Current Surgical Management of Pediatric Idiopathic Constipation: A Systematic Review of Published Studies

Surgical management of children with intractable functional constipation; experience of a single tertiary children's hospital

BACKGROUND

Children with intractable functional constipation (FC) may eventually require surgery. However, guidelines regarding the surgical management of children with intractable FC are lacking. The aim of this study was to describe the surgical management of FC in children.

METHODS

A retrospective chart review was performed of children with FC (according to the Rome III criteria) who underwent ileostomy, colostomy or (sub)total colectomy at a tertiary hospital. Treatment success was defined as no longer fulfilling the Rome III-FC-criteria or having a functional ostomy. In addition, a self-developed questionnaire was administered to parents by telephone to assess postsurgical satisfaction (yes-no question and rated on a scale of 1-10).

KEY RESULTS

Thirty-seven patients (68% female) were included; median age at first surgery was 12 years (range 1.6-17.6). The initial surgical procedure consisted of ileostomy (n=21), colostomy (n=10), sigmoid resection (n=5) and subtotal colectomy (n=1). Success criteria were fulfilled by 85% of the patients. Postsurgical satisfaction of parents was 91% with a median postoperative satisfaction score of 8 (range 2-10), and 97% would opt for the same procedure(s) if necessary. Thirty patients (81%) experienced stoma problems, with 12 patients (32%) requiring stoma-revisions. Other complications occurred in 16 patients (43%).

CONCLUSIONS & INFERENCES

Surgery can improve symptoms in children with intractable FC. Despite morbidity and complications, parental satisfaction is high. Prospective, high-quality research is necessary to develop guidelines for the diagnostic work-up and surgical management in children with intractable FC.

A systematic review of the quality of conduct and reporting of systematic reviews and meta-analyses in paediatric surgery

OBJECTIVE

Our objective was to evaluate quality of conduct and reporting of published systematic reviews and meta-analyses in paediatric surgery. We also aimed to identify characteristics predictive of review quality.

BACKGROUND

Systematic reviews summarise evidence by combining sources, but are potentially prone to bias. To counter this, the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) was published to aid in reporting. Similarly, the Assessing the Methodological Quality of Systematic Reviews (AMSTAR) measurement tool was designed to appraise methodology. The paediatric surgical literature has seen an increasing number of reviews over the past decade, but quality has not been evaluated.

METHODS

Adhering to PRISMA guidelines, we performed a systematic review with a priori design to identify systematic reviews and meta-analyses of interventions in paediatric surgery. From 01/2010 to 06/2016, we searched: MEDLINE, EMBASE, Cochrane, Centre for Reviews and Dissemination, Web of Science, Google Scholar, reference lists and journals. Two reviewers independently selected studies and extracted data. We assessed conduct and reporting using AMSTAR and PRISMA. Scores were calculated as the sum of reported items. We also extracted author, journal and article characteristics, and used them in exploratory analysis to determine which variables predict quality.

RESULTS

112 articles fulfilled eligibility criteria (53 systematic reviews; 59 meta-analyses). Overall, 68% AMSTAR and 56.8% PRISMA items were reported adequately. Poorest scores were identified with regards a priori design, inclusion of structured summaries, including the grey literature, citing excluded articles and evaluating bias. 13 reviews were pre-registered and 6 in PRISMA-endorsing journals. The following predicted quality in univariate analysis:, word count, Cochrane review, journal h-index, impact factor, journal endorses PRISMA, PRISMA adherence suggested in author guidance, article mentions PRISMA, review includes comparison of interventions and review registration. The latter three variables were significant in multivariate regression.

CONCLUSIONS

There are gaps in the conduct and reporting of systematic reviews in paediatric surgery. More endorsement by journals of the PRISMA guideline may improve review quality, and the dissemination of reliable evidence to paediatric clinicians.

Consensus Review of Best Practice of Transanal Irrigation in Children

Pediatric patients with either functional or organic bowel dysfunction may suffer from constipation and fecal incontinence and represent a complex group in whom management is often difficult. Many noninvasive and invasive treatments have been proposed, with variable efficacy and adverse effects. Transanal irrigation (TAI) is now an accepted alternative, in both children and adults, for bowel dysfunction that has not responded to conservative and medical therapies. There is, however, still some uncertainty about the use of TAI in pediatric populations. Hence, a group of specialists from different nations and pediatric disciplines, all with long-standing experience of bowel management in children, performed a literature search and had round table discussions to determine the best-practice use of TAI in the pediatric patient population. Based on these findings, this article provides best-practice recommendations on indications, patient selection, important considerations before treatment, patient and family training, treatment regimens, troubleshooting, and practical aspects of TAI. We conclude that careful patient selection, a tailored approach, directly supervised training, and sustained follow-up are key to optimize outcomes with TAI in children with functional or organic bowel dysfunction.

Surgical decision-making in the management of children with intractable functional constipation: What are we doing and are we doing it right?

BACKGROUND

Children with intractable functional constipation (FC) may eventually require surgery, often guided by motility testing. However, there are no evidence-based guidelines for the surgical management of intractable FC in children.

AIM

To assess the diagnostic and surgical approach of pediatric surgeons and pediatric gastroenterologists towards children with intractable FC.

