879 The Esophageal String Test (EST) Quantifies Luminal Eosinophil and Chemokine Biomarkers Reflective of Esophageal Inflammation in Adults With Eosinophilic Esophagitis (EoE)

Abstract

DI-metrics derived from FLIP data acquisition of simultaneous cross-sectional area and distention pressure. The line plot of the smallest CSA versus intrabag pressure for an EoE patient is illustrated to highlight the metrics of distensibility: distensibility slope (DS), distensibility plateau (DP) and plateau onset pressure (POP). Note the insets of the realtime FLIP data approximating the POP at approximately 22 mmHg and the distensibility along the DP at 58 mmHg. There is little overall change in the smallest esophageal CSA along the length of the esophageal body despite a change in pressure once the plateau is reached.