Eosinophilic esophagitis (EoE) is a chronic, immune-mediated esophageal disease characterized by eosinophil-predominant inflammation of the esophageal mucosa (≥…
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Eosinophilic esophagitis (EoE) is a chronic, immune-mediated esophageal disease characterized by eosinophil-predominant inflammation of the esophageal mucosa (≥15 eosinophils per high-power field on biopsy), leading to esophageal dysfunction. EoE prevalence has increased markedly over the past 30 years, now affecting approximately 1 in 2,000 Americans (~160,000 cases). It is the second most common cause of chronic esophagitis (after GERD) and the leading cause of food impaction. EoE predominantly affects White males and is strongly associated with atopic comorbidities (atopic dermatitis, asthma, allergic rhinitis, food allergies). Dupilumab became the first biologic and first FDA-approved therapy for EoE in 2022.
This information is for educational purposes only. Always consult a qualified healthcare professional for diagnosis and personalized treatment.
Dysphagia (difficulty swallowing solid foods) — classic and most common symptom in adults
Food impaction requiring emergent endoscopic disimpaction (characteristic early presentation)
Chest pain (non-cardiac, esophageal spasm or discomfort)
Heartburn and regurgitation (can overlap with or mimic GERD)
Epigastric or abdominal pain (especially in children)
Nausea and vomiting
Failure to thrive and feeding difficulties in infants and young children
Food aversions and dietary restriction behaviors (avoidance of trigger foods)
Slow eating ('tardy eater') and extensive food chewing behaviors to avoid impaction
Upper endoscopy (EGD) with biopsies — required for diagnosis
Biopsy findings: ≥15 eosinophils/HPF in at least one esophageal biopsy (peak eosinophil count)
Endoscopic features: esophageal rings (trachealization/corrugation), white exudates/plaques, furrows (linear), edema, narrowing/stricture
EoE Endoscopic Reference Score (EREFS) — standardized endoscopic scoring
Rule out GERD as cause of eosinophilia (PPI trial or pH monitoring)
EoE Histology Scoring System (EoEHSS) — graded biopsy analysis
Allergy testing (skin prick test, patch testing, specific IgE) — to identify food triggers
Esophagram (barium swallow) — if stricture suspected
Esophageal manometry — rarely needed; esophageal dysmotility common
Dupilumab (Dupixent)
IL-4Rα monoclonal antibody (blocks IL-4 and IL-13). First FDA-approved therapy for EoE (2022). 300 mg SC weekly for patients ≥12 years weighing ≥40 kg. LIBERTY EoE TREET program showed histologic remission (~60% achieve <6 eos/HPF) and dysphagia improvement.
Proton Pump Inhibitors (PPIs)
High-dose PPI therapy (omeprazole 20–40 mg BID or equivalent) achieves histologic remission in ~30–50% of EoE patients (PPI-responsive EoE). Used as first-line empiric therapy before escalation. Ongoing PPI may also enhance topical steroid efficacy.
Topical Swallowed Corticosteroids (Fluticasone, Budesonide)
Swallowed (not inhaled) fluticasone propionate MDI (880–1760 mcg/day) or budesonide oral suspension (3 mg/day). Budesonide effervescent tablet (SB012, Jorveza) available in Europe. Histologic remission in 50–60%. Esophageal candidiasis risk.
Elimination Diet (6-Food, 4-Food, 2-Food Elimination Diets)
Remove the 6 most common EoE trigger foods (milk, wheat, eggs, soy, nuts, seafood) with sequential reintroduction guided by endoscopy. Up to 70% histologic remission with 6-food elimination. Requires dietitian and motivated patient. Milk and wheat are most common single triggers.
Esophageal Dilation
Mechanical treatment for esophageal stricture and dysphagia. Does not treat underlying inflammation. Effective for symptom relief. Risk of mucosal tear (esophageal chest pain common post-procedure; perforation rare).
Food elimination diets require structured nutritional guidance from a registered dietitian
Keep a detailed food diary to identify personal trigger foods
Cut food into small pieces and chew thoroughly before swallowing
Avoid tough meats, crusty bread, and sticky foods that increase impaction risk
Know how to recognize food impaction: inability to swallow saliva, acute dysphagia — seek emergency care promptly
Treat co-existing atopic conditions (AD, asthma, allergic rhinitis) — may reduce overall Th2 burden
Carry emergency dilating medication (liquid medications easier to swallow during flares)
Regular endoscopic monitoring every 6–12 months on therapy to confirm remission
Prognosis
EoE is a chronic disease without a known cure, but excellent long-term disease control is achievable. Without treatment, fibrotic remodeling and stricture formation progress over years. With PPI, swallowed steroids, or dupilumab, histologic remission is achievable in the majority of patients. Dupilumab provides the most durable histologic and symptomatic remission with the best safety profile. Food impactions decrease dramatically with treatment. Patients require ongoing therapy as discontinuation typically leads to recurrence. No increased risk of esophageal cancer has been established.
Eosinophilic Esophagitis is a medical condition classified under Gastroenterology. Eosinophilic esophagitis (EoE) is a chronic, immune-mediated esophageal disease characterized by eosinophil-predominant inflammation of the esophageal mucosa (≥15 eosinophils per high-power field on biopsy), leading to esophageal dysfunction. It is the second most common cause of chronic esophagitis and the leading cause of food impaction. Dupilumab became the first biologic and first FDA-approved therapy for EoE in 2022. Understanding Eosinophilic Esophagitis is essential for patients, families, and healthcare providers to ensure timely diagnosis, appropriate treatment, and optimal outcomes.
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The information on this page is for educational purposes only and is not intended as medical advice, diagnosis, or treatment. Always consult your doctor or a qualified healthcare provider with any questions about a medical condition.