Search results
Results from the WOW.Com Content Network
EndoStim therapy directly targets the weak lower esophageal sphincter (LES) muscle, without altering anatomy or using mechanical constraints. EndoStim's proprietary technology uses functional electrical stimulation (a type of neuromodulation) to restore esophageal function, thereby reducing GERD symptoms.
Endocinch puts stitches in the lower esophogeal sphincter (LES) to create small pleats to help strengthen the muscle. However, long-term results were disappointing, and the device is no longer sold by Bard. [84] The Stretta procedure uses electrodes to apply radio-frequency energy to the LES.
The upper esophageal sphincter surrounds the upper part of the esophagus. It consists of skeletal muscle but is not under voluntary control. Opening of the upper esophageal sphincter is triggered by the swallowing reflex. The primary muscle of the upper esophageal sphincter is the cricopharyngeal part of the inferior pharyngeal constrictor. [9]
For reflux esophagitis, a fundooplication can be done to help strengthen the lower esophageal sphincter from allowing backflow of the stomach into the esophagus. For esophageal stricture, a gastroenterologist can perform a dilation of the esophagus. As of 2020 evidence for magnetic sphincter augmentation is poor. [11]
Nutcracker esophagus is characterized by high-amplitude peristaltic contractions that are frequently prolonged and cause dysphagia and chest pain. [6] HLES (hypertensive lower esophageal sphincter) is a rare manometric abnormality seen among individuals with dysphagia, chest pain, gastroesophageal reflux, and hiatal hernia. [7]
The angle of His forms an anatomical sphincter. This prevents the reflux of stomach acid, digestive enzymes, and duodenal bile from entering the esophagus. [4] [5] This is important in preventing gastroesophageal reflux disease and inflammation of the esophagus. [5]
The orbicularis oculi muscle, a muscle around the eye. The upper oesophageal sphincters; The lower esophageal sphincter, or cardiac sphincter, at the upper portion of the stomach. This sphincter prevents the acidic contents of the stomach from moving upward into the esophagus. The pyloric sphincter, at the lower end of the stomach.
The inferior fibers are horizontal and continuous with the circular fibers of the esophagus; the rest ascend, increasing in obliquity, and overlap the middle pharyngeal constrictor muscle. The cricopharyngeal part is synonymous with the upper esophageal sphincter (UES), which controls the opening of the cervical esophagus. [4]