Although manometry is the most accurate method for diagnosing esophageal motility disorders, several patient suffering of high dysphagia remain undiagnosed. Most Authors concentrate their efforts in studying the coordination between the pharynx and the upper esophageal sphincter (UES), while the co-ordination of the UES with the upper esophageal contraction is less studied. A new method for reading a manometric trace of the UES has been developed, and the crico-esophageal coordination herein is described.