Faculty profile

Justyna Bartoszko

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Assistant ProfessorDepartment of Anesthesiology and Pain MedicineUniversity of Toronto

Justyna Bartoszko

Assistant Professor

Department of Anesthesiology and Pain Medicine

Temerty Faculty of Medicine

University of Toronto

Toronto, Ontario, Canada

Scholar ORCID

Supervision signals

Professors usually supervise graduate students in their department's programs.
48 publications in the last five years, latest in 2026.
Senior (last) author on 19 recent papers, a sign of leading a research group.
Principal investigator on 1 research grant (1 CIHR), most recently in 2021.

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

194

Citations

h-index

Collaborators

Grants

Publications by year

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

Education

M.Sc. in Clinical Epidemiology and Health Care Research
M.D.
B.Sc. in Pharmacology & Toxicology/Cell & Molecular Biology

Profiles and links

University Profile Google Scholar iDORCID

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Signals and details

Research

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

Cardiac Surgical Procedures Covid-19 Left Ventricular Dysfunction Left Ventricular Ejection Fraction Mortality Sex Differences Socioeconomic Factors Surgical Wait Time

Latest papers

Perioperative Antithrombin Activity and Postoperative Outcomes in Adult Cardiac Surgery: A Prospective Cohort in Contemporary Plasma-Sparing Practice.
Journal of cardiothoracic and vascular anesthesia · 2026 · senior author
Preoperative Iron-Deficiency Anemia and Survival After Cardiac Surgery: A Retrospective Cohort Study.
Journal of cardiothoracic and vascular anesthesia · 2026 · senior author
Association of Preoperative Echocardiographic Right Ventricular Systolic Function With Outcomes After Cardiac Surgery: A Retrospective Cohort Study.
Anesthesia and analgesia · 2026

All 64 publications

Latest funding

FAST Walk (Functional Assessment for Surgery by a Timed Walk) Study: A Multicentre Prospective Cohort Study of the Six-Minute Walk Test For Improving Preoperative Risk Stratification for Major Non-Cardiac Surgery.
CIHR · 2021 · Co-investigator
$1,410,813
Four-Factor Prothrombin Complex Concentrate Versus Frozen Plasma in Bleeding Adult Cardiac Surgical Patients: A multicentre randomized controlled trial
CIHR · 2021 · Co-investigator
$1,082,474
The indirect impact of COVID-19 on cardiac function and associated outcomes in patients awaiting cardiac surgery: An opportunity to inform data-driven surgical wait list management
CIHR · 2021 · Principal investigator
$411,126

All 3 grants and awards

64 publications.

Perioperative Antithrombin Activity and Postoperative Outcomes in Adult Cardiac Surgery: A Prospective Cohort in Contemporary Plasma-Sparing Practice.

Hua N, Abraha M, Guerra REG, Barkley V, Callum J, Payne D, Lieberman L, McCluskey SA, Karkouti K, Bartoszko J

Journal of cardiothoracic and vascular anesthesia2026Senior author

DOI: 10.1053/j.jvca.2026.08.157 PMID: 42786025

Preoperative Iron-Deficiency Anemia and Survival After Cardiac Surgery: A Retrospective Cohort Study.

Alkadri J, Chen M, Karkouti K, Grudzinski A, Ouzounian M, Rubens F, Raphael J, Callum J, Lin Y, McCluskey SA, McIsaac DI, Bartoszko J

Journal of cardiothoracic and vascular anesthesia2026Senior author

DOI: 10.1053/j.jvca.2026.04.018 PMID: 42091376

Association of Preoperative Echocardiographic Right Ventricular Systolic Function With Outcomes After Cardiac Surgery: A Retrospective Cohort Study.

Alavi N, Bartoszko J, Karkouti K, Wijeysundera HC, Chung J, Mathis MR, Mashari A, Salvatori M, Vegas A, Van Klei W

Anesthesia and analgesia2026

DOI: 10.1213/ane.0000000000007931 PMID: 42607294

The association of estimated citrate load with frozen plasma versus four-factor prothrombin complex concentrate for coagulopathy after cardiac surgery: a post hoc exploratory analysis of the FARES-II randomised controlled trial.

Tanaka KA, Butt AL, Stewart KE, Pezeshki G, Werner S, Bartoszko J, Ghadimi K, Solomon C, Vandyck K, Levy JH, Callum JL, Knaub S, Hegener O, Karkouti K

BJA open2026

DOI: 10.1016/j.bjao.2026.100577 PMID: 42404094

Factor Concentrates for the Treatment of Acquired Coagulopathy in Patients With Left Ventricular Assist Devices: A Systematic Review.

Kojundzic I, Lam A, Holmes M, Dvirnik N, Janda A, Petricevic M, Englesakis M, Karkouti K, Bartoszko J

Journal of cardiothoracic and vascular anesthesia2026Senior author

DOI: 10.1053/j.jvca.2026.08.120 PMID: 42674901

Fibrinogen Concentrate in Acute Hemorrhage: Mechanistic Insight, Thresholds, and Targeted Replacement.

Rahe-Meyer N, Bartoszko J, Levy JH

Journal of clinical medicine2026

DOI: 10.3390/jcm15166156 PMID: 42652560

Definition, analysis, reporting, and interpretation of perioperative bleeding in randomized controlled trials: a methodological systematic review.

