Use of Antegrade Continence Enema for the Treatment of Fecal Incontinence and Functional Constipation in Adults: A Systematic Review

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

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

Surgery for chronic idiopathic constipation: pediatric and adult patients - a systematic review

BACKGROUND

Chronic idiopathic constipation (CIC) is a substantial problem in pediatric and adult patients with similar symptoms and workup; however, surgical management of these populations differs. We systematically reviewed the trends and outcomes in the surgical management of CIC in pediatric and adult populations.

METHODS

A literature search was performed using Ovid MEDLINE, Embase, Scopus, the Cochrane Central Register of Controlled Trials, and ClinicalTrials.gov between January 1, 1995 and June 26, 2020. Clinical trials and retrospective and prospective studies of patients of any age with a diagnosis of CIC with data of at least 1 outcome of interest were selected. The interventions included surgical resection for constipation or antegrade continence enema (ACE) procedures. The outcome measures included bowel movement frequency, abdominal pain, laxative use, satisfaction, complications, and reinterventions.

RESULTS

Adult patients were most likely to undergo resection (94%), whereas pediatric patients were more likely to undergo ACE procedures (96%) as their primary surgery. Both ACE procedures and resections were noted to improve symptoms of CIC; however, ACE procedures were associated with higher complication and reintervention rates.

CONCLUSION

Surgical management of CIC in pediatric and adult patients differs with pediatric patients receiving ACE procedures and adults undergoing resections. The evaluation of resections and long-term ACE data in pediatric patients should be performed to inform patients and physicians whether an ACE is an appropriate procedure despite high complication and reintervention rates or whether resections should be considered as an initial approach for CIC.

Fecal Incontinence: Pathogenesis, Diagnosis, and Updated Treatment Strategies

Fecal incontinence (FI) is defined as the involuntary loss or passage of solid or liquid stool in patients. FI is a common and debilitating condition in men and women. The incidence increases with age and also often goes unreported to health care providers. It is crucial that providers ask at-risk patients about possible symptoms. Evaluation and management is tailored to specific symptoms and characteristics of the incontinence. If conservative methods fail to improve symptoms, then other surgical options are considered, such as sacral nerve stimulation and anal sphincter augmentation. This review provides an update on current and future therapies.

Antegrade Colonic Enema Channels in Pediatric Patients Using Appendix or Cecal Flap: A Comparative Robotic versus Open series

Introduction We present perioperative outcomes of a single center experience with robotic assisted ACE channel creation for the treatment of chronic constipation refractory to medical therapy and compare it to the traditional open surgical approach. We also demonstrate a step-by-step video presentation of the robotic approach for cecal flap ACE performed as part of a dual continence procedure in patients with short length of appendix. Methods A retrospective chart review of pediatric patients who underwent ACE channel creation between 2008-2020 was performed. We compared demographics, intraoperative, and postoperative variables of the open versus robotic approach. Results Among 28 patients, 15 were open and 13 robotic. In order to construct the ACE channel, a cecal flap was utilized in 36%, split appendix in 50%, full length appendix in 11%, and sigmoid colon in 3% of patients. Both approaches showed equivalent estimated blood loss (50 ml [IQR=20-100]), median length of hospital stay (7 vs. 8 days, p=0.7) and median time to return to regular diet (4 vs. 5 days, p=0.5) (table 1). Patients in the open group were more likely to have a history of prior abdominal surgeries than those in the robotic group (80% vs. 38.5%, p=0.02). The risk of Clavien-Dindo grade 3 or more complications (40% vs. 23.1%, p=0.04) and the rate of ACE channel stenosis (46.7% vs. 7.7%, p=0.02) were significantly higher in the open approach. Channel stenosis was significantly higher in patients with an appendix ACE channel (87.5% vs. 12.5%, p<0.05) compared to those with cecal flap ACE. Conclusions Robotic assisted ACE channel creation is a safe and acceptable alternative with a significantly lower rate of channel stenosis and other Clavien grade 3 complications compared to the traditional open approach. Cecal flaps are also at a lower risk of stomal stenosis than appendix.

