs for future nursing research on fecal incontinence in aging adults.

METHODS

Existing literature about fecal incontinence was analyzed to generate a plan for future research.

RESULTS

Recommendations for investigation were proposed in the following areas: mechanisms underlying fecal incontinence and common to fecal incontinence and urinary incontinence; assessment of fecal incontinence; management strategies; and tracking a patient's response to fecal incontinence therapies across the healthcare system. Other areas of study identified as priorities included lessening the psychological burden of fecal incontinence, preventing perineal skin problems with appropriate skin care protocols and products, and developing efficacious nursing home routines and environments.

CONCLUSIONS

Increasing the capacity of nursing research focused on fecal incontinence through funding support and recruitment incentives for new investigators is essential to achieve the proposed agenda.

Managing faecal incontinence or leakage: the Peristeen Anal Plug

Incontinence can be a devastating problem to many individuals. It is embarrassing and limiting socially, and prevents those with the problem from going about their day-to-day activities. People adopt coping strategies to manage the problem and those with urinary incontinence often look for containment products such as disposable pads or nappy-style products. These products have been developed using different absorbent materials and are accessible to sufferers in local supermarkets. Absorbency of the products has improved so that once wetted, they hold urine more easily. However, the same cannot be said for faecal incontinence management products and there are few that can be called upon to manage this devastating condition. The Peristeen Anal Plug, developed originally as the Conveen Anal Plug, stands alone in the search for a device to manage faecal incontinence or leakage.

Investigation of the pathophysiology of fecal seepage

BACKGROUND AND AIM

Unintentional seepage of stool without awareness is common but its pathophysiology is poorly understood. Our aim was to examine the underlying mechanism(s) for fecal seepage.

METHODS

We evaluated prospectively 25 patients with fecal seepage, by performing anorectal manometry, balloon expulsion, saline infusion, pudendal nerve latency tests, and symptom assessments and compared their data with 26 fecal incontinence patients and 43 healthy controls.

RESULTS

Predisposing factors for fecal seepage were back injury (7), obstetric injury (6), hemorrhoidectomy (3), pelvic radiotherapy (1), and unknown (8). In the seepage group, the resting and squeeze sphincter pressures were lower (p < 0.02) than healthy controls, but higher (p < 0.002) than incontinent group. During straining, the intrarectal pressure and defecation index were lower (p < 0.05) in the seepage group compared to controls; 72% showed dyssynergia and balloon expulsion time was prolonged (p < 0.01). Threshold for first rectal sensation was impaired (p < 0.002) in the seepage group compared to controls and incontinent group. The seepage group retained more (p < 0.001) saline than the incontinent group but pudendal nerve latency time was impaired (p < 0.05) in both patient groups compared to controls.

CONCLUSIONS

Anal sphincter function and rectal reservoir capacity were relatively well preserved but most patients with seepage demonstrated dyssynergia with impaired rectal sensation and impaired balloon expulsion. Thus, incomplete evacuation of stool may play a significant role in the pathogenesis of seepage.

Perineal puborectalis sling operation for fecal incontinence: preliminary report

PURPOSE

This study was designed to evaluate the safety efficacy, and impact on quality of life of the perineal puborectalis sling operation for fecal incontinence.

METHODS

Since August 2001, we performed the perineal puborectalis sling operation on eight patients with idiopathic fecal incontinence. A specially designed polyester mesh sling was introduced along the puborectalis muscle, from a posterior perianal incision, running to a small suprapubic incision. The ends were tied together with moderate tension. Patients were evaluated with the Fecal Incontinence Severity Index, the Cleveland Clinic Score of Incontinence, and the Fecal Incontinence Quality of Life Scale. Manometry and defecography were performed before and six months after the operation.

RESULTS

Eight patients (7 females; mean age, 63 (range, 44-77) years) were evaluated. A wound infection developed in one patient, which subsided with antibiotics. A rectal ulcer developed in one patient, necessitating sling removal. In the remaining seven patients, the Fecal Incontinence Severity Index improved from 27 to 9, and the Cleveland Clinic Score of Incontinence improved from 13 to 5 (P < 0.05). All parameters in the Fecal Incontinence Quality of Life Scale improved: lifestyle from 2.1 to 3.6; coping/behavior from 1.5 to 3.4; depression/self perception from 2.3 to 3.7; and embarrassment from 2 to 3.6 (P < 0.05). No significant difference was found between preoperative and postoperative maximum resting pressure and maximum squeeze pressure. However, the median anorectal angle on defecography after the operation was significantly reduced (P < 0.05).

