[Extra-intestinal manifestations associated with Crohn's disease]. / Extra-intestinale uitingen van inflammatoire darmziekte.

Extra-intestinal manifestations (EIM) associated with Crohn's disease (CD) are frequently observed and can manifest as either the initial symptom or develop later in the disease course following gastrointestinal symptoms. The most common EIM affect the joints, skin, or eyes, with some correlating with active CD activity while others may occur during periods of inactivity. EIM can affect both pediatric and adult CD patients, potentially reducing their quality of life if not promptly identified and treated. Thus, emphasizing the prevalence and clinical presentation is essential to initiate appropriate diagnostic assessments and effectively treat both EIM and the underlying CD. In this case series, we present two pediatric and one adult case where EIM preceded CD diagnosis, resulting in delayed CD diagnosis. Additionally, we outline the most prevalent EIM, their epidemiology, and associated symptoms.

Long-term efficacy of clinical hunger provocation to wean feeding tube dependent children.

BACKGROUND & AIMS: The incidence of tube feeding dependency seems to increase worldwide, and these children may remain on prolonged tube feeding for many months to years. The multidisciplinary clinical hunger provocation (CHP) program is an intensive inpatient intervention of usually 2-3 weeks, aimed at weaning children from tube feeding. CHP has been proven highly effective on the short term (80-86%), particularly when applied before the age of two years but long-term data are lacking. The aims of our study were to determine the long-term efficacy of the CHP program and factors associated with success or failure and to assess anthropometrics, feeding behavior, and medical outcomes at long-term follow-up. METHODS: All tube-dependent children who underwent CHP at a tertiary hospital in Amsterdam, the Netherlands, between 2001 and 2014, and had a minimum follow-up of 12-months in 2015, were eligible to participate in this retrospective cohort study. During the CHP program, tube feeding is ceased stepwise to create appetite, according to a strict protocol. The program was defined successful if patients achieved oral intake and could be fully weaned from tube feeding following the CHP program. Acute malnourishment was defined as weight for height <2 SD or loss of >1 SD within 3 months, chronic malnourishment as height for age <2 SD and both acute and chronic malnourishment as both a height for age and weight for height <2 SD. Long-term efficacy (tube free at varying follow-up periods), anthropometrics (height for age, weight for height), feeding behavior and medical outcomes were assessed by a structured cross-sectional parental interview. RESULTS: In total, 57 patients were admitted to the CHP program. Fifty-two patients could be contacted of whom 42 participated in the study (response rate 81%) with a median age at admittance of 19 (IQR 13-22) months (62% female). The program was initially successful in 36/42 (86% (Bca CI 95% 75.0-95.2)) patients. A younger age upon initiation of tube feeding was negatively correlated with success (p 0.016). At follow-up, a median period of 67.0 (IQR 37.0-101.5) months after discharge, long-term efficacy was 32/41 (78% (Bca CI 95% 64.1-90.0)) (1 missing data). Patients with a successful CHP had beneficial outcomes compared to those with an unsuccessful CHP, showing less selective eating behavior (p 0.025), nocturnal feeding (p 0.044), forced feeding (p 0.044) and hospital admissions (p 0.028). However, 44% of successfully weaned patients fulfilled the criteria for malnourishment at long-term follow-up (13% acute, 22% chronic, and 9% both acute and chronic (compared to 22% at admittance: 13% acute, 6% chronic, and 3% both)). 59.4% of successfully weaned patients showed signs of developmental delays or were diagnosed with new medical diagnoses (43.8%) at long-term follow-up. CONCLUSIONS: The multidisciplinary CHP is a highly effective short-term (86%) and long-term (78%) intervention to wean young children from tube feeding, with beneficial feeding outcomes. However, at long-term follow-up, many successfully weaned patients were malnourished, showed signs of developmental delay, and were diagnosed with new medical diagnoses. For these reasons, patients should be monitored carefully during and after tube weaning, also after successful CHP. Tube dependency might be an early expression of medical diagnoses.

Intranasal treatment of vitamin B12 deficiency in children.