Chronic Refractory Constipation in Children: Think Beyond Stools

Chronic refractory constipation (CRC) is defined as children who are unable to pass stools in spite of being on maximum laxative therapy and require daily rectal stimulation in the form of enemas or suppositories to pass stools for >3 months. Children are often referred for treatment of refractory constipation that may result from uncontrolled underlying disease or ineffective treatment. Constipated children can be managed by a variety of medical therapeutic options that yield satisfying results in most cases. However, a subset of constipated children fails to benefit from conventional treatments. On treatment failure or on suspicion of organic disease the patient should be referred for further evaluation. Treatment options for treatment-resistant patients are presented. Pharmalogical and non-pharmalogical treatment modalities are reviewed and an algorithm for refractory constipation in children are presented.

[Low anterior resection syndrome-Causes and treatment approaches]

BACKGROUND

With improvement of the oncological prognosis and more sphincter-preserving procedures for rectal cancer of the lower third, the functional sequelae of anterior rectal resection become more and more predominant and are summarized under the term low anterior resection syndrome (LARS).

MATERIAL AND METHODS

In this narrative review the causes, associated factors, prevalence, diagnostics and treatment strategies are presented based on an evaluation of the international literature.

RESULTS

The central role of the rectum in the physiology of defecation and continence explains the frequency of symptoms following anterior rectal resection. In an unselected patient population a major LARS is to be expected in approximately 40% and a minor LARS in approximately 20%. The most important factor is the length of the remaining rectal stump. The diagnosis of LARS is made clinically and can be quantified by scores, especially by the LARS score. Treatment options range from patient counselling to stoma construction and a symptom-related, stepwise approach is generally accepted.

CONCLUSION

While the evidence for the causes, the quantification and determination of associated factors of LARS is good, the treatment options are based either on experience or on only few studies.

[The paraplegic patient-Characteristics of diagnostics and treatment in visceral surgery]

BACKGROUND

Patients with paraplegia develop syndrome-specific complications relevant to visceral surgery, which occur in the context of the acute spinal shock or as a consequence of the progressive neurogenic bowel dysfunction (NBD) with the formation of an elongated colon and/or megacolon. Moreover, acute abdominal emergencies, such as acute appendicitis, cholecystitis, diverticulitis and ileus images, pose particular challenges for the clinician when the clinical signs are atypical or even absent. The expansion of indications for obesity surgery to include patients with a paraplegic syndrome, whose independence and quality of life can be impaired due to the restricted mobility, especially by obesity, is becoming increasingly more important.

OBJECTIVE

This article provides an overview of the special requirements and aspects in the treatment of this special patient collective and to show the evidence of paraplegia-specific visceral surgery treatment.

MATERIAL AND METHODS

Targeted literature search in Medline and Cochrane library (German and English, 1985-2020).

RESULTS AND CONCLUSION

The clinical treatment of paraplegic patients requires in-depth knowledge of the pathophysiological changes at the different height of the paraplegia (upper versus lower motor neuron) and the phase of the disease (spinal shock versus long-term course). Missing or atypical clinical symptoms of acute diseases delay a quick diagnosis and make early diagnosis essential. The evidence for surgical treatment of the acute and chronic consequences of NBD is based on small retrospective series and case reports, as is that for special indications such as obesity surgery.

Enema-Induced spastic left colon syndrome: An unintended consequence of chronic enema use

BACKGROUND/PURPOSE

Enemas have become a common practice for treating fecal incontinence and severe constipation. Several patients receiving enemas complained of severe, colicky, abdominal pain during enema administration and complained that the duration for fluid to pass was progressively increasing. Contrast studies showed a startling picture of severe right colon dilatation and a spastic, narrow, left colon. An investigation was started to seek the origin and possible management of this condition.

