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Hospital / health system · Athens · Greece

Onassis Cardiac Surgery Center

In research, Onassis Cardiac Surgery Center stands highest in Health Sciences (#3,000 of 9,902 worldwide), Medicine (#2,990 of 8,541 worldwide) and Cardiology and Cardiovascular Medicine (#461 of 736 worldwide), 2022-now. Relative to its size it is most specialised in Cardiology and Cardiovascular Medicine and Surgery (Cardiology and Cardiovascular Medicine is 35.2× its share of world research).

onasseio.gr/onaseioROR OpenAlex
World rank, 2022-now
#14,324
of 22,385 · #16,714 all time
Rank in Greece
#57
of 111
Research works
1.3k
◆ 1% vs 2018-21
Citations
23k
17.9 per fractional work
Top-10% rate
10.3%
all institutions 10.0%
vs its own fields
1.01×
1.00× is exactly expected
Open access
41%
world 40%
International
16%
world 18%
Onassis Cardiac Surgery Center

What is Onassis Cardiac Surgery Center known for in research?

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

FieldWorld rankWhere that sitsTop-10% rateWorksAll time
Health SciencesDomain #3,000 of 9,902 11.4%142 #6096
MedicineField #2,990 of 8,541 11.7%138 #5610
Cardiology and Cardiovascular MedicineSubfield #461 of 736 9.7%62 #837

Each strip is that field's whole ranked pool, with the notch where Onassis Cardiac Surgery Center 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 average mark, because the average differs by field (from about 6% in Dentistry to 21% in Economics).

Which of those standings moved

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

  1. Health Sciences#6,096 #3,000
  2. Medicine#5,610 #2,990
  3. Cardiology and Cardiovascular Medicine#837 #461
all time2022-now, better2022-now, worse

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

Which fields of science does Onassis Cardiac Surgery Center work in?

In 2022-now, 85% of research at Onassis Cardiac Surgery Center is in Health Sciences, 7% in Life Sciences. Its largest fields are Medicine (82%), Biochemistry, Genetics and Molecular Biology (5%), Engineering (4%). It does 3.5× the world's share of Health Sciences.

Health Sciences: 163 fractional works · 84.6% of its workMedicine: 158 fractional works · 82.2% of its workCardiology and Cardiovascular Medicine: 71 fractional works · 36.9% of its workSurgery: 20 fractional works · 10.5% of its workPulmonary and Respiratory Medicine: 18 fractional works · 9.5% of its workEpidemiology: 12 fractional works · 6.5% of its workRadiology, Nuclear Medicine and Imaging: 9 fractional works · 4.7% of its workPhysiology: 3 fractional works · 1.7% of its workComplementary and alternative medicine: 3 fractional works · 1.4% of its workRheumatology: 2 fractional works · 1.2% of its workNephrology: 2 fractional works · 1.1% of its workEmergency Medicine: 2 fractional works · 1.0% of its workNeurology: 2 fractional works · 1.0% of its workPathology and Forensic Medicine: 2 fractional works · 0.9% of its workInfectious Diseases: 1 fractional works · 0.7% of its workGenetics: 1 fractional works · 0.6% of its workCritical Care and Intensive Care Medicine: 1 fractional works · 0.6% of its workOncology: 1 fractional works · 0.5% of its workAnesthesiology and Pain Medicine: 1 fractional works · 0.4% of its workPublic Health, Environmental and Occupational Health: 1 fractional works · 0.4% of its workOphthalmology: 1 fractional works · 0.4% of its workEndocrinology, Diabetes and Metabolism: 1 fractional works · 0.4% of its workHematology: 1 fractional works · 0.3% of its workBiochemistry: 1 fractional works · 0.3% of its workTransplantation: 0 fractional works · 0.2% of its workRehabilitation: 0 fractional works · 0.2% of its workSmaller subfields together: 2 fractional works · 0.9% of its workHealth Professions: 3 fractional works · 1.8% of its workMedical Laboratory Technology: 1 fractional works · 0.5% of its workGeneral Health Professions: 1 fractional works · 0.4% of its workEmergency Medical Services: 0 fractional works · 0.3% of its workPharmacy: 0 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.3% of its workNursing: 1 fractional works · 0.6% of its workNutrition and Dietetics: 1 fractional works · 0.6% of its workDentistry: 0 fractional works · 0.0% of its workLife Sciences: 13 fractional works · 6.9% of its workBiochemistry, Genetics and Molecular Biology: 11 fractional works · 5.5% of its workMolecular Biology: 6 fractional works · 3.0% of its workGenetics: 2 fractional works · 1.1% of its workCancer Research: 1 fractional works · 0.4% of its workBiotechnology: 1 fractional works · 0.3% of its workMolecular Medicine: 0 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.4% of its workImmunology and Microbiology: 1 fractional works · 0.6% of its workImmunology: 1 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.2% of its workAgricultural and Biological Sciences: 1 fractional works · 0.3% of its workNeuroscience: 1 fractional works · 0.3% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.2% of its workPharmacology: 0 fractional works · 0.2% of its workPhysical Sciences: 12 fractional works · 6.1% of its workEngineering: 8 fractional works · 4.4% of its workBiomedical Engineering: 7 fractional works · 3.9% of its workElectrical and Electronic Engineering: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workComputer Science: 2 fractional works · 0.9% of its workComputer Vision and Pattern Recognition: 1 fractional works · 0.4% of its workComputational Theory and Mathematics: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workEnvironmental Science: 1 fractional works · 0.3% of its workChemistry: 1 fractional works · 0.3% of its workEarth and Planetary Sciences: 0 fractional works · 0.2% of its workSocial Sciences: 5 fractional works · 2.4% of its workPsychology: 2 fractional works · 0.8% of its workSocial Psychology: 1 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.4% of its workArts and Humanities: 1 fractional works · 0.7% of its workSocial Sciences: 1 fractional works · 0.6% of its workSociology and Political Science: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.4% of its workEconomics, Econometrics and Finance: 1 fractional works · 0.3% of its workEconomics and Econometrics: 1 fractional works · 0.3% of its workDecision Sciences: 0 fractional works · 0.1% of its workALL ITS WORKOnassis CardiacSurgery Center192fractional works, 2022-now
Life Sciences7%Physical Sciences6%Health Sciences85%Social Sciences2%

Each ring splits the one inside it: the four domains of science, their fields, their subfields. Size is fractional works in 2022-now. Every slice is a page; the interactive view zooms down to single topics and colours each by how much more of it this institution does than the world.

Its 4 domains and 20 fields, with their numbers
    1. Medicine15882.2%
    2. Health Professions31.8%
    3. Nursing10.6%
    4. Dentistry00.0%
    1. Biochemistry, Genetics and Molecular Biology115.5%
    2. Immunology and Microbiology10.6%
    3. Agricultural and Biological Sciences10.3%
    4. Neuroscience10.3%
    5. Pharmacology, Toxicology and Pharmaceutics00.2%
    1. Engineering84.4%
    2. Computer Science20.9%
    3. Environmental Science10.3%
    4. Chemistry10.3%
    5. Earth and Planetary Sciences00.2%
    6. Mathematics00.0%
    1. Psychology20.8%
    2. Arts and Humanities10.7%
    3. Social Sciences10.6%
    4. Economics, Econometrics and Finance10.3%
    5. Decision Sciences00.1%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does Onassis Cardiac Surgery Center specialise in?

Where its research is concentrated relative to its size: Cardiology and Cardiovascular Medicine takes 35.2× the share of its output that it takes of world research.

  1. Cardiology and Cardiovascular MedicineSubfield · 71.0 works35×
  2. SurgerySubfield · 20.1 works4.5×
← 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: 0.06× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.03× its world share, 10 worksBiochemistry, Geneti…Immunology and Microbiology: 0.63× its world share, 1 worksImmunology and Micro…Neuroscience: 0.18× its world share, 1 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.66× its world share, 0 worksPharmacology, Toxico…Chemistry: 0.19× its world share, 1 worksChemistryComputer Science: 0.11× its world share, 2 worksComputer ScienceEarth and Planetary Sciences: 0.14× its world share, 0 worksEarth and Planetary …Engineering: 0.29× its world share, 8 worksEngineeringEnvironmental Science: 0.07× its world share, 1 worksEnvironmental ScienceDentistry: 0.06× its world share, 0 worksDentistryHealth Professions: 0.67× its world share, 3 worksHealth ProfessionsMedicine: 4.28× its world share, 158 worksMedicineNursing: 1.13× its world share, 1 worksNursingArts and Humanities: 0.23× its world share, 1 worksArts and HumanitiesDecision Sciences: 0.09× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.13× its world share, 0 worksEconomics, Econometr…Psychology: 0.26× its world share, 2 worksPsychologySocial Sciences: 0.05× its world share, 1 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.

All 19 fields, with their numbers
  1. Medicine4.28×158 works
  2. Nursing1.13×1 works
  3. Biochemistry, Genetics and Molecular Biology1.03×10 works
  4. Health Professions0.67×3 works
  5. Pharmacology, Toxicology and Pharmaceutics0.66×0 works
  6. Immunology and Microbiology0.63×1 works
  7. Engineering0.29×8 works
  8. Psychology0.26×2 works
  9. Arts and Humanities0.23×1 works
  10. Chemistry0.19×1 works
  11. Neuroscience0.18×1 works
  12. Earth and Planetary Sciences0.14×0 works
  13. Economics, Econometrics and Finance0.13×0 works
  14. Computer Science0.11×2 works
  15. Decision Sciences0.09×0 works
  16. Environmental Science0.07×1 works
  17. Agricultural and Biological Sciences0.06×1 works
  18. Dentistry0.06×0 works
  19. Social Sciences0.05×1 works

Who are the top researchers at Onassis Cardiac Surgery Center?

Ranked on the quality score, Stamatis N. Adamopoulos, Dimitris Tsiapras and George D. Athanassopoulos lead among researchers whose main affiliation is Onassis Cardiac Surgery Center.

  1. 1 Stamatis N. Adamopoulos Greece · #278,866 worldwide 41k citations · 248 works
  2. 2 Dimitris Tsiapras Greece · #499,478 worldwide 3.8k citations · 45 works
  3. 3 George D. Athanassopoulos Greece · #791,827 worldwide 7.8k citations · 91 works
  4. 4 Giorgio Romagna Greece · #1,079,473 worldwide 2k citations · 16 works
  5. 5 Vasilis Voudris Greece · #1,205,061 worldwide 3.2k citations · 32 works
  6. 6 Gregory Pavlides Greece · #1,715,738 worldwide 3.4k citations · 101 works
  7. 7 Athanasios Dritsas Greece · #1,732,509 worldwide 1.6k citations · 73 works
  8. 8 Stamatis Kyrzopoulos Greece · #1,800,712 worldwide 2.4k citations · 65 works
  9. 9 John K. Papagiannis Greece · #1,818,567 worldwide 3.1k citations · 95 works
  10. 10 Athanassios N. Manginas Greece · #1,947,318 worldwide 3.1k citations · 119 works
All ranked researchers at Onassis Cardiac Surgery Center

What are the most cited papers from Onassis Cardiac Surgery Center?

The most cited paper from Onassis Cardiac Surgery Center is "Large-scale association analysis identifies 13 new susceptibility loci for coronary artery disease" (Cardiogenics et al., 2011), with 1,959 citations. Next come "Large-scale association analysis identifies new risk loci for coronary artery disease" (1,681) and "Advanced Heart Failure: A Position Statement of the Heart Failure Association of the European Society of Cardiology" (889).

Most cited papers
#PaperReleasedCitations
1 Large-scale association analysis identifies 13 new susceptibility loci for coronary artery disease Cardiogenics et al. · Nature Genetics Open access167 authors 6 Mar 2011 1,959
2 Large-scale association analysis identifies new risk loci for coronary artery disease Panos Deloukas et al. · Nature Genetics Open access183 authors 2 Dec 2012 1,681
3 Advanced Heart Failure: A Position Statement of the Heart Failure Association of the European Society of Cardiology María G. Crespo‐Leiro et al. · European Journal of Heart Failure Open access 28 May 2018 889
4 Prasugrel versus Clopidogrel for Acute Coronary Syndromes without Revascularization Matthew T. Roe et al. · New England Journal of Medicine Open access 26 Aug 2012 884
5 Fasting is not routinely required for determination of a lipid profile: clinical and laboratory implications including flagging at desirable concentration cut-points—a joint consensus statement from the European Atherosclerosis Society and European Federation of Clinical Chemistry and Laboratory Medicine Børge Grønne Nordestgaard et al. · European Heart Journal Open access 26 Apr 2016 864
All 60 most cited papers, with filters and sorting

Which keywords describe research at Onassis Cardiac Surgery Center?

By fractional works in 2022-now, weighted toward what it does more of than the world: Heart Failure, Echocardiography, Catheter Ablation, Myocardial Infarction, Arrhythmias, Guidelines, Atrial Fibrillation and Cardiomyopathy.

▲ 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-now 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 Failure27▲ 31×12 topics
  2. Echocardiography25▲ 47×7 topics
  3. Catheter Ablation18▲ 76×2 topics
  4. Myocardial Infarction16▲ 35×7 topics
  5. Arrhythmias16▲ 86×2 topics
  6. Guidelines13▲ 14×5 topics
  7. Atrial Fibrillation12▲ 63×2 topics
  8. Cardiomyopathy12▲ 66×4 topics
  9. Treatment11▲ 4.8×19 topics
  10. Cardiac Imaging11▲ 48×3 topics
  11. Sudden Cardiac Death11▲ 67×2 topics
  12. Diagnosis10▲ 5.8×13 topics
  13. Radiofrequency Ablation10▲ 51×1 topic
  14. Ventricular Tachycardia10▲ 109×1 topic
  15. Dilated Cardiomyopathy10▲ 77×2 topics
  16. Obesity10▲ 6.8×9 topics
  17. Genetic Mutations10▲ 12×10 topics
  18. Coronary Artery Disease9▲ 42×3 topics
  19. Cardiovascular Disease9▲ 4.1×23 topics
  20. Congenital Heart Disease8▲ 52×3 topics
  21. Surgical Aortic-Valve Replacement8▲ 60×1 topic
  22. Transcatheter Aortic-Valve Replacement8▲ 60×1 topic
  23. Stroke Prevention8▲ 35×2 topics
  24. Magnetic Resonance Imaging8▲ 16×3 topics
  25. Percutaneous Coronary Intervention8▲ 30×4 topics
  26. Endovascular Repair8▲ 47×3 topics
  27. Anticoagulant Therapy8▲ 32×1 topic
  28. Risk Stratification8▲ 55×1 topic
  29. Thrombosis8▲ 14×4 topics
  30. Cardiovascular Risk8▲ 12×5 topics
  31. Cardiac Surgery7▲ 53×2 topics
  32. Extracorporeal Membrane Oxygenation7▲ 50×2 topics
  33. Neurodevelopmental Outcomes7▲ 20×2 topics
  34. Mortality Risk7▲ 16×4 topics
  35. Adult Congenital Heart Disease7▲ 67×1 topic
  36. Chamber Quantification7▲ 45×1 topic
  37. Diastolic Function7▲ 45×1 topic
  38. Pulmonary Valve Replacement7▲ 67×1 topic
  39. Cardiogenic Shock7▲ 70×1 topic
  40. Radiation Exposure7▲ 35×2 topics

Which research topics does Onassis Cardiac Surgery Center publish most on?

By volume in 2022-now: Cardiac Arrhythmias and Treatments, Cardiac Valve Diseases and Treatments, Atrial Fibrillation Management and Outcomes and Congenital Heart Disease Studies.

Cardiac Arrhythmias and …10Cardiac Arrhythmias and Treatments: 10 fractional worksCardiac Valve Diseases a…8Cardiac Valve Diseases and Treatments: 8 fractional worksAtrial Fibrillation Management and Outcomes: 8 fractional worksCongenital Heart Disease Studies: 7 fractional worksCardiovascular Function and Risk Factors: 7 fractional worksMechanical Circulatory Support Devices: 7 fractional worksCardiac Imaging and Diagnostics: 6 fractional worksCardiac Structural Anoma…6Cardiac Structural Anomalies and Repair: 6 fractional worksCardiac pacing and defibrillation studies: 6 fractional worksAortic Disease and Treatment Approaches: 5 fractional works
Cardiology and Cardiovascular MedicineEpidemiologyBiomedical EngineeringRadiology, Nuclear Medicine and Imaging2 others

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

  1. 1 Cardiac Arrhythmias and Treatments Cardiology and Cardiovascular Medicine 10 works
  2. 2 Cardiac Valve Diseases and Treatments Cardiology and Cardiovascular Medicine 8 works
  3. 3 Atrial Fibrillation Management and Outcomes Cardiology and Cardiovascular Medicine 8 works
  4. 4 Congenital Heart Disease Studies Epidemiology 7 works
  5. 5 Cardiovascular Function and Risk Factors Cardiology and Cardiovascular Medicine 7 works
  6. 6 Mechanical Circulatory Support Devices Biomedical Engineering 7 works
  7. 7 Cardiac Imaging and Diagnostics Radiology, Nuclear Medicine and Imaging 6 works
  8. 8 Cardiac Structural Anomalies and Repair Surgery 6 works
  9. 9 Cardiac pacing and defibrillation studies Cardiology and Cardiovascular Medicine 6 works
  10. 10 Aortic Disease and Treatment Approaches Pulmonary and Respiratory Medicine 5 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 available41.3%not open58.7%

World: 40% of research is openly available.

with international co-authors16.1%domestic only83.9%

World: 18% is written across borders.

How has Onassis Cardiac Surgery Center's research output changed?

Output in 2022-2025 was 1% higher than in 2018-2021.

still counting1990200020102020
grewheldshrank

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

Its share of all research

Growing output can still be a shrinking share: all of science grows. This is Onassis Cardiac Surgery Center as a percentage of every work published that year, 0.00081% in 2024.

still counting0.0020%0.0040%Onassis Cardiac Surgery Center0.00063% in 202519801990200020102020

Fractional works of Onassis Cardiac Surgery Center over all fractional works that year. How the balance of science has shifted.

How much of it reaches the world top 10%

Year by year, against all institutions in the same year.

still counting10%20%all institutions10.0% in 2025Onassis Cardiac Surgery Center9.9% in 2025200020102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 15.4% in 2022.

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Onassis Cardiac Surgery Center on Science Explorer

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