Johannes Von Vopelius-Feldt, University of Toronto

Research

Read how they describe their research on their University of Toronto profile.

Latest papers

Paramedics' Decisions to Withhold Resuscitation in Traumatic Cardiac Arrest: Accuracy of Paramedic Assessments Compared with Autopsy Findings.
Prehospital emergency care · 2026 · senior author
Prehospital whole blood transfusion in hemorrhagic shock: A systematic review.
Transfusion · 2026
Hemothorax and needle thoracostomies in prehospital traumatic cardiac arrest: An autopsy series of 172 cases.
Resuscitation plus · 2025 · first author

All 8 publications

8 publications.

01

Paramedics' Decisions to Withhold Resuscitation in Traumatic Cardiac Arrest: Accuracy of Paramedic Assessments Compared with Autopsy Findings.

Koyya R, O'Brien C, Drennan IR, Cheskes S, von Vopelius-Feldt J

Prehospital emergency care2026Senior author

DOI: 10.1080/10903127.2026.2655289 PMID: 41950410

02

Prehospital whole blood transfusion in hemorrhagic shock: A systematic review.

Dion PM, Greene A, Aves T, Pan A, Drennan I, von Vopelius-Feldt J, Beckett A, Shorr R, Nolan B

Transfusion2026Open Access

DOI: 10.1111/trf.70146 PMID: 41793116

03

Hemothorax and needle thoracostomies in prehospital traumatic cardiac arrest: An autopsy series of 172 cases.

von Vopelius-Feldt J, Persaud A, Jones S, Drennan I, Cheskes S, FIRST60 Investigators

Resuscitation plus20252 citationsFirst authorOpen Access

DOI: 10.1016/j.resplu.2025.101012 PMID: 40688253

04

Analysis of secondary trauma transfers within a Canadian regional trauma network: room for improvement?

McAleer R, Stephenson R, McGowan M, Nolan B, von Vopelius-Feldt J, FIRST60 Investigators

CJEM20251 citationsSenior author

DOI: 10.1007/s43678-025-00900-x PMID: 40238022

05

Feasibility and optimization of a second-tier prehospital critical care response for major trauma in a North American urban and suburban area: A geospatial analysis and modelling study.

Stephenson R, Sarhangian V, Cheskes S, Turner L, Nolan B, Drennan I, Chan TCY, von Vopelius-Feldt J, FIRST60 investigators (Online Supplement 1.0)

The American journal of emergency medicine2025Senior authorOpen Access

DOI: 10.1016/j.ajem.2025.07.025 PMID: 40680489

06

The future of prehospital whole blood transfusion in Canadian trauma care.

Dion PM, von Vopelius-Feldt J, Drennan IR, Nolan B

CJEM20245 citations

DOI: 10.1007/s43678-024-00756-7 PMID: 39106002

07

The Impact of Location and Asset Type on the Success of Advanced Airway Management in a Critical Care Transport Environment.

Li W, Ahghari M, von Vopelius-Feldt J, Nolan B

Air medical journal20242 citationsOpen Access

DOI: 10.1016/j.amj.2024.06.001 PMID: 39293919

08

A comparative analysis of current out-of-hospital transfusion protocols to expert recommendations.

Dion PM, Greene A, Beckett A, von Vopelius-Feldt J, Nolan B

Resuscitation plus20236 citationsOpen Access

DOI: 10.1016/j.resplu.2023.100498 PMID: 38026143

Frequent collaborators

Department of Medicine
Department of Mechanical & Industrial Engineering
Department of Family & Community Medicine
Institute of Medical Science
Department of Surgery
Emergency Medicine

Co-authors at University of Toronto, colored by department. Thicker lines mean more shared papers; select anyone to open their profile and their own map.

Brodie Nolan

Department of Medicine

6 shared papers, latest 2026

Ian Drennan

Department of Family & Community Medicine

4 shared papers, latest 2026

Sheldon Cheskes

Institute of Medical Science

3 shared papers, latest 2026

Andrew Beckett

Department of Surgery

2 shared papers, latest 2026

Timothy Chan

Department of Mechanical & Industrial Engineering

1 shared papers, latest 2025

Vahid Sarhangian

Department of Mechanical & Industrial Engineering

1 shared papers, latest 2025

Andy Pan

Emergency Medicine

1 shared papers, latest 2026

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Subject: Prospective PhD student Dear Professor Von Vopelius-Feldt, My name is [your name], and I am a [your current degree or role] at [your institution]. I am applying for a PhD position starting in [term and year]. I read your paper "Paramedics' Decisions to Withhold Resuscitation in Traumatic Cardiac Arrest: Accuracy of Paramedic Assessments Compared with Autopsy Findings." (2026), and it connects closely to my own work on [your research topic]. [One or two sentences on what you did and what you learned.] Are you accepting new PhD students for [term and year]? I have attached my CV and transcripts, and I would be glad to talk at a time that suits you. Thank you for your time. Kind regards, [your name]