Endoluminal Functional Lumen Imaging Probe Is Safe in Children Under Five Years Old

ABSTRACT Background: Endoluminal functional lumen imaging probe (EndoFLIP) is a minimally invasive, novel device that uses high‐resolution impedance planimetry to measure important parameters of the gastrointestinal lumen that aid in the diagnosis of esophageal disorders. EndoFLiP is approved by the US Food and Drug Administration (FDA) for children 5 years and older. We sought to compare its safety and luminal characteristics between children under 5 years of age with children 5 years and older. Methods: A single‐center retrospective review was performed to identify all patients < 21 years of age who underwent esophagogastroduodenoscopy (EGD) with EndoFLIP between October 2017 and November 2020. Results: Sixty‐seven EGDs with EndoFLIP were performed in 56 patients, including 14 that were done in children < 5 years and 53 in children ≥5years. The median age in the < 5‐year group was 1.7years (interquartile range [IQR], 0.9–4.4) and the youngest patient was 1 month old. The median age in ≥5‐year group was 14.3 years (IQR, 8.2–16.2). Median procedure times were similar (32 minutes [IQR, 25–48] for the < 5‐year group; 28 minutes [IQR, 20–33] for ≥5‐year group; P = 0.08). There were no adverse events or unplanned hospitalizations in either group. At 30 mL inflation, the pressure of the lower esophageal sphincter (LES) was statistically different between the 2 groups ( P = 0.02). Conclusion: EndoFLIP appears to be safe for use in our small cohort of children < 5 years of age and may be an important tool in the management of esophageal disorders in this age group. There was no difference in procedure time between our 2 age groups and there were no procedure‐related complications.