
Johannes von Vopelius-Feldt
MD MSc PhD DipIMC
Biography
Dr. Vopelius-Feldt is an emergency physician and trauma team leader at St. Michael’s Hospital and a transport medicine physician for Ornge. He is an assistant professor in the Department of Medicine at the University of Toronto and Scientist at the Li Ka Shing Knowledge Institute, Unity Health Toronto.
Dr. Vopelius-Feldt’s education spans Scotland, Germany and most recently England. He completed a PhD funded by the National Institute for Health Research (NIHR UK, over $300,000) on the topic of prehospital critical care for cardiac arrest. He is first author on over 10 publications relating to various aspects of prehospital critical care and completed a fellowship in prehospital critical care at the University of Toronto.
Expertise
Prehospital; Critical Care Systems; Trauma; Cardiac Arrest
Contact Information
@JVopelius
Graduate Students
Rachel Stephenson, PhD Student, Engineering, University of Toronto: Geospatial Mapping of Major Trauma in an Urban Centre
Supervision
Dr. Vopelius is currently accepting trainees and supervises a range of trainees, from undergraduate to postgraduate.
Publications
Development of a national out-of-hospital transfusion protocol: a modified RAND Delphi study. von Vopelius-Feldt J, Lockwood J, Mal S, Beckett A, Callum J, Greene A, Grushka J, Khandelwal A, Lin Y, Nahirniak S, Pavenski K, Peddle M, Prokopchuk-Gauk O, Regehr J, Schmid J, Shih AW, Smith JA, Trojanowski J, Vu E, Ziesmann M, Nolan B. CMAJ Open. 2023 Jun 27;11(3):E546-E559.
The effect of prehospital critical care on survival following out-of-hospital cardiac arrest: A prospective observational study. von Vopelius-Feldt J, Morris RW, Benger J.Resuscitation. 2020 Jan 1;146:178-187.
Critical care paramedics: where is the evidence? A systematic review. von Vopelius-Feldt J, Wood J, Benger J.Emerg Med J. 2014 Dec;31(12):1016-24.
To view more of Dr. Vopelius-Feldt’s publications, visit ORCiD or ResearchGate.

Current Projects
Assessment of efficacy of pre-hospital critical care for major trauma: A systematic review
Improving prehospital care for major trauma-geospatial analysis of major trauma to assess the feasibility of a prehospital critical care team response.
Prehospital trauma deaths in an urban and suburban setting: epidemiology and potential for advanced prehospital interventions
Exploration of extra-corporal life support for out-of-hospital cardiac arrest: geospatial analysis of prehospital vs in-hospital ECPR strategies
Analysis of secondary trauma transfers within an urban trauma network
A Needs Assessment for Pre-Alert Notification in Trauma