Lisa Puchalski Ritchie



Research Programs


Dr. Puchalski Ritchie is a Scientist at the Li Ka Shing Knowledge Institute in the Knowledge Translation Program. She is an emergency physician at University Health Network, and an Assistant Professor in the Division of Emergency Medicine, Department of Medicine, at the University of Toronto and Assistant Professor (status only) at the Institute of Health Policy, Management and Evaluation at the University of Toronto. 

She is a clinical epidemiologist with a research focus on the use of knowledge translation strategies to improve health care delivery and outcomes for high burden local identified priority health conditions in resource limited health care settings. 

Please note: Dr. Puchalski Ritchie is not taking any summer students.

Recent Publications

  1. Bhuiya, AR, Sutherland, J, Boateng, R, Bain, T, Skidmore, B, Perrier, L et al.. A scoping review reveals candidate quality indicators of Knowledge Translation and Implementation Science practice tools. J Clin Epidemiol. 2023; :. doi: 10.1016/j.jclinepi.2023.10.021. PubMed PMID:37939744 .
  2. Gamble, K, Murthy, S, Silverberg, SL, Gobat, N, Puchalski Ritchie, LM. Canadian critical care nurses experiences on the front lines of the COVID-19 pandemic: a qualitative descriptive study. BMC Nurs. 2022;21 (1):330. doi: 10.1186/s12912-022-01105-8. PubMed PMID:36443791 PubMed Central PMC9706905.
  3. Bhuiya, AR, Makarski, J, Hayden, L, Perrier, L, Munce, S, Lewis, I et al.. Identifying candidate quality indicators of tools that support the practice of knowledge translation: a scoping review protocol. JBI Evid Synth. 2023;21 (1):264-278. doi: 10.11124/JBIES-22-00055. PubMed PMID:36111878 .
  4. Adombire, S, Puts, M, Puchalski Ritchie, LM, Ani-Amponsah, M, Cranley, L. Knowledge, skills, attitudes, beliefs, and implementation of evidence-based practice among nurses in low- and middle-income countries: a scoping review protocol. JBI Evid Synth. 2022;20 (10):2519-2527. doi: 10.11124/JBIES-21-00313. PubMed PMID:36081358 .
  5. Puchalski Ritchie, LM, Beza, L, Debebe, F, Wubetie, A, Gamble, K, Lebovic, G et al.. Effect of a tailored sepsis treatment protocol on patient outcomes in the Tikur Anbessa Specialized Hospital, Ethiopia: results of an interrupted time series analysis. Implement Sci. 2022;17 (1):45. doi: 10.1186/s13012-022-01221-8. PubMed PMID:35854310 PubMed Central PMC9295292.
  6. Puchalski Ritchie, LM, Kip, EC, Mundeva, H, van Lettow, M, Makwakwa, A, Straus, SE et al.. Process evaluation of an implementation strategy to support uptake of a tuberculosis treatment adherence intervention to improve TB care and outcomes in Malawi. BMJ Open. 2021;11 (7):e048499. doi: 10.1136/bmjopen-2020-048499. PubMed PMID:34215610 PubMed Central PMC8256754.
  7. Silverberg, SL, Puchalski Ritchie, LM, Gobat, N, Murthy, S. COVID-19 infection prevention and control procedures and institutional trust: Perceptions of Canadian intensive care and emergency department nurses. Can J Anaesth. 2021;68 (8):1165-1175. doi: 10.1007/s12630-021-02028-9. PubMed PMID:34046822 PubMed Central PMC8158085.
  8. Puchalski Ritchie, LM, van Lettow, M, Makwakwa, A, Kip, EC, Straus, SE, Kawonga, H et al.. Impact of a tuberculosis treatment adherence intervention versus usual care on treatment completion rates: results of a pragmatic cluster randomized controlled trial. Implement Sci. 2020;15 (1):107. doi: 10.1186/s13012-020-01067-y. PubMed PMID:33308257 PubMed Central PMC7731739.
  9. Silverberg, SL, Puchalski Ritchie, LM, Gobat, N, Nichol, A, Murthy, S. Clinician-researcher's perspectives on clinical research during the COVID19 pandemic. PLoS One. 2020;15 (12):e0243525. doi: 10.1371/journal.pone.0243525. PubMed PMID:33296427 PubMed Central PMC7725301.
  10. Puchalski Ritchie, LM, van Lettow, M, Pham, B, Straus, SE, Hosseinipour, MC, Rosenberg, NE et al.. What interventions are effective in improving uptake and retention of HIV-positive pregnant and breastfeeding women and their infants in prevention of mother to child transmission care programmes in low-income and middle-income countries? A systematic review and meta-analysis. BMJ Open. 2019;9 (7):e024907. doi: 10.1136/bmjopen-2018-024907. PubMed PMID:31362959 PubMed Central PMC6677958.
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Affiliations & Other Activities

  • Assistant Professor, Department of Medicine, Division of Emergency Medicine, University of Toronto
  • Emergency Physician, University Health Network