Abnormal Passageway Between the Mouth and Nasal Cavity in Dogs
Oronasal Fistula in Dogs
A fistula is characterized as an abnormal passageway between two openings, hollow organs, or cavities. They occur as a result of injury, infection, or disease. A communicating, vertical passageway between the mouth and nasal cavity is called an oronasal fistula. Dolichocephalic dog breeds are more likely to be affected with this condition, especially the Dachshund.
These types of fistulas are caused by the diseased condition of any tooth in the upper jaw. The most common location for an oronasal fistula is where the root of the fourth premolar on the upper jaw enters the palate. This condition will need to be surgically corrected to prevent food and water from passing from the mouth into the nasal cavity. If this should occur, it will cause irritation of the nose, runny nose, inflammation of the sinuses, infection, and possibly pneumonia.
These fistulas can affect both dogs and cats. If you would like to learn more about how this condition affects cats, please visit this page in the PetMD health library.
Symptoms and Types
Symptoms of an oronasal fistula include a chronically runny nose, with or without bleeding, and persistent sneezing.
You will need to give a thorough history of your dog's health, onset of symptoms, and possible incidents that might have precipitated/preceded this condition. Your veterinarian will perform a thorough physical and oral exam using a periodontal probe to investigate the suspected oronasal fistula.
A complete blood profile will be conducted, including a chemical blood profile, a complete blood count, a urinalysis, and an electrolyte panel. The blood-work should be performed before anesthetizing the dog for surgical correction of the fistula.
Surgical removal of the tooth, and closure of the passageway is the treatment of choice. A skin flap will be placed in both the mouth and in the nasal cavity during closure.
Living and Management
Since a flap to repair an oronasal fistula undergoes constant tension each time the dog breathes, oronasal fistulae tend to reopen. Additional surgeries with advanced tissue flaps can be performed if this occurs.
An in-depth examination of the properties of urine; used to determine the presence or absence of illness
The teeth found between the canine teeth and molars
Enlarged Gums in Dogs
Gingival hyperplasia refers to a medical conditon in which a dog's gum (gingival)...
Chronic Inflammation of the Anus, Rectum or ...
Perianal fistula is a disorder in which the anus, rectum, and perineal regions of...
Latest In Dog Nutrition
What Are Lean Proteins and How They Can Help ...
Protein is an important component in your pet's food, but not all proteins are the...
5 Tips to Keep Your Senior Pet Healthy
Senior pets have different health requirements than a younger dog or cat. Here are...