During pharyngeal High Resolution Manometry (pHRM) a small bore flexible catheter is introduced into the pharynx to detect intrabolus pressure and contact of pharyngeal structures during swallowing. The presence of the catheter through the upper esophageal sphincter (UES) leads to a violation of its natural closed state. It is not clear how this intrusion influences the swallowing biomechanics . Hence, this project's goal is to identify how hyoid movement is altered during swallowing with the presence of a pHRM catheter in place.
This study is designed to determine the impact of a pharyngeal High Resolution Manometry catheter on swallowing biomechanics