Additionally, research has explored the broader implications of botulinum toxin injections for upper esophageal sphincter (UES) dysfunction, which can significantly impact patients' quality of life.

Another study aimed to establish a methodology for diagnosing upper esophageal sphincter (UES) and pharyngeal motor disorders using HRM. The researchers compared 509 patients with controls and ...

retrograde cricopharyngeal dysfunction (R-CPD), also known as "no burp syndrome." The cricopharyngeus is the main muscle of the upper esophageal sphincter, the top gate of the food pipe.

ACCORDING to Templeton and Kredel, 1 "The ericopharyngeus muscle is a true sphincter which can be easily demonstrated at Roentgenologic examination. When the Valsalva test is performed ...

Heartburn, also known as acid indigestion, is a burning sensation in the chest caused by stomach acid backing up into the esophagus. This occurs when the lower esophageal sphincter (LES ...