Impact of ingested liquids on 24-hour ambulatory pH tests

Digestive Diseases and Sciences
J P ShoenutC S Yaffe

Abstract

A prospective investigation of the impact of ingested liquids on 24-hr pH test scores was conducted. Eighty-two patients contributed 142 samples. The liquids used were coffee/tea (N = 35), water (N = 32), fruit juice (N = 29), cola (N = 34), and beer (N = 12). The pH of cola, juice, and beer are approximately 3.0. The parameters studied included: total test time, total drink time, total minutes of pH < 4.0 during drink, minutes of < pH 4.0 10 min before drink, and minutes of pH < 4.0 10 min following drink. Analysis was performed using one-way ANOVA and repeated measures. Age of patients, total test time, and total time pH < 4.0 were not significantly different (P > 0.05). The total time to consume the drink was significantly greater (P < 0.05) for beer than all other liquids. The total time (7.7 +/- 6.0 min) pH < 4.0 for cola was significantly different (P < 0.023) than beer (3.3 +/- 3.7 min), tea/coffee (1.4 +/- 6.5 min), and water (1.1 +/- 2.5 min). The percentage of total time pH < 4.0 was not significantly different (P > 0.05) among any of the liquids. The percentage of time pH < 4.0 during the drink was the highest for cola (63 +/- 47%) and juice (51 +/- 57%); water, coffee/tea, and beer were not significantly different (...Continue Reading

Citations

Feb 25, 2003·The Annals of Otology, Rhinology, and Laryngology·Conrad F SmitAstrid Semin
Jan 13, 2000·Diseases of the Esophagus : Official Journal of the International Society for Diseases of the Esophagus·S J WalkerN Birbeck
Apr 1, 2008·Neurogastroenterology and Motility : the Official Journal of the European Gastrointestinal Motility Society·R CuomoM Buyckx
Dec 21, 2000·Clinical Otolaryngology and Allied Sciences·C F SmitD Kupperman
Aug 17, 2006·Journal of the National Cancer Institute·Jesper LagergrenCatarina Jansson
Jan 9, 2010·Alimentary Pharmacology & Therapeutics·T JohnsonR Fass
Sep 28, 2005·Digestive Diseases and Sciences·Amit AgrawalDonald O Castell

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