Dennis T. Ko

18.8k citations

354 papers · 12.0k indexed · 3 hit papers · h-index 52

Impact in

Cardiology and Cardiovascular Medicine top 0.1%
- Acute Myocardial Infarction Research
- Heart Failure Treatment and Management
- Cardiac Valve Diseases and Treatments
- Antiplatelet Therapy and Cardiovascular Diseases
Family Practice top 1%

Papers in

Cardiology and Cardiovascular Medicine 255
- Acute Myocardial Infarction Research 105
- Heart Failure Treatment and Management 54
- Atrial Fibrillation Management and Outcomes 41
- Cardiac Valve Diseases and Treatments 32
Internal Medicine 15

Co-authors: Jack V. Tu Peter C. Austin Harindra C. Wijeysundera David A. Alter Harlan M. Krumholz Duminda N. Wijeysundera Muhammad Mamdani Howard M. Clarke
Journals: Canadian Journal of Cardiology (44 papers)Journal of the American Heart Association (28 papers)American Heart Journal (25 papers)Circulation Cardiovascular Quality and Outcomes (22 papers)Circulation (17 papers)
Partner nations: Canada United States United Kingdom

In The Last Decade

Dennis T. Ko

335 papers receiving 11.6k citations

Hit Papers

align trajectories log scale

Acute Myocardial Infarction after Laboratory-Confirmed Influenza Infection 2018 · 773 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2018 New England Journal of Medicine
2014 BMJ
2009 Canadian Medical Association Journal

Peers

Countries citing papers authored by Dennis T. Ko

Since Specialization

Citations

This map shows the geographic impact of Dennis T. Ko's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Dennis T. Ko with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Dennis T. Ko more than expected).

Fields of papers citing papers by Dennis T. Ko

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Dennis T. Ko. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Dennis T. Ko. The network helps show where Dennis T. Ko may publish in the future.

