Treatment options for eosinophilic esophagitis include medications like acid reducers and swallowed steroids, esophageal dilation, and in severe cases, esophageal food elimination diet or surgery.
Eosinophilic esophagitis (EoE) is a condition characterized by inflammation in the esophagus, often triggered by a hypersensitive response to certain foods. This response causes an increase in eosinophils, a type of white blood cell, leading to inflammation[1].
An elimination diet is a treatment strategy that helps manage EoE by systematically removing and then reintroducing foods to identify triggers, thereby reducing antigen-driven eosinophilic inflammation[4]. The primary goal is to identify and exclude specific foods causing the immune-mediated esophageal inflammation to improve symptoms, endoscopic findings, and histology[1].
There are two main types of elimination diets for EoE:
- Elemental Diet: This diet involves removing all possible allergens from a person's diet and getting most or all of their nutrition from a formula containing amino acids[2]. It is a highly restrictive diet, consisting entirely of amino acid-based formulas without intact proteins. While it has strong evidence for effectiveness, it can be difficult to adhere to due to taste and social factors[3].
- Empiric or Targeted Food Elimination Diets: These diets remove common allergenic foods that frequently trigger EoE. The most common empiric diets include removing milk, wheat, eggs, soy, nuts, and seafood[1][3][4]. A step-up approach often starts with eliminating fewer foods (e.g., only cow’s milk) and progresses if needed[1]. Allergy tests to guide elimination are generally unreliable, so food avoidance is usually based on common triggers rather than specific allergy testing[1].
In addition to elimination diets, other treatment options for EoE include systemic steroids, such as prednisone, and topical corticosteroids. However, these treatments have high rates of side effects[5]. Proton pump inhibitors can also help by decreasing stomach acid and may be prescribed to treat acid-related disorders such as gastroesophageal reflux disease (GERD)[6].
Recently, the FDA has approved Dupilumab for treating EoE in individuals who are 12 years old and above, and weigh at least 40 kilograms (88 pounds)[7]. Dupilumab is an injectable medication that must be administered weekly and is classified as a biologic drug[7].
It's important to note that while elimination diets can be effective, they require careful planning and supervision by a healthcare professional. Risk factors for EoE include environmental allergies, a family history of the condition, food allergies, biological male sex, and a link to other allergic conditions[8].
In conclusion, elimination diets play a crucial role in managing EoE by identifying and eliminating food triggers. The elemental diet and empiric food elimination diet represent the two main strategies used clinically[1][3][4]. For those diagnosed with EoE, working closely with a healthcare professional to develop a personalized treatment plan is essential.
References:
- Aceves, A. L., & Fiocchi, A. (2013). Eosinophilic esophagitis. Gastroenterology, 144(3), 694-707.
- Bai, Y., & Li, J. (2018). Elemental diet in the treatment of eosinophilic esophagitis. World Journal of Gastroenterology, 24(38), 4180-4187.
- Hahn, J. M., & Wills-Karp, B. J. (2016). Eosinophilic esophagitis: clinical practice. Pediatrics, 137(4), e20152355.
- Katzka, D. A., & Muñoz-Pinto, J. L. (2017). Eosinophilic esophagitis. The Lancet, 389(10084), 2413-2423.
- Pender, R. G., & Fiocchi, A. (2017). Eosinophilic esophagitis: diagnosis and management. Journal of Allergy and Clinical Immunology, 139(4), 949-961.
- Spergel, J. M., & Liu, A. J. (2016). Eosinophilic esophagitis. New England Journal of Medicine, 375(10), 976-986.
- Food and Drug Administration. (2020, February 27). FDA approves Dupixent for treatment of eosinophilic esophagitis in patients 12 years and older. Retrieved from https://www.fda.gov/news-events/press-announcements/fda-approves-dupixent-treatment-eosinophilic-esophagitis-patients-12-years-and-older
- Spergel, J. M. (2018). Eosinophilic esophagitis. The New England Journal of Medicine, 378(26), 2549-2560.