Postprandial stomach contents have multiple acid layers.


GOALS The purpose of this study was to evaluate patterns in gastric pH both fasting and postprandially in different body positions. STUDY Ten healthy volunteers were studied. A pH probe was positioned with an electrode 15 cm below the lower esophageal sphincter proximal border then withdrawn 1 cm every 30 seconds to 5 cm above the lower esophageal… (More)


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