World's Best Scientists 2026 revealed!
Karen P. Alexander

Karen P. Alexander

D-Index & Metrics

Medicine

D-Index
90
Citations
37096
World Ranking
12058
National Ranking
6187

Karen P. Alexander 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 Karen P. Alexander 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: 420 publications — 43rd percentile

43% of scientists in this discipline score the same or lower.

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

Karen P. Alexander 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 Karen P. Alexander 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: 90 D-Index — 41st percentile

41% of scientists in this discipline score the same or lower.

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

Overview

Karen P. Alexander is affiliated with Duke University in the United States. Their research primarily focuses on Medicine, with notable subfields in Cardiology and Cardiovascular Medicine, Radiology, Nuclear Medicine and Imaging, Economics and Econometrics, Surgery, and Geriatrics and Gerontology.

The scientist's work spans several main topics related to cardiovascular health and medical evaluation, including:

  • Cardiac Imaging and Diagnostics
  • Health Systems, Economic Evaluations, Quality of Life
  • Acute Myocardial Infarction Research
  • Cardiac, Anesthesia and Surgical Outcomes
  • Coronary Interventions and Diagnostics
  • Antiplatelet Therapy and Cardiovascular Diseases
  • Cardiac Health and Mental Health

Frequent publication venues for their research include:

  • Journal of the American College of Cardiology
  • Circulation
  • Journal of the American Geriatrics Society
  • JACC Advances
  • New England Journal of Medicine

Among recent published papers are:

  • Initial Invasive or Conservative Strategy for Stable Coronary Disease, 2020, New England Journal of Medicine
  • Sarcopenia and Cardiovascular Diseases, 2023, Circulation
  • Management of Coronary Disease in Patients with Advanced Kidney Disease, 2020, New England Journal of Medicine
  • Health-Status Outcomes with Invasive or Conservative Care in Coronary Disease, 2020, New England Journal of Medicine
  • Management of Acute Coronary Syndrome in the Older Adult Population: A Scientific Statement From the American Heart Association, 2022, Circulation

The scientist has collaborated frequently with a core group of co-authors, including:

  • David J. Maron
  • Judith S. Hochman
  • Harmony R. Reynolds
  • Sripal Bangalore
  • Gregg W. Stone

Best Publications

  • Initial invasive or conservative strategy for stable coronary disease.

    David J. Maron;Judith S. Hochman;Harmony R. Reynolds;Sripal Bangalore

  • Albiglutide and cardiovascular outcomes in patients with type 2 diabetes and cardiovascular disease (Harmony Outcomes): a double-blind, randomised placebo-controlled trial

    Adrian F Hernandez;Jennifer B Green;Salim Janmohamed;Ralph B D'Agostino

  • 2012 ACCF/AATS/SCAI/STS Expert Consensus Document on Transcatheter Aortic Valve Replacement

    David R. Holmes;Michael J. Mack;Sanjay Kaul;Arvind Agnihotri

  • 2014 ACC/AHA/AATS/PCNA/SCAI/STS Focused Update of the Guideline for the Diagnosis and Management of Patients With Stable Ischemic Heart Disease : A Report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines, and the American Association for Thoracic Surgery, Preventive Cardiovascular Nurses Association, Society for Cardiovascular Angiography and Interventions, and Society of Thoracic Surgeons

    Stephan D. Fihn;James C. Blankenship;Karen P. Alexander;John A. Bittl

  • Baseline Risk of Major Bleeding in Non–ST-Segment–Elevation Myocardial Infarction The CRUSADE (Can Rapid risk stratification of Unstable angina patients Suppress ADverse outcomes with Early implementation of the ACC/AHA guidelines) Bleeding Score

    Sumeet Subherwal;Richard G. Bach;Anita Y. Chen;Brian F. Gage

  • Acute coronary care in the elderly, part I: Non-ST-segment-elevation acute coronary syndromes: a scientific statement for healthcare professionals from the American Heart Association Council on Clinical Cardiology: in collaboration with the Society of Geriatric Cardiology.

