Faculty profile
Jonathan Irish
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Read how they describe their research on their University of Toronto profile.
Latest papers
Geospatial analysis in addressing surgical care inequities: A scoping review and methodological guide.
PLOS digital health · 2026
Impact of Postoperative Neck Radiotherapy Volumes on Long-Term Unstimulated Saliva Flow Following Primary Surgery and Ipsilateral Neck Dissection for Oral Cavity Squamous Cell Carcinoma.
Head & neck · 2025
Long-Term Impact of Regionalization of Thoracic Oncology Surgery.
The Annals of thoracic surgery · 2025
Latest funding
- $1,487,925
The JUdicious Surveillance for Trastuzumab Induced Cardiotoxicity in the First Year (JUSTIFY) Randomized Controlled Trial
CIHR · 2025 · Co-investigator
- $481,952
Optimal Clinical and Geographic Placement of Integrated Community Health Services Centres: An Integrated Mixed Methods Approach
CIHR · 2024 · Co-investigator
- $108,500
Assessing the potentials of free-standing surgical centres to tackle prolonged wait times: an integrated knowledge translation approach
CIHR · 2024 · Supervisor
98 publications.
Geospatial analysis in addressing surgical care inequities: A scoping review and methodological guide.
Cohen M, Fu R, Irish J, Hallet J, Wright F, Coburn N, Gozdyra P, Lawendy AR, Eskander A
Impact of Postoperative Neck Radiotherapy Volumes on Long-Term Unstimulated Saliva Flow Following Primary Surgery and Ipsilateral Neck Dissection for Oral Cavity Squamous Cell Carcinoma.
Rooney CM, Huang SH, Su J, Bratman S, Cho J, de Almeida J, Glogauer M, Goldstein D, Hahn E, Hosni A, Hope A, Irish J, Kim J, O'Sullivan B, Ringash J, Spreafico A, Tsai J, Waldron J, Yao C, Watson E, McPartlin A
Long-Term Impact of Regionalization of Thoracic Oncology Surgery.
Crosina J, Wright F, Irish J, Rashid M, Martin T, Hirpara DH, Hunter A, Sundaresan S
Emergency physicians’ experiences managing patients with a suspected cancer diagnosis in Ontario, Canada: a qualitative study
Moore C, Petrovic B, Bender JL, Thompson C, McLeod SL, Savage D, Borgundvaag B, Ovens H, Irish J, Eskander A
Defining Standards for Hepatopancreatobiliary Cancer Surgery in Ontario, Canada: A Population-Based Cohort Study of Clinical Outcomes.
Hirpara DH, Irish J, Rashid M, Martin T, Zhu A, Hunter A, Jayaraman S, Wei AC, Coburn NG, Wright FC
Causes and impact of delays during the COVID-19 pandemic on head and neck cancer diagnosis.
Gete M, Huang SH, Ringash J, Irish J, Su J, Ballal Y, Waldron JN, Witterick I, de Almeida J, Hosni A, Hope AJ, Monteiro E, Cho J, O'Sullivan B, Kim J, Bratman S, Goldstein DP, McPartlin A, Tsai J, Tong L, Xu W, Hahn E
Surgeon- and hospital-level variation in wait times for scheduled non-urgent surgery in Ontario, Canada: A cross-sectional population-based study.
de Jager P, Aleman D, Baxter N, Bell C, Bodur M, Calzavara A, Campbell R, Carter M, Emerson S, Gagliardi A, Irish J, Martin D, Lee S, SaxeBraithwaite M, Seyedi P, Takata J, Yang S, Zanchetta C, Urbach DR
Disparities in surgery rates during the COVID-19 pandemic: retrospective study.
Sankar A, Stukel TA, Baxter NN, Wijeysundera DN, Hwang SW, Wilton AS, Chan TCY, Sarhangian V, Simpson AN, de Mestral C, Pincus D, Campbell RJ, Urbach DR, Irish J, Gomez D
Pathways to cancer care after a suspected cancer diagnosis in the emergency department: a survey of emergency physicians across Ontario
Grewal K, Thompson C, Ovens H, Sutradhar R, Savage DW, Borgundvaag B, Cheskes S, de Wit K, Eskander A, Irish J
Characterizing the Impact of Procedure Funding on the Covid-19 Generated Procedure Gap in Ontario: A Population-Based Analysis.