METHODS

Medical and radiologic records were reviewed retrospectively, with emphasis on the type and ingredients of enemas used, the duration the patients had been receiving enemas, and their original diagnosis. A literature review was done on previous reports of this condition and publications related to long-term use of enemas.

RESULTS

This series included 22 patients (average age, 19.6 years; range, 8-54) with fecal incontinence due to anorectal malformations (10 cases), myelomeningocele (5), cloaca (2), severe colonic dysmotility (2), Hirschsprung's disease (2), and sacrococcygeal teratoma (1). The average duration of enema use was 13.7 years (range, 4-45). The composition of the enemas included saline/glycerin (six cases), only saline solution (five), saline/glycerin/soap (four), plain water (three), and one case each of molasses/milk, saline/glycerin/soap/phosphate, saline/phosphate, and only phosphate. The enemas were performed in an antegrade fashion in 21 cases and rectally in 1. All patients had a dilated right colon and a narrow, spastic, left, transverse, and descending colon. Four patients underwent colonoscopy, colonic manometry, and mucosal biopsies, which did not help in explaining the etiology of the problem. In the literature, 43 reports mentioned a "long-term follow-up" for the administration of enemas, but we could not find a description of symptoms, such as in our cases.

CONCLUSIONS

An intriguing and, to our knowledge, previously unreported complication of chronic enema use is presented. We call attention to an overly concerning complication and report our findings in the hope that they will aid and stimulate more investigations into this condition. Several hypotheses to explain the cause are presented, as well as potential treatment options.

Japanese Practice Guidelines for Fecal Incontinence Part 3 -Surgical Treatment for Fecal Incontinence, Fecal Incontinence in a Special Conditions- English Version

In Japan, the surgical treatment for fecal incontinence (FI) can be performed using minimally invasive surgery, such as anal sphincteroplasty and sacral neuromodulation (SNM), as well as antegrade continence enema (ACE), graciloplasty, and stoma construction. In addition, currently, several other procedures, including biomaterial injection therapy, artificial bowel sphincter (ABS), and magnetic anal sphincter (MAS), are unavailable in Japan but are performed in Western countries. The evidence level of surgical treatment for FI is generally low, except for novel procedures, such as SNM, which was covered by health insurance in Japan since 2014. Although the surgical treatment algorithm for FI has been chronologically modified, it should be sequentially selected, starting from the most minimally invasive procedure, as FI is a benign condition. Injuries to the neural system or spinal cord often cause disorders of the sensory and motor nerves that innervate the anus, rectum, and pelvic floor, leading to the difficulty in controlling bowel movement or FI and/or constipation. FI and constipation are closely associated; when one improves, the other tends to deteriorate. Patients with severe cognitive impairment may present with active soiling, referred to as "incontinence" episodes that occur as a consequence of abnormal behavior, and may also experience passive soiling.

Use of Malone antegrade continence enemas in neurologic bowel dysfunction

INTRODUCTION

Patients with neurogenic bowel dysfunction (NBD) suffer severe constipation and/or fecal incontinence that are very difficult to treat. Most medication-based and interventional treatments have been unsuccessful. The goal of this study was to assess the medium-term effectiveness of the Malone procedure in all patients with NBD, as an alternative to colostomy.

PATIENTS AND METHODS

In this retrospective single-center study, 23 patients who underwent Malone's surgical treatment were analyzed. The main criteria were the usage of antegrade colonic enemas (ACE) after Malone's procedure at the most recent follow-up and comparison of quality of life scores before and after surgery.

RESULTS

The post-procedure mortality was zero, but an overall morbidity of 60% was observed, including minor complications (Clavien 1, 2) in 56%. The median follow-up was 33 months. At the most recent follow-up, the utilization rate of the neo-appendicostomy for ACE was 69.6%; 76.9% of the patients using ACE reported improvement in quality of life scores. Secondary colostomy was performed in 21.7% for functional failure of the Malone procedure.

CONCLUSION

The Malone procedure is a reliable technique that can be used in the therapeutic strategy for managing NBD patients with incontinence/constipation refractory to usual treatments. It should be considered as a therapeutic step to take before resorting to colostomy.

