Prospective cohort study of high-volume transanal irrigation in patients with constipation and/or faecal incontinence.

AIM: The aim of this work was to determine the clinical efficacy of high-volume transanal irrigation (TAI) in patients with constipation and/or faecal incontinence using validated symptom and quality of life questionnaires. METHOD: This was a prospective cohort study of 114 consecutive patients with constipation and/or faecal incontinence (Rome IV defined) who started TAI. A comprehensive questionnaire was completed at baseline and 4, 12, 26 and 52 weeks' follow-up. The primary objective was significant symptom reduction [≥30%; Cleveland Clinic Constipation Score (CCCS) and St Marks Incontinence Score (SMIS)] in those who continued TAI at 52 weeks. Secondary objectives were (1) continuation rates of TAI, (2) effect on quality of life (QoL) and (3) identification of predictors for continuation. RESULTS: A total of 59 (51.8%) patients with constipation, 26 (22.8%) with faecal incontinence and 29 (25.4%) with coexistent symptoms were included. At 52 weeks, 41 (36.0%) patients continued TAI, 63 (55.2%) stopped and 10 (8.8%) patients were lost to follow-up. In those who continued TAI at 52 weeks (n = 41), no reduction of constipation symptoms was observed. Median Patient Assessment of Constipation Quality of Life scores decreased on most domains, indicating QoL improvement. Reduction of faecal incontinence occurred in 5/9 (55.6%) patients with faecal incontinence and in 3/10 (30.0%) patients with coexistent symptoms. The median SMIS per-individual decreased in patients with coexistent symptoms (2; interquartile range 0-4; p = 0.023). Median Fecal Incontinence Quality of Life scores increased in most domains, indicating improved QoL. No clinical characteristics predicted continuation. CONCLUSION: One-third (n = 41) of patients continued TAI at 52 weeks. In those who continued TAI at 52 weeks, symptoms of faecal incontinence (SMIS) were reduced but not constipation (CCCS). QoL related to both constipation and faecal incontinence improved. No clinical characteristics predicted continuation.

Hemorrhoidectomy versus rubber band ligation in grade III hemorrhoidal disease: a large retrospective cohort study with long-term follow-up.

PURPOSE: Standard therapy for grade III hemorrhoids is rubber band ligation (RBL) and hemorrhoidectomy. The long-term clinical and patient-reported outcomes of these treatments in a tertiary referral center for proctology were evaluated. METHODS: A retrospective analysis was performed in all patients with grade III hemorrhoids who were treated between January 2013 and August 2018. Medical history, symptoms, reinterventions, complications, and patient-reported outcome measurements (PROM) were retrieved from individual electronic patient files, which were prospectively entered as standard questionnaires in our clinic. RESULTS: Overall, 327 patients (163 males) were treated by either RBL (n=182) or hemorrhoidectomy (n=145). The median follow-up was 44 months. The severity of symptoms and patient preference led to the treatment of choice. The most commonly experienced symptoms were prolapse (83.2%) and blood loss (69.7%). Hemorrhoidectomy was effective in 95.9% of the cases as a single procedure, while a single RBL procedure was only effective in 51.6%. In the RBL group, 34.6% received a second RBL session. Complications were not significantly different, 11 (7.6%) after hemorrhoidectomy versus 6 (3.3%) after RBL. However, 4 fistulas developed after hemorrhoidectomy and none after RBL (P<0.05). The pre-procedure PROM score was higher in the hemorrhoidectomy group whereas the post-procedure PROM score did not significantly differ between the groups. CONCLUSION: Treatment of grade III hemorrhoids usually requires more than one session RBL whereas 1-time hemorrhoidectomy suffices. Complications were more common after hemorrhoidectomy. The patient-related outcome did not differ between procedures.

Efficacy of Permacol injection for perianal fistulas in a tertiary referral population: poor outcome in patients with complex fistulas.