Co-authors

The 25 scholars most cited alongside Dennis T. Ko, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Dennis T. Ko Line = papers co-authored together Dennis T. Ko links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Perspective on the Choice and Duration of Dual Antiplatelet Therapy Recommendations in the 2025 Acute Coronary Syndrome Management Guideline Journal of the American College of Cardiology ·Dennis T. Ko, Rasha Al‐Lamee, Behnood Bikdeli, David J. Cohen, James L. Januzzi, Mitsuaki Sawano, Erica S. Spatz, Seng Chan You	2025	0
2	The association between physician sex and patient outcomes: a systematic review and meta-analysis BMC Health Services Research ·Kiyan Heybati, Ashton Chang, Hodan Mohamud, Raj Satkunasivam, Natalie Coburn, Arghavan Salles, Yusuke Tsugawa, Ryo Ikesu, Natsumi Saka, Allan S. Detsky, Dennis T. Ko, Heather J. Ross, Mamas A. Mamas, Angela Jerath, Christopher J.D. Wallis	2025	1
3	Bleeding and New Malignancy Diagnoses After Anticoagulation for Atrial Fibrillation: A Population-Based Cohort Study Circulation ·Kavi Grewal, Xuesong Wang, Peter C. Austin, Cynthia A. Jackevicius, Inbar Nardi-Admon, Dennis T. Ko, Douglas S. Lee, Paaladinesh Thavendiranathan, Michael G. Fradley, Paul Dorian, Husam Abdel‐Qadir	2025	2
4	Implications of five different risk models in primary prevention guidelines European Heart Journal - Quality of Care and Clinical Outcomes ·Maneesh Sud, Atul Sivaswamy, Peter C. Austin, Husam Abdel‐Qadir, Todd J. Anderson, David Naimark, Douglas S. Lee, Idan Roifman, George Thanassoulis, Karen Tu, Harindra C. Wijeysundera, Dennis T. Ko	2024	2
5	High-Sensitivity Cardiac Troponin I for Long-Term Cardiovascular Risk Stratification in a Cancer Clinic Population JACC CardioOncology ·Peter A. Kavsak, Joshua O. Cerasuolo, David H. Kirkwood, Richard Perez, Hsien Seow, Jinhui Ma, Andrew Worster, Dennis T. Ko, Sukhbinder Dhesy‐Thind, Darryl P. Leong	2024	2
6	Transcatheter Aortic Valve Implantation Wait‐Time Management: Derivation and Validation of the Canadian TAVI Triage Tool (CAN3T) Journal of the American Heart Association ·Rafael N. Miranda, Feng Qiu, Ragavie Manoragavan, Peter C. Austin, David Naimark, Stephen E. Fremes, Dennis T. Ko, Mina Madan, Mamas A. Mamas, Maneesh Sud, Derrick Y. Tam, Harindra C. Wijeysundera	2024	1
7	Noninvasive Cardiac Testing and Cardiovascular Outcomes for Low-Risk Chest Pain in the Emergency Department: A Systematic Review and Meta-Analysis CJC Open ·Chen Yang Kevin Zhang, Aaron Dou, Bhadra U. Pandya, Shrikanth Srinivasan, Chloë Campbell, Janet Tang, William Y. Shi, Saswata Deb, Maneesh Sud, Candace D. McNaughton, Dennis T. Ko	2024	1
8	Association Between Hospital Postoperative Troponin Use and Patient Outcomes After Vascular Surgery Anesthesia & Analgesia ·Paymon Azizi, Duminda N. Wijeysundera, Harindra C. Wijeysundera, Peter C. Austin, Angela Jerath, Ahmed Kayssi, Dennis T. Ko	2023	2
9	Dealing With Nonproportional Hazards in Coronary Revascularisation Studies Canadian Journal of Cardiology ·Lucas C. Godoy, Dennis T. Ko, Michael E. Farkouh, Baiju R. Shah, Peter C. Austin	2023	1
10	Long-term Clinical Outcomes Following Cardiac Stress Testing After Percutaneous Coronary Intervention Canadian Journal of Cardiology ·Akshay Bagai, Mina Madan, Christopher B. Overgaard, Joan Porter, Lu Han, Asim N. Cheema, Andrew T. Yan, Padma Kaul, Shaun G. Goodman, Dennis T. Ko	2023	1
11	Variation in revascularisation use and outcomes of patients in hospital with acute myocardial infarction across six high income countries: cross sectional cohort study BMJ ·Peter Cram, Laura A. Hatfield, Pieter Bakx, Amitava Banerjee, Christina Fu, Michal Gordon, Renaud Heine, Nicole Huang, Dennis T. Ko, Lisa M. Lix, Victor Novack, Laura Pasea, Feng Qiu, Thérèse A. Stukel, C Uyl - de Groot, Lin Yan, Bruce E. Landon	2022	13
12	Variations in Coronary Revascularization Practices and Their Effect on Long‐Term Outcomes Journal of the American Heart Association ·Rodolfo V. Rocha, Xuesong Wang, Stephen E. Fremes, Derrick Y. Tam, Dennis T. Ko, Vladimír Džavík, Edward L. Hannan, Peter C. Austin, Maral Ouzounian, Douglas S. Lee	2022	5
13	Epidemiology of COVID-19 and Its Cardiac and Neurologic Complications Among Chinese and South Asians in Ontario: Waves 1, 2, and 3 CJC Open ·Joseph Chu, Gordon W. Moe, Manav V. Vyas, Robert Chen, Chi-Ming Chow, Milan Gupta, Yosuf Kaliwal, Maria Koh, Dennis T. Ko, Peter P. Liu	2022	0
14	Predictors of mortality among long‐term care residents with SARS‐CoV ‐2 infection Journal of the American Geriatrics Society ·Douglas S. Lee, Shihao Ma, Anna Chu, Chloe X. Wang, Xuesong Wang, Peter C. Austin, Finlay A. McAlister, Sunil V. Kalmady, Moira K. Kapral, Padma Kaul, Dennis T. Ko, Paula A. Rochon, Michael J. Schull, Barry B. Rubin, Bo Wang	2021	22
15	Sex-Specific Clinical Outcomes of the PACT-HF Randomized Trial Circulation Heart Failure ·Harriette G.C. Van Spall, Ersilia M. DeFilippis, Shun Fu Lee, Urun Erbas Oz, Richard Perez, Jeff S. Healey, Larry A. Allen, Adriaan A. Voors, Dennis T. Ko, Lehana Thabane, Stuart J. Connolly	2021	13
16	Diagnostic Performance of Serial High-Sensitivity Cardiac Troponin Measurements in the Emergency Setting Journal of Cardiovascular Development and Disease ·Peter A. Kavsak, Mark Hewitt, Shawn Mondoux, Joshua O. Cerasuolo, Jinhui Ma, Natasha Clayton, Matthew McQueen, Lauren E. Griffith, Richard Perez, Hsien Seow, Craig Ainsworth, Dennis T. Ko, Andrew Worster	2021	7
17	Risk Stratification for Patients with Chest Pain Discharged Home from the Emergency Department Journal of Clinical Medicine ·Peter A. Kavsak, Joshua O. Cerasuolo, Shawn Mondoux, Jonathan Sherbino, Jinhui Ma, Brock Hoard, Richard Perez, Hsien Seow, Dennis T. Ko, Andrew Worster	2020	4
18	Acute Myocardial Infarction after Laboratory-Confirmed Influenza Infection New England Journal of Medicine ·Jeffrey C. Kwong, Kevin L. Schwartz, Michael A. Campitelli, Hannah Chung, Natasha S. Crowcroft, Timothy Karnauchow, Kevin Katz, Dennis T. Ko, Allison McGeer, Dayre McNally, David Richardson, Laura C. Rosella, Andrew E. Simor, Marek Smieja, George Zahariadis, Jonathan B. Gubbay Hit paper breakdown →	2018	773
19	Abstract 14128: Predictors of Long-Term Mortality for Survivors of Out-Of-Hospital Cardiac Arrest Circulation ·Mony Shuvy, Laurie J. Morrison, Damon C. Scales, Harindra C. Wijeysundera, Feng Qiu, Paul Dorian, Richard P Verbeek, Jason E. Buick, Jack V. Tu, Maria Koh, Dennis T. Ko	2015	1
20	Temporal Trends in the Use of Percutaneous Coronary Intervention and Coronary Artery Bypass Surgery in New York State and Ontario Circulation ·Dennis T. Ko, Jack V. Tu, Zaza Samadashvili, Helen Guo, David A. Alter, Warren J. Cantor, Edward L. Hannan	2010	55