    Karen P. Alexander;L. Kristin Newby;Christopher P. Cannon;Paul W. Armstrong

  • Frailty Assessment in the Cardiovascular Care of Older Adults

    Jonathan Afilalo;Karen Patton Alexander;Michael J. Mack;Mathew S. Maurer

  • Representation of Elderly Persons and Women in Published Randomized Trials of Acute Coronary Syndromes

    Patrick Y. Lee;Karen P. Alexander;Bradley G. Hammill;Sara K. Pasquali

  • Gait speed as an incremental predictor of mortality and major morbidity in elderly patients undergoing cardiac surgery.

    Jonathan Afilalo;Mark J. Eisenberg;Jean François Morin;Howard Bergman;Howard Bergman

  • Outcomes of cardiac surgery in patients age ≥80 years: results from the National Cardiovascular Network

    Karen P Alexander;Kevin J Anstrom;Lawrence H Muhlbaier;Ralph D Grosswald

  • Role of frailty in patients with cardiovascular disease.

    Jonathan Afilalo;Sathya Karunananthan;Mark J. Eisenberg;Karen P. Alexander

  • Excess Dosing of Antiplatelet and Antithrombin Agents in the Treatment of Non-ST-Segment Elevation Acute Coronary Syndromes

    Karen P. Alexander;Anita Y. Chen;Matthew T. Roe;L. Kristin Newby

  • 2017 ACC Expert Consensus Decision Pathway for Transcatheter Aortic Valve Replacement in the Management of Adults With Aortic Stenosis: A Report of the American College of Cardiology Task Force on Clinical Expert Consensus Documents

    Catherine M. Otto;Dharam J. Kumbhani;Karen P. Alexander;John H. Calhoon

  • Use of Evidence-Based Therapies in Short-Term Outcomes of ST-Segment Elevation Myocardial Infarction and Non–ST-Segment Elevation Myocardial Infarction in Patients With Chronic Kidney Disease A Report From the National Cardiovascular Data Acute Coronary Treatment and Intervention Outcomes Network Registry

    Caroline S. Fox;Paul Muntner;Anita Y. Chen;Karen P. Alexander

  • Cardiovascular Health: The Importance of Measuring Patient-Reported Health Status A Scientific Statement From the American Heart Association

    John S. Rumsfeld;Karen P. Alexander;David C. Goff;Michelle M. Graham

  • Acute coronary care in the elderly, Part II ST-segment-elevation myocardial infarction a scientific statement for healthcare professionals from the american heart association council on clinical cardiology

    Karen P. Alexander;L. Kristin Newby;Paul W. Armstrong;Christopher P. Cannon

  • Addition of Frailty and Disability to Cardiac Surgery Risk Scores Identifies Elderly Patients at High Risk of Mortality or Major Morbidity

    Jonathan Afilalo;Salvatore Mottillo;Mark J. Eisenberg;Karen Patton Alexander

  • Identifying frailty in hospitalized older adults with significant coronary artery disease.

    Jama L. Purser;Maragatha N. Kuchibhatla;Gerda G. Fillenbaum;Tina Harding

  • Evolution in cardiovascular care for elderly patients with non-ST-segment elevation acute coronary syndromes: Results from the CRUSADE National Quality Improvement Initiative

    Karen P. Alexander;Matthew T. Roe;Anita Y. Chen;Barbara L. Lytle

  • Management of Coronary Disease in Patients with Advanced Kidney Disease

    Sripal Bangalore;David J. Maron;Sean M. O’Brien;Jerome L. Fleg

Frequent Co-Authors

Matthew T. Roe
Matthew T. Roe Duke University
Eric D. Peterson
Eric D. Peterson The University of Texas Southwestern Medical Center
E. Magnus Ohman
E. Magnus Ohman Duke University
John A. Spertus
John A. Spertus University of Missouri–Kansas City
Renato D. Lopes
Renato D. Lopes Duke University
L. Kristin Newby
L. Kristin Newby Duke University
Judith S. Hochman
Judith S. Hochman New York University
W. Brian Gibler
W. Brian Gibler University of Cincinnati
Harvey D. White
Harvey D. White Auckland City Hospital
Frederick A. Masoudi
Frederick A. Masoudi University of Colorado Anschutz Medical Campus

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