CONCLUSIONS

We believe that the perineal puborectalis sling operation is technically feasible, with low morbidity, and can be an effective procedure for idiopathic fecal incontinence.

A prospective, randomized, controlled clinical trial of placement of the artificial bowel sphincter (Acticon Neosphincter) for the control of fecal incontinence

BACKGROUND

Severe fecal incontinence remains a disabling condition for the patient and a major therapeutic challenge for the physician. A series of observational studies have indicated that placement of an artificial bowel sphincter is associated with marked improvement of continence and quality of life. We have performed a prospective, randomized, controlled trial to evaluate the effect of placement of an artificial bowel sphincter (Acticon Neosphincter) on continence and quality of life in a group of severely incontinent adults.

METHODS

Fourteen adults (male:female, 1:13; age range, 44-75 years) were randomized to placement of the artificial bowel sphincter or to a program of supportive care and were followed for six months from operation or entry into the study. The principal outcome measure was the level of continence, measured with the Cleveland Continence Score, which provides a scale from 0 to 20, representing perfect control through to total incontinence. Secondary outcome measures were perioperative and late complications in the artificial bowel sphincter group, and the changes in quality of life in both groups.

RESULTS

In the control group, the Cleveland Continence Score was not significantly altered, with an initial value of 17.1 +/- 2.3 and a final value of 14.3 +/- 4.6 at six months. The artificial bowel sphincter group showed a highly significant improvement, changing from 19.0 +/- 1.2 before placement to 4.8 +/- 4.0 at six months after placement. One patient in the artificial bowel sphincter group had failure of healing of the perineal wound and explantation of the device (14 percent explantation rate). There were two other significant perioperative events of recurring fecal impaction initially after placement in one patient and additional suturing of the perineal wound in another. There were major improvements in the quality of life for all measures in the artificial bowel sphincter group. There was significant improvement in all eight subscales of the Medical Outcome Study Short Form-36 measures. The American Medical Systems Quality of Life score was raised from 39 +/- 6 to 83 +/- 14 and the Beck Depression Inventory showed reduction from a level of mild depression (10.8 +/- 9.3) to a normal value (6.8 +/- 8.7). No significant changes in any of the quality of life measures occurred for the control group.

CONCLUSIONS

Through a prospective, randomized trial format, we have shown that placement of an artificial bowel sphincter is safe and effective when compared with supportive care alone. Perioperative and late problems are likely to continue to occur and between 15 percent and 30 percent of patients may require permanent explantation. For the remainder, the device is easy and discrete to use, highly effective in achieving continence, and able to generate a major improvement in the quality of life.

Geriatric fecal incontinence

Fecal incontinence is a common problem in the elderly population,particularly in nursing homes, and is one of the common reasons for nursing home placement. In addition to the inconvenience of the incontinence for the patient and caregiver, it is associated with increased mortality. Identifiable physiologic changes in the anorectal region may contribute to the development of fecal incontinence.Fecal incontinence is a disorder of men and women, with an equal or greater prevalence in men in advancing years. All patients who have fecal incontinence warrant an initial medical evaluation,including the exclusion of fecal impaction. Cognitively impaired patients benefit most from habit training. Selected elderly patients who have fecal incontinence may benefit from biofeedback and surgical intervention.

Subtypes of anal incontinence associated with bowel dysfunction: clinical, physiologic, and psychosocial characterization

BACKGROUND

We hypothesized that functional anal incontinence with no structural explanation comprises distinct pathophysiologic subgroups that could be identified on the basis of the predominant presenting bowel pattern.

METHODS

Consecutive patients (n = 80) were prospectively grouped by bowel symptoms as 1) incontinence only, 2) incontinence + constipation, 3) incontinence + diarrhea, and 4) incontinence + alternating bowel symptoms. The Hopkins Bowel Symptom Questionnaire, the Symptom Checklist 90-R, and anorectal manometry were completed.