Vitamin B12 deficiency is traditionally treated with intramuscular injections of cobalamin, which are stressful events for children. In adults, studies have shown adequate absorption of intranasally administered vitamin B12. To date, data concerning efficacy of intranasal administration of vitamin B12 in children are lacking. We report on ten cases of children with vitamin B12 deficiency who were successfully treated with intranasal administration of a spray containing hydroxocobalamin. The mean baseline vitamin B12 concentration increased from 126.3 pmol/l (SD 55.4) to 1914.7 pmol/l (SD 1509.7). No side effects were reported.Conclusion: In children, intranasal application of vitamin B12 seems a safe and effective alternative to intramuscular injections, leading to higher compliance and less burden to patients.What is Known:• Children with vitamin B12deficiency are traditionally treated with intramuscular cobalamin injections, which are costly and painful.• Studies in adults showed that intranasal application of hydroxocobalamin leads to normalisation of vitamin B12levels.What is New:• The intranasal application of vitamin B12resulted in a substantial increase of the mean baseline vitamin B12levels without any side effect.• These data encourage a systematic evaluation of intranasal treatment of vitamin B12deficiency in order to define safety, optimal dosage and administration frequency.

[An infant with prolonged jaundice]. / Een zuigeling met persisterende icterus.

BACKGROUND: In every neonate presenting with prolonged jaundice persisting beyond day 21 of life, neonatal cholestasis should always be excluded even if the infant is breast fed. Pale stools are an alarm symptom and additional tests for neonatal cholestasis should be carried out directly. CASE DESCRIPTION: We describe the case of a five-week-old girl of Chilean origin who was referred with conjugated hyperbilirubinaemia. The jaundice had possibly arisen directly after birth, but due to the dark skin colour of the neonate the jaundice was not recognized as such, although her scleras were yellow. According to the stool colour card, her stools were pale. The findings of a histological examination of a liver biopsy confirmed the diagnosis of biliary atresia, for which a Kasai hepatoportoenterostomy was performed. CONCLUSION: Neonatal cholestasis is always pathological and requires further investigation. In infants with dark skin, jaundice is sometimes difficult to see and inspection of the scleras should give the definitive answer.

[Faecal transplants for children with recurrent infections]. / Fecestransplantatie voor kinderen met recidiverende C. difficile-infecties.

BACKGROUND: Clostridioides difficile infection is a relatively rare cause of diarrhoea in children, but there are frequent recurrences when it occurs, despite targeted antibiotic treatment. CASE DESCRIPTIONS: A 2-year-old boy with concomitant motility disorder and a 14-year-old girl with Down syndrome experienced several infections with C. difficile, respectively after the use of antibiotics for otitis media and extended use of antibiotics in addition to chemotherapy. Both were treated successfully with faecal transplants. CONCLUSION: Clostridioides difficile infections occur in children, mainly after extended use of antibiotics or when the immune system is impaired. In case of recurring C. difficile infections, children can be treated safely and effectively with faecal transplants.

Variability of core microbiota in newly diagnosed treatment-naïve paediatric inflammatory bowel disease patients.

BACKGROUND & AIMS: Intestinal microbiota is considered to play a crucial role in the aetiology of inflammatory bowel disease (IBD). We aimed to describe faecal microbiota composition and dynamics in a large cohort of children with de novo (naïve) IBD, in comparison to healthy paediatric controls (HC). METHODS: In this prospective study, performed at two tertiary centres, faecal samples from newly diagnosed, treatment-naïve paediatric IBD patients were collected prior to bowel cleansing for colonoscopy (t0) and 1, 3 and 6 weeks and 3 months after initiation of therapy. The microbial profiles of Crohn's disease (CD) and Ulcerative colitis (UC) patients were compared with HC and linked to therapeutic response. Microbiota composition was analysed by IS-pro technology. RESULTS: Microbial profiles of 104 new IBD-patients (63 CD, 41 UC, median age 14.0 years) were compared to 61 HC (median 7.8 years). IBD was mainly characterised by decreased abundance of Alistipes finegoldii and Alistipes putredinis, which characterize a healthy state microbial core. The classifier including these core species as predictors achieved an AUC of the ROC curve of .87. Core bacteria tended to regain abundance during treatment, but did not reach healthy levels. CONCLUSION: Faecal microbiota profiles of children with de novo CD and UC can be discriminated from HC with high accuracy, mainly driven by a decreased abundance of species shaping the microbial core in the healthy state. Paediatric IBD can therefore be characterized by decreased abundance of certain bacterial species reflecting the healthy state rather than by the introduction of pathogens.

Outcome of initially nonoperative treatment for acute simple appendicitis in children.

