General information on Oral-nasal Fistula
Oral-nasal fistula is condition in which food and water come back up out of the nose when the dog eats or drinks. Oral-nasal fistula can either be inherited or acquired. The most common cause of inherited oral-nasal fistula is cleft palate. Cleft palate is an incomplete fusion of the two sides of the palate that results in a passageway between the oral and nasal cavities. The most common cause of acquired oral-nasal fistula is when the canine teeth and the fourth premolars abscess and cause the tooth to rupture into the nasal cavity. The tooth falls out and the empty space acts as a passageway to the nasal cavity. Some other causes can be cancer, nasal trauma, or the extraction of a tooth. This condition is usually seen in small breeds of dogs.
Symptoms of Oral-nasal Fistula
The symptoms of oral-nasal fistula may be discharge, which are usually blood or pus, from the nose along with sneezing. These symptoms are usually most severe after eating. Other symptoms may be bad breath and anorexia.
Treatments for Oral-nasal Fistula
The treatment for oral-nasal fistula is surgery. In surgery, a piece of the mucous membrane is sutured across the passageway between the oral and nasal cavities. Antibiotics may also be required should there be an infections.
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