RESULTS

Significant group differences were found between subcategories of incontinent patients on the basis of symptoms. Abdominal pain was more frequent in patients with altered bowel patterns. Patients with alternating symptoms reported the highest prevalence of abdominal pain, rectal pain, and bloating. Basal anal pressures were significantly higher in alternating patients (P = 0.03). Contractile pressures in the distal anal canal were diminished in the incontinent-only and diarrhea groups (P = 0.004). Constipated patients with incontinence exhibited elevated thresholds for the urge to defecate (P = 0.027). Dyssynergia was significantly more frequent in patients with incontinence and constipation or alternating bowel patterns.

CONCLUSIONS

Distinct patterns of pelvic floor dysfunction were identified in patient subgroups with anal incontinence, based on the presence or absence of altered bowel patterns. Physiologic assessments suggested different pathophysiologic mechanisms among the subgroups. The evaluation of patients with fecal incontinence should consider altered bowel function.

Long-term outcome and objective changes of anorectal function after biofeedback therapy for faecal incontinence

BACKGROUND

In the short-term, biofeedback therapy improves symptoms and anorectal function in patients with faecal incontinence but whether there is long-term improvement is incompletely understood.

AIM

To prospectively evaluate bowel symptoms and anorectal function, both immediately and 12 months after biofeedback therapy.

METHODS

A total of 105 consecutive patients (male/female = 12/93) with faecal incontinence, unresponsive to supervised medical treatment were enrolled in biofeedback training consisting of biweekly pelvic muscle strengthening exercises, anal squeeze and sensory-motor coordination training, and reinforcement sessions at 3, 6 and 12 months. Anorectal manometry, saline continence test, stool diaries and bowel satisfaction scores were used to assess improvement.

RESULTS

94/105 (male/female = 10/84) completed training and 11 dropped out. Sixty completed 1-year assessment. At 1-year, 63% reported no episodes of incontinence. Biofeedback decreased (P < 0.001) stool frequency and number of incontinence episodes and increased (P < 0.001) bowel satisfaction score, anal resting and squeeze pressures, squeeze duration and ability to retain saline infusion increased (P < 0.001), both immediately and at 1 year. Sensory thresholds decreased (P < 0.001).

CONCLUSIONS

Biofeedback therapy produced sustained improvement in bowel symptoms and anorectal function. Because it is safe, inexpensive compared with other surgical interventions, and effective, biofeedback should be offered to incontinent patients unresponsive to medical therapy.

Reducing illness transmission from disinfected recreational water venues: swimming, diarrhea and the emergence of a new public health concern

Recreational water-related illnesses are associated with swimming in contaminated water venues. The transmission of diarrheal illness in disinfected settings is influenced by several factors which include: chlorine resistance in waterborne pathogens; poor facility maintenance of disinfectant levels; and lack of healthy swimming habits. Health care providers can help to disseminate healthy swimming messages to their patients and help to prevent and control this emerging public health concern.

Faecal incontinence in adults

Faecal incontinence can affect individuals of all ages and in many cases greatly impairs quality of life, but incontinent patients should not accept their debility as either inevitable or untreatable. Education of the general public and of health-care providers alike is important, because most cases are readily treatable. Many cases of mild incontinence respond to simple medical therapy, whereas patients with more advanced incontinence are best cared for after complete physiological assessment. Recent advances in therapy have led to promising results, even for patients with refractory incontinence. Health-care providers must make every effort to communicate fully with incontinent patients and to help restore their self-esteem, eliminate their self-imposed isolation, and allow them to resume an active and productive lifestyle.

A new questionnaire for constipation and faecal incontinence

BACKGROUND

The prevalence, severity and risk factors of faecal incontinence in women in the community are incompletely characterized.

AIM

To develop and validate a self-report questionnaire (faecal incontinence and constipation assessment) to address these issues.

METHOD

Eighty-three women completed the instrument; 20 randomly selected patients answered the faecal incontinence and constipation assessment again 6 weeks later. A gastroenterologist also completed the faecal incontinence and constipation assessment in all 83 subjects after a detailed clinical assessment. Concurrent validity was evaluated by comparing the patient's self-report to a doctor interview for every question. Reproducibility was evaluated by a test-retest approach for every question. The severity of faecal incontinence was rated by incorporating the frequency and type of faecal incontinence, rectal urgency and use of sanitary devices.

