The brachycephalic dog has a shorter snout which causes the airway to be shorter, that means all the parts that make up the airway get pushed closer together. This diagram illustrates what the airway structure looks like in a brachycephalic dog in this case, a Boxer.ġ. Nasal cavity 2. Oral cavity 3. Soft palate 4. Pharynx 5. Larynx 6. Trachea 7. Esophagus 8. Nasopharynx 9. Hard palate ĭogs experiencing a crisis situation due to brachycephalic syndrome typically benefit from oxygen, cool temperatures, sedatives, and in some cases more advanced medical intervention, including intubation.īAOS is also referred to as Brachycephalic Airway Syndrome (BAS), Brachycephalic Syndrome (BS), and in the UK as Brachycephalic Obstructive Airway Syndrome (BOAS). This leads to distress and further increases respiratory rate and heart rate, creating a vicious cycle that can quickly lead to a life-threatening situation.īrachycephalic dogs have a higher risk of dying during air travel and many commercial airlines refuse to transport them. Because all of these components make it more difficult to breathe in situations of exercise, stress, or heat, an animal with these abnormalities may be unable to take deep or fast enough breaths to blow off carbon dioxide. There are four different anatomical abnormalities that contribute to the disease, all of which occur more commonly in brachycephalic breeds: an elongated soft palate, stenotic nares, a hypoplastic trachea, and everted laryngeal saccules (a condition which occurs secondary to the other abnormalities). Brachycephalic airway obstructive syndrome (BAOS) is a pathological condition affecting short nosed dogs and cats which can lead to severe respiratory distress.
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