Mark Peterson




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I am interested in the clinical outcomes of patients with a wide range of aortic disease, including aortic valvular disease, following both conventional surgery as well as endovascular or percutaneous intervention. St. Michael’s Hospital participates in the International Registry of Acute Aortic Dissection study, which prospectively collects data on patients with either Type A or Type B dissections in 24 centers around the world. We are in the process of developing a National Aortic and Endovascular Surgery Registry to prospectively study patients undergoing either conventional surgery or endovascular surgery in major centers across Canada. I am also interested in the basic biology of aneurysm formation and aneurysm regression following endovascular stent-grafting.

Recent Publications

  1. Mazine, A, Chu, MWA, El-Hamamsy, I, Peterson, MD. Valve-sparing aortic root replacement: a primer for cardiologists. Curr Opin Cardiol. 2022; :. doi: 10.1097/HCO.0000000000000951. PubMed PMID:35058413 .
  2. Fukunaga, N, Peterson, MD. A pulsatile abdominal mass as a sign of recurrent left ventricular pseudoaneurysm. Asian Cardiovasc Thorac Ann. 2021; :2184923211069191. doi: 10.1177/02184923211069191. PubMed PMID:34931865 .
  3. Mazine, A, Dhingra, NK, Chu, MWA, El-Hamamsy, I, Peterson, MD. Aortic Arch Replacement: How I Teach It. Ann Thorac Surg. 2021; :. doi: 10.1016/j.athoracsur.2021.11.035. PubMed PMID:34929142 .
  4. Vervoort, D, El-Hamamsy, I, Chu, MWA, Peterson, MD, Ouzounian, M. The Ross procedure and valve-sparing root replacement procedures in the adult patient: do guidelines follow the evidence?. Ann Cardiothorac Surg. 2021;10 (4):433-443. doi: 10.21037/acs-2021-rp-24. PubMed PMID:34422555 PubMed Central PMC8339635.
  5. Fukunaga, N, Peterson, MD. Anomalous left circumflex artery: Implications for valve-sparing root replacement. JTCVS Tech. 2021;7 :146-148. doi: 10.1016/j.xjtc.2021.01.031. PubMed PMID:34318230 PubMed Central PMC8311588.
  6. Ouzounian, M, Chu, MWA, Peterson, MD, El-Hamamsy, I, Canadian Thoracic Aortic Collaborative (CTAC). Commentary: Aortic annuloplasty: One size does not fit all. JTCVS Tech. 2021;7 :103-104. doi: 10.1016/j.xjtc.2021.01.016. PubMed PMID:34318216 PubMed Central PMC8311448.
  7. Hage, A, Peterson, MD, Ouzounian, M, El-Hamamsy, I, Dagenais, F, Chu, MWA et al.. Commentary: The elephant in the room: Routine arch repair for acute dissection?. JTCVS Tech. 2021;6 :50-51. doi: 10.1016/j.xjtc.2020.12.026. PubMed PMID:34318139 PubMed Central PMC8300923.
  8. Hassan, A, Ouzounian, M, Dagenais, F, El-Hamamsy, I, Moon, MC, Pozeg, Z et al.. Development of Quality Indicators for the Management of Acute Type A Aortic Dissection. Can J Cardiol. 2021;37 (10):1635-1638. doi: 10.1016/j.cjca.2021.05.015. PubMed PMID:34090977 .
  9. Hage, A, Hage, F, Dagenais, F, Ouzounian, M, Chung, J, El-Hamamsy, I et al.. Frozen Elephant Trunk for Aortic Arch Reconstruction is Associated with Reduced Mortality as Compared to Conventional Techniques. Semin Thorac Cardiovasc Surg. 2021; :. doi: 10.1053/j.semtcvs.2021.03.049. PubMed PMID:34089828 .
  10. Ghoneim, A, Ouzounian, M, Peterson, MD, El-Hamamsy, I, Dagenais, F, Chu, MWA et al.. Commentary: Timely repair of acute aortic dissection: Every minute counts. J Thorac Cardiovasc Surg. 2021; :. doi: 10.1016/j.jtcvs.2021.04.026. PubMed PMID:33972110 .
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Affiliations & Other Activities

  • Associate Professor, Department of Surgery, University of Toronto