RESULTS

The questionnaire was well-understood. Reproducibility [median kappa statistic, 0.80 (interquartile range: 0.66-0.90)]; and concurrent validity [0.59 (0.47-0.67)] were acceptable. For the index question on faecal incontinence, the kappa for reproducibility and concurrent validity was 0.90 and 0.95, respectively. The faecal incontinence severity score was also valid (kappa = 0.5).

CONCLUSION

The faecal incontinence and constipation assessment has excellent reproducibility and reasonable validity for assessing the presence, risk factors and severity of faecal incontinence and associated bowel disorders in women when compared against clinical assessment.

The impact of incontinence on health-related quality of life in a South Australian population sample

OBJECTIVE

To assess prevalence of incontinence in a South Australian representative population sample and compare the health-related quality-of-life impact of incontinence with other chronic conditions.

METHOD

The 1998 South Australian Health Omnibus Survey interviewed 3,010 male and female respondents aged 15 to 97 years (response rate 70.2%). This representative population survey included questions to determine the prevalence of urinary (stress and urge), and anal (faecal and flatus) incontinence, and other chronic conditions. Respondents also completed the MOS SF-36 questionnaire.

RESULTS

Self-reported prevalence of all types of incontinence was 26.0%. The prevalence of anal and urinary incontinence were 10.5% and 20.3% respectively, with 4.8% of respondents experiencing both. Univariate analysis found the prevalence of incontinence was statistically significantly higher among females, and those who were older, widowed, had no post-school education, and lower incomes. After adjusting for differences in age and sex, it was found that people with incontinence were significantly impaired across all dimensions of the SF-36, scoring in the lowest 42% of the population, compared with those people without incontinence. People with incontinence exhibited different SF-36 profiles to those with other chronic conditions.

CONCLUSIONS

Incontinence is common in South Australia, affecting more than one-quarter of the population, particularly older women (56.2% for 60 years and over). The impact of incontinence on health-related quality of life is characteristically different to that demonstrated by other chronic conditions.

IMPLICATIONS

In an ageing population, identification of the impact of incontinence is necessary to direct policy development and resource allocation to this area.

Anal endosonography and its role in assessing the incontinent patient

Anal endosonography is now recognized as an important investigation in the assessment of faecal incontinence. The endosonographer needs to be aware that the anatomy of the anal sphincter is complex and therefore there can be pitfalls in the interpretation of images. The findings have clinical implications on subsequent management and can contribute to prognosticating outcome. However, anal endosonography has a complementary role and other investigations, such as anal manometry, should be performed before intervention.

Sacral spinal nerve stimulation for faecal incontinence: multicentre study

BACKGROUND

In patients with faecal incontinence in whom conservative treatment fails, options are limited for those with a functionally deficient but morphologically intact sphincter. We investigated the effect of sacral nerve stimulation on continence and quality of life.

METHODS

In this multicentre prospective trial, 37 patients underwent a test stimulation period, followed by implantation of a neurostimulator for chronic stimulation in 34. Effect on continence was assessed by daily bowel-habit diaries over a 3-week period and on quality of life by the disease-specific American Society of Colon and Rectal Surgeons (ASCRS) questionnaire and the standard short form health survey questionnaire (SF-36). Every patient served as his or her own control.

FINDINGS

Frequency of incontinent episodes per week fell (mean 16.4 vs 3.1 and 2.0 at 12 and 24 months; p<0.0001) for both urge and passive incontinence during median follow-up of 23.9 months. Mean number of days per week with incontinent episodes also declined (4.5 vs 1.4 and 1.2 at 12 and 24 months, p<0.0001), as did staining (5.6 vs 2.4 at 12 months; p<0.0001) and pad use (5.9 vs 3.7 at 12 months; p<0.0001). Ability to postpone defecation was enhanced (at 12 months, p<0.0001), and ability to completely empty the bowel was slightly raised during follow-up (at 12 months, p=0.4122). Quality of life improved in all four ASCRS scales (p<0.0001) and in seven of eight SF-36 scales, though only social functioning was significantly improved (p=0.0002).

