PMID- 34447870 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210828 IS - 2364-3722 (Print) IS - 2196-9736 (Electronic) IS - 2196-9736 (Linking) VI - 9 IP - 8 DP - 2021 Aug TI - Extent of eosinophilic esophagitis predicts response to treatment. PG - E1234-E1242 LID - 10.1055/a-1492-2650 [doi] AB - Background and study aim The clinical impact of eosinophilic esophagitis (EoE) limited to the distal esophagus (Lim-EE) vs. diffuse involvement (Dif-EE) is unknown. This study compared clinical characteristics and outcomes of Lim-EE vs. Dif-EE. Patients and methods This retrospective, single-center study of patients with EoE between December 2011 and December 2019 evaluated treatment response based on repeated pathology and/or clinical improvement using comparative statistics. Results 479 patients were identified (126 Lim-EE, 353 Dif-EE). Lim-EE patients had a higher incidence of endoscopically identified esophagitis (23.0 % vs. 14.7 %; P = 0.04), were older (50.8 [SD 16.2] vs. 46.4 [SD 15.3] years; P = 0.007), and were more likely to present with iron deficiency anemia (5.6 % vs. 1.7 %; P = 0.05), dyspepsia (15.1 % vs. 8.8 %; P = 0.06) or for Barrett's surveillance (10.3 % vs. 3.7 %; P = 0.02). Patients with Dif-EE presented more frequently with dysphagia (57.2 % vs. 45.2 %; P = 0.02). Both groups had similar proton pump inhibitor (87.2 % vs. 83.3 %; P = 0.37) and steroid (12.8 % vs. 21.4 %; P = 0.14) use. Patients with Lim-EE had a better clinicopathologic response (61.5 % vs. 44.8 %; P = 0.009). On multivariate analysis, EoE extent predicted treatment response with an odds ratio of 1.89 (95 % confidence interval 1.13-3.20; P = 0.02). However, treatment response based only on repeat biopsy results showed no statistical difference between Lim-EE (52.5 %) and Dif-EE (39.7 %; P = 0.15). Conclusions Lim-EE may represent a distinct phenotype separate from Dif-EE, with more overlap with gastroesophageal reflux disease and better treatment response. CI - The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/). FAU - Ghoz, Hassan AU - Ghoz H AD - Division of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, Florida, United States. FAU - Stancampiano, Fernando F AU - Stancampiano FF AD - Division of Internal Medicine, Mayo Clinic, Jacksonville, Florida, United States. FAU - Valery, Jose R AU - Valery JR AD - Division of Internal Medicine, Mayo Clinic, Jacksonville, Florida, United States. FAU - Nordelo, Katie AU - Nordelo K AD - Clinical Research Internship Study Program (CRISP), Mayo Clinic, Jacksonville, Florida, United States. FAU - Malviya, Balkishan AU - Malviya B AD - Division of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, Florida, United States. FAU - Lacy, Brian E AU - Lacy BE AD - Division of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, Florida, United States. FAU - Francis, Dawn AU - Francis D AD - Division of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, Florida, United States. FAU - DeVault, Kenneth AU - DeVault K AD - Division of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, Florida, United States. FAU - Bouras, Ernest AU - Bouras E AD - Division of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, Florida, United States. FAU - Krishna, Murli AU - Krishna M AD - Department of Laboratory Medicine and Pathology, Mayo Clinic, Jacksonville, Florida, United States. FAU - Palmer, William C AU - Palmer WC AD - Division of Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, Florida, United States. LA - eng PT - Journal Article DEP - 20210716 PL - Germany TA - Endosc Int Open JT - Endoscopy international open JID - 101639919 PMC - PMC8383079 COIS- Competing interests The authors declare that they have no conflict of interest. EDAT- 2021/08/28 06:00 MHDA- 2021/08/28 06:01 PMCR- 2021/08/01 CRDT- 2021/08/27 06:59 PHST- 2020/11/18 00:00 [received] PHST- 2021/03/15 00:00 [accepted] PHST- 2021/08/27 06:59 [entrez] PHST- 2021/08/28 06:00 [pubmed] PHST- 2021/08/28 06:01 [medline] PHST- 2021/08/01 00:00 [pmc-release] AID - 10.1055/a-1492-2650 [doi] PST - ppublish SO - Endosc Int Open. 2021 Aug;9(8):E1234-E1242. doi: 10.1055/a-1492-2650. Epub 2021 Jul 16.