Neurogenic bowel dysfunction in patients with multiple sclerosis: prevalence, impact, and management strategies

Bowel dysfunction in patients with multiple sclerosis (MS) is highly prevalent. Constipation and fecal incontinence can coexist and alternate, impacting on the patient's quality of life and social interactions, as well as burdening the caregivers. The cost for the health care providers is also significant, with increased number of hospital admissions, treatment-related costs, and hospital appointments. The origin is multifactorial, and includes alteration of neurological pathways, polypharmacy, behavioral elements, and ability to access the toilet. Every patient with MS should be sensitively questioned about bowel function, and red flag symptoms should prompt adequate investigations. Manipulation of life style factors and establishment of a bowel regime should be attempted in the first place, and if this fails, other measures such as biofeedback and transanal irrigation should be included. A stoma can improve quality of life, and is not necessarily a last-ditch option. Antegrade colonic enemas can also be an effective option, whilst neuromodulation has not proved its role yet. Effective treatment of bowel dysfunction improves quality of life, reduces incidence of urinary tract infection, and reduces health care costs.

Bowel management in children with spina bifida

Spina bifida is a birth defect that commonly causes bowel and bladder dysfunction in children with a significant negative impact on quality of life and emotional wellbeing. Fecal continence improves satisfaction and the quality of life of both children and their caretakers. Bowel management in children with spina bifida is hampered by limited controlled studies and variable practice within different institutions and subspecialists. The goals of a successful bowel management program in children with spina bifida consist of predictable bowel movements, social continence, and eventual independence. Treatment options range from conservative interventions such as diets and oral laxatives that modify stool consistency and transit, to trans-anal irrigations and antegrade continence enemas that facilitate predictable recto-sigmoid emptying and provide a greater degree of independence. In children, the treatment approach should be implemented in the context of the child's developmental age in order to allow for optimum social integration with their age-appropriate peers. We present a review of a stepwise approach to bowel management in children with spina bifida and the challenges related to the proposed treatment options.

Bowel management in children with spina bifida

Spina bifida is a birth defect that commonly causes bowel and bladder dysfunction in children with a significant negative impact on quality of life and emotional wellbeing. Fecal continence improves satisfaction and the quality of life of both children and their caretakers. Bowel management in children with spina bifida is hampered by limited controlled studies and variable practice within different institutions and subspecialists. The goals of a successful bowel management program in children with spina bifida consist of predictable bowel movements, social continence, and eventual independence. Treatment options range from conservative interventions such as diets and oral laxatives that modify stool consistency and transit, to trans-anal irrigations and antegrade continence enemas that facilitate predictable recto-sigmoid emptying and provide a greater degree of independence. In children, the treatment approach should be implemented in the context of the child's developmental age in order to allow for optimum social integration with their age-appropriate peers. We present a review of a stepwise approach to bowel management in children with spina bifida and the challenges related to the proposed treatment options.

Antegrade Enema After Total Mesorectal Excision for Rectal Cancer: The Last Chance to Avoid Definitive Colostomy for Refractory Low Anterior Resection Syndrome and Fecal Incontinence

BACKGROUND

Total mesorectal excision and preoperative radiotherapy in mid and low rectal cancer allow us to achieve very good oncological results. However, major and refractory low anterior resection syndrome and fecal incontinence alter the quality of life of patients with a long expected life span.

OBJECTIVE

We assessed the functional results of patients treated by antegrade enema for refractory low anterior resection syndrome and fecal incontinence after total mesorectal excision.

DESIGN

This is a prospective monocentric study from 2012 to 2016.

PATIENTS

Patients who underwent percutaneous endoscopic cecostomy for refractory low anterior resection syndrome and fecal incontinence after total mesorectal excision were prospectively analyzed.

