skip to primary navigationskip to content

Nai-Chieh Liu DVM MPhil PhD

Nai-Chieh Liu, DVM MPhil PhD

Clinical Research Associate

Brachycephalic Obstructive Airway Syndrome (BOAS) Research


Nai-Chieh obtained her veterinary degree (DVM) at National Taiwan University and then working as a junior training surgeon at WellcareVet Specialist Hospital in Taipei. She joined the BOAS team in Oct 2011 as an MPhil+PhD student working on developing a non-invasive screening test for BOAS using whole-body barometric plethymgraphy and evaluating outcomes of different surgical procedures for BOAS. Nai-Chieh has obtained her PhD degree in 2017 and currently working as a clinical research associate. 

Research Interests

  • Pathophysiology of Brachycephalic Obstructive Airway Syndrome (BOAS)
  • ENT surgery
  • Respiratory physiology in dogs  


  • Non-invasive respiratory function test
  • Whole body barometic plethysmography
  • Brachycephalic dogs
  • Upper airway tract corrective surgery


Key Publications

Liu N-C, Oechtering GU, Adams VJ, Kalmar L, Sargan DR, Ladlow JF (2017).Outcomes and prognostic factors of surgical treatments for brachycephalic obstructive airway syndrome in 3 breeds. Vet Surg. 2017 Feb;46(2):271-280. doi: 10.1111/vsu.12608.

Liu N-C, Adams VJ, Kalmar L, Ladlow JF, and Sargan DR (2016) Whole-Body Barometric Plethysmography Characterizes Upper Airway Obstruction in 3 Brachycephalic Breeds of Dogs. Journal of Veterinary Internal Medicine, 30: 853–865. doi: 10.1111/jvim.13933

Liu N-C, Sargan DR, Adams VJ, Ladlow JF (2015) Characterisation of Brachycephalic Obstructive Airway Syndrome in French Bulldogs Using Whole-Body Barometric Plethysmography. PLoS ONE 10(6): e0130741. doi:10.1371/journal.pone.0130741