PURPOSE: To compare the outcome of initially nonoperative treatment with immediate appendectomy for simple appendicitis in children. METHODS: Between September 2012 and June 2014 children aged 7-17 years with a radiologically confirmed simple appendicitis were invited to participate in a multicentre prospective cohort study in which they were treated with an initially nonoperative treatment strategy; nonparticipants underwent immediate appendectomy. In October 2015, their rates of complications and subsequent appendectomies, and health-related quality of life (HRQOL) were assessed. RESULTS: In this period, 25 children were treated with an initially nonoperative treatment strategy and 19 with immediate appendectomy; median (range) follow-up was 25 (16-36) and 26 (17-34) months, respectively. The percentage [95%CI] of patients experiencing complications in the initially nonoperative group and the immediate appendectomy group was 12 [4-30]% and 11 [3-31]%, respectively. In total 6/25 children (24%) underwent an appendectomy; none of the 6 patients operated subsequently experienced any postappendectomy complications. Overall, HRQOL in the nonoperative treatment group was similar to that of healthy peers. CONCLUSIONS: Outcome of initially nonoperative treatment for acute simple appendicitis in children is similar to the outcome in those who undergo immediate appendectomy. Initially nonoperative management seems to be able to avoid appendectomy in 3 out of 4 children. LEVEL OF EVIDENCE: 2 (prospective comparative study). This research did not receive any specific grant from funding agencies in the public, commercial or not-for-profit sectors.

Characterization of Microbiota in Children with Chronic Functional Constipation.

OBJECTIVES: Disruption of the intestinal microbiota is considered an etiological factor in pediatric functional constipation. Scientifically based selection of potential beneficial probiotic strains in functional constipation therapy is not feasible due to insufficient knowledge of microbiota composition in affected subjects. The aim of this study was to describe microbial composition and diversity in children with functional constipation, compared to healthy controls. STUDY DESIGN: Fecal samples from 76 children diagnosed with functional constipation according to the Rome III criteria (median age 8.0 years; range 4.2-17.8) were analyzed by IS-pro, a PCR-based microbiota profiling method. Outcome was compared with intestinal microbiota profiles of 61 healthy children (median 8.6 years; range 4.1-17.9). Microbiota dissimilarity was depicted by principal coordinate analysis (PCoA), diversity was calculated by Shannon diversity index. To determine the most discriminative species, cross validated logistic ridge regression was performed. RESULTS: Applying total microbiota profiles (all phyla together) or per phylum analysis, no disease-specific separation was observed by PCoA and by calculation of diversity indices. By ridge regression, however, functional constipation and controls could be discriminated with 82% accuracy. Most discriminative species were Bacteroides fragilis, Bacteroides ovatus, Bifidobacterium longum, Parabacteroides species (increased in functional constipation) and Alistipes finegoldii (decreased in functional constipation). CONCLUSIONS: None of the commonly used unsupervised statistical methods allowed for microbiota-based discrimination of children with functional constipation and controls. By ridge regression, however, both groups could be discriminated with 82% accuracy. Optimization of microbiota-based interventions in constipated children warrants further characterization of microbial signatures linked to clinical subgroups of functional constipation.

Spontaneous Gastric Perforation in a Case of Collagenous Gastritis.

Collagenous gastritis is an extremely rare disease, both in children and adults. Symptoms vary depending on the extent of collagenous changes in the bowel. In most of the children, iron deficiency anemia and abdominal pain are the presenting symptoms. We present a 15-year-old boy with acute abdomen due to gastric perforation the cause of which was collagenous gastritis.

A scoring system to predict the severity of appendicitis in children.

BACKGROUND: It appears that two forms of appendicitis exist. Preoperative distinction between the two is essential to optimize treatment outcome. This study aimed to develop a scoring system to accurately determine the severity of appendicitis in children. MATERIALS AND METHODS: Historical cohort study of pediatric patients (aged 0-17 y old) with appendicitis treated between January 2010 and December 2012. Division into simple, complex appendicitis, or another condition based on preset criteria. Multiple logistic regression analysis was used to build the prediction model with subsequent validation. RESULTS: There were 64 patients with simple and 66 with complex appendicitis. Five variables explained 64% of the variation. Independent validation of the derived prediction model in a second cohort (55 simple and 10 complex appendicitis patients) demonstrated 90% sensitivity (54-99), 91% specificity (79-97), a positive predictive value of 64% (36-86), and an negative predictive value of 98% (88-100). The likelihood ratio+ was 10 (4.19-23.42), and likelihood ratio- was 0.11 (0.02-0.71). Diagnostic accuracy was 91% (84-98). CONCLUSIONS: Our scoring system consisting of five variables can be used to exclude complex appendicitis in clinical practice if the score is <4.

