Theodore E. Warkentin

39.9k total citations · 13 hit papers
326 papers, 25.1k citations indexed

About

Theodore E. Warkentin is a scholar working on Surgery, Hematology and Internal Medicine. According to data from OpenAlex, Theodore E. Warkentin has authored 326 papers receiving a total of 25.1k indexed citations (citations by other indexed papers that have themselves been cited), including 267 papers in Surgery, 175 papers in Hematology and 161 papers in Internal Medicine. Recurrent topics in Theodore E. Warkentin's work include Heparin-Induced Thrombocytopenia and Thrombosis (263 papers), Platelet Disorders and Treatments (167 papers) and Venous Thromboembolism Diagnosis and Management (161 papers). Theodore E. Warkentin is often cited by papers focused on Heparin-Induced Thrombocytopenia and Thrombosis (263 papers), Platelet Disorders and Treatments (167 papers) and Venous Thromboembolism Diagnosis and Management (161 papers). Theodore E. Warkentin collaborates with scholars based in Canada, United States and Germany. Theodore E. Warkentin's co-authors include Andreas Greinacher, John G. Kelton, Jo‐Ann I. Sheppard, Peter Horsewood, Jane C. Moore, Jack Hirsh, J. G. Kelton, Mark Crowther, Robin S. Roberts and Christopher Sigouin and has published in prestigious journals such as New England Journal of Medicine, The Lancet and Journal of Biological Chemistry.

In The Last Decade

Theodore E. Warkentin

317 papers receiving 24.2k citations

Hit Papers

Heparin-Induced Thrombocy... 1995 2026 2005 2015 1995 2021 1996 2006 2001 500 1000 1.5k
What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

  1. Heparin-Induced Thrombocytopenia in Patients Treated with Low-Molecular-Weight Heparin or Unfractionated Heparin
    1995 1.7k citations Theodore E. Warkentin, Peter Horsewood et al. profile →
  2. Thrombotic Thrombocytopenia after ChAdOx1 nCov-19 Vaccination
    2021 1.4k citations Andreas Greinacher, Thomas Thiele et al. profile →
  3. A 14-year study of heparin-induced thrombocytopenia
    1996 677 citations Theodore E. Warkentin, John G. Kelton profile →
  4. Evaluation of pretest clinical score (4 T's) for the diagnosis of heparin‐induced thrombocytopenia in two clinical settings
    2006 675 citations Theodore E. Warkentin, Andreas Greinacher et al. Journal of Thrombosis and Haemostasis profile →
  5. Temporal Aspects of Heparin-Induced Thrombocytopenia
    2001 663 citations Theodore E. Warkentin et al. profile →
  6. Impact of the patient population on the risk for heparin-induced thrombocytopenia
    2000 646 citations Theodore E. Warkentin, Jo‐Ann I. Sheppard et al. Blood profile →
  7. Treatment and Prevention of Heparin-Induced Thrombocytopenia
    2008 568 citations Theodore E. Warkentin, Andreas Greinacher et al. profile →
  8. Heparin-Induced Thrombocytopenia: Recognition, Treatment, and Prevention
    2004 550 citations Theodore E. Warkentin, Andreas Greinacher profile →
  9. American Society of Hematology 2018 guidelines for management of venous thromboembolism: heparin-induced thrombocytopenia
    2018 411 citations Adam Cuker, Beng H. Chong et al. Blood Advances profile →
  10. Diagnosis and management of sepsis‐induced coagulopathy and disseminated intravascular coagulation
    2019 330 citations Toshiaki Iba, Jerrold H. Levy et al. Journal of Thrombosis and Haemostasis profile →
  11. The unique characteristics of COVID-19 coagulopathy
    2020 329 citations Toshiaki Iba, Jerrold H. Levy et al. profile →
  12. Autoimmune heparin‐induced thrombocytopenia
    2017 271 citations Andreas Greinacher, Theodore E. Warkentin et al. Journal of Thrombosis and Haemostasis profile →
  13. Adjunct Immune Globulin for Vaccine-Induced Immune Thrombotic Thrombocytopenia
    2021 128 citations Donald M. Arnold, Theodore E. Warkentin et al. profile →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author Last Decade Papers Cites
Theodore E. Warkentin 18.7k 11.7k 10.3k 9.0k 5.3k 326 25.1k
Andreas Greinacher 13.9k 0.7× 8.0k 0.7× 9.7k 0.9× 6.5k 0.7× 3.9k 0.7× 463 22.0k
Beverley J. Hunt 4.7k 0.3× 4.5k 0.4× 5.7k 0.6× 3.3k 0.4× 3.4k 0.7× 340 19.3k
John G. Kelton 7.6k 0.4× 4.7k 0.4× 9.2k 0.9× 3.5k 0.4× 2.2k 0.4× 236 16.3k
Jerrold H. Levy 6.2k 0.3× 4.6k 0.4× 3.4k 0.3× 2.2k 0.2× 6.8k 1.3× 472 23.6k
Thomas L. Ortel 4.1k 0.2× 5.5k 0.5× 5.3k 0.5× 960 0.1× 4.9k 0.9× 277 15.5k
John A. Heit 9.3k 0.5× 23.7k 2.0× 6.5k 0.6× 1.1k 0.1× 15.2k 2.9× 220 30.9k
Harry R. Büller 8.6k 0.5× 24.6k 2.1× 8.2k 0.8× 634 0.1× 18.6k 3.5× 450 35.7k
Hugo Ten Cate 3.3k 0.2× 5.5k 0.5× 7.7k 0.7× 761 0.1× 5.6k 1.1× 568 21.5k
Lawrence T. Goodnough 3.3k 0.2× 1.4k 0.1× 9.0k 0.9× 1.4k 0.2× 2.3k 0.4× 305 20.6k
David Bergqvist 11.8k 0.6× 14.2k 1.2× 3.0k 0.3× 884 0.1× 12.8k 2.4× 741 27.7k

Countries citing papers authored by Theodore E. Warkentin

Since Specialization
Citations

This map shows the geographic impact of Theodore E. Warkentin'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 Theodore E. Warkentin with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Theodore E. Warkentin more than expected).

