Fig. 2. High-resolution manometry demonstrating 3 esophagogastric junction (EGJ) subtypes which represent physiological situation (EGJ type 1), small hiatal hernia (EGJ type 2), and larger hiatal hernia (EGJ type 3a and 3b). In hiatal hernia (EGJ type 2 and 3), there are 2 clearly separated high pressure zone at the level of cardia with the proximal representing the lower esophageal sphincter (LES) and the distal representing the crural diaphragm (CD).
© J Neurogastroenterol Motil
