Signs of brachycephalic syndrome include inspiratory stridor (a very noisy wheezing sound), exercise intolerance, gagging or vomiting, coughing and reverse sneezing. (thedrakecenter.com)
Increased airway resistance from brachycephalic syndrome over a prolonged period can lead to progressive respiratory difficulty. (michigananimalhospital.com)
Because of their anatomy, dogs with brachycephalic syndrome have an increased resistance to airflow through their upper respiratory tracts — the mouth, nose and larynx. (michigananimalhospital.com)