{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,29]],"date-time":"2026-07-29T13:07:32Z","timestamp":1785330452448,"version":"3.55.0"},"reference-count":30,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2021,7,12]],"date-time":"2021-07-12T00:00:00Z","timestamp":1626048000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["JPGN rep."],"published-print":{"date-parts":[[2021,8]]},"abstract":"<jats:sec><jats:title>Objectives:<\/jats:title><jats:p>The aim of the study was to determine the correlation between duodenal mucosal biopsies and tissue transglutaminase immunoglobulin A (tTG\u2010IgA) levels in pediatric patients with biopsy\u2010confirmed celiac disease (CD) and eosinophilic gastrointestinal disorders (EGID) who have had repeat duodenal biopsies after initiating a gluten\u2010free diet.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods:<\/jats:title><jats:p>A retrospective chart review was performed of children with CD and EGID seen at the Children's Hospital of Philadelphia between 2003 and 2018. Data collected included duodenal biopsy pathology, celiac serology including tTG\u2010IgA, and symptom reports. Duodenal healing was defined as normal villous architecture and no intraepithelial lymphocytes. These data were compared with tTG\u2010IgA level. Data were analyzed with Fisher exact test and <jats:italic>t<\/jats:italic> test methods.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results:<\/jats:title><jats:p>Thirty\u2010nine patients had normal IgA and diagnoses of both CD and EGID. At second biopsy, 44% (17\/39) of patients showed no histologic evidence of active CD and 36% (14\/39) of patients had negative tTG\u2010IgA values. Sixty percent (9\/15) of patients with no evidence of CD on biopsy had abnormal tTG\u2010IgA levels, and 57% (8\/14) of patients with normal tTG\u2010IgA levels had evidence of active disease on biopsy.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions:<\/jats:title><jats:p>The data show that an abnormal tTG\u2010IgA drawn after initiation of a gluten\u2010free diet is not correlated with duodenal mucosal injury in pediatric patients with CD and EGID. This suggests that serologic surveillance with tTG\u2010IgA is not sufficient to monitor CD intestinal healing in this patient cohort. Persistent elevations of tTG\u2010IgA in CD patients with normal duodenal biopsies should prompt investigation into other potential causes.<\/jats:p><\/jats:sec>","DOI":"10.1097\/pg9.0000000000000097","type":"journal-article","created":{"date-parts":[[2021,7,12]],"date-time":"2021-07-12T15:00:10Z","timestamp":1626102010000},"source":"Crossref","is-referenced-by-count":3,"title":["Repeat Biopsy to Assess Duodenal Healing in Children With Celiac Disease and Eosinophilic Gastrointestinal Disorders"],"prefix":"10.1002","volume":"2","author":[{"given":"Kaitlin","family":"Payne","sequence":"first","affiliation":[{"name":"Division of Gastroenterology, Hepatology, and Nutrition The Children's Hospital of Philadelphia Philadelphia Pennsylvania"},{"name":"Sidney Kimmel Medical College at Thomas Jefferson University Philadelphia Pennsylvania"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lydia","family":"Ramharack","sequence":"additional","affiliation":[{"name":"Division of 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