Faculty profile

Ian Drennan

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Assistant ProfessorDepartment of Family and Community MedicineUniversity of Toronto

Ian Drennan

Assistant Professor

Department of Family and Community Medicine

Temerty Faculty of Medicine

University of Toronto

Toronto, Ontario, Canada

ORCID

Supervision signals

Professors usually supervise graduate students in their department's programs.
12 publications in the last five years, latest in 2026.
Senior (last) author on 1 recent paper, a sign of leading a research group.
Principal investigator on 1 research grant (1 CIHR), most recently in 2022.

These signals come from public records, including CIHR, NSERC and SSHRC funding decisions. Ask the professor or the graduate program whether they are taking new students.

Academic metrics

Publications

Citations

h-index

Collaborators

Grants

Publications by year

Counts cover the works listed on the university profile; citation counts come from Dimensions.

Education

PhD
BScHK

Profiles and links

University Profile Search on Google Scholar iDORCID

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Signals and details

Research

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

Collaboration Health Services Research Knowledge Translation Paramedicine Patient-Centred Care

Latest papers

Beyond Blood Pressure: The Emerging Role of Wearable Doppler Ultrasound in Prehospital Care.
Prehospital emergency care · 2026
Prehospital whole blood transfusion in hemorrhagic shock: A systematic review.
Transfusion · 2026
Ventilation parameters during adult cardiopulmonary resuscitation: a systematic review
Resuscitation Plus · 2026

All 17 publications

Latest funding

Empowering Communities to Save Lives: Optimizing the Neighbours Saving Neighbours Program for Cardiac Arrest Response
CIHR · 2026 · Co-investigator
$100,000
Redesigning Paramedicine in Canada: An Underutilized Health Human Resource in a Healthcare Crisis
CIHR · 2023 · Co-investigator
$10,000
Canadian National Paramedic Research Agenda Planning Session
CIHR · 2022 · Nominated PI
$10,000

All 10 grants and awards

17 publications.

Beyond Blood Pressure: The Emerging Role of Wearable Doppler Ultrasound in Prehospital Care.

Bojic D, Drennan I, Nolan B

Prehospital emergency care2026

DOI: 10.1080/10903127.2026.2677176 PMID: 42202144

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

Transfusion2026

DOI: 10.1111/trf.70146 PMID: 41793116

Ventilation parameters during adult cardiopulmonary resuscitation: a systematic review

Johnson NJ, Debaty G, Yang BY, Moskowitz A, Drennan I, del Castillo J, Olasveengen T, Berg KM, Morrison LJ, Bray JE

Resuscitation Plus20263 citations

DOI: 10.1016/j.resplu.2026.101299

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 plus2025

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

Extracorporeal and Conventional Cardiopulmonary Resuscitation and Low-Flow Duration: Insights From a Nationwide Hospital-Based Registry Study in Japan (JAAM-OHCA Registry).

Matsuyama T, Ohta B, Komukai S, Cheskes S, Lin S, Mohindra R, Drennan I, von Vopelius-Feldt J, Kitamura T

Journal of the American Heart Association2025

DOI: 10.1161/jaha.124.039938 PMID: 40654244

Development of Prompt Templates for Large Language Model-Driven Screening in Systematic Reviews.

Cao C, Sang J, Arora R, Chen D, Kloosterman R, Cecere M, Gorla J, Saleh R, Drennan I, Teja B, Fehlings M, Ronksley P, Leung AA, Weisz DE, Ware H, Whelan M, Emerson DB, Arora RK, Bobrovitz N

Annals of internal medicine2025

DOI: 10.7326/annals-24-02189 PMID: 39993313

Injury severity bias in missing prehospital vital signs: Prevalence and implications for trauma registries.

O'Neill M, Cheskes S, Drennan I, Keown-Stoneman C, Lin S, Nolan B

Injury2025

DOI: 10.1016/j.injury.2024.111747 PMID: 39054233

Study protocol for a pilot randomised controlled trial assessing prehospital whole blood versus component therapy in traumatic haemorrhage: SWiFT Canada (study of whole blood in frontline trauma).