INTERPRETATION

Sacral nerve stimulation greatly improves continence and quality of life in selected patients with morphologically intact or repaired sphincter complex offering a treatment for patients in whom treatment options are limited.

Review article: Recent trends in diagnosis and treatment of faecal incontinence

The inability to control bowel discharge is not only common but extremely distressing. It has a negative impact on a patient's lifestyle, leads to a loss of self-esteem, social isolation and a diminished quality of life. Faecal incontinence is often due to multiple pathogenic mechanisms and rarely due to a single factor. Normal continence to stool is maintained by the structural and functional integrity of the anorectal unit. Consequently, disruption of the normal anatomy or physiology of the anorectal unit leads to faecal incontinence. Currently, several diagnostic tests are available that can provide an insight regarding the pathophysiology of faecal incontinence and thereby guide management. The treatment of faecal incontinence includes medical, surgical or behavioural approaches. Today, by using logical approach to management, it is possible to improve symptoms and bowel function in many of these patients.

Severity of fecal incontinence in community-living elderly in a health maintenance organization

An anonymous survey containing questions about the severity of fecal incontinence (FI)--frequency, amount, and type--and its correlates was distributed to community-living elderly at four managed-care clinics. Completed surveys were received from 1,352 respondents whose mean (+/-standard deviation) age was 75 +/- 6 years and 60% of whom were female. Approximately 19% reported having FI one or more times within the past year. Incontinence that soiled underwear or was of loose or liquid consistency was most common. More frequent FI and a greater amount of FI were significantly associated with loose or liquid stool consistency, defecation urgency, bowel surgery, and chronic health conditions. Therapies aimed at normalizing stool consistency or reducing urgency may be beneficial in lessening FI severity.

Symptoms of urinary and faecal incontinence among men and women 75+ in relations to health complaints and quality of life

AIMS

The aim was to investigate the prevalence of self-reported symptom of urinary, faecal, and double incontinence (UI, FI, and DI) in men and women 75+ and to identify how other health complaints and Quality of Life (QoL) relate to incontinence symptoms.

METHODS

A randomised sample, stratified for age, of eligible men and women from the population were included in the study and 4,277 out of 8,500 completed a postal questionnaire (61.6% women). The questions focused on difficulties in controlling urine and faeces, other health complaints, socio-economic background, and social relations.

RESULTS

Among all respondents 39% reported symptom of UI (more so among women P < 0.001), symptom of FI in 16.9% (ns between sexes), DI, i.e., a combination of UI and FI, was reported among 14.5% (ns between sexes). Incontinence increased with age, and persons reporting incontinence also had significantly more of all other health complaints compared with persons without incontinence. Those reporting DI comprised an especially vulnerable group. Health complaints associated with UI were communicative and mobility problems, other urinary complaints, dizziness, cough, and fatigue. FI was associated with diarrhoea, stomach pain, fatigue, and other pain. Risk factors for DI were diarrhoea, communication, and mobility problems.

CONCLUSIONS

UI and FI were common among elderly men and women and increased with age. Furthermore, incontinence was associated with many other co-existing health complaints, and the most frail were those with DI.

Prevalence and correlations of anal incontinence and constipation in Taiwanese women

Anal incontinence and constipation are not only physically and psychologically disabling symptoms but also a significant social and public health problem. The epidemiology of anal incontinence and constipation from community-bases remains largely unknown, especially in Asian women. This study is a continuation of a previous survey taken on the epidemiology of urinary incontinence and overactive bladder in Taiwanese women by using a second questionnaire (correlation coefficient for symptoms, r=0.87; P<0.05). We evaluated the prevalence and potential risk factors associated with anal incontinence and constipation in the general population. Of the 1,584 (2.92%) women sampled, 1,253 (79.1%) were successfully interviewed at home. The prevalence of fecal incontinence and flatus incontinence was 35 (2.8%) and 107 (8.6%), respectively. There were 306 (24.5%) participants who reported constipation. However, according to the current medical criteria for constipation, the prevalence of constipation was only 2.7%. The prevalence of anal incontinence did not increase after the age of 65 years (9.7%, including 3.5% of elderly women with fecal incontinence and 6.2% of elderly women with flatus incontinence). The prevalence of constipation significantly increased in the women aged 65 years and over (self-reported prevalence: 32.4%, fitted in medical criteria for constipation: 8.3%). Our results demonstrated that constipation shares some of the same risk factors, namely, symptoms of uterovaginal prolapse, prior gynecologic surgery, and overactive bladder that predispose women to the occurrence of anal incontinence. The questionnaire needs a higher discriminatory capacity, and a longitudinal study should be conducted to clarify this conflict further.

