Can permanent damage to oesophagus be caused by anaesthesia while undergoing surgery for pituitary using eea . think i may have acidity since then.

Esophagus trauma: There are several adverse effects associated with general anesthesia, however, your acidity sounds like it's an independent problem. Have you had a fluctuation in weight after your pituitary surgery. This is common and is a more likely source of your acidity. Try not to recline or lay down for at least 2hrs after eating or drinking. Avoid spicy, caffeine, citrus, tomato.