MOTILITY DISORDERS
Gastroesophageal Reflux Disease
Gastroesophageal reflux (GER) is regurgitation of gastric contents back into the esophagus.GER is a normal physiologic phenomenon all adults and infants periodically experience reflux especially after meals.GER disease (GERD) is a more severe and chronic form. Reflux can be divided into two types: physiologic GER and pathologic GERD (Box 19-1)