Eosinophilic esophagitis in children

Eosinophilic esophagitis (EoE) is a relatively common chronic immune-mediated disease of the esophagus characterized clinically by symptoms of esophageal dysfunction that vary by age. Histologically, EoE results in marked esophageal eosinophilia despite treatment with high-dose proton pump inhibition. The cornerstone of treatment is dietary restriction and/or pharmacologic therapy, mainly with topical steroids. This review briefly describes dietary therapy, but focuses on the various medical options in the treatment of EoE, with an emphasis on steroid-based therapy. Numerous landmark studies are reviewed describing the symptomatic and histologic endpoints as well as safety data. The literature strongly supports the use of topical steroid therapy as a means of significantly decreasing eosinophilic mucosal disease. Specifically, high-dose fluticasone propionate appears to be very effective, and has been shown to result in the resolution of mucosal eosinophilia in a large percentage of treated patients. Long-term studies over many years will need to determine whether mucosal healing will change the natural history of this stricture-causing disease. In addition to topical therapy, various other drug-based therapies are reported, including newer immune-based monoclonal antibodies.