Your Chihuahua's Health

[Hypoglycemia] [Hyprocephalus And The Molera] [Luxation of the Patella] [Tracheal Collapse] [Reverse Sneezing] [Anal Sacs]

Tracheal Collapse

The trachea is the airway tube which connects the larynx to the main-stem bronchi in the lungs. The trachea consists of "C" shaped cartilage rings and flexible tissue, covered by a specialized lining. This lining has cells with tiny hair-like projections (cillia). The primary function of the cillia is the removal of mucus, inhaled particles and inhaled bacteria. Between the movement of the cillia gathering debris and the cough reflex, the trachea serves as a filter screening this debris from reaching the lungs.

Tracheal collapse is when the rigid structure of the trachea becomes weakened. This weakened area collapses due to external and/or internal pressure created during activity, thus interfering with normal respiration. The weakened area becomes irritated. Since coughing and respiratory exertion can cause further irritation, clinical signs will worsen and the condition can become self perpetuating. Tracheal collapse may occur alone or in association with another airway disorder (most often chronic bronchitis).

A chronic "honking" cough (not to be confused with the "reversed sneeze") can be an indication of this condition. In some cases the cough can become so severe that the animal behaves as though there is something caught in its throat. Other indications of this disorder include breathing difficulty, tiring easily and exercise intolerance.

Mild cases often respond well to cough suppressants, keeping the dog at its ideal weight and stress reduction. These dogs can live long and healthy lives. In more advanced cases surgical correction may be necessary, though not with guaranteed results. In cases of combination airway disorders, treatment of the contributing disorders may be necessary before treating the tracheal collapse.

The best way to prevent a collapsed trachea is to ALWAYS put a harness on your small dog and never put pressure on their neck and throat by pulling with a collar.

For more information, concerns and questions contact your veterinarian.