Normal esophageal pressure topography metrics for data derived from the Sandhill‐Unisensor high‐resolution manometry assembly in supine and sitting positions

Background Normal values of the esophageal motor function parameters for high‐resolution manometry ( HRM ‐ EPT ) adopted by the Chicago classification were established using the proprietary system of Given Imaging. It is conceivable that normal values of a system do not apply to data from others. Most studies using HRM were based on supine swallows, whereas deglutition occurs mostly in the upright position. We wished to establish normal values...