Joanna C Dionne

Dr. Joanna Dionne is an Assistant Professor in the Divisions of Critical Care Medicine and Gastroenterology, Department of Medicine and Department of Health Research Methods, Evidence and Impact at McMaster University. Dr. Dionne is also a intensivist, gastroenterologist, and clinician-scientist at the Juravinski Hospital and Cancer Center in Hamilton, Ontario, Canada. 

Dr. Dionne obtained a Bachelor of Nursing from the University of New Brunswick in 2007 and was a Registered Nurse with the College of Nurses of Ontario between 2007 and 2012. Dr. Dionne obtained her Medical Degree from the DeGroote School of Medicine in 2012 and her MSc in Health Research Methodology, also from McMaster in 2010. Her postgraduate training in Internal Medicine, Gastroenterology, Critical Care Medicine, and the Clinician Investigator Program was completed at McMaster between 2012 and 2022. Dr. Dionne completed her PhD at McMaster University in 2021 in Health Research Methodology, with a specialization in Clinical Epidemiology.

Dr. Dionne's research work focuses on praxis of critical care gastroenterology with a focus on nutrition and the management of liver failure in the ICU. Dr. Dionne was the Principal Investigator (PI) of the international prospective cohort study “Diarrhea, Interventions, Consequences and Epidemiology in the Intensive Care Unit (DICE-ICU) Study” and is now leading the INVENTS-ICU Pilot Trial (contINuous Vs bolus fEeding oN gasTrointestinal outcomeS in the ICU) exploring the different modes of enteral nutrition deliver on GI outcomes.  Dr. Dionne has also be a co-investigator of the PROSPECT and REVISE trials. She has also received peer reviewed funding from Physicians’ Services Incorporated (PSI), the Canadian Association of Gastroenterology (CAG), Canadian Institute of Health Research and was awarded the prestigious Triangle Canada Early Career Research Award in 2023.

In addition to her work as a PI, Dr. Dionne has served as a guideline methodologist for multiple national and international guidelines including Canadian Blood Services, the Society of Critical Care Medicine, and the European Society for Intensive Care Medicine as part of the GUIDE Group on various topics including: the impact of alcohol in liver disease, stress ulcer prophylaxis in critically ill patients, transfusion guideline in bleeding in critically ill patients, transfusion guideline in non-bleeding critically ill patients.