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Evaluation of mucosal status in the follow-up of pediatric patients with celiac disease: the role of serology. | LitMetric

Evaluation of mucosal status in the follow-up of pediatric patients with celiac disease: the role of serology.

Eur J Pediatr

Div. of Pediatric Gastroenterology, Hepatology and Nutrition, Marmara University School of Medicine, Başıbüyük Campus, Maltepe Başıbüyük Yolu Sok. No:9/1, 34854, Maltepe, Istanbul, Turkey.

Published: September 2022

AI Article Synopsis

Article Abstract

Unlabelled: Recent guidelines suggest non-biopsy serology-based approach for the diagnosis of celiac disease; however, there is no evidence-based data regarding noninvasive follow-up of mucosal healing. The aim of this study is to investigate the efficacy of serology in reflecting mucosal status in the follow-up of pediatric patients with celiac disease. This is a validation study conducted at a university hospital. Patients who had biopsy proven celiac disease (Marsh III) at diagnosis, and had been followed-up for at least 12 months, were prospectively evaluated with duodenal biopsies. tTG-IgA and EMA tests were performed on the day of endoscopy. One hundred four patients with a mean age of 7.4 ± 4.02 years were included in the study. The sensitivity and specificity of tTG-IgA were 85.2% and 61% respectively, with a high negative predictive value (NPV) of 92.2% but a very low positive predictive value (PPV) of 43.4%. We found that a cutoff value of 68.5 U/mL for tTG-IgA had a sensitivity, specificity of 85.2% and 85.7% respectively. The AUC was 0.891. The sensitivity and specificity of EMA was 77.8% and 87% respectively, with a high NPV of 91.8% but low PPV of 67.7%.

Conclusion: This study suggests that negative tTG-IgA and/or EMA can be used as an indicator of mucosal improvement in the follow-up of pediatric patients with celiac disease. However, positive serology (i.e., < 10 × ULN) may be misleading in reflecting mucosal status in the follow-up of pediatric patients with celiac disease.

What Is Known: • The tissue transglutaminase IgA (tTG-IgA) and endomysium IgA (EMA) tests are widely used, sensitive and reliable diagnostic tests, but their role in monitoring adherence to dietary treatment in celiac patients has not yet been demonstrated. • There is still no reliable and non-invasive marker of persistent villous atrophy or mucosal recovery.

What Is New: • Negative celiac serology detected in the follow-up of pediatric patients with celiac disease was successful in demonstrating histopathological mucosal healing. • Positive celiac serology, which is highly reliable in the diagnosis of celiac disease, has not been successful in reflecting mucosal status when used in the follow-up of pediatric patients with celiac disease.

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Source
http://dx.doi.org/10.1007/s00431-022-04535-3DOI Listing

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