MAIN OUTCOME MEASURES

We assessed the morbidity of the procedure and compared low anterior resection syndrome score, Wexner score, and Gastrointestinal Quality of Life Index before and after the use of antegrade enema.

RESULTS

Of 25 patients treated by antegrade enema over the study period, 6 (24%) had a low anterior resection, 18 (72%) had a coloanal anastomosis, and 1 (4%) had a perineal colostomy. Postoperatively, the rate of local abscess was 8%, all treated by antibiotics. Low anterior resection syndrome score (33 vs 4, p < 0.001), Wexner score (16 vs 4, p <0.001), and Gastrointestinal Quality of Life Index (73 vs 104, p < 0.001) were all significantly improved after antegrade enema. The 2 main symptoms reported by patients were sweating (28%) and local pain (36%). At the end of the follow-up, 16% (n = 4) catheters were removed, and the rate of definitive colostomy was 12% (n = 3).

LIMITATIONS

The main limitations of this study are the monocentric features and the sample size.

CONCLUSION

Antegrade enema for major and refractory low anterior resection syndrome and fecal incontinence after total mesorectal excision appears to be a promising treatment to avoid definitive colostomy. See Video Abstract at http://links.lww.com/DCR/A608.

How long will I have my ACE? The natural history of the antegrade continence enema stoma in idiopathic constipation

PURPOSE

We aim to determine the natural history of the ACE in idiopathic constipation and factors predictive of closure.

METHODS

A retrospective case-note review of all patients undergo ACE formation for idiopathic constipation Jan 2003-Mar 2016. Kaplan-Meier analysis was used to determine ACE survival and Cox's proportional hazard models to examine potential predictors of closure.

RESULTS

29/84 (35%) ACEs were closed: 21/84 due to success and 8/84 due to failure. Median age of closure was 15.5 years (3.5-23.6). Median ACE survival was 77.0 months (95% CI 58.0-96.0). An ACE survival curve was derived from which we estimate that 5-year post-ACE, one-third of patients can expect to have had their ACE closed. Younger age at ACE was predictive of earlier closure (p = 0.023) and closure for success (p < 0.001). Neither patient sex (p = 0.546) nor presence of psychological comorbidities (p = 0.769) predicted likelihood of closure. Incontinence 6-week post-ACE was also associated with increased likelihood of closure (p = 0.042).

CONCLUSION

The ACE survival curve estimates the proportion of patients with idiopathic constipation who can expect closure (either due to success or failure) at certain timepoints. This may be useful for patient counseling. Younger age at ACE was associated with earlier closure (for success).

Fecal incontinence - Challenges and solutions

Fecal incontinence is not a diagnosis but a frequent and debilitating common final pathway symptom resulting from numerous different causes. Incontinence not only impacts the patient’s self-esteem and quality of life but may result in significant secondary morbidity, disability, and cost. Treatment is difficult without any panacea and an individualized approach should be chosen that frequently combines different modalities. Several new technologies have been developed and their specific roles will have to be defined. The scope of this review is outline the evaluation and treatment of patients with fecal incontinence.

Fecal Incontinence and Pelvic Floor Dysfunction in Women: A Review

Pelvic floor dysfunction and fecal incontinence is a common and debilitating condition in women, particularly as women age, and often goes under-reported to health care providers. It is important for providers to ask patients about possible symptoms. An algorithm for evaluation and treatment is presented. Current and future therapies are described and discussed.

Clinical aspects of neurointestinal disease: Pathophysiology, diagnosis, and treatment

The enteric nervous system (ENS) is involved in the regulation of virtually all gut functions. Conditions referred to as enteric neuropathies are the result of various mechanisms including abnormal development, degeneration or loss of enteric neurons that affect the structure and functional integrity of the ENS. In the past decade, clinical and molecular research has led to important conceptual advances in our knowledge of the pathogenetic mechanisms of these disorders. In this review we consider ENS disorders from a clinical perspective and highlight the advancing knowledge regarding their pathophysiology. We also review current therapies for these diseases and present potential novel reparative approaches for their treatment.