Cricopharyngeus Relaxation Time in Swallowing with Medelsohn Maneuver

J Korean Assoc EMG Electrodiagn Med 2001;3(1):27-30.
Published online May 10, 2001.

Abstract

Objective : Mendelsohn maneuver is a compensatory method to facilitate the upper esophageal sphincter opening. It is not clearly revealed whether Mendelsohn maneuver prolong the cricopharyngeus relaxation time or not. This study is designed to investigate the relationship of Mendelsohn maneuver and cricopharyngeus relaxation time. Method : 5 healthy subject perform 5 cc water swallowing with or without Mendelsohn maneuver under the electromyographic monitoring of cricopharyngeus and submental muscles. The cricopharyngeus relaxation time while swallowing was measured by the electromyographic recording. Result : The cricopharyngeus relaxation time of swallowing with Mendelsohn maneuver was not different from that of normal swallowing. Conclusion : The cricopharyngeus relaxation time is not prolonged in Mendelsohn maneuver swallowing.

Key Words: Mendelsohn maneuver, Cricopharyngeus relaxation time