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Mechanism and Pathophysiology of Gastroesophageal Reflux Disease

Robin Zachariah, T. Goo, R. Lee

Gastrointestinal Endoscopy Clinics of North America, 2020

29 citations

Abstract

Gastroesophageal reflux (GER) describes a process in which gastric contents travel retrograde into the esophagus. GER can be either a physiologic phenomenon that occurs in asymptomatic individuals or can potentially cause symptoms. When the latter occurs, this represents GER disease (GERD). The process by which GER transforms into GERD begins at the esophagogastric junction. Impaired clearance of the refluxate also contributes to GERD. Reflux causes degradation of esophageal mucosal defense. The refluxate triggers sensory afferents leading to symptom generation.

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