Esophagus to Small Intestine

Am J Gastroenterol. 2023;118(2):263–8

Allen-Brady K, Colletier KJ, Woller S, Eliason K, Uchida AM, Ro G, Newman M, Peterson KA

Eosinophilic gastritis and enteritis are increased in families with eosinophilic esophagitis

Introduction: There are limited data on the familial risk of distal eosinophilic gastrointestinal diseases (EGIDs) in patients with eosinophilic esophagitis (EoE). The authors analyzed the risk of eosinophilic gastritis/gastroenteritis (EG/EGE) and eosinophilic colitis (EC) as forms of distal EGIDs using International Disease Classification 9/10 codes in subjects with EoE and their relatives.
Methods: The Utah Population Database is a resource that links genealogy information and medical records in Utah. The authors identified EGIDs in probands and their first-degree (FDRs), second-degree (SDRs), and third-degree (TDRs) relatives in the Utah Population Database. Relative risk and 95% confidence intervals were estimated. All individuals with inflammatory bowel disorder were eliminated to avoid misdiagnosis with EGIDs.
Results: 8455 subjects with EoE, 396 with EG/EGE, and 172 with EC were included. Probands with EoE were at increased risk of EG/EGE and EC. Risks of EG/EGE were increased among FDRs and SDRs of probands with EoE, even without concomitant EoE in the relatives. Increased risk of EG/EGE in FDRs and SDRs was also present for EoE probands without EG/EGE or EC. The authors observed no isolated familial aggregation of EG/EGE after excluding cases with comorbid EoE. EC probands without EoE were at increased risk of EG/EGE, but no evidence of familial risk of EC was observed.

Discussion: The relative risk of eosinophilic gastritis/gastroenteritis (EG/EGE) is significant among relatives of patients with eosinophilic esophagitis, suggesting that shared genetic factors exist among these eosinophilic gastrointestinal diseases. EG/EGE and eosinophilic colitis showed limited familial clustering, although sample sizes were small.

K.A. Peterson, M.D., Professor of Medicine, Division of Gastroenterology, Department of Internal Medicine, University of Utah, Salt Lake City, UT, USA,

DOI: DOI: 10.14309/ajg.0000000000002021

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