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Hospital / health system · Okayama · Japan

Sakakibara Hospital

In research, Sakakibara Hospital stands highest in Health Sciences (#4,693 of 9,902 worldwide), Medicine (#4,797 of 8,541 worldwide) and Cardiology and Cardiovascular Medicine (#488 of 736 worldwide), 2022-now. Relative to its size it is most specialised in Cardiology and Cardiovascular Medicine, Pulmonary and Respiratory Medicine and Surgery (Cardiology and Cardiovascular Medicine is 36.7× its share of world research).

sakakibara-hp.comROR OpenAlex
World rank, 2022-now
#16,639
of 22,385 · #19,177 all time
Rank in Japan
#499
of 924
Research works
1.1k
▲ 7% vs 2018-21
Citations
10k
9.4 per fractional work
Top-10% rate
6.0%
all institutions 10.0%
vs its own fields
0.85×
1.00× is exactly expected
Open access
47%
world 40%
International
5%
world 18%
Sakakibara Hospital

What is Sakakibara Hospital 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 #4,693 of 9,902 5.2%182 #5080
MedicineField #4,797 of 8,541 5.3%178 #5101
Cardