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Hospital / health system · London · United Kingdom

Harefield Hospital

In research, Harefield Hospital stands highest in Medicine (#1,318 of 10,443 worldwide), Health Sciences (#1,863 of 11,982 worldwide) and Cardiology and Cardiovascular Medicine (#328 of 738 worldwide), 2022–2025. Relative to its size it is most specialised in Cardiology and Cardiovascular Medicine, Pulmonary and Respiratory Medicine and Surgery — Cardiology and Cardiovascular Medicine is 20.8× its share of world research.

rbht.nhs.uk/our-hospitals/harefield-hospitalROR OpenAlex
World rank, 2022–2025
#6,952
of 28,054 · #5,427 all time
Rank in United Kingdom
#273
of 1,094
Research works
2.7k
▲ 27% vs 2013–17
Citations
62k
22.9 per fractional work
Top-10% rate
16.4%
record average 16.5%
Open access
38%
world 28%

What is Harefield Hospital known for in research?

The fields where it stands highest, 2022–2025, ranked among every institution above the floor in each field.

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
MedicineField #1,318 of 10,443 16.8%332 #797
Health SciencesDomain #1,863 of 11,982 16.8%342 #1058
Cardiology and Cardiovascular MedicineSubfield #328 of 738 18.3%88 #447
Pulmonary and Respiratory MedicineSubfield #547 of 1,144 17.1%69 #913

Each strip is that field’s whole ranked pool, with the notch where Harefield Hospital sits in it, in the colour of the band that rank falls in. The track under the rate is the rate itself: it carries no world mark, because the world rate differs by field (from about 6% to 21% in this record).

Which of those standings moved

The same fields on both windows: where it stood over the whole record, and where it stands in 2022–2025. The distance is the story, and it is the one thing the two rank columns above cannot show.

  1. Medicine#797 #1,318
  2. Health Sciences#1,058 #1,863
  3. Cardiology and Cardiovascular Medicine#447 #328
  4. Pulmonary and Respiratory Medicine#913 #547
all time2022–2025, better2022–2025, worse

A dot further right is a better standing. Fields it was not ranked in over the whole record are left out.

What does Harefield Hospital specialise in?

Where its research is concentrated relative to its size: Cardiology and Cardiovascular Medicine takes 20.8× the share of its output that it takes of world research.

  1. Cardiology and Cardiovascular MedicineSubfield · 88.1 works21×
  2. Pulmonary and Respiratory MedicineSubfield · 68.6 works11×
  3. SurgerySubfield · 57.7 works6.1×
← less than its size predicts1×more →

Location quotient, a volume reading rather than an impact one. It surfaces small, lopsided specialities.

Field profile

Location quotient across every field it publishes in: outside the ring is more than an institution of this size would be expected to publish, inside it is less.

Agricultural and Biological Sciences: 0.04× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.54× its world share, 12 worksBiochemistry, Geneti…Immunology and Microbiology: 0.85× its world share, 4 worksImmunology and Micro…Neuroscience: 0.38× its world share, 2 worksNeuroscienceChemistry: 0.04× its world share, 0 worksChemistryComputer Science: 0.06× its world share, 2 worksComputer ScienceEngineering: 0.37× its world share, 22 worksEngineeringEnvironmental Science: 0.07× its world share, 2 worksEnvironmental ScienceMaterials Science: 0.12× its world share, 2 worksMaterials ScienceMathematics: 0.04× its world share, 0 worksMathematicsPhysics and Astronomy: 0.15× its world share, 1 worksPhysics and AstronomyDentistry: 0.21× its world share, 0 worksDentistryHealth Professions: 0.82× its world share, 9 worksHealth ProfessionsMedicine: 4.28× its world share, 332 worksMedicineNursing: 0.46× its world share, 1 worksNursingVeterinary: 0.03× its world share, 0 worksVeterinaryArts and Humanities: 0.02× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.12× its world share, 2 worksBusiness, Management…Decision Sciences: 0.16× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.35× its world share, 3 worksEconomics, Econometr…Psychology: 0.17× its world share, 2 worksPsychologySocial Sciences: 0.11× its world share, 6 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Medicine, 4.3×. Every wedge is a field page.

Who are the top researchers at Harefield Hospital?

Ranked on the composite score, R Radley-Smith, David Royston and Paul J.R. Barton lead among researchers whose main affiliation is Harefield Hospital.

  1. 1 R Radley-Smith United Kingdom · #61,668 worldwide 295 citations · 29 works
  2. 2 David Royston United Kingdom · #61,784 worldwide 261 citations · 47 works
  3. 3 Paul J.R. Barton United Kingdom · #102,480 worldwide 204 citations · 33 works
  4. 4 A. Khaghani United Kingdom · #107,662 worldwide 122 citations · 31 works
  5. 5 Gilles Dreyfus United Kingdom · #121,309 worldwide 82 citations · 40 works
  6. 6 Magdi H. Yacoub United Kingdom · #137,552 worldwide 95 citations · 32 works
  7. 7 Margaret Burke United Kingdom · #145,192 worldwide 210 citations · 22 works
  8. 8 Magdi H. Yacoub United Kingdom · #205,428 worldwide 595 citations · 163 works
  9. 9 Emma J. Birks United Kingdom · #254,024 worldwide 121 citations · 52 works
  10. 10 M. H. Yacoub United Kingdom · #287,330 worldwide 84 citations · 20 works
All ranked researchers at Harefield Hospital

Which keywords describe research at Harefield Hospital?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Heart Failure, Myocardial Infarction, Echocardiography, Diagnosis, Guidelines, Percutaneous Coronary Intervention, Management and Cardiac Imaging.

▲ more of its work than of the world’s◆ about the world’s share▼ less than the world’s

Size is fractional works in 2022–2025 in the topics tagged with each word; colour is the word's share of this institution's work against its share of the world's. The 40 words are chosen for being large and distinctive. Each links to the topic it comes from most.

All 40 words, with their numbers
  1. Heart Failure39▲ 22×13 topics
  2. Myocardial Infarction35▲ 37×7 topics
  3. Epidemiology34▲ 2.1×68 topics
  4. Echocardiography33▲ 30×8 topics
  5. Diagnosis26▲ 7.0×21 topics
  6. Guidelines24▲ 13×10 topics
  7. Percutaneous Coronary Intervention22▲ 41×4 topics
  8. Management21▲ 6.7×18 topics
  9. Treatment21▲ 4.2×22 topics
  10. Cardiac Imaging18▲ 37×3 topics
  11. Thrombosis18▲ 16×7 topics
  12. Magnetic Resonance Imaging17▲ 16×5 topics
  13. Dilated Cardiomyopathy16▲ 56×2 topics
  14. Surgical Aortic-Valve Replacement16▲ 54×1 topic
  15. Transcatheter Aortic-Valve Replacement16▲ 54×1 topic
  16. Extracorporeal Membrane Oxygenation15▲ 50×2 topics
  17. Cardiogenic Shock15▲ 78×1 topic
  18. Cardiovascular Disease15▲ 3.3×28 topics
  19. Left Ventricular Assist Device15▲ 78×1 topic
  20. Coronary Artery Disease14▲ 30×3 topics
  21. Obesity14▲ 4.5×14 topics
  22. Congenital Heart Disease13▲ 40×3 topics
  23. Mortality13▲ 5.5×11 topics
  24. Cardiovascular Risk Assessment13▲ 40×2 topics
  25. Radiation Exposure12▲ 31×2 topics
  26. Computed Tomography Angiography12▲ 46×1 topic
  27. Global Burden12▲ 5.7×9 topics
  28. Immunosuppressive Therapy12▲ 16×4 topics
  29. Myocardial Perfusion12▲ 46×1 topic
  30. Surgical Repair11▲ 69×1 topic
  31. Ventricular Reconstruction11▲ 69×1 topic
  32. Transplantation11▲ 28×4 topics
  33. Cardiovascular Risk11▲ 8.6×7 topics
  34. Endovascular Repair11▲ 31×3 topics
  35. Rejection10▲ 63×2 topics
  36. Respiratory10▲ 27×2 topics
  37. COPD10▲ 39×1 topic
  38. spirometry10▲ 39×1 topic
  39. Chamber Quantification10▲ 32×1 topic
  40. Diastolic Function10▲ 32×1 topic

Which research topics does Harefield Hospital publish most on?

By volume in 2022–2025: Cardiac Valve Diseases and Treatments, Mechanical Circulatory Support Devices, Cardiac Imaging and Diagnostics and Cardiac Structural Anomalies and Repair.

Cardiac Valve Diseases a…16Cardiac Valve Diseases and Treatments: 16 fractional worksMechanical Circulatory S…15Mechanical Circulatory Support Devices: 15 fractional worksCardiac Imaging and Diagnostics: 12 fractional worksCardiac Structural Anomalies and Repair: 11 fractional worksChronic Obstructive Pulmonary Disease (COPD) Research: 10 fractional worksCardiovascular Function and Risk Factors: 10 fractional worksTransplantation: Methods and Outcomes: 9 fractional worksCardiac and Coronary Sur…9Cardiac and Coronary Surgery Techniques: 9 fractional worksCongenital Heart Disease Studies: 9 fractional worksCardiac, Anesthesia and Surgical Outcomes: 8 fractional works
Cardiology and Cardiovascular MedicineBiomedical EngineeringRadiology, Nuclear Medicine and ImagingSurgery2 others

Area is fractional works; colour is the subfield each topic belongs to.

  1. 1 Cardiac Valve Diseases and Treatments Cardiology and Cardiovascular Medicine 16 works
  2. 2 Mechanical Circulatory Support Devices Biomedical Engineering 15 works
  3. 3 Cardiac Imaging and Diagnostics Radiology, Nuclear Medicine and Imaging 12 works
  4. 4 Cardiac Structural Anomalies and Repair Surgery 11 works
  5. 5 Chronic Obstructive Pulmonary Disease (COPD) Research Pulmonary and Respiratory Medicine 10 works
  6. 6 Cardiovascular Function and Risk Factors Cardiology and Cardiovascular Medicine 10 works
  7. 7 Transplantation: Methods and Outcomes Surgery 9 works
  8. 8 Cardiac and Coronary Surgery Techniques Surgery 9 works
  9. 9 Congenital Heart Disease Studies Epidemiology 9 works
  10. 10 Cardiac, Anesthesia and Surgical Outcomes Cardiology and Cardiovascular Medicine 8 works

How open and international is its research?

Against the world’s own shares — the tick on each track. Both are shares of its output, so they sit on one scale and can be read against each other as well as against the world.

openly available37.5%not open62.5%

World: 28% of research is openly available.

with international co-authors22.7%domestic only77.3%

World: 19% is written across borders.

How has Harefield Hospital's research output changed?

Output in 2018–2022 was 27% higher than in 2013–2017.

1990200020102020
grewheldshrank

The same series as a ribbon — one cell per year, darker for more. The line above answers how much; this answers when.

Other research institutions in London

All research institutions in London

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners are in the interactive view on the map.