AIM: Injection of Permacol collagen paste can be used as a sphincter-sparing treatment for perianal fistulas. In a tertiary referral population we aimed to evaluate the efficacy of Permacol injection and the clinical and fistula-related factors associated with recurrence. METHOD: This was a retrospective analysis of consecutive patients with perianal fistulas treated with Permacol injection at a specialist centre between June 2015 and April 2019. Endoanal ultrasonography was systematically reanalysed, blinded to treatment outcome. Rectovaginal, anovaginal and Crohn's disease fistulas were excluded. Healed fistulas were defined as absent anal symptoms and a closed external opening on physical examination at a minimum follow-up of 6 months. Regression analyses were performed to identify factors associated with unhealed fistulas. RESULTS: A total of 90 patients (51 men; median age 45 years) were analysed. Seventy-two (80.0%) patients had complex perianal fistulas (greater than one-third sphincter involvement or multiple tracts). After a single Permacol injection, fistulas were healed in 20 (22.2%) patients at 3 months follow-up and in 18 (20.0%) patients at a median follow-up of 30 months (interquartile range 17-37). Eight (11.1%) patients with unhealed fistulas had significant improvement in their symptoms. Complex fistulas were significantly associated with unhealed status [OR 3.53 (95% CI 1.12-11.09); p = 0.031]. Twenty patients underwent subsequent Permacol injections, which were successful in six (30.0%) patients after one (n = 3) or two (n = 3) additional injections. CONCLUSION: This largest study to date in patients with mainly complex perianal fistulas, demonstrated that the efficacy of a single Permacol injection was only 20%. Complex fistulas were associated with a poor outcome.

Nurse- and Pelvic Floor Physical Therapist-Led Bowel Training in Patients With Fecal Incontinence in a Tertiary Care Center.

Little is known about nurse- and pelvic floor physical therapist-led bowel training in fecal incontinence after previous conservative management has been deemed unsatisfactory. The objective of this study was to evaluate combined nurse- and physical therapist-led bowel training sessions in a tertiary care center. This was a prospective, cross-sectional study. All patients with fecal incontinence between 2015 and 2016 with and without previous conservative management were included. Combined conservative treatment was defined as the use of stool-bulking agents (psyllium fibers) with or without antidiarrheal medication (loperamide) in combination with biofeedback or pelvic floor muscle training. Questionnaires regarding fecal incontinence (Vaizey incontinence score) and quality of life (Short Form Health Survey-36) were used. A decrease in the Vaizey incontinence score of 5 or more points was deemed to be clinically significant. Vaizey incontinence scores in all 50 patients decreased from 14.7 (SD = 4.5) to 9.9 (SD = 4.8) at follow-up (p < .001). Forty percent of patients reported an improvement in their Vaizey incontinence score (change of 5 or more points). Improvement was noted in those with and without previous treatment. Quality of life improved significantly. The limitation of the study includes lack of a standardized treatment protocol. Fecal incontinence reduced after nurse- and physical therapist-led bowel training sessions in patients with and without previous treatment, increasing their quality of life.

Solitary rectal ulcer syndrome.

PURPOSE OF REVIEW: Solitary rectal ulcer syndrome (SRUS) is a rare disease which can puzzle the gastroenterologist. A review of the syndrome and new treatment options are discussed. RECENT FINDINGS: Its association with dyssynergia in general supports an important role for pelvic floor biofeedback, which can be successful in patients with SRUS. No other novel. SUMMARY: Awareness of this benign syndrome is important; endoscopic diagnosis and histological confirmation opens the way to a guided lifestyle therapy with regulation of defecation and pelvic floor biofeedback. A reluctance to proceed to surgery seems warranted. VIDEO ABSTRACT.

A systematic review and meta-analysis of disease severity and risk of recurrence in young versus elderly patients with left-sided acute diverticulitis.