Fields of papers citing papers by Theodore E. Warkentin

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Theodore E. Warkentin. 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 Theodore E. Warkentin. The network helps show where Theodore E. Warkentin may publish in the future.

Co-authorship network of co-authors of Theodore E. Warkentin

This figure shows the co-authorship network connecting the top 25 collaborators of Theodore E. Warkentin. A scholar is included among the top collaborators of Theodore E. Warkentin based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Theodore E. Warkentin. Theodore E. Warkentin is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Pai, Menaka, et al.. (2025). Profound Thrombocytopenia and Dyspnea 11 Days After Cardiac Surgery. American Journal of Hematology. 100(7). 1234–1239. 1 indexed citations
2.
Lambert, Michele P. & Theodore E. Warkentin. (2024). Mini-clusters of postadenovirus VITT. Research and Practice in Thrombosis and Haemostasis. 9(1). 102641–102641. 4 indexed citations
3.
Warkentin, Theodore E.. (2023). Heparin-induced thrombocytopenia (and autoimmune heparin-induced thrombocytopenia): an illustrious review. Research and Practice in Thrombosis and Haemostasis. 7(8). 102245–102245. 4 indexed citations
4.
Greinacher, Andreas & Theodore E. Warkentin. (2023). Thrombotic anti-PF4 immune disorders: HIT, VITT, and beyond. Hematology. 2023(1). 1–10. 22 indexed citations
5.
Ning, Shuoyan, Na Li, Yang Liu, et al.. (2023). An evaluation of the clinical impacts of 7‐day platelets. Transfusion. 63(3). 480–493. 3 indexed citations
6.
Schönborn, Linda, Thomas Thiele, Jan Wesche, et al.. (2022). Quantitative interpretation of PF4/heparin‐EIA optical densities in predicting platelet‐activating VITT antibodies. Journal of Thrombosis and Haemostasis. 20(11). 2579–2586. 14 indexed citations
7.
Iba, Toshiaki, Jerrold H. Levy, Jean M. Connors, et al.. (2021). Managing thrombosis and cardiovascular complications of COVID-19: answering the questions in COVID-19-associated coagulopathy. Expert Review of Respiratory Medicine. 15(8). 1003–1011. 12 indexed citations
8.
9.
Skeith, Leslie, Lisa Baumann Kreuziger, Mark Crowther, & Theodore E. Warkentin. (2020). A practical approach to evaluating postoperative thrombocytopenia. Blood Advances. 4(4). 776–783. 32 indexed citations
10.
Thachil, Jecko, Nicole P. Juffermans, Marco Ranucci, et al.. (2020). ISTH DIC subcommittee communication on anticoagulation in COVID‐19. Journal of Thrombosis and Haemostasis. 18(9). 2138–2144. 50 indexed citations
11.
Morgan, Rebecca L., Vahid Ashoorion, Adam Cuker, et al.. (2020). Management of heparin-induced thrombocytopenia: systematic reviews and meta-analyses. Blood Advances. 4(20). 5184–5193. 14 indexed citations
12.
Warkentin, Theodore E. & Scott Kaatz. (2020). COVID-19 versus HIT hypercoagulability. Thrombosis Research. 196. 38–51. 30 indexed citations
13.
Krauel, Krystin, Theodore E. Warkentin, Sven Van Brandt, et al.. (2018). Fibronectin modulates formation of PF4/heparin complexes and is a potential factor for reducing risk of developing HIT. Blood. 133(9). 978–989. 15 indexed citations
14.
Warkentin, Theodore E. & David Rosenbloom. (2018). Heparin-Induced Thrombocytopenia. The Canadian Journal of Hospital Pharmacy. 52(6). 1 indexed citations
15.
Warkentin, Theodore E., Menaka Pai, & Lori‐Ann Linkins. (2017). Direct oral anticoagulants for treatment of HIT: update of Hamilton experience and literature review. Blood. 130(9). 1104–1113. 117 indexed citations
16.
17.
Warkentin, Theodore E. & Jo‐Ann I. Sheppard. (2014). Serological investigation of patients with a previous history of heparin-induced thrombocytopenia who are reexposed to heparin. Blood. 123(16). 2485–2493. 62 indexed citations
18.
Warkentin, Theodore E.. (2002). Platelet Count Monitoring and Laboratory Testing for Heparin-Induced Thrombocytopenia Recommendations of the College of American Pathologists. Archives of Pathology & Laboratory Medicine. 126(11). 1415–1423. 28 indexed citations
19.
Hughes, Mary J., Catherine P.M. Hayward, Theodore E. Warkentin, et al.. (2000). Morphological analysis of microparticle generation in heparin-induced thrombocytopenia. Blood. 96(1). 188–194. 165 indexed citations
20.
Warkentin, Theodore E.. (1998). Limitations of conventional treatment options for heparin-induced thrombocytopenia.. PubMed. 35(4 Suppl 5). 17–25; discussion 35. 44 indexed citations

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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