Medically reviewed by Jay N. Yepuri, MD Acid reflux occurs when acid flows up from the stomach into the esophagus (food tube) ...

and has produced increased peristaltic and lower esophageal sphincter pressures in normal volunteers. Agrawal et al. evaluated the effect of bethanechol on smooth-muscle contraction in patients ...

When left untreated, GERD can lead to potentially serious complications, including: Between the esophagus (the food pipe) and the stomach lies a muscle called the lower esophageal sphincter which ...

In the present study, also signs were improved including lower esophageal sphincter (LES) pressure (from 10 ± 1.58 and, 10.3 ± 1.68 mmHg in the pretreated patients to 16.5 ± 0.6, and 14.1 ± 0. ...

Regurgitation is when the contents from your esophagus (the tube that brings food from your mouth to your stomach) or stomach come back up into your throat or mouth. Your lower esophageal ...