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Allan Williamson, Anesthesia


Dr. Allan Williamson earned his DVM degree from Ontario Veterinary College, following which he stayed on an additional year as a small animal intern. He then completed a combined Master’s of Science and residency program in anaesthesia and analgesia at the Virginia-Maryland College of Veterinary Medicine in Virginia. After spending a year as a clinical instructor at University of Wisconsin-Madison, he returned to Ontario to join the Anaesthesia team at the 404 VERH. He has a special interest in anaesthetic equipment and locoregional anaesthesia.

When not at work he enjoys fencing, cycling and spoiling his cat Sasha rotten.

BSc (Hons), McMaster University, Hamilton, ON – (2009)
DVM, Ontario Veterinary College, Guelph, ON – (2013)
MS, Virginia Tech, Blacksburg, VA, USA – (2018)

Advanced Clinical Training
Small Animal Rotating Internship, Ontario Veterinary College, Guelph, ON – (2013-2014)
Residency in Anesthesia and Pain Management, Virginia-Maryland College of Veterinary Medicine – (2014-2018)

Areas of Special Interest
Dr. Williamson has a special interest in anaesthetic equipment and locoregional anaesthesia.

Textbook Chapter: Oxygen Concentrators. Veterinary Anesthetic and Monitoring Equipment. Oct 2018
Williamson AJ, Soares JHN, Pavlisko ND, McAlister Council-Troche R, Henao-Guerrero N. Isoflurane minimum alveolar concentration sparing effects of fentanyl in the dog. Vet Anaesth Analg. 2017 Jul;44(4):738-745
Williamson AJ, Soares JH, Henao-Guerrero N, Council-Troche RM, Pavlisko ND. Cardiovascular and respiratory effects of two doses of fentanyl in the presence or absence of bradycardia in isoflurane-anesthetized dogs. Vet Anaesth Analg. 2018 Jul;45(4):423-431.
Soares JH, Henao-Guerrero N, Pavlisko ND, Williamson A, Giannella-Neto A. The effect of two doses of fentanyl on chest wall rigidity at equipotent doses of isoflurane in dogs. Vet Anaesth Analg. 2019 May;46(3):360-364. doi:10.1016/j.vaa.2019.01.001. Epub 2019 Jan 21. PubMed PMID: 30772260.
Pavlisko ND, Soares JHN, Henao-Guerrero NP, Williamson AJ. Ultrasound-guided catheterization of the femoral artery in a canine model of acute hemorrhagic shock. J Vet Emerg Crit Care (San Antonio). 2018 Nov;28(6):579-584.
Dr Williamon

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