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MINERVA GASTROENTEROLOGICA E DIETOLOGICA

A Journal on Gastroenterology, Nutrition and Dietetics


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Minerva Gastroenterologica e Dietologica 2017 Mar 03

DOI: 10.23736/S1121-421X.17.02398-4

Copyright © 2017 EDIZIONI MINERVA MEDICA

language: English

Overlap of GERD and gastrointestinal functional disorders

Nicola De BORTOLI , Veronica NATALI, Sara MELISSARI, Natalia SIMONETTI, Gherardo TAPETE, Santino MARCHI

Gastroenterology Unit, Department of Translational Research and New Technologies in Medicine and Surgery, University of Pisa, Pisa, Italy


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The functional gastrointestinal disorders (FGIDs) are common conditions with an overall prevalence burden estimated at approximately one-third of the population. These represent a heterogeneous group of conditions which may include both abnormal symptom perception and functional causes and seems to share similar trigger factors as food, lifestyle and psychological factor. GERD develops when the reflux of gastric contents into the esophagus leads to troublesome symptoms, with or without mucosal involvement. Functional heartburn represents a subcategory of patients who refers with heartburn but without abnormal esophageal acid exposure, abnormal number of reflux events or any temporal correlation between symptoms and reflux events, on the same hands these patients do not report any symptom relief during antisecretory treatment with proton pump inhibitors. To date, several studies have reported a certain degree of overlap between GERD and FGIDs that it is only partially explained solely by chance. This review evaluated the overlap between GERD but especially functional heartburn and different FGIDs as: functional non-cardiac chest pain, irritable bowel syndrome, functional dyspepsia, gastric belching and supragastric belching and pharyngeal globus. A large number of mechanisms have been proposed to elucidate the connection between these numerous conditions. When pathophysiologic tests to subgroup GERD have been performed, functional heartburn seems overlap more frequently than GERD with FGIDs. From a therapeutic point of view visceral hypersensitivity, that characterize these functional disorders might be modulated by antidepressant therapy even if there are limited evidences. More studies and especially randomized controlled trials should consider these agents for future agenda researches.


KEY WORDS: Gastroesophageal reflux (GERD) - Irritable bowel syndrome (IBS) - Functional dyspepsia (FD)

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nicola.debortoli@unipi.it