NCIt definition : A chronic disorder characterized by reflux of the gastric and/or duodenal contents
into the distal esophagus. It is usually caused by incompetence of the lower esophageal
sphincter. Symptoms include heartburn and acid indigestion. It may cause injury to
the esophageal mucosa.;
Alternative definition : NICHD: Reflux of stomach contents with symptoms and/or complications from the reflux
act.; CTCAE: A disorder characterized by reflux of the gastric and/or duodenal contents
into the distal esophagus. It is chronic in nature and usually caused by incompetence
of the lower esophageal sphincter, and may result in injury to the esophageal mucosal.
Symptoms include heartburn and acid indigestion.;