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The clinical presentation of celiac disease in 1030 Swedish children: changing features over the past 41 years: a long-term follow-up study
Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet.
Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för mikrobiologi och molekylär medicin. Linköpings universitet, Hälsouniversitetet.
Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Medicinska fakulteten. Region Östergötland, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Norrköping.
Linköpings universitet, Institutionen för klinisk och experimentell medicin, Avdelningen för kliniska vetenskaper. Linköpings universitet, Hälsouniversitetet. Östergötlands Läns Landsting, Barn- och kvinnocentrum, Barn- och ungdomskliniken i Linköping.
2016 (engelsk)Inngår i: Digestive and Liver Disease, ISSN 1590-8658, E-ISSN 1878-3562, Vol. 48, nr 1, s. 16-22Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Background- Aims

The features of pediatric celiac disease have changed in recent decades. We hypothesized that the age at diagnosis continued to increase, whereas the severity of symptoms should decrease.

Methods

In the present study, filed data about 1030 pediatric patients diagnosed with celiac disease between 1973 and 2013 were analysed. Available information covered 99.8% of the small bowel biopsies, and included information on sex, age, and clinical symptoms.

Results

The age at diagnosis increased significantly, from a mean of 2.2 years during the first 10 years to 8.2 years the current years. The proportion of children with severe symptoms declined from 92.8% to 78%, as did the proportion of biopsies characterized by severe pathology. In recent years, the monosymptomatic form of celiac disease has been more common, and the number of patients detected at screening has increased. The frequency of patients with gastrointestinal symptoms, extra-intestinal symptoms, and failure to thrive and/or short stature at presentation decreased.

Conclusions

The mean age of newly diagnosed patients increased the last 15 years. Currently celiac disease shows a less severe picture in terms of symptoms and intestinal pathology. Younger children suffer primarily from gastrointestinal symptoms and growth failure, and adolescents from extra-intestinal manifestations.

sted, utgiver, år, opplag, sider
Elsevier, 2016. Vol. 48, nr 1, s. 16-22
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-122369DOI: 10.1016/j.dld.2015.09.018ISI: 000368761300004OAI: oai:DiVA.org:liu-122369DiVA, id: diva2:865974
Merknad

Funding agencies: Medical Research Council of Southeast Sweden; County Council of Ostergotland; Swedish Research Council

Tilgjengelig fra: 2015-10-30 Laget: 2015-10-30 Sist oppdatert: 2018-01-10bibliografisk kontrollert
Inngår i avhandling
1. Demographics, clinical features and treatment of pediatric celiac disease
Åpne denne publikasjonen i ny fane eller vindu >>Demographics, clinical features and treatment of pediatric celiac disease
2015 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Celiac disease (CD) is a chronic small intestinal immune-mediated enteropathy triggered by ingestion of gluten-containing food in genetically predisposed subjects. The enteropathy is presented with a wide variety of clinical manifestations, which can occur even outside the gastrointestinal tract. In the majority of cases, the diagnosis of CD is based on a small intestinal biopsy showing mucosal alterations, i.e. intraepithelial lymphocytosis, crypt hyperplasia, and villous atrophy. The treatment, gluten-free diet (GFD), has recently been revised with the addition of gluten-free oats. Oats give a more diversified nutrition and increase the fibre content. The use of oats in CD is though still debated in some reports. A strict life-long adherence to the GFD can be problematic, especially for pediatric CD patients. Sweden reported of one of the highest observed CD prevalences worldwide, i.e. 3%, among 12-year-olds born during what has been described as “the Swedish celiac epidemic”, 1984−1996.

The aims of this thesis were to elucidate how pediatric CD has changed during a 41-year period in Sweden, i.e. 1973−2013, in terms of clinical presentation, disease severity, incidence, and demographics. We also wanted to adress the compliance to the GFD, the use of oats in the GFD and the safety of oats inclusion in the diet by measuring urinary nitric oxide (NO) metabolites.

Filed information provided data about 2856 pediatric patients  investigated for suspected CD between 1973 and 2013; of which 1030 patients were diagnosed with CD. After the data analyses the mean age of CD patients was shown to increase after the celiac epidemic period. Currently, CD shows a less severe picture in terms of symptoms and intestinal pathology. Younger children suffer primarily from gastrointestinal symptoms and growth failure, whereas extra-intestinal manifestations are more often displayed among adolescents.

We also reported an unusually high pediatric CD incidence rate and  cumulative incidence, likely the highest reported worldwide. We hypothesised that the introduction of new antibody tests would affect the diagnostic activity and accuracy in performing small intestinal biopsies for CD investigation. However, the outcome of diagnostic activity and accuracy could not clearly be attributed to the use of antibody tests due to changes occurring in parallel during the 41-year study period, e.g. a different pattern of symptoms at presentation and improved knowledge of the disease among parents and health professionals.

In a questionnaire-based study our patient group reported a high  compliance to the GFD. Long duration of the GFD may, however, influence compliance negatively. Oats have been included to the GFD of our study population in most of the cases without reporting major complications related to their well-being.

The urinary measurements of NO metabolites revealed two patient groups, one with high and one with low levels. The two populations did not differ regarding sex, age, compliance to the GFD or oats consumption. Factors such as nitrate-rich foods, asthma or urinary tract infections did not affect the results. The high levels could possibly be attributed to poor adherence to the GFD, sensitivity to oats, or some unknown factor(s). The elevated levels of NO metabolites might indicate mucosal inflammation and pinpoint the need of careful follow-up of children on oats-containing GFD as not all of them might tolerate oats.

sted, utgiver, år, opplag, sider
Linköping: Linköping University Electronic Press, 2015. s. 76
Serie
Linköping University Medical Dissertations, ISSN 0345-0082 ; 1473
HSV kategori
Identifikatorer
urn:nbn:se:liu:diva-122371 (URN)10.3384/diss.diva-122371 (DOI)978-91-7685-977-3 (ISBN)
Disputas
2015-11-19, Linden, ing 65 pl 9, Campus US, Linköping, 13:00 (engelsk)
Opponent
Veileder
Forskningsfinansiär
Region ÖstergötlandMedical Research Council of Southeast Sweden (FORSS)Region ÖstergötlandSwedish Research Council
Tilgjengelig fra: 2015-10-30 Laget: 2015-10-30 Sist oppdatert: 2019-01-07bibliografisk kontrollert

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