Lin Y, Peddle M, Callum J, Beckett A, da Luz LT, Drennan I, Pavenski K, Mack J, McGowan M, Ahghari M, Smith J, Green L, Keown-Stoneman CDG, Nolan B, SWiFT Canada Investigators

BMJ open2025

DOI: 10.1136/bmjopen-2025-108570 PMID: 41475814

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 medicine2025

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

Resuscitation of patients with durable mechanical circulatory support with acutely altered perfusion or cardiac arrest: A scoping review.

Moskowitz A, Pocock H, Lagina A, Ng KC, Scholefield BR, Zelop CM, Bray J, Rossano J, Johnson NJ, Dunning J, Olasveengen T, Raymond T, Morales DLS, Carlese A, Elias M, Berg KM, Drennan I, ILCOR Advanced Life Support, Basical Life Support, and Pediatric Life Support Task Forces

Resuscitation2024Senior author

DOI: 10.1016/j.resuscitation.2024.110389 PMID: 39245405

Empowering Communities to Save Lives: Optimizing the Neighbours Saving Neighbours Program for Cardiac Arrest Response

Co-investigatorCIHR2026Project Grant

Principal investigators: Brooks, Steven C; BAYLES, Diana; Chan, Timothy; Cheskes, Sheldon; Christenson, James M; Dainty, Katie N; Morrison, Laurie J

Keywords: Cardiopulmonary Resuscitation; Community Volunteer Responders; Cost-Effectiveness; Emergency Medical Dispatch; Emergency Medical Services; Emergency Services Delivery; Hybrid Implementation-Effectiveness Design; Optimization Modelling; Out-Of-Hospital Cardiac Arrest; Resuscitation Science

$100,000

Redesigning Paramedicine in Canada: An Underutilized Health Human Resource in a Healthcare Crisis

Co-investigatorCIHR2023Planning and Dissemination Grant - Institute Community Support

Principal investigators: Tavares, Walter

Keywords: Canadian Institutes Of Health Research

$10,000

Canadian National Paramedic Research Agenda Planning Session

Nominated PICIHR2022Planning and Dissemination Grant - Institute Community Support

Principal investigators: Drennan, Ian; Blanchard, Ian

Keywords: Collaboration; Health Services Research; Knowledge Translation; Paramedicine; Patient-Centred Care

$10,000

Development and validation of a prehospital score to predict blood transfusion requirements for injured patients: The Prehospital Transfusion Prediction (PTP) Score

Co-investigatorCIHR2021Project Grant

Principal investigators: Nolan, Brodie; Cheskes, Sheldon

Keywords: Emergency Medicine; Prediction Score; Prehospital Care; Transfusion; Trauma Systems; Trauma/Injury

$218,026

Opioid Overdose-Related Cardiac Arrest: What are the Best Interventions?

Co-investigatorCIHR2020Project Grant

Principal investigators: Grunau, Brian E; Buxton, Jane; Christenson, James M

Keywords: Advanced Life Support; Basic Life Support; Cardiac Arrest; Cardiopulmonary Resuscitation; Naloxone; Opioid Overdose; Opioid Use Disorder; Resuscitation

$283,051

Resuscitation in Motion (RiM) 2020: Accelerating Collaboration in Resuscitation Science

Co-investigatorCIHR2019Planning and Dissemination Grant - Institute Community Support

Principal investigators: Dainty, Katie N

Keywords: Capacity Building; Cardiac Arrest; Collaboration; Knowledge Exchange; Mentorship; Patient-Centred Engagement; Research Innovation; Resuscitation

$15,000

Building Capacity for Patient Engagement & Priority-Setting in Resuscitation Science

Co-investigatorCIHR2017Patient-Oriented Research Collaboration Grants - New/Early Career Investigators