Composition and stability of intestinal microbiota of healthy children within a Dutch population.

Numerous diseases linked to microbial imbalance can be traced back to childhood, illustrating the impact of the juvenile microbiota development from infancy toward adulthood. However, knowledge on this subject is currently very limited. The primary aim of this study was to characterize composition and short- and long-term stability of the intestinal microbiota in healthy children. Between November 2011 and June 2014, 61 children 2 to 18 yr of age from different areas in The Netherlands were included and instructed to collect fecal samples weekly, for 6 wk, and a follow-up sample after 18 mo. The intergenic spacer profiling technique (IS-pro) was used to analyze all available fecal samples. Microbial diversity was calculated by the Shannon diversity index and individual compositional stability by comparing all collection time points. Microbial stability varied per phylum (P< 0.0005), declined rapidly in a short time period, and subsequently stabilized on the long run with very gradual variation, leading to an overall compositional stability of 70% on average over a period of 18 mo. Higher species diversity was correlated to a higher overall compositional stability (P< 0.001). We observed an age-independent bacterial shared core consisting of a limited number of species. In conclusion, in this study, we showed that microbial composition stability in children varied per phylum, at both short-term and long-term intervals. Healthy children seem to share a microbiome core consisting of a limited number of species.-De Meij, T. G. J., Budding, A. E., de Groot, E. F. J., Jansen, F. M., Kneepkens, C. M. F., Benninga, M. A., Penders, J., van Bodegraven, A. A., Savelkoul, P. H. M. Composition and stability of intestinal microbiota of healthy children within a Dutch population.

Clinical tube weaning supported by hunger provocation in fully-tube-fed children.

BACKGROUND: Children with congenital malformations, mental retardation, and complex early medical history frequently have feeding problems. Although tube feeding is effective in providing the necessary energy and nutrients, it decreases the child's motivation to eat and may lead to oral aversion. In this study, we sought to confirm our previous results, showing that a multidisciplinary clinical hunger provocation program may lead to quick resumption of oral feeding. METHODS: In a crossover study, 22 children of 9 to 24 months of age who were fully dependent on tube feeding were randomly assigned to one of two groups: group A, intervention group (2-week multidisciplinary clinical hunger provocation program); and group B, control group (4-week outpatient treatment by the same multidisciplinary team). Patients failing one treatment were reassigned to the other treatment group. Primary outcome measures were at least 75% orally fed at the conclusion of the intervention and fully orally fed and gaining weight 6 months after the intervention. RESULTS: In group A, 9/11 patients were successfully weaned from tube feeding (2 failures: 1 developed ulcerative colitis, 1 drop-out). In group B, only 1 patient was weaned successfully; 10/11 were reassigned to the clinical hunger provocation program, all being weaned successfully. Six months after the intervention, 1 patient had to resume tube feeding. In total, in the control group, 1/11 (9%) was weaned successfully as compared with 18/21 (86%) in the hunger provocation group (P < 0.001). CONCLUSIONS: Multidisciplinary clinical hunger provocation is an effective short-term intervention for weaning young children from tube feeding.

Initial antibiotic treatment for acute simple appendicitis in children is safe: Short-term results from a multicenter, prospective cohort study.

BACKGROUND: Initial antibiotic treatment for acute appendicitis has been shown to be safe in adults; so far, not much is known about the safety and efficacy of this treatment in children. The aims of this study were to investigate the feasibility of a randomized controlled trial (RCT) evaluating initial antibiotic treatment for acute appendectomy in children with acute simple appendicitis and to evaluate the safety of this approach. METHODS: In a multicenter, prospective cohort study patients aged 7-17 years with a radiologically confirmed simple appendicitis were eligible. Intravenous antibiotics (amoxicillin/clavulanic acid 250/25 mg/kg 4 times daily; maximum 6,000/600 mg/d and gentamicin 7 mg/kg once daily) were administered for 48-72 hours. Clinical reevaluation every 6 hours, daily blood samples, and ultrasound follow-up after 48 hours was performed. In case of improvement after 48 hours, oral antibiotics were given for a total of 7 days. At any time, in case of clinical deterioration or non-improvement after 72 hours, an appendectomy could be performed. Follow-up continued until 8 weeks after discharge. Adverse events were defined as major complications of antibiotic treatment, such as allergic reactions, perforated appendicitis, and recurrent appendicitis. RESULTS: Of 44 eligible patients, 25 participated (inclusion rate, 57%; 95% CI, 42%-70%). Delayed appendectomy was performed in 2, and the other 23 were without symptoms at the 8 weeks follow-up. Minor complications occurred in three patients. None of the patients suffered from an adverse event or a recurrent appendicitis. CONCLUSION: Our study shows that an RCT comparing initial antibiotic treatment strategy with urgent appendectomy is feasible in children; the intervention seems to be safe.

