Margaret S Herridge, BSc, MSc, MPH, MD, FRCPC

Dr. Margaret S. Herridge is Senior Scientist at the Toronto General Hospital Research Institute. She is Professor of Respiratory Medicine and Director of Research for the Interdepartmental Division of Critical Care Medicine at the University of Toronto. She obtained her MSc and MD from Queen’s University in Kingston, completed her clinical training in Respiratory and Critical Care Medicine at the University of Toronto and obtained her MPH at the Harvard School of Public Health. Dr. Herridge has authored/co-authored over 180 manuscripts and book chapters on topics related to outcomes after critical illness in patients and family caregivers, and she is the co-editor of the first two textbooks of post-ICU medicine. She has published two editorials and three manuscripts in the New England Journal of Medicine on outcomes after acute respiratory distress syndrome (ARDS) and family caregivers after prolonged mechanical ventilation, and is a frequent international speaker on outcomes after critical illness.


Selected Honours and Awards

  • 2015 Dr. F. Marguerite Hill Lecturer (awarded to a woman in medicine who has made a considerable impact at an international level with demonstrable benefit to the wellbeing of patients and society at large)
  • 2016 Honorary Member, European Society of Intensive Care Medicine (awarded for outstanding contribution to the international field of Intensive Care Medicine)
  • 2017 Inaugural Excellence in Research Faculty Award, Division of Respirology (for sustained excellence in research)
  • 2018 Critical Care Lifetime Achievement Award, American Thoracic Society (for a career devoted to research and teaching of the science and practice of Critical Care Medicine and outstanding service to the Assembly on Critical Care)
  • 2019 Eaton Scholar Researcher of the Year (Clinical) Award, Department of Medicine, University of Toronto (for outstanding leadership and contributions to research)
  • 2020 Deborah Cook Mentorship Award, Canadian Critical Care Trials Group

Dr. Herridge is committed to evaluating and improving long-term patient and family caregiver outcomes after critical illness. Since 1997, her group has completed three cohort studies: 5-year outcomes in survivors of ARDS (co-PI Dr. Angela Cheung); 1-year outcomes in survivors of SARS (co-PI Dr. Catherine Tansey); 2-year outcomes in patients after 7 days of mechanical ventilation and their family caregivers (RECOVER Program Phase I co-PI Dr. Jill Cameron). Currently, Dr. Herridge is co-leading (with Dr. Angela Cheung) the CIHR-funded CANCOV Program (Prospective multi-centre 1-year Cohort Study of COVID-19 patients and caregivers). She is Director of the RECOVER Clinical and Research Program for patient-and family-centered follow-up care after critical illness, conducted in collaboration with the Canadian Critical Care Trials group (CCCTG).

Areas of academic focus
Long-term outcomes after acute respiratory distress syndrome (ARDS), SARS and prolonged mechanical ventilation; RECOVER Program: Patient- and family-centered follow-up care after critical illness; CANCOV Program.

For a list of Dr. Herridge's publications, please visit PubMed, Scopus or ORCID.

Professor, Department Medicine, University of Toronto
Clinician Scientist, Co-Principal Investigator, Program in Outcomes and Rehabilitation After Critical Illness