Young patients are thought to have a more severe disease course and a higher rate of recurrent diverticulitis. However, these understandings are mainly based on studies with important limitations. This review aimed to clarify the true natural history of acute diverticulitis in young patients compared to elderly patients. PubMed and MEDLINE were searched for studies reporting outcomes on disease severity or recurrences in young and elderly patients with a computed tomography-proven diagnosis of acute diverticulitis. Twenty-seven studies were included. The proportion of complicated diverticulitis at presentation (21 studies) was not different for young patients (age cut-off 40-50 years) compared to elderly patients [risk ratio (RR) 1.19; 95% confidence interval 0.94-1.50]. The need for emergency surgery (11 studies) or percutaneous abscess drainage (two studies) yielded comparable results for both groups with a RR of 0.93 (95% confidence interval 0.70-1.24) and 1.65 (95% confidence interval 0.60-4.57), respectively. Crude data on recurrent diverticulitis rates (12 studies) demonstrated a significantly higher RR of 1.47 (95% confidence interval 1.20-1.80) for young patients. Notably, no association between age and recurrent diverticulitis was found in the studies that used survival analyses, taking length of follow-up per age group into account. In conclusion, young patients do not have a more severe course of acute diverticulitis. Published data on the risk of recurrent diverticulitis in young patients are conflicting, but those with the most robust design do not demonstrate an increased risk. Therefore, young patients should not be treated more aggressively nor have a lower threshold for elective surgery just because of their age.

The international anorectal physiology working group (IAPWG) recommendations: Standardized testing protocol and the London classification for disorders of anorectal function.

BACKGROUND: This manuscript summarizes consensus reached by the International Anorectal Physiology Working Group (IAPWG) for the performance, terminology used, and interpretation of anorectal function testing including anorectal manometry (focused on high-resolution manometry), the rectal sensory test, and the balloon expulsion test. Based on these measurements, a classification system for disorders of anorectal function is proposed. METHODS: Twenty-nine working group members (clinicians/academics in the field of gastroenterology, coloproctology, and gastrointestinal physiology) were invited to six face-to-face and three remote meetings to derive consensus between 2014 and 2018. KEY RECOMMENDATIONS: The IAPWG protocol for the performance of anorectal function testing recommends a standardized sequence of maneuvers to test rectoanal reflexes, anal tone and contractility, rectoanal coordination, and rectal sensation. Major findings not seen in healthy controls defined by the classification are as follows: rectoanal areflexia, anal hypotension and hypocontractility, rectal hyposensitivity, and hypersensitivity. Minor and inconclusive findings that can be present in health and require additional information prior to diagnosis include anal hypertension and dyssynergia. CONCLUSIONS AND INFERENCES: This framework introduces the IAPWG protocol and the London classification for disorders of anorectal function based on objective physiological measurement. The use of a common language to describe results of diagnostic tests, standard operating procedures, and a consensus classification system is designed to bring much-needed standardization to these techniques.

3D high-resolution anorectal manometry in patients with perianal fistulas: comparison with 3D-anal ultrasound.