Prevalence of anal incontinence among mothers of multiples and analysis of risk factors

OBJECTIVE

The object of this study was to determine the prevalence of anal incontinence among women with previous multiple pregnancy and childbirth and assess risk factors.

STUDY DESIGN

A 77-item questionnaire was administered to 769 mothers of multiples. Statistical analyses included chi(2), Student t test, and logistic regression.

RESULTS

Seven hundred thirty-three (95.3%) women completed the survey, 94% of them white, with a median age of 37 years. Fecal incontinence affected 10% (6.3% arose during pregnancy, 40.6% after delivery, 53.1% unrelated to childbirth). Although delivery by cesarean section only was associated with lower prevalence in univariate analysis (5.8% vs 11%, P=.02), age was the only significant covariate in multivariate regression (P=.0001). Flatal incontinence affected 25.2% (21.2% during pregnancy, 30.3% after delivery, 48.5% unrelated), increasing with age (P=.0001). Soiling affected 10%, increasing with age (P=.0001).

CONCLUSION

Mothers of multiples reported substantial rates of fecal (10%) and flatal (25.2%) incontinence. Advancing age was the major risk factor. Delivery by cesarean section only was not significantly protective, although elective (before labor) cesarean deliveries were not separately assessed.

Novel surgical approaches to fecal incontinence: neurostimulation and artificial anal sphincter

Neurostimulation, neosphincters with neurostimulation, and implanted artificial sphincters are recently developed therapeutic options for patients with end-stage fecal incontinence. Of these approaches, sacral nerve electric stimulation appears to be the most promising because of its relative simplicity and low morbidity. However, it is best suited for patients with anatomically intact sphincters. The other procedures target patients with gross structural defects in the sphincter but are still in their infancy. In this article we discuss these techniques and review their rationale, mechanisms of action, indications, outcomes, and complications.

Trends and current issues in adult fecal incontinence (FI): Towards enhancing the quality of life for FI patients

Our goals are to review the literature on the definition and epidemiology of fecal incontinence (FI), the risk factors involved, available treatment options, and measurement of the quality of life (QOL) of patients with this condition. Articles included for review were searched following the guidelines set by Cochrane Reviewers' Handbook. FI was defined variously depending upon the duration, type, and amount of leakage. About 17 published papers were reviewed on the prevalence of FI that ranged from 1.4% to 50%. Potential risk factors included perianal injury/surgery, and fair/poor general health. QOL assessment using various grading scales provided an objective method of evaluating patients before and after treatment. Management included medical, physiotherapy, and surgical options. Through the range of various references, a clear definition of FI should be specified, which reflects its epidemiology in the various studies. These differences in definition would significantly affect its prevalence. Many risk factors have been sited but further epidemiological studies are necessary to elucidate FI. Understanding the etiology of the disease is an important initial step to provide adequate treatment of FI. QOL assessment provides objective and subjective method in the analysis of effectiveness of therapy.

Fecal incontinence in the elderly patient

Fecal incontinence is an underreported problem in the general population; it is especially common in elderly persons (aged >or=65 years) residing in the community or in long-term care settings. It affects more women than men during younger years, but this differential narrows with age. Physiological changes such as sphincter muscle and sensory abnormalities in the anorectal region contribute to this problem, as do factors such as dementia, physical disability, and fecal impaction. Treatment with biofeedback is feasible in many elderly patients. Those with advanced dementia or physical disability may benefit from a bowel habit training program. Selected patients may require surgical sphincter repair. Minimally invasive techniques such as radiofrequency energy application offer promising future treatment options. The purpose of this review is to provide current information on fecal incontinence and its management in the elderly.