A hiatus hernia causes
stomach acid to escape back up the esophagus, and over time this causes
damage, which results in a change in the lining of the esophagus, and this is known as Barrett's Esophagus.
Barratt's Esophagus, as you know, is a potentially serious condition that must
be treated accordingly. I believe PPIs are usually given for this too, along with other medications.
Has H-pylori bacteria in the stomach been ruled out by the endoscopy?