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[Current aspects in the clinical picture and diagnosis of gluten enteropathy in children].

Clinical, biochemical, bacteriologic, instrumental and morphological investigations were performed in 52 children with celiac disease (15 patients with the acute phase and 37 ones during incomplete remission proved by clinical and laboratory data). Incidence of secondary gastroenterological affections presenting as chronic gastroduodenitis, chronic pancreatitis or alterations in the small intestinal mucosa was monitored. Therefore, follow-up of the children with the above diseases was found to be mandatory as was a long-term pathogenetically substantiated treatment with gliadin-free diet.

Adolescent↗

[Comparative study of serological markers for intolerance to gluten].

In France as well as in most of the other European countries, the prevalence of coeliac disease is underestimated. In order to point out a good screening test, we have determined the most sensitive combination (technique-marker) for the diagnosis of the disease among 81 individuals (50 with coeliac disease and 31 controls). Serum anti-gliadin antibodies were measured using three methods: the qualitative dot-blot (Gliastick-Eurospital) and two quantitative methods Elisa (homemade-Saint-Antoine Hospital and alpha-Gliatest-Eurospital); serum anti-endomysium antibodies (EmA) and anti-reticulin antibodies (ARA) were detected using an indirect immunofluorescence assay. We have shown that the simple and fast Gliastick test can fulfil the selected criterion with a sensitivity of 0.90. Nevertheless, uncertain and positives results have to be confirmed by one of the two more specific quantitative tests. The two other markers (ARA and EmA) have shown a better specificity (1) but they were less sensitive (0.54 and 0.56 for ARA and EmA respectively). Thus, they have both to be used as confirmation tests and for follow-up with supervision of the compliance to recommended diet. In conclusion, the Gliastick can be considered as a good screening test for the detection of anti-gliadin antibodies and it would represent the expected help to determine the prevalence of coeliac disease on a large-scale map.

Adult↗

Diagnosis of gluten-sensitive enteropathy: is exclusive reliance on histology appropriate?

OBJECTIVE: Coeliac disease is a prevalent disorder but frequently remains undiagnosed because of varied modes of clinical presentation. In this study, methods for the detection of coeliac disease were evaluated in a clinical practice setting. METHODS: Small intestinal histology, IgA anti-endomysial and IgG anti-gliadin antibody tests were performed on 441 unselected, consecutive patients under investigation for small intestinal disease. Response to treatment and other clinical events were monitored over the ensuing years. RESULTS: Untreated coeliac disease was diagnosed in 97 patients and was excluded in 344. At clinical presentation, the endomysial antibody test was positive in 84 of the 97 untreated coeliac patients (sensitivity 87%) and negative in 340 of the 344 non-coeliac patients (specificity 99%). A typical histological lesion was found in 83 of the 97 coeliac patients (sensitivity 86%) but was absent in all 344 non-coeliacs (specificity 100%). The sensitivity of the gliadin antibody test was 69% and the specificity was 71%. CONCLUSIONS: In unselected patients attending a gastroenterology clinic, small bowel histology and endomysial antibody serology show similar predictive value in the diagnosis of coeliac disease. These results emphasize that a combination of clinical, histological and serological criteria are required for effective diagnosis of this disorder. Exclusive reliance on histology or serology will result in failure to make a diagnosis in a significant proportion of patients.

Adolescent↗

Celiac disease: evaluation of the diagnosis and dietary compliance in Canadian children.

