Table 2

Changes in pressure, length, and position of the gastro-oesophageal junction (GOJ) high pressure zone (HPZ) caused by abdominal compression

  • Changes in patients with hiatus hernia were measured both within the proximal high pressure zone (HPZ 1) and the hiatal canal (HPZ 2). All values are mean (SEM).

  • 3-150 p<0.05 versus normal.