Principal investigators: Dainty, Katie N; Church, Matthew N

Keywords: Cardiac Arrest; Public Engagement; Research Priority-Setting

$40,000

Resuscitation in Motion (RiM) 2018 - From Research to Real World Resuscitation - Dissemination and knowledge exchange for best practice

Co-investigatorCIHR2017Planning and Dissemination Grant - Institute Community Support

Principal investigators: Morrison, Laurie J

Keywords: Citizen And Patient Engagement; Dissemination And Implementation; Health Systems And Service Delivery; Knowledge Exchange; Resuscitation; Training And Mentoring

$15,000

The Epinephrine Randomized Optimal Versus Current Dose (EpiROC) Canada Trial

Co-investigatorCIHR2016Project Grant

Principal investigators: Dorian, Paul; Lin, Steve; Morrison, Laurie J

Keywords: Cardiac Arrest; Epinephrine; Randomized Controlled Trial; Resuscitation; Ventricular Fibrillation; Ventricular Tachycardia

$2,509,200

Paramedic Initiated Treatment of Sepsis Trial in Out-of-hospital Patients (PITSTOP)

Co-investigatorCIHR2015Operating Grant

Principal investigators: Scales, Damon C

Keywords: Antibiotics; Emergency Medical Services; Mortality; Multidisciplinary Care; Paramedics; Pre-Hospital Care; Sepsis; Time-Sensitive Treatment

$900,554

From CIHR, NSERC and SSHRC funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998, including their latest published competition results.

Profile data last refreshed on September 25, 2026 from the university directory, publication records and CIHR, NSERC and SSHRC funding.

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Ian Drennan

Research

Latest papers

Latest funding

Beyond Blood Pressure: The Emerging Role of Wearable Doppler Ultrasound in Prehospital Care.

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

Ventilation parameters during adult cardiopulmonary resuscitation: a systematic review

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

Extracorporeal and Conventional Cardiopulmonary Resuscitation and Low-Flow Duration: Insights From a Nationwide Hospital-Based Registry Study in Japan (JAAM-OHCA Registry).

Development of Prompt Templates for Large Language Model-Driven Screening in Systematic Reviews.

Injury severity bias in missing prehospital vital signs: Prevalence and implications for trauma registries.

Study protocol for a pilot randomised controlled trial assessing prehospital whole blood versus component therapy in traumatic haemorrhage: SWiFT Canada (study of whole blood in frontline trauma).

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.

Resuscitation of patients with durable mechanical circulatory support with acutely altered perfusion or cardiac arrest: A scoping review.

Empowering Communities to Save Lives: Optimizing the Neighbours Saving Neighbours Program for Cardiac Arrest Response

Redesigning Paramedicine in Canada: An Underutilized Health Human Resource in a Healthcare Crisis

Canadian National Paramedic Research Agenda Planning Session

Development and validation of a prehospital score to predict blood transfusion requirements for injured patients: The Prehospital Transfusion Prediction (PTP) Score

Opioid Overdose-Related Cardiac Arrest: What are the Best Interventions?

Resuscitation in Motion (RiM) 2020: Accelerating Collaboration in Resuscitation Science

Building Capacity for Patient Engagement & Priority-Setting in Resuscitation Science

Resuscitation in Motion (RiM) 2018 - From Research to Real World Resuscitation - Dissemination and knowledge exchange for best practice

The Epinephrine Randomized Optimal Versus Current Dose (EpiROC) Canada Trial

Paramedic Initiated Treatment of Sepsis Trial in Out-of-hospital Patients (PITSTOP)

Frequent collaborators

Sheldon Cheskes

Brodie Nolan

Steve Lin

Brian Grunau

Sean van Diepen

Bijan Teja

Andy Pan

Paul Dorian

Jeannie Callum

Jeannie Callum

Michelle Welsford

Vahid Sarhangian

Michael Fehlings

Paul Ronksley

Paul Ronksley