Defecation patterns in infants: a prospective cohort study.

INTRODUCTION: Data regarding prevalence and natural history of infant dyschezia, defined by the Rome III criteria as straining and crying for at least 10 min before successful passage of soft stools, are lacking. OBJECTIVE: We aimed to investigate prevalence and natural history of infant dyschezia. STUDY DESIGN: In 2003, 124 youth healthcare doctors participated in a national study on defecation patterns of infants. Using standardised questionnaires and bowel diaries, these were recorded of infants aged 1, 3 and 9 months old. RESULTS: Out of 1292 infants, 46.4% had no gastrointestinal complaints. At 1 and 3 months old, 3.9% and 0.9% infants, respectively, fulfilled the Rome III criteria for infant dyschezia. However, at the same time points, parents of 17.3% and 6.5% of infants, respectively, reported symptoms preceding defecation while not strictly fulfilling the Rome III criteria ('modified Rome III criteria'). Dyschezia-like symptoms (Rome III criteria) were also reported in 0.9% of 9-month-old infants, with 5.7% having symptoms (modified Rome III criteria). Only 3/61 (4.9%) Rome III dyschezia infants and 1/306 (0.3%) infants with modified Rome III criteria at 1 or 3 months had symptoms fitting the diagnosis of infant functional constipation at 9 months old. CONCLUSIONS: The present definition of infant dyschezia seems too strict. We propose to widen the definition in terms of symptoms as well as age in order to better fit the appreciation of the parents. The prevalence of infant dyschezia declines with age. There seems to be no relation to the development of functional constipation.

Validation of the Rome III criteria and alarm symptoms for recurrent abdominal pain in children.

OBJECTIVES: Rome criteria were formulated to define functional gastrointestinal disorders (Rome III criteria, 2006) excluding organic diagnoses when alarm symptoms were absent. The aims of the study were to validate the Rome III criteria as to their capacity to differentiate between organic and functional abdominal pain and to assess the role of alarm symptoms in this differentiation. METHODS: During 2 years all of the patients (ages 4-16 years) presenting with recurrent abdominal pain (Apley criteria) and referred to secondary care were included. Clinical diagnoses were based on protocolized evaluation and intervention with 6-month follow-up. Alarm symptoms were registered. Rome III criteria for functional pain syndromes were assigned independently. Descriptive statistical analyses were performed. RESULTS: In 200 patients (87 boys, mean age 8.8 years), organic (17%), functional (40%), combined organic and functional (9%), spontaneous recovery (27%), and other (8%) clinical diagnoses were established. Alarm symptoms were found in 57.5% (organic causes 56%, functional causes 61%). The evaluation for Rome symptom clusters revealed symptoms of irritable bowel syndrome in 27%, functional dyspepsia in 15%, functional abdominal pain in 28%, functional abdominal pain syndrome in 14.5%, and no pain syndrome in 15.5%. Rome diagnoses, based on symptoms and absence of alarm symptoms, predicted functional clinical diagnosis with sensitivity 0.35 (95% confidence interval 0.27-0.43), specificity 0.60 (0.46-0.73), positive predictive value 0.71 (0.61-0.82), and negative predictive value of 0.24 (0.17-0.32). CONCLUSIONS: The Rome III criteria for abdominal pain are not specific enough to rule out organic causes. Alarm symptoms do not differentiate between organic and functional abdominal pain.

European pediatricians' approach to children with GER symptoms: survey of the implementation of 2009 NASPGHAN-ESPGHAN guidelines.