METHODS

A survey was administered to physicians attending an international conference held simultaneously in Columbus (Ohio, USA) and Nijmegen (the Netherlands). The survey included 4 questions based on cases with anorectal and colonic manometry results.

RESULTS

74 physicians completed the questionnaire. Anorectal manometry was used by 70%; 52% of them would consider anal sphincter botulinum toxin injections for anal achalasia and 21% would use this to treat dyssynergia. Colonic manometry was used by 38%; 57% of them reported to use this to guide surgical decision-making. The surgical approach varied considerably among responders answering the case questions based on motility test results; the most commonly chosen treatments were antegrade continence enemas and anal botulinum injections.

CONCLUSION

Surgical decision-making for children with intractable FC differs among physicians. There is a need for clinical guidelines regarding the role of anorectal and colonic manometry in surgical decision-making in children with intractable FC.

Childhood constipation: finally something is moving!

Recent developments in the evaluation and treatment of childhood constipation are likely to influence the way we deal with pediatric defecation disorders in the near future. Innovations in both colonic and anorectal manometry are leading to novel insights into functional defecation disorders in children. Promising results have been achieved with innovative therapies such as electrical stimulation and new drugs with targets that differ from conventional pharmacological treatments. Also, new surgical approaches, guided by manometric findings, have led to improvement in patient outcome. Finally, utilization of non-pharmacological interventions such as fiber and probiotics has been a field of particular interest in recent years. The aim of this article is to provide an update on these and other novel diagnostic and therapeutic tools related to childhood constipation.

Surgical options for the management of severe functional constipation in children

PURPOSE OF REVIEW

Constipation is a very common problem in pediatrics with both the severity of presentations and treatments varying across a broad spectrum. The majority of children with functional constipation are managed successfully without the need for specialized testing and surgical intervention. Those who present with intractable constipation, with or without fecal soiling, require referrals for motility testing that helps determine both medical and surgical management, and interventions. The literature was reviewed for publications on surgical approaches to children with severe constipation, including assessing the quality and levels of evidence and the use of objective measures to determine outcomes.

RECENT FINDINGS

There is very little in the way of recent studies evaluating surgical indications or treatment approaches for functional constipation, apart from one systematic review and one recent expert review. Although the systematic review was published in the last year, most of the studies it analyzes are older. The vast majority of studies comprise level 4 and 5 evidence.

SUMMARY

The indication for most surgical procedures is 'failed' medical management, yet no standardized definition for this exists. Many surgical procedures are proposed with little evidence to show outcomes. We recommend that the surgical evaluation and treatment of children with constipation needs to be protocolized and studied in a prospective manner using validated outcomes measures. Our center's current protocol is described.

Characterizing colonic motility in children with chronic intractable constipation: a look beyond high-amplitude propagating sequences

BACKGROUND

Children with chronic intractable constipation experience severe and long-lasting symptoms, which respond poorly to conventional therapeutic strategies. Detailed characterization of colonic motor patterns in such children has not yet been obtained.

METHODS

In 18 children with chronic intractable constipation, a high-resolution water-perfused manometry catheter (36 sensors at 1.5-cm intervals) was colonoscopically placed with the tip at the distal transverse colon. Colonic motor patterns were recorded for 2 h prior to and after a meal and then after colonic infusion of bisacodyl. These data were compared with previously published colonic manometry data from 12 healthy adult controls and 14 adults with slow-transit constipation.

KEY RESULTS

The postprandial number of the retrograde cyclic propagating motor pattern was significantly reduced in these children compared with healthy adults (children, 3.1 ± 4.7/h vs healthy adults, 34.7 ± 45.8/h; p < 0.0001) but not constipated adults (4.5 ± 5.6/h; p = 0.9). The number of preprandial long-single motor patterns was significantly higher (p = 0.003) in children (8.0 ± 13.2/h) than in healthy adults (0.4 ± 0.9/h) and in constipated adults (0.4 ± 0.7/h). Postprandial high-amplitude propagating sequences (HAPSs) were rarely observed in children (2/18), but HAPS could be induced by bisacodyl in 16 of 18 children.

CONCLUSIONS & INFERENCES

Children with chronic intractable constipation show a similar impaired postprandial colonic response to that seen in adults with slow-transit constipation. Children may have attenuated extrinsic parasympathetic inputs to the colon associated with an increased incidence of spontaneous long-single motor patterns.

Management of Functional Constipation in Children: Therapy in Practice

Functional constipation is a common healthcare problem among children worldwide and accounts for high healthcare usage and costs. Functional constipation is a clinical diagnosis; the evaluation primarily consists of a thorough medical history and a complete physical examination. Additional investigations are not necessary in most cases. Treatment consists of non-pharmacological and pharmacological interventions. Non-pharmacological interventions involve education and demystification, toilet training (with a reward system), and a defecation diary. Pharmacological treatment comprises three steps: disimpaction, maintenance treatment, and weaning. The treatment of first choice is oral laxatives, preferably polyethylene glycol. When this is insufficient, other therapeutic agents are available. This review discusses the evaluation and management of functional constipation in the pediatric population and provides a summary of drug treatment options.