Causes
The anatomy of brachycephalic breeds: narrow nostrils, an elongated soft palate, a narrow windpipe. Affected breeds: English and French Bulldog, Pug, Boxer, Pekingese, Shih Tzu, and the Persian cat.
Diagnosis
Physical examination plus assessment of the airways, sometimes under sedation.
Treatment
Mild cases: weight control, avoiding heat and strenuous exercise, using a harness. Moderate to severe cases: corrective surgery (widening the nostrils, shortening the palate) that greatly improves quality of life.
Prevention
Choose breeders who prioritise respiratory health, keep strict control of weight, avoid heat, and use a harness.