Mohammadi Kamalabadi Y, Zou G, El-Shimy M, Zitoun NM, Bartoszko J, Roshanov PS

Perioperative medicine (London, England)2026

DOI: 10.1186/s13741-026-00715-z PMID: 42387607

Superiority of Fibrinogen Concentrate Versus Cryoprecipitate for Treatment of Bleeding in Cardiac Surgery Patients: A Secondary Analysis of the FIBRES Randomized Clinical Trial Stratified by Surgical Risk.

Bartoszko J, Karkouti K, Callum JL, FIBRES Research Group

Journal of cardiothoracic and vascular anesthesia2026First author

DOI: 10.1053/j.jvca.2026.06.019 PMID: 42448488

Predictors and prognostic value for in-hospital outcomes associated with postoperative anemia in cardiac surgery: a retrospective cohort study.

Chen MMZ, Ouzounian M, McCluskey S, Karkouti K, Bartoszko J

Canadian journal of anaesthesia = Journal canadien d'anesthesie2026Senior author

DOI: 10.1007/s12630-026-03126-2 PMID: 42174358

The effect of perioperative erythropoietin-stimulating agents and intravenous iron on patient outcomes following solid organ transplantation: A systematic review.

Lee F, Eichbaum Q, Cserti-Gazdewich C, Mullane D, Lombard FW, Jacobs JW, Pavenski K, Englesakis M, Dotto A, Cho T, Leonard-Reixa A, Trudeau J, Shih AW, Bartoszko J

Transfusion medicine (Oxford, England)2026Senior author

DOI: 10.1111/tme.70045 PMID: 41371637

Write to this professor

A short, specific email works best. This draft uses one of their recent papers; replace the parts in brackets with your own details before sending.

Applying for

Paper to mentionMention their CIHR grant from 2021

Subject: Prospective PhD student: Cardiac Surgical Procedures Dear Professor Bartoszko, 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 "Perioperative Antithrombin Activity and Postoperative Outcomes in Adult Cardiac Surgery: A Prospective Cohort in Contemporary Plasma-Sparing Practice." (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.] I also saw your CIHR-funded project "The indirect impact of COVID-19 on cardiac function and associated outcomes in patients awaiting cardiac surgery: An opportunity to inform data-driven surgical wait list management" (2021), and I would be glad to contribute to work in that direction. 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]

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

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Justyna Bartoszko

Research

Latest papers

Latest funding

Perioperative Antithrombin Activity and Postoperative Outcomes in Adult Cardiac Surgery: A Prospective Cohort in Contemporary Plasma-Sparing Practice.

Preoperative Iron-Deficiency Anemia and Survival After Cardiac Surgery: A Retrospective Cohort Study.

Association of Preoperative Echocardiographic Right Ventricular Systolic Function With Outcomes After Cardiac Surgery: A Retrospective Cohort Study.

The association of estimated citrate load with frozen plasma versus four-factor prothrombin complex concentrate for coagulopathy after cardiac surgery: a post hoc exploratory analysis of the FARES-II randomised controlled trial.

Factor Concentrates for the Treatment of Acquired Coagulopathy in Patients With Left Ventricular Assist Devices: A Systematic Review.

Fibrinogen Concentrate in Acute Hemorrhage: Mechanistic Insight, Thresholds, and Targeted Replacement.

Definition, analysis, reporting, and interpretation of perioperative bleeding in randomized controlled trials: a methodological systematic review.

Superiority of Fibrinogen Concentrate Versus Cryoprecipitate for Treatment of Bleeding in Cardiac Surgery Patients: A Secondary Analysis of the FIBRES Randomized Clinical Trial Stratified by Surgical Risk.

Predictors and prognostic value for in-hospital outcomes associated with postoperative anemia in cardiac surgery: a retrospective cohort study.

The effect of perioperative erythropoietin-stimulating agents and intravenous iron on patient outcomes following solid organ transplantation: A systematic review.

FAST Walk (Functional Assessment for Surgery by a Timed Walk) Study: A Multicentre Prospective Cohort Study of the Six-Minute Walk Test For Improving Preoperative Risk Stratification for Major Non-Cardiac Surgery.

Four-Factor Prothrombin Complex Concentrate Versus Frozen Plasma in Bleeding Adult Cardiac Surgical Patients: A multicentre randomized controlled trial

The indirect impact of COVID-19 on cardiac function and associated outcomes in patients awaiting cardiac surgery: An opportunity to inform data-driven surgical wait list management

Frequent collaborators

Keyvan Karkouti

Jeannie Callum

Jeannie Callum

Wilton van Klei

Lusine Abrahamyan

Summer Syed

Lani Lieberman

Azad Mashari

Tony Panzarella

Sheila Riazi

Marcus Salvatori

Matteo Parotto

Christine Cserti-Gazdewich

Christopher Harle

Mark Crowther

Michelle Zeller

Michael Law

Mark McVey

Fahad Razak

Tracy Stockley

David Wong

Ruxandra Pinto

Amol Verma

Na Li

Sangeeta Mehta

Mandeep Singh

Nimish Mittal

Jennifer Chung

Guangyong Zou

Murray Krahn

Aaron Schimmer

Achilleas Thoma

Isaac Bogoch

Fraser Rubens

Jason Moffat

Hance Clarke

George Tomlinson

Fahad Razak

Amol Verma

Lorenzo Del Sorbo