| This
is a condition that I have not witnessed first hand, Thank God. I have
created this page for those looking for more information. Tracheal
collapse is most common in very small breeds, and it's not known if it's
hereditary or a byproduct of small size. However, it would seem prudent
not to breed a dog with tracheal collapse and to disclose any affected
relatives of any dog considered for breeding. The trachea, or windpipe, is
a flexible tube made of a series of cartilage rings. In some dogs the cartilage
isn't as rigid as it should be. Many dogs with abnormal cartilage can live years, perhaps their entire lives, without the
condition progressing to tracheal collapse. Obesity, inhalation of
irritants or allergens, respiratory infection, enlarged heart and
endotracheal intubation may precipitate the actual collapse. When the
rings collapse, the trachea flattens, obstructing the airway. If the
collapse is in the chest region, problems are more likely when the dog
breathes out or coughs. Coughing further irritates and weakens the
trachea, worsening the condition.
Coughing is the major symptom. The cough, a harsh "goose honk" type of sound, occurs mostly during the day and is associated with excitement, pressure to the throat, or eating and drinking. In severe cases, the dog may show symptoms of lack of oxygen, including fainting and a bluish tinge to the gums. Radiographs and ultrasound can be used for an initial diagnosis. Treatment is usually aimed at controlling symptoms. Weight reduction of obese dogs can be rewarding. Use a harness instead of a collar to lessen pressure on the dog's throat. Humidifying the air, especially in dry climates, is beneficial. The environment should be free of inhaled irritants, especially cigarette smoke. Affected dogs should not be stressed, or vigorously exercised because panting can cause breathing difficulties. They must be kept free of respiratory diseases. Cough suppressants should be used to reduce irritation to the trachea. The use of bronchodilators is somewhat controversial and is more likely in extreme cases. Glucosamine and Vitamin C supplementation may help strengthen cartilage, although their efficacy has not been demonstrated. In severe cases, surgery to support the trachea using prosthetic supports may be the best option, but it is not always successful. It may be more rewarding in younger dogs and those cases involving the trachea in the neck region. Researchers are still working to develop better procedures, so if you are contemplating surgery, you need to consult with a veterinary surgeon who is abreast of the latest developments in this field, and who has experience with these surgeries. This is an excerpt from the Yorkshire Terrier Handbook written by D. Caroline Coile, Ph.D.. This book can be acquired at your local Borders Book store. This book contains an abundance of knowledge on the breed and many tips on raising your new puppy. |