World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
75
Citations
48359
World Ranking
18956
National Ranking
1713

Ajay K. Kakkar publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where Ajay K. Kakkar sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 611 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 234 publications — 6th percentile

6% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

Ajay K. Kakkar D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where Ajay K. Kakkar sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 400 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 75 D-Index — 6th percentile

6% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Overview

Ajay K. Kakkar is affiliated with University College London in the United Kingdom and has an extensive publication record in the field of medicine, focusing notably on cardiology and cardiovascular medicine. Their research spans multiple subfields including internal medicine, surgery, epidemiology, and electrical and electronic engineering.

Their work covers several primary topics related to cardiovascular health and disease management:

  • Atrial Fibrillation Management and Outcomes
  • Venous Thromboembolism Diagnosis and Management
  • Cardiac Arrhythmias and Treatments
  • Acute Ischemic Stroke Management
  • Antiplatelet Therapy and Cardiovascular Diseases
  • Diagnosis and Treatment of Venous Diseases
  • Health Systems, Economic Evaluations, Quality of Life

Ajay K. Kakkar has worked collaboratively with frequent co-authors including Sylvia Haas, Shinya Goto, Karen S. Pieper, Samuel Z. Goldhaber, and Saverio Virdone. These collaborations underscore a strong network within cardiovascular and thrombosis research communities.

Their research appears regularly in specialized journals and venues, with multiple publications in:

  • Thrombosis Research
  • Journal of Thrombosis and Haemostasis
  • Open Heart
  • Research and Practice in Thrombosis and Haemostasis
  • The American Journal of Medicine

Recent notable papers authored or co-authored by Ajay K. Kakkar demonstrate a focus on venous thromboembolism, anticoagulant therapy, and related cardiovascular complications. Key papers include:

  • "2022 international clinical practice guidelines for the treatment and prophylaxis of venous thromboembolism in patients with cancer, including patients with COVID-19" (2022, The Lancet Oncology)
  • "Venous Thromboembolism Prophylaxis and Treatment in Patients With Cancer: ASCO Guideline Update" (2023, Journal of Clinical Oncology)
  • "Mortality in Patients With Atrial Fibrillation Receiving Nonrecommended Doses of Direct Oral Anticoagulants" (2020, Journal of the American College of Cardiology)
  • "Cancer associated thrombosis in everyday practice: perspectives from GARFIELD-VTE" (2020, Journal of Thrombosis and Thrombolysis)
  • "Development and Validation of the DOAC Score: A Novel Bleeding Risk Prediction Tool for Patients With Atrial Fibrillation on Direct-Acting Oral Anticoagulants" (2023, Circulation)

Best Publications

  • Dabigatran versus warfarin in the treatment of acute venous thromboembolism

    Sam Schulman;Clive Kearon;Ajay K. Kakkar;Patrick Mismetti

  • Low-Molecular-Weight Heparin versus a Coumarin for the Prevention of Recurrent Venous Thromboembolism in Patients with Cancer

    Agnes Y.Y. Lee;Mark N. Levine;Ross I. Baker;Chris Bowden

  • Rivaroxaban versus enoxaparin for thromboprophylaxis after hip arthroplasty

    Bengt I. Eriksson;Lars C. Borris;Richard J. Friedman;Sylvia Haas

  • Venous thromboembolism risk and prophylaxis in the acute hospital care setting (ENDORSE study): a multinational cross-sectional study.

