13 ESOPHAGEAL MOTILITY TESTING Occasionally endoscopy and barium esophagogram reports contain information about esophageal motility. Still, esophageal manometry is considered the gold standard in evaluating and quantifying esophageal motility. Esophageal manometry in patients with GERD is recommended to investigate the presence of esophageal motility abnormalities associated with GERD and to lo...

The location of the alaryngeal sound source sites were identified infour esophageal speakers by means of radiography and direct intraluminal manometry using miniature pressure transducers. These sound source sites were consistently found to be above the cricopharyngeal sphincter regions and not coincidental with them. The findings from this investigation do /lot support the generally held opini...