A perspective on brachycephalic surgeryJune 27, 2022Brachycephalic obstructive airway syndrome (BOAS) is a complex combination of anatomic anomalies leading to restricted air movement in brachycephalic breeds. This syndrome generally includes varying degrees of stenotic nares, everted laryngeal saccules, redundant laryngeal tissue, presence of abnormal concha, elongated soft palate, and tracheal hypoplasia.