Tyler Chesney




Tyler Chesney is a colorectal and gastrointestinal surgical oncologist at St. Michael’s Hospital, Assistant Professor at the University of Toronto in the Department of Surgery, and Investigator at the Li Ka Shing Knowledge Institute. He completed medical school at McMaster University in 2013 and a Master of Science at Queen’s University focusing on knowledge translation in cognitive aging and dementia. He completed residency in General Surgery at the University of Toronto in 2018, and Complex General Surgical Oncology at the University of Toronto in 2020.

He has a longstanding commitment to caring for older adults including volunteer work with Alzheimer Society and Hospice, leadership of the geriatrics interest group in medical school, and research and clinical activity as a surgical trainee. Now, he is a member of the Canadian Network on Aging and Cancer (CNAC), the International Society of Geriatric Oncology (SIOG) Surgical Ad-Hoc Committee, and the Canadian Society of Surgical Oncology (CSSO) Executive Committee.  He has a strong interest in building collaborative networks within Canada to enhance the care of surgical oncology patients. His ongoing clinical and scholarly work aims to build clinical capacity of geriatric surgical oncology and advance the care of older adults with cancer within Canada. At St. Michael’s he is helping to build the Older Adults Surgery & Oncology Program (OSOP), and creating cross-specialty learning events between surgery and geriatrics trainees.

Recent Publications

  1. Acuna, SA, Dossa, F, Chesney, TR. Long-term Outcomes of Laparoscopic Lavage for Perforated Diverticulitis Remain Unfavorable. JAMA Surg. 2021; :. doi: 10.1001/jamasurg.2021.3305. PubMed PMID:34319375 .
  2. Arora, A, Chadi, SA, Chesney, T. What Should We Recommend for Colorectal Cancer Screening in Adults Aged 75 and Older?. Curr Oncol. 2021;28 (4):2540-2547. doi: 10.3390/curroncol28040231. PubMed PMID:34287279 PubMed Central PMC8293045.
  3. Acuna, SA, Dossa, F, Chesney, TR. Improving the reporting of non-inferiority trials by incorporating non-efficacy benefits: not all on-inferiority trials are created equal. Eur J Epidemiol. 2021; :. doi: 10.1007/s10654-021-00791-z. PubMed PMID:34279730 .
  4. Pang, C, Hallet, J, Chesney, TR, Haas, B, Wright, FC, Conn, LG et al.. Using Social Science Theory Can Change How the Patient Experience Is Viewed in Surgical Care. Ann Surg. 2021; :. doi: 10.1097/SLA.0000000000005021. PubMed PMID:34171872 .
  5. Acuna, SA, Dossa, F, Chesney, TR. Comments and Concerns on the LASER Trial. JAMA Surg. 2021; :. doi: 10.1001/jamasurg.2021.2250. PubMed PMID:34106228 .
  6. Jung, F, Guidolin, K, Lee, MH, Lam-Tin-Cheung, K, Zhao, G, Doshi, S et al.. Interventions and Outcomes for Neoadjuvant Treatment of T4 Colon Cancer: A Scoping Review. Curr Oncol. 2021;28 (3):2065-2078. doi: 10.3390/curroncol28030191. PubMed PMID:34072615 PubMed Central PMC8261638.
  7. Montroni, I, Saur, NM, Shahrokni, A, Suwanabol, PA, Chesney, TR. Surgical Considerations for Older Adults With Cancer: A Multidimensional, Multiphase Pathway to Improve Care. J Clin Oncol. 2021;39 (19):2090-2101. doi: 10.1200/JCO.21.00143. PubMed PMID:34043436 .
  8. Chesney, TR, Metz, JJ, Nadler, A, Quereshy, FA, Ashamalla, S, Acuna, SA et al.. Long-term outcomes of resection for locoregional recurrence of colon cancer: A retrospective descriptive cohort study. Eur J Surg Oncol. 2021; :. doi: 10.1016/j.ejso.2021.05.003. PubMed PMID:34034943 .
  9. Chesney, TR, Coburn, N, Mahar, AL, Davis, LE, Zuk, V, Zhao, H et al.. All-Cause and Cancer-Specific Death of Older Adults Following Surgery for Cancer. JAMA Surg. 2021;156 (7):e211425. doi: 10.1001/jamasurg.2021.1425. PubMed PMID:33978695 PubMed Central PMC8117065.
  10. Bennett, S, Chesney, T, Coburn, N, Zuk, V, Haas, B, Zhao, H et al.. Long-Term Dependency Outcomes in Older Adults Following Hepato-Pancreato-Biliary Surgery for Cancer: A Population-Based Analysis. Ann Surg. 2021; :. doi: 10.1097/SLA.0000000000004867. PubMed PMID:33914463 .
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Affiliations & Other Activities

  • Department of Surgery, University of Toronto
  • Department of Surgery, St. Michael’s Hospital, Toronto