Flanagan R, Muftah M, Hiramoto B, Cai JX, Chan WW. Impact of Body Composition on Esophagogastric Junction Opening Measures: Discordant FLIP and Manometric Findings Are More Common With Increased Body Mass Index. The American journal of gastroenterology. Published online 2024.
Abstract
INTRODUCTION: Increased intra-abdominal pressure in patients with elevated body mass index (BMI) may affect measurements of esophagogastric junction (EGJ) opening.
METHODS: Findings from adult patients who underwent both impedance planimetry with functional luminal imaging probe (FLIP) and high-resolution manometry (HRM) were compared by BMI.
RESULTS: Among patients with no EGJ outflow obstruction on HRM, abnormal EGJ classifications on FLIP were more common among those with elevated than normal BMI (61.1% vs 31.6%, P = 0.037).
DISCUSSION: Discordant results between FLIP and HRM on EGJ opening are more common in patients with elevated BMI. Body composition may impact EGJ function and measures on current testing modalities.