Juice Test for Identification of Nonerosive Reflux Disease in Heartburn Patients

Journal of Neurogastroenterology and Motility
Michel R FernandesFernando Fornari

Abstract

Evaluation of esophageal clearance by orange juice swallowing could be useful to identify different categories of gastroesophageal reflux disease. We determined whether a juice test at the beginning of esophageal pH monitoring can identify nonerosive reflux disease (NERD) among heartburn patients. Multiple swallows of orange juice (pH 3) were performed at the beginning of esophageal pH monitoring in 71 heartburn patients off acid-suppressive therapy. The area between pH drop below 5 and recovery to 5 was calculated from pH tracings and named Delta5 (mmol∙L⁻¹∙sec). Fifteen healthy subjects served to determine Delta5 cutoff (95th percentile). Patients were classified as NERD, non-NERD (a mix of reflux hypersensitivity, functional heartburn, and undetermined), and erosive disease depending on acid exposure, reflux symptom analysis, and upper endoscopy. Delta5 cutoff in healthy subjects was 251 mmol·L⁻¹∙sec. Among 71 patients, 23 had NERD, 26 had non-NERD, and 22 had erosive disease. Compared to non-NERD, Delta5 was higher in both NERD (median [interquartile range]: 316 [213-472] vs 165 [105-225];P< 0.01) and erosive disease (310 [169-625] vs 165 [105-225];P< 0.01). An elevated Delta5 (> 251 mmol∙L⁻¹∙sec) showed sensitivity of 74% ...Continue Reading

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Citations

Mar 29, 2019·Journal of Clinical Gastroenterology·Roberto Penagini, C Prakash Gyawali
Feb 6, 2020·Gastroenterology·Ronnie FassC Prakash Gyawali

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