Megaesophagus

What is Megaesophagus?

Mega-esophagus is a disorder in which there is a lack or absence of muscle contractions (or movement) within the esophagus. Basically, the esophagus is the tube located in the throat that allows food and water to pass to the stomach. Hence, this disorder makes it difficult for the dog swallow in order to consume food and water.


Symptoms

This disorder typically causes the dog to vomit or regurgitate food and water. The animal may also be subject to aspiration pneumonia. Other symptoms include:

  • Weight loss
  • Fever
  • Cough
  • Bad breath
  • Nasal discharge
  • Salivation


Causes

In certain breeds such as the Miniature Schnauzer and Wire Fox Terrier, this disorder is inherited or passed on from the parents. Other causes of this disease can be primary or secondary. Typically, when this condition is deemed a “primary” disorder the cause is uncertain. When it is considered a “secondary” condition, the cause is then linked to a separate disease or from trauma to the esophagus.


Treatment and Prevention

Treatment for this disorder depends on the type of condition:

  • primary
  • secondary
If the condition is “primary”, then certain medication and antibiotics can be given in order to increase movement within the esophagus or to treat aspiration pneumonia if it occurs. If mega-esphagus is "secondary", then it is treated differently. In this case, the underlying condition (the disease causing mega-esphagus to occur) is treated. The best prevention method for this disorder is not to breed carriers of the disease. Otherwise, mega-esphagus is seemingly unpreventable. It is best to consult with your vet regarding further information of this condition.




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