Mega E(ME or Mega Esophagus) is a defect of the esophagus. Some dogs are born this way and others develop it. The esophagus is enlarged like and empty rubber hot water bottle(remember those things?) and lacks the muscular movement that would push food into the stomach. Allowed to eat or drink like a normal dog, a Mega E dog's esophagus would hold anything consumed and likely regurgitate it without it ever reaching thew stomach. Mega E dogs need to be fed upright in a chair(or similar) so that gravity can help the food pass to the stomach. Most Mega E dogs are high risk for aspiration. MINI was surrendered to our foundation with Mega E and cannot be placed so she will remain with us.
Some Mega E dogs live long lives and some do not. It's all relative to accurate and early diagnosis and then diligent, strict control of eating and drinking.