BACKGROUND: Perianal fistula surgery can damage the anal sphincters which may cause faecal incontinence. By measuring regional pressures, 3D-HRAM potentially provides better guidance for surgical strategy in patients with perianal fistulas. The aim was to measure regional anal pressures with 3D-HRAM and to compare these with 3D-EUS findings in patients with perianal fistulas. METHODS: Consecutive patients with active perianal fistulas who underwent both 3D-EUS and 3D-HRAM at a clinic specialised in proctology were included. A group of 30 patients without fistulas served as controls. Data regarding demographics, complaints, previous perianal surgical procedures and obstetric history were collected. The mean and regional anal pressures were measured with 3D-HRAM. Fistula tract areas detected with 3D-EUS were analysed with 3D-HRAM by visual coding and the regional pressures of the corresponding and surrounding area of the fistula tract areas were measured. The study was granted by the VUmc Medical Ethical Committee. RESULTS: Forty patients (21 males, mean age 47) were included. Four patients had a primary fistula, 19 were previously treated with a seton/abscess drainage and 17 had a recurrence after previously performed fistula surgery. On 3D-HRAM, 24 (60%) fistula tract areas were good and 8 (20%) moderately visible. All but 7 (18%) patients had normal mean resting pressures. The mean resting pressure of the fistula tract area was significantly lower compared to the surrounding area (47 vs. 76 mmHg; p < 0.0001). Only 2 (5%) patients had a regional mean resting pressure < 10 mmHg of the fistula tract area. Using a Δ mean resting pressure ≥ 30 mmHg difference between fistula tract area and non-fistula tract area as alternative cut-off, 21 (53%) patients were identified. In 6 patients 3D-HRAM was repeated after surgery: a local pressure drop was detected in one patient after fistulotomy with increased complaints of faecal incontinence. CONCLUSIONS: Profound local anal pressure drops are found in the fistula tract areas in patients normal mean resting pressures. Fistulotomy may affect local sphincter pressure. This might influence surgical decision making in future.

Temperature-Controlled Delivery of Radiofrequency Energy in Fecal Incontinence: A Randomized Sham-Controlled Clinical Trial.

BACKGROUND: Controlled delivery of radiofrequency energy has been suggested as treatment for fecal incontinence. OBJECTIVE: The aim of this study was to determine whether the clinical response to the radiofrequency energy procedure is superior to sham in patients with fecal incontinence. DESIGN: This was a randomized sham-controlled clinical trial from 2008 to 2015. SETTING: This study was conducted in an outpatient clinic. PATIENTS AND METHODS: Forty patients with fecal incontinence in whom maximal conservative management had failed were randomly assigned to receiving either radiofrequency energy or sham procedure. MAIN OUTCOME MEASURES: Fecal incontinence was measured using the Vaizey incontinence score (range, 0-24). The impact of fecal incontinence on quality of life was measured by using the fecal incontinence quality-of-life score (range, 1-4). Measurements were performed at baseline and at 6 months. Anorectal function was evaluated using anal manometry and anorectal endosonography at baseline and at 3 months. RESULTS: At baseline, Vaizey incontinence score was 16.8 (SD 2.9). At t = 6 months, the radiofrequency energy group improved by 2.5 points on the Vaizey incontinence score compared with the sham group (13.2 (SD 3.1), 15.6 (SD 3.3), p = 0.02). The fecal incontinence quality-of-life score at t = 6 months was not statistically different. Anorectal function did not show any alteration. LIMITATIONS: Patients with severe fecal incontinence were included in the study, thus making it difficult to generalize the results. CONCLUSIONS: Both radiofrequency energy and sham procedure improved the fecal incontinence score, the radiofrequency energy procedure more than sham. Although statistically significant, the clinical impact for most of the patients was negligible. Therefore, the radiofrequency energy procedure should not be recommended for patients with fecal incontinence until patient-related factors associated with treatment success are known. See Video Abstract at http://links.lww.com/DCR/A373.

Validation of Risk Factors for Fecal Incontinence in Patients With Crohn's Disease.