About Dennis T. Ko

Dennis T. Ko is a scholar working on Cardiology and Cardiovascular Medicine, Internal Medicine, Emergency Medicine, Family Practice and Radiology, Nuclear Medicine and Imaging, having authored 354 papers that have together received 12.0k indexed citations. Recurring topics across this work include Acute Myocardial Infarction Research (105 papers), Cardiac Imaging and Diagnostics (66 papers), Heart Failure Treatment and Management (54 papers), Coronary Interventions and Diagnostics (54 papers), Health Systems, Economic Evaluations, Quality of Life (50 papers), Atrial Fibrillation Management and Outcomes (41 papers), Lipoproteins and Cardiovascular Health (32 papers) and Cardiac Valve Diseases and Treatments (32 papers). The work is most often cited by research in Cardiology and Cardiovascular Medicine (6.7k citations), Family Practice (238 citations), Emergency Medicine (1.1k citations), Geriatrics and Gerontology (410 citations) and Anesthesiology and Pain Medicine (583 citations). Dennis T. Ko has collaborated with scholars based in Canada, United States and United Kingdom. Frequent co-authors include Jack V. Tu, Peter C. Austin, Harindra C. Wijeysundera, David A. Alter, Harlan M. Krumholz, Duminda N. Wijeysundera, Muhammad Mamdani, Howard M. Clarke, Yun Lü and Douglas S. Lee. Their work appears in journals such as Canadian Journal of Cardiology, Journal of the American Heart Association, American Heart Journal, Circulation Cardiovascular Quality and Outcomes and Circulation.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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