(GERD) û the movement of gastric contents proximally into the esophagus, often described as 'heartburn' or a sensation of burning in the epigastric (upper abdomen) or retrosternal (chest) area, that often occurs post-prandially (after a meal), and may be associated with regurgitation (not vomiting, rather a small amount of liquid contents is expelled up from the stomach into the mouth) or acid taste. The gastroesophageal junction normally relaxes on occasion for 'venting' but this may occur more frequently or for longer periods of time. Risk factors including overweight or obesity, hiatus hernia, some skin conditions, pregnancy and age.
Endoscopy evaluation of the upper gastrointestinal tract, including the esophagus (swallowing tube), stomach, and first part of the small bowel, up to and including the second or third portion of the duodenum. No bowel preparation is required, just fasting for 2 to 4 hours prior to the procedure.