Phuc N. Le * , Thong Q. Le , & Moses Philip

* Correspondence: Le Ngoc Phuc (email:

Main Article Content


This report aimed to study symptoms and causes of brachycephalic obstructive airway syndrome (BOAS) in brachycephalic dogs and to determine appropriate surgical procedures for these symptoms by reviewing literatures and examining four case studies conducted at Veterinary Specialist Service Hospital, Underwood, Queensland, Australia. The cases included a 6-year 3-month old Staffordshire Bull Terrier (case 1), a 1-year 5-month old French Bulldog (case 2), an 8-month old French Bulldog (case 3), and an 8-year 8-month Pug (case 4). Those dogs went to the Veterinary Specialist Service in a worsen state of respiratory problems, including the upper respiratory noise (case 1, 2, 3), decrease in exercise tolerance, respiratory struggling (case 1, 3), regurgitation (case 1), coughing, sleeping difficulty, respiratory stridor (case 2), nasal discharge, dyspnea, bloating, and tachypnea (case 4). Examinations revealed the causes including the elongated soft palate (case 1, 2, 3, 4), stenotic nostrils (case 2, 3, 4), tonsils inflammation (case 3) and everted laryngeal saccules (case 4). After surgery, the dogs were recovered in intensive care unit within 2 days, and then discharged. Scheduled re-examination one week later showed improvement in the respiratory health in all cases. Overall, major complications occur in 10\% of cases; however, this surgery is vital and can be totally applied in Vietnam where brachycephalic dogs have become a popular companion.

Keywords: Brachycephalic syndrome, BOAS, Brachycephalic dogs

Article Details


Ackerman, L. J. (1999). The genetic connection: a guide to health problems in purebred dogs (1st ed.). Colorado, USA: American Animal Hospital Association.

Best, S., Duffin, C., & Ward, A. (2016). Think twice before getting bulldogs or pugs: Demand for ’flat-faced’ canines could damage their health, warn vets. Retrieved May 22, 2020, from

Bjorling, D., McAnulty, J., & Swainson, S. (2000). Surgically treatable upper respiratory disorders. Veterinary Clinics: Small Animal Practice 30(6), 1227-1251.

Dupre, G. (2008). Brachycephalic syndrome: New knowledge, new treatments. Retrieved January 2, 2020, from

Fossum, T. W. (2013). Small animal surgery (4th ed.). Missouri, USA: Elsevier.

Holt, D., & Brockman, D. (1994). Diagnosis and management of laryngeal disease in the dog and cat. The Veterinary clinics of North America: Small animal practice 24(5), 855-871.

Koch, D. A., Arnold, S., Hubler, M., & Montavon, P. M. (2003). Brachycephalic syndrome in dogs. Compendium on Continuing Education for The Practising Veterinarian-North American Edition 25(1), 48-55.

O’Dwyner, L. (2017). Anaesthesia for the brachy- cephalic patient. Retrieved April 28, 2020, from

Packer, R. M. A., Hendricks, A., & Burn, C. C. (2012). Do dog owners perceive the clinical signs related to conformational inherited disorders as ’normal’ for the breed? A potential constraint to improving canine welfare. Animal Welfare-The UFAW Journal 21(1), 81.

Ward, E., & Hunter, T. (2009). Tonsillitis in dogs. Retrieved July 12, 2009, from