OBJECTIVE: The aim of this study was to evaluate the current implementation of the 2009 North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition-European Society for Pediatric Gastroenterology, Hepatology, and Nutrition guidelines, and to assess proton pump inhibitors' (PPIs) prescribing patterns among pediatricians from different European countries. METHODS: A randomly identified sample of general pediatricians distributed across 11 European countries. They were asked to complete a case report-structured questionnaire investigating their approaches to infants, children, and adolescents with symptoms suggestive of gastroesophageal reflux. RESULTS: A total of 567 European general pediatricians completed the study questionnaire. Only 1.8% of them showed complete adherence to the guidelines. Forty-six percent of them reported that they diagnose gastroesophageal reflux disease based on clinical symptoms irrespective of the age of the child; 39% prescribe PPIs in infants with unexplained crying and/or distressed behavior and 36% prescribe PPIs in infants with uncomplicated recurrent regurgitation and vomiting; 48% prescribed PPIs in children younger than 8 to 12 years with vomiting and heartburn, without specific testing; 45% discontinue PPI therapy abruptly rather than tapering the dose. The overall rate of pediatricians overprescribing PPIs was 82%. CONCLUSIONS: The overall results of our survey show that the majority of pediatricians are unaware of 2009 North American Society for Pediatric Gastroenterology, Hepatology, and Nutrition-European Society for Pediatric Gastroenterology, Hepatology, and Nutrition reflux guidelines and often prescribe PPIs despite a lack of efficacy for the symptoms being treated. The overdiagnosis of gastroesophageal reflux disease places undue burden on both families and national health systems, which has not been affected by the publication of international guidelines.

Occult constipation: faecal retention as a cause of recurrent abdominal pain in children.

UNLABELLED: Recurrent abdominal pain (RAP) in children is generally believed to be functional. In practice, many children with RAP become pain-free with laxative therapy. The aims of the study were to establish the role of (occult) constipation in RAP and to investigate whether patients diagnosed with (occult) constipation could be identified by history and physical examination. During 2 years, all patients (age 4-16 years, secondary referral) fulfilling Apley criteria of RAP were included. After exclusion of gastrointestinal infections and food intolerance, laxatives were advised when pain persisted. (Occult) constipation was defined as 'abdominal pain disappearing with laxative treatment and not reappearing within a 6 month follow up period'; 'occult constipation' was diagnosed in patients who did not fulfil the Rome criteria of constipation. Two hundred children (87 M; median age 8.8 years) were evaluated. (Occult) constipation was found in 92 patients (46 %). Of these, 18 had considerable relief of pain when treated for a somatic cause but experienced complete relief only after laxative measures; they were considered to have two diagnoses. Using multivariate analysis, a simple model was developed with cystitis in past history, early satiety and flatulence as predictors for (occult) constipation. The risk of (occult) constipation ranged from 18/58 if no predictor was present to 4/4 if all three were present. CONCLUSION: Laxatives played a pivotal role in the recovery of patients with RAP. We developed a simple model to identify patients at risk of having (occult) constipation.

[One guideline for diagnosing cow milk allergy; for primary, secondary and tertiary care in the Netherlands]. / 1 richtlijn voor diagnostiek van koemelkallergie; voor de eerste, tweede en derde lijn in Nederland.

The aims of the new Dutch guideline 'Diagnosing Cow Milk Allergy in Children in the Netherlands' are to provide an evidence-based instrument for the reliable and safe diagnosis of cow milk allergy and to improve the collaboration between health care professionals at well-baby clinics, general practices and hospitals. The double-blind, placebo-controlled cow-milk provocation test is the only test available for establishing an allergy to cows' milk. The double-blind provocation test in children at a low risk of severe reactions may be performed at the better-equipped well-baby clinics and at all general practices, thereby shifting care from secondary to primary care. The use of extensively hydrolysed formulas based on whey protein as well as on casein can be advised for a cow-milk-free diet. The general practitioner and well-baby physician should collaborate in designating responsibilities during the diagnostic phase of cow milk allergy in primary care.

[Perianal fistulae and abscesses in children: consider Crohn's disease]. / Perianale fistels en abcessen bij kinderen: denk aan de ziekte van Crohn.

While perianal fistulae and abscesses in infants usually occur as an isolated phenomenon, in older children Crohn's disease might be the underlying etiologic factor. We present four children of different ages with recurrent perianal fistulae and abscesses. Only after the diagnosis Crohn's disease was established and adequate treatment was initiated, the perianal lesions disappeared without further surgical treatment. Perianal fistulae and abscesses in older children should raise the suspicion of Crohn's disease, in which case therapy is indicated to induce and maintain remission of the underlying disease instead of surgical intervention.