Abstract
Background
Eosinophilic gastroenteritis (EGE) is a rare, chronic inflammatory condition of the gastrointestinal tract. Little is known about its natural history and treatment outcomes. The aims of our analysis were to describe clinical presentation, response to current medical treatments, and to evaluate the response of refractory EGE to anti-integrin therapy.
Methods
Patients with confirmed diagnosis of EGE fulfilling the diagnostic criteria: (1) the presence of gastrointestinal symptoms, (2) dense eosinophilic infiltration of the gastrointestinal mucosa, and (3) exclusion of other conditions leading to gastrointestinal eosinophilia were included in this analysis. In patients non-responding to corticosteroids and/or anti-TNF treatment the integrin blocker vedolizumab was used.
Results
EGE patients (n = 22) were predominantly female (63%) with a median age at diagnosis of 41.5 years. The most frequent symptoms were abdominal pain (100%), diarrhea (59%), nausea/vomiting (36%), and bloating (27%). No pathognomonic endoscopic alterations were found. Eosinophilic infiltration was observed in the majority of patients in more than one segment. Patients were treated with systemic steroids, topical, and enteral release steroids in 21/22 (95%) patients, proton pump inhibitors in 7/22 (32%), TNFα inhibitors in 3/22 (14%), and vedolizumab in 4/22 (18%) patients. In 3/4 of steroid-refractory patients vedolizumab induced a clinical and histological improvement.
Conclusions
The combination of highly variable clinical presentation, subtle endoscopic abnormalities, and involvement of several GI segments undermines the difficulty to diagnose EGE and the need for structured biopsy sampling. Corticosteroids were efficient in the majority of patients to induce remission. Response to the integrin blocker vedolizumab suggests further assessment in refractory cases.
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Abbreviations
- EoE:
-
Eosinophilic esophagitis
- EGE:
-
Eosinophilic gastroenteritis
- EGIDS:
-
Eosinophilic gastrointestinal diseases
- HPF:
-
High power field
- IgE:
-
Immunoglobulin E
- PGA:
-
Patient global assessment
- PPI:
-
Proton pump inhibitor
- TNFα:
-
Tumor necrosis factor alpha
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PH and AS conceptualized and designed the clinical question and drafted the initial manuscript; TG and LB evaluated the patient data and drafted the initial manuscript; CB performed histological analysis and critically reviewed the manuscript. All authors read and approved the final manuscript as submitted.
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Grandinetti, T., Biedermann, L., Bussmann, C. et al. Eosinophilic Gastroenteritis: Clinical Manifestation, Natural Course, and Evaluation of Treatment with Corticosteroids and Vedolizumab. Dig Dis Sci 64, 2231–2241 (2019). https://doi.org/10.1007/s10620-019-05617-3
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DOI: https://doi.org/10.1007/s10620-019-05617-3