    Alexander T Cohen;Victor F Tapson;Jean-Francois Bergmann;Samuel Z Goldhaber

  • Venous thromboembolism (VTE) in Europe - The number of VTE events and associated morbidity and mortality

    Alexander T. Cohen;Giancarlo Agnelli;Frederick A. Anderson;Juan I. Arcelus

  • Edoxaban for the Treatment of Cancer-Associated Venous Thromboembolism

    Gary E. Raskob;Nick van Es;Peter Verhamme;Marc Carrier

  • Extended duration rivaroxaban versus short-term enoxaparin for the prevention of venous thromboembolism after total hip arthroplasty: a double-blind, randomised controlled trial

    Ajay K. Kakkar;Benjamin Brenner;Ola E. Dahl;Bengt I. Eriksson

  • Extended Use of Dabigatran, Warfarin, or Placebo in Venous Thromboembolism

    Sam Schulman;Clive Kearon;Ajay K. Kakkar;Sebastian Schellong

  • American Society of Clinical Oncology Guideline: Recommendations for Venous Thromboembolism Prophylaxis and Treatment in Patients With Cancer

    Gary H. Lyman;Alok A. Khorana;Anna Falanga;Daniel Clarke-Pearson

  • Venous Thromboembolism Prophylaxis and Treatment in Patients With Cancer: ASCO Clinical Practice Guideline Update

    Nigel S Key;Alok A Khorana;Nicole M Kuderer;Kari Bohlke

  • Thrombosis A Major Contributor to Global Disease Burden

    G.E. Raskob;P. Angchaisuksiri;A.N. Blanco;H. Buller

  • Comparison of an Oral Factor Xa Inhibitor With Low Molecular Weight Heparin in Patients With Cancer With Venous Thromboembolism: Results of a Randomized Trial (SELECT-D)

    Annie M. Young;Andrea Marshall;Jenny Thirlwall;Oliver Chapman

  • Venous Thromboembolism Prophylaxis and Treatment in Patients With Cancer: American Society of Clinical Oncology Clinical Practice Guideline Update 2014

    Gary H. Lyman;Gary H. Lyman;Kari Bohlke;Alok A. Khorana;Nicole M. Kuderer

  • Treatment of Acute Venous Thromboembolism With Dabigatran or Warfarin and Pooled Analysis

    Sam Schulman;Ajay K. Kakkar;Samuel Z. Goldhaber;Sebastian Schellong

  • Low molecular weight heparin, therapy with dalteparin, and survival in advanced cancer: the fragmin advanced malignancy outcome study (FAMOUS).

    Ajay K. Kakkar;Mark N. Levine;Zbigniew Kadziola;Nicholas R. Lemoine

  • Rivaroxaban or Aspirin for Extended Treatment of Venous Thromboembolism

    Jeffrey I. Weitz;Anthonie W.A. Lensing;Martin H. Prins;Rupert Bauersachs

  • Apixaban versus Enoxaparin for Thromboprophylaxis in Medically Ill Patients

    Samuel Z. Goldhaber;Alain Leizorovicz;Ajay K. Kakkar;Sylvia K. Haas

  • International clinical practice guidelines for the treatment and prophylaxis of venous thromboembolism in patients with cancer

    D Farge;P Debourdeau;M Beckers;C Baglin

  • Randomized Comparison of Low Molecular Weight Heparin and Coumarin Derivatives on the Survival of Patients With Cancer and Venous Thromboembolism

    Agnes Y.Y. Lee;Frederick R. Rickles;Jim A. Julian;Michael Gent

  • Venous thromboembolism prophylaxis in acutely ill hospitalized medical patients: findings from the International Medical Prevention Registry on Venous Thromboembolism.

    Victor F. Tapson;Hervé Decousus;Mario Pini;Beng H. Chong

Frequent Co-Authors

Samuel Z. Goldhaber
Samuel Z. Goldhaber Brigham and Women's Hospital
Alexander G.G. Turpie
Alexander G.G. Turpie McMaster University
Shinya Goto
Shinya Goto Tokai University
Paolo Prandoni
Paolo Prandoni University of Padua
Jeffrey I. Weitz
Jeffrey I. Weitz McMaster University
Mark Levine
Mark Levine McMaster University
Henri Bounameaux
Henri Bounameaux University of Geneva
Sam Schulman
Sam Schulman McMaster University
Bengt I. Eriksson
Bengt I. Eriksson University of Gothenburg
Gary E. Raskob
Gary E. Raskob University of Oklahoma Health Sciences Center

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