OBJECTIVES: We sought to characterize the clinical features at presentation as well as the associated disorders, family history, and evaluation of compliance with a gluten-free diet in children with celiac disease from across Canada. STUDY DESIGN: All members (n = 5240) of the Canadian Celiac Association were surveyed with a questionnaire. Of the 2849 respondents with biopsy-confirmed celiac disease, 168 who were < 16 years old provided the data reported here. RESULTS: The mean age when surveyed was 9.1 +/- 4.1 years, and 58% were female. Median age at diagnosis was 3.0 years with a range of 1 to 15 years. Presenting symptoms included abdominal pain (90%), weight loss (71%), diarrhea (65%), weakness (64%), nausea/vomiting (53%), anemia (40%), mood swings (37%), and constipation (30%). Almost one third of families consulted > or = 2 pediatricians before confirmation of the diagnosis. Before the recognition of celiac disease, other diagnoses received by these children included anemia (15%), irritable bowel syndrome (11%), gastroesophageal reflux (8%), stress (8%), and peptic ulcer disease (4%). A serological test was performed to screen for celiac disease in 70% of those in this population. Eight percent had either type 1 diabetes mellitus or a first-degree relative with celiac disease. Almost all respondents (95%) reported strict adherence to a gluten-free diet, and 89% noted improved health. Reactions after accidental gluten ingestion developed in 54% of the children between 0.5 and 60 hours after ingestion with a median of 2.0 hours. Reactions included abdominal discomfort (87%), diarrhea (64%), bloating (57%), fatigue (37%), headache (24%), and constipation (8%), and most displayed > 1 symptom. Although most adjusted well to their disease and diet, 10% to 20% reported major disruptions in lifestyle. Twenty-three percent felt angry all or most of the time about following a gluten-free diet. Only 15% avoided traveling all or most of the time, and during travel, 83% brought gluten-free food with them all of the time. More than half of the families avoided restaurants all or most of the time. Twenty-eight percent of the respondents found it extremely difficult to locate stores with gluten-free foods, and 27% reported extreme difficulty in finding gluten-free foods or determining if foods were free of gluten. Sixty-three percent of the respondents felt that the information supplied by the Canadian Celiac Association was excellent. Gastroenterologists provided excellent information to 44%, dietitians to 36%, and the family physician to 11.5%. When asked to select 2 items that would improve their quality of life, better labeling of gluten-containing ingredients was selected by 63%, more gluten-free foods in the supermarket by 49%, gluten-free choices on restaurant menus by 49%, earlier diagnosis of celiac disease by 34%, and better dietary counseling by 7%. CONCLUSIONS: In Canada, children with celiac disease present at all ages with a variety of symptoms and associated conditions. Delays in diagnosis are common. Most children are compliant with a gluten-free diet. A minority of these children experience difficulties in modifying their lifestyles, and gluten-free foods remain difficult to obtain.

Adolescent↗

[Dermatitis herpetiformis occuring in patients with celiac disease in childhood].

BACKGROUND: Dermatitis herpetiformis (DH) is a chronic papulovesicular immune-mediated disorder associated with gluten-sensitive enteropathy. We report eight cases in which DH appeared many years after celiac disease (CD) in child. PATIENTS AND METHODS: The diagnosis of CD was based on histological features of total or subtotal villous atrophy, full remission after withdrawal of gluten from the diet, and eventually circulating antibodies (IgA gliadin, antireticulin and antiendomysium) at the time of diagnosis and their disappearance under gluten-free diet. The diagnosis of DH was made from clinical findings, histological examination of the involved skin and direct immunofluorescence microscopy of normal or perilesional skin. HLA class II typing was performed in five patients. DRB1, DQA1, DQB1 and DBP1 alleles were studied. RESULTS: DH appeared between 3 and 22 years after the initial diagnosis of CD. Five patients did not show at that time any digestive symptoms. In three cases, a break in the gluten-free diet or a recent revival of the normal diet preceded the rash. In only one case, DH appeared while the patient was under gluten-free diet. In three patients, the rash appeared many years after the gluten-free diet had been stopped. Phenotype DR3 and/or DR7 of the celiac disease could be found in four of the five patients studied; three of them were found to bear DQW2. The DR2 allele was not found in any of the five tested patients. DISCUSSION: These eight cases illustrate the absence of precise nosological barrier between gluten-sensitive enteropathy of the DH and that observed in CD. The presence of the DR7 allele, and especially the absence of the DR2 allele, could explain the particularly severe and symptomatic course of the enteropathy in these patients. The delay in the appearance of DH, after a very variable period of normal diet, could correspond to the necessary time for progressive accumulation of IgA (or immune complex IgA-gluten) in the skin after a digestive sensitization to gluten. The preventive role of gluten-free diet is thus probable. CONCLUSION: CD and DH likely correspond to two different stages of the same disease, thus requiring a prolonged follow-up of both digestive and skin tissues. Long-term eviction of gluten to prevent eventual DH must be balanced with the demand and the cost of such a diet.

Celiac Disease↗