Tracheal Collapse, Canine - contd.
Some dogs with tracheal collapse will have an intermittent, dry "goose honk" cough. Dyspnea, or difficulty breathing, will be noted in most animals with this disease. Retching or gagging can occur in dogs that are trying to clear secretions from their throat. Clinical signs typically worsen when the animal is excited, drinks water quickly, or becomes overheated. In severe cases, the animal may appear cyanotic, having a bluish tinge to the mucous membranes. Some dogs will faint, or experience syncope, due to a lack of oxygen supply to the brain, which occurs when the dog is overexerted or anxious.