Gomez D, de Mestral C, Stukel TA, Irish J, Simpson AN, Wilton AS, Rotstein OD, Campbell RJ, Eskander A, Urbach DR, Baxter NN
The JUdicious Surveillance for Trastuzumab Induced Cardiotoxicity in the First Year (JUSTIFY) Randomized Controlled Trial
Principal investigators: Abdel-Qadir, Husam-Eldin M; Amir, Eitan
Keywords: Cardiac Imaging; Cardiotoxicity; Echocardiography; Heart Failure; Her-2 Positive Breast Cancer; Left Ventricular Ejection Fraction; Non-Inferiority; Nuclear Imaging; Randomized Controlled Trial; Trastuzumab
Optimal Clinical and Geographic Placement of Integrated Community Health Services Centres: An Integrated Mixed Methods Approach
Principal investigators: Eskander, Antoine; Fu, Rui; Lawendy, Abdel-Rahman
Keywords: Health Infrastructure; Health Policy; Health Services Research; Hospitals; Outpatient Surgery; Same-Day Surgery; Structure Of Care; Surgery; Surgical Centres; Wait Times
Assessing the potentials of free-standing surgical centres to tackle prolonged wait times: an integrated knowledge translation approach
Principal investigators: Fu, Rui
Keywords: Access To Surgery; Health Equity; Health Policy; Health Policy Research; Health Services Research; Integrated Knowledge Translation; Model Of Care; Outpatient Surgical Care; Quality Of Care; Surgery
Optimizing the Cancer Care Workforce Utilizing Existing Health Human Resources
Principal investigators: Krzyzanowska, Monika K; Irish, Jonathan C; Sriharan, Abiramy
Keywords: Collaborative; Healthcare Human Resources; Implementation; Program Evaluation; Workforce Optimization
Optimal geographic placement of integrated community health services centres: with a focus on health equity and sustainability
Principal investigators: Eskander, Antoine
Keywords: Access To Surgical Care; Carbon Emission; Day Surgery; Environmental Footprint; Health Equity; Health Services Research; Healthcare Infrastructure; Population Health; Structures Of Care; Surgical Facility
Understanding cancer care following a new or suspected cancer diagnosis through the emergency department
Principal investigators: Grewal, Keerat
Keywords: Barriers; Cancer; Diagnosis; Emergency Medicine; Health Service Use; Patient Outcomes
The Tsunami after the Earthquake: COVID-19 Impact on Cancer Care and Outcomes
Principal investigators: Eskander, Antoine; Sutradhar, Rinku
Keywords: Cancer; Chemotherapy; Health Disparities; Health Services Research; Modified Delphi Method; Pandemic; Radiation; Screening; Surgery; Wait-Times
The Surgical EQUITY initiative: Establishing equitable access to surgery following the pandemic
Principal investigators: Gomez Jaramillo, David; Chan, Timothy; Sankar, Ashwin
Keywords: Access To Care; Marginalization; Rurality; Surgery
Symptom burden as a Predictor of Emergency Room Visits and Unplanned Hospitalizations in Patients with Head and Neck Cancer - An evaluation of patterns of care, survival and healthcare costs in patients with head and neck cancer
Principal investigators: Eskander, Antoine; Irish, Jonathan C
Keywords: Cancer; Cancer Treatment; Care Effectiveness; Costs; Head And Neck Tumours; Patient Reported Outcomes; Patient-Centered Care; Population Health; Survival
Using real-world data to simulate the effects of efficient referral strategies on wait times for elective surgery in Canada
Principal investigators: Urbach, David R
Keywords: Access To Care; Discrete Event Simulation; Health Services Research; Operations Research; Simulation; Surgery; Sustainability Of Health Care; Wait Times
From CIHR, NSERC and SSHRC funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998, including their latest published competition results.
Frequent collaborators
- Radiation Oncology
- Department of Otolaryngology - Head and Neck Surgery
- Department of Surgery
- Surgery
- Neuropsychology
- Biostatistics Division
- Rheumatology
- Other
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.
Antoine Eskander
Faculty
20 shared papers, latest 2026
John Kim
Neuropsychology
15 shared papers, latest 2025
Andrew Hope
Radiation Oncology
14 shared papers, latest 2025
Wei Xu
Biostatistics Division
12 shared papers, latest 2024
John de Almeida
Radiation Oncology
6 shared papers, latest 2025
Ian Witterick
Department of Otolaryngology - Head and Neck Surgery
6 shared papers, latest 2024
Anna Spreafico
Faculty
5 shared papers, latest 2025
Fei-Fei Liu
Radiation Oncology
5 shared papers, latest 2015
Danny Enepekides
Department of Otolaryngology - Head and Neck Surgery
4 shared papers, latest 2021
Igor Jurisica
Rheumatology
4 shared papers, latest 2020
Monika Krzyzanowska
Faculty
3 shared papers, latest 2025
Julie Hallet
Surgery
3 shared papers, latest 2026
Meredith Giuliani
Department of Radiation Oncology
3 shared papers, latest 2020
Scott Bratman
Radiation Oncology
3 shared papers, latest 2025
Charles De Mestral
Department of Surgery
3 shared papers, latest 2024
Ruth Lee
Nursing
3 shared papers, latest 2015
Frances Wright
Faculty
3 shared papers, latest 2026
Sophie Lebel
Psychology
3 shared papers, latest 2018
Natalie Coburn
Surgery
3 shared papers, latest 2026
Gary Rodin
Epidemiology Division
3 shared papers, latest 2016
Rinku Sutradhar
Institute of Health Policy, Management, and Evaluation
2 shared papers, latest 2024
Vahid Sarhangian
Faculty
2 shared papers, latest 2024
Venkatesh Thiruganasambandamoorthy
Emergency Medicine
2 shared papers, latest 2025
Kerstin de Wit
Emergency Medicine
2 shared papers, latest 2025
Keerat Grewal
Faculty
2 shared papers, latest 2025
Sheldon Cheskes
Emergency Medicine
2 shared papers, latest 2025
Kazuhiro Yasufuku
Department of Surgery
2 shared papers, latest 2023
Kerstin de Wit
Medicine
2 shared papers, latest 2025
Robin Mcleod
Surgery
2 shared papers, latest 2015
Andrea Eisen
Faculty
2 shared papers, latest 2023
Bradley Allan Petrisor
Surgery
1 shared papers, latest 2023
Laurie Elit
Obstetrics & Gynecology
1 shared papers, latest 2015
Timothy Whelan
Oncology
1 shared papers, latest 2023
Edward Passos
Surgery
1 shared papers, latest 2023
Han Zhang
Surgery
1 shared papers, latest 2017
John Agzarian
Surgery
1 shared papers, latest 2023
Paul Engels
Surgery
1 shared papers, latest 2023
Ilun Yang
Surgery
1 shared papers, latest 2023
Dennis Hong
Surgery
1 shared papers, latest 2023
Bobby Shayegan
Surgery
1 shared papers, latest 2023
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Profile data last refreshed on September 25, 2026 from the university directory, publication records and CIHR, NSERC and SSHRC funding.