Gastroesophageal reflux. Definition

Medical Definition: Gastroesophageal reflux

Existence of the passage of gastric contents (acid or bile) in the direction opposite to peristalsis down the esophagus, with a higher frequency and duration of reflux is considered physiological. The fundamental cause is the lower esophageal sphincter hypotonia, which is facilitated by hiatal hernias and obesity. The consequence is the presence of symptoms such as heartburn and retrosternal burning, epigastric pain, regurgitation and vomiting. If reflux esophagitis is severe can result in any degree. The initial treatment is medical with thinning in obese and dietary measures, postural and antacids. Where there is no improvement or there are serious complications of esophagitis (hemorrhage, Barrett's esophagus, esophageal ulcers or peptic strictures) antireflux surgery is indicated and can be used multiple techniques, the most known and used is the Nissen fundoplication. See lower esophageal sphincter, reflux esophagitis, Barrett's esophagus, Nissen fundoplication, hiatal hernia.

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