BACKGROUND: Fecal incontinence has a great impact on daily life, and many patients are reluctant to report it. OBJECTIVE: The purpose of this study was to estimate the prevalence of fecal incontinence in patients with Crohn's disease, validate risk factors, and relate outcome with quality of life. DESIGN: The design was cross-sectional. SETTINGS: The study was conducted at an academic tertiary center. PATIENTS: Consecutive patients with Crohn's disease treated between 2003 and 2013 were included in this study. MAIN OUTCOME MEASURES: A questionnaire was sent out in October 2013 to evaluate perianal disease, current symptoms of fecal incontinence, and its impact on quality of life (Fecal Incontinence Quality of Life questionnaire). Risk factors were validated with univariate and multivariate analyses. RESULTS: The questionnaire was responded by 325 (62%) of 528 patients. Median age was 42 years (range, 18-91 y), 215 (66%) were women, and a diagnosis of Crohn's disease was established for a median period of 12 years (interquartile range, 6-21 y). Fecal incontinence was reported by 65 patients (20%). Fecal incontinence was associated with liquid stools (p = 0.0001), previous IBD-related bowel resections (p = 0.001), stricturing behavior of disease (p = 0.02), and perianal disease (p = 0.03). Quality of life (lifestyle, coping, depression, and embarrassment) was poor in patients with fecal incontinence, particularly in patients with more frequent episodes of incontinence. LIMITATIONS: There was no correction for disease activity in the multivariate regression analysis. CONCLUSIONS: The prevalence of fecal incontinence in a tertiary population with Crohn's disease is substantially higher than in the community-dwelling population. Considering the reduced quality of life in incontinent patients, active questioning to identify fecal incontinence is recommended in those with liquid stools, perianal disease, or previous (intestinal or perianal) surgery. See Video Abstract at http://journals.lww.com/dcrjournal/Pages/videogallery.aspx.

Endoanal ultrasound in perianal fistulae and abscesses.

Endoanal ultrasound is a technique that provides imaging of the anal sphincters and its surrounding structures as well as the pelvic floor. However, endoanal magnetic resonance imaging (MRI) is preferred by most physicians, although costs are higher and demand easily outgrows availability. Endoanal ultrasound is an accurate imaging modality delineating anatomy of both cryptoglandular as well as Crohn perianal fistula and abscess. Endoanal ultrasound is comparable with examination under anesthesia and equally sensitive as endoanal MRI in fistula detection. When fistula tracts or abscesses are located above the puborectal muscle, an additional endoanal MRI should be performed. Preoperative imaging is advocated in recurrent cryptoglandular fistula because a more complex pattern can be expected. Endoanal ultrasound can help avoid missing tracts during surgery, lowering the chance for the fistula to persist or recur. It can easily be performed in an outpatient setting and endosonographic skills are quickly incremented. Costs are low and endoanal ultrasound has the potential to improve outcome of patients with both cryptoglandular and fistulizing Crohn disease; therefore, it values more attention.

Anorectal complications and function in patients suffering from inflammatory bowel disease: a series of patients with long-term follow-up.

AIM: The aim of this study is to describe the long-term course of anorectal complains and function in a single centre cohort patients suffering from inflammatory bowel disease (IBD) with perianal lesions. METHODS: Between 1993 and 2000, 56 IBD patients (43 Crohn's disease and 13 ulcerative colitis) with perianal complaints underwent anorectal function evaluation (AFE) (baseline). For follow-up, they were approached between 2010 and 2012 by sending questionnaires including Inflammatory Bowel Disease Quality of Life Questionnaire (IBDQ), Perianal Disease Activity Index (PDAI), faecal incontinence scale (Vaizey) and an invitation for AFE. RESULTS: At follow-up, 46 patients (82 %) were available, 9 (16 %) were lost and 1 (2 %) had died. Thirty patients returned the questionnaires of which 17 also underwent AFE. The remaining 16 patients were interviewed by phone and were only willing to mention their anorectal complaints. Median follow-up was 14 year. In 25 of the 46 patients (54 %), perianal complaints persisted faecal incontinence (n = 7); soiling (n = 13) and active fistula (n = 5). Eighteen (39 %) patients had an active fistula at baseline and three persisted at follow-up. Two developed a new fistula. Mean IBDQ, Vaizey and PDAI were 178 (SD 29), 7 (SD 5) and 4.2 (SD 3.0), respectively. In 17 patients, who underwent AFE, anal endosonography showed healing in nine of the ten fistulas. Anal pressures as well as rectal capacity remained unaltered in the individual patient, but showed a large range within the group. CONCLUSION: After 14 years, 54 % of the IBD patients with perianal lesions still have mild complaints. The quality of life remained moderate over a long period, which is concerning.

