Utilization and impact of esophageal string testing in children with eosinophilic esophagitis: A 1 year experience

Abstract

AbstractThe 1‐h esophageal string test (EST) is a minimally invasive test that can be used to monitor eosinophilic esophagitis (EoE) disease activity and guide treatment without endoscopy. We aimed to describe the real‐world utilization and impact of EST on the care of children with EoE over the first year this was used at our center. Between 12/1/2022 and 11/30/2023, 39 ESTs were successful in 45 attempts (87% completion rate) in 31 patients. Five patients underwent multiple ESTs. Adverse events during the EST included vomiting. Reasons for failure to complete the EST (13%, n = 6) were patients could not swallow the capsule (n = 5) and vomiting (n = 1). EST was used to assess EoE without the need for endoscopy in 95% (n = 37) of cases. Treatment approach varied based on whether the EST indicated active (38.5%) or inactive (61.5%) EoE. The EST is a well‐tolerated minimally invasive disease monitoring tool for patients with EoE.