He was the first to describe that the deglutitive upper esophageal sphincter opening can be increased by strengthening exercises of the suprahyoid muscles. This led to development of ...

The upper esophageal sphincter may also become weakened ... and having primary esophageal dysmotility (which is when the muscles in the esophagus don't work well). Research on stress as it ...

GERD is when the muscles of the lower esophageal sphincter ... both the lower and the upper esophageal sphincter must be ...

The esophageal sphincter is the muscle that separates your stomach from your esophagus so that food and stomach acid doesn't back up from the stomach into the back of your throat. However ...

While you are under anesthesia, the surgeon will make a small incision in the sphincter muscle between the esophagus and the stomach to widen the opening and allow food and liquids to pass from the ...

and the upper esophageal sphincter. Ivan obtained his DVM degree from the University of Wisconsin Veterinary Medical School in 1996. Today, Ivan's main research interest is the central control of ...