Temperature-controlled radiofrequency energy in patients with anal incontinence: an interim analysis of worldwide data.

BACKGROUND: Controlled delivery of radiofrequency energy (SECCA procedure) as treatment for anal incontinence (AI) was introduced 15 years ago. Since then, several clinical studies have emerged. This article evaluates the clinical response and sustainability of SECCA for patients with AI. METHODS: Only original clinical studies retrieved from PubMed and Medline were included. The outcome measures, faecal incontinence scores, definition of response, clinical results and anorectal evaluation were analysed. RESULTS: Ten studies were included, which involved 150 original patients. Three studies reported a long-term follow-up. The one-year follow-up shows a moderate effect, which declines somewhat over time. Only minor temporary side-effects are reported and none of the patients declined treatment. CONCLUSION: SECCA is a safe and well-tolerated procedure that is easy to perform without any serious short- or long-term complications, but with only a moderate clinical effect that declines over time. Results of randomized, sham-controlled controlled trials are awaited.

Guidelines of diagnostics and treatment of acute left-sided colonic diverticulitis.

BACKGROUND: The incidence of acute left-sided colonic diverticulitis (ACD) is increasing in the Western world. To improve the quality of patient care, a guideline for diagnosis and treatment of diverticulitis is needed. METHODS: A multidisciplinary working group, representing experts of relevant specialties, was involved in the guideline development. A systematic literature search was conducted to collect scientific evidence on epidemiology, classification, diagnostics and treatment of diverticulitis. Literature was assessed using the classification system according to an evidence-based guideline development method, and levels of evidence of the conclusions were assigned to each topic. Final recommendations were given, taking into account the level of evidence of the conclusions and other relevant considerations such as patient preferences, costs and availability of facilities. RESULTS: The natural history of diverticulitis is usually mild and treatment is mostly conservative. Although younger patients have a higher risk of recurrent disease, a higher risk of complications compared to older patients was not found. In general, the clinical diagnosis of ACD is not accurate enough and therefore imaging is indicated. The triad of pain in the lower left abdomen on physical examination, the absence of vomiting and a C-reactive protein >50 mg/l has a high predictive value to diagnose ACD. If this triad is present and there are no signs of complicated disease, patients may be withheld from further imaging. If imaging is indicated, conditional computed tomography, only after a negative or inconclusive ultrasound, gives the best results. There is no indication for routine endoscopic examination after an episode of diverticulitis. There is no evidence for the routine administration of antibiotics in patients with clinically mild uncomplicated diverticulitis. Treatment of pericolic or pelvic abscesses can initially be treated with antibiotic therapy or combined with percutaneous drainage. If this treatment fails, surgical drainage is required. Patients with a perforated ACD resulting in peritonitis should undergo an emergency operation. There is an ongoing debate about the optimal surgical strategy. CONCLUSION: Scientific evidence is scarce for some aspects of ACD treatment (e.g. natural history of ACD, ACD in special patient groups, prevention of ACD, treatment of uncomplicated ACD and medical treatment of recurrent ACD), leading to treatment being guided by the surgeon's personal preference. Other aspects of the management of patients with ACD have been more thoroughly researched (e.g. imaging techniques, treatment of complicated ACD and elective surgery of ACD). This guideline of the diagnostics and treatment of ACD can be used as a reference for clinicians who treat patients with ACD.

[Summary of the practice guideline on diverticulitis in the colon: diagnostics and treatment in specialty care]. / Samenvatting richtlijn diverticulitis van het colon: diagnostiek en behandeling in de tweede lijn.

