Collapsing Trachea

Collapsing trachea is a common condition in small and toy breed dogs, such as Yorkshire Terriers, Poodles, and Pomeranians. The trachea, or windpipe, is supported by C-shaped cartilage rings that keep it open. In affected dogs, these rings weaken and lose their rigidity, causing the trachea to flatten, particularly during inhalation or exhalation. This collapse obstructs the airflow, leading to a characteristic honking cough, especially when excited, pulling on a leash, drinking water, or exercising. Obesity and environmental irritants like smoke can worsen the condition. Diagnosis is typically made based on clinical signs, palpation of the trachea, and often confirmed with X-rays taken during different phases of respiration, or sometimes with fluoroscopy (a moving X-ray). Treatment focuses on managing symptoms with cough suppressants, bronchodilators, and anti-inflammatory medications. Weight management and avoiding irritants are crucial. In severe cases, surgical correction with tracheal stents may be considered.