Epidemiology and Pathophysiology of GERD

Gerd (Gastroesophageal Reflux Disease) is a chronic condition in which the stomach acid and other digestive juices flow back up into the esophagus. This regurgitation can cause a variety of symptoms, including heartburn, vomiting, and difficulty swallowing. The pathophysiology of GERD is complex, and involves multiple factors including gastroesophageal sphincter dysfunction, lower esophageal sphincter (LES) incompetence, impaired gastric motility, and impaired mucosal defense. Epidemiologically, GERD is one of the most common gastrointestinal disorders, with prevalence estimates ranging from 10-20%, depending on the population studied. Risk factors for GERD include male sex, older age, obesity, and a sedentary lifestyle. It can also be triggered by certain foods, such as coffee, alcohol, chocolate, and acidic foods, as well as certain medications, such as aspirin, ibuprofen, and other nonsteroidal anti-inflammatory drugs (NSAIDs). The pathophysiology of GERD is complex and involves multiple mechanisms.