The natural course of diverticulitis is usually mild and often requires only conservative treatment. The combination of pain in the lower left abdomen on physical examination, the absence of vomiting and a CRP > 50 mg/l is highly predictive of diverticulitis; further investigation by means of imaging may then be omitted. An initial ultrasound - and CT scanning only if this investigation proves negative or inconclusive - provides the best results in terms of imaging. There is no evidence substantiating the efficacy of routine antibiotic administration to patients with clinically mild and uncomplicated diverticulitis. Pericolic or pelvic abscesses can initially be treated with antibiotics, possibly in combination with percutaneous drainage; surgical intervention is only necessary if this treatment regimen fails. A patient with perforated diverticulitis resulting in peritonitis should undergo an operation; the optimal surgical strategy is currently under debate.

[Women with chronic constipation: clinical examination is more important than anorectal function testing]. / Vrouwen met chronische obstipatie: lichamelijk onderzoek belangrijker dan anorectaal functieonderzoek.

Chronic constipation is a common disorder, particularly in women and the elderly. Physical examination of patients with constipation should include rectal examination and in women also vaginal examination. The patient is asked to relax, contract and bear down on the pelvic floor during inspection of the anal region as well as during the rectal examination. Patients can be considered to have a hypertonic pelvic floor when they have difficulty in relaxing or no relaxation at all during straining on three consecutive attempts. Physical examination reveals potentially treatable conditions such as a rectocele or pelvic floor hypertonia in 40% of women with chronic constipation. Anorectal manometry and anal endosonography provide little added value to physical examination in women with chronic constipation. Anorectal function testing should be reserved for selected cases.

Haemorrhoids, rectal prolapse, anal fissure, peri-anal fistulae and sexually transmitted diseases.

Anorectal disorders like haemorrhoids, rectal prolapse, anal fissures, peri-anal fistulae and sexually transmitted diseases are bothersome benign conditions that warrant special attention. They, however, can all be diagnosed by inspection or proctoscopy (sexually transmitted proctitis). Constipation can play an underlying role in haemorrhoids, rectal prolapse and anal fissures, and it is important to treat these conditions in order to avoid recurrences. Haemorrhoids and anal fissures are generally treated conservatively and surgery is seldom required. Rectal prolapse and cryptoglandular peri-anal fistulae are treated surgically. In a recurrent peri-anal fistula, the fistular tract needs to be visualised with anal ultrasound or magnetic resonance imaging (MRI). There are different techniques available for this evaluation, and care must be taken not to damage the anal sphincter. Peri-anal fistulae in Crohn's disease are treated conservatively and surgery is only required in cases with abscesses. Sexually transmitted proctitis needs to be adequately recognised and treated according to the infectious agent.

Endoanal ultrasound in benign anorectal disorders: clinical relevance and possibilities.

Endoanal ultrasound is a well-established technique used to evaluate benign anorectal disorders. The technique is easy to perform, has a short learning curve and causes very little discomfort. Reconstruction of 3D images is possible. The clinical indications for endoanal ultrasound in benign anorectal diseases are fecal incontinence and peri-anal fistula. Sphincter defects can be depicted with precision and correlate perfectly with surgical findings. Furthermore, an impression of sphincter atrophy can be established. With perianal fistula the tracts can be visualized. Introducing hydrogen peroxide via the external fistula opening improves imaging. Endoanal ultrasound and MRI have comparable results in diagnosing anorectal disorders.

Rectal prolapse, rectal intussusception, rectocele, solitary rectal ulcer syndrome, and enterocele.

Rectal prolapse is best diagnosed by physical examination and by having the patient strain as if to defecate; a laparoscopic rectopexy is the preferred treatment approach. Intussusception is more an epiphenomena than a defecatory disorder and should be managed conservatively. Solitary rectal ulcer syndrome is a consequence of chronic straining and therapy should be aimed at restoring a normal bowel habit with behavioral approaches including biofeedback therapy. Rectocele correction may be considered if it can be definitively established that it is a cause of defecation disorder and only after conservative measures have failed. An enterocele should only be operated when pain and heaviness are predominant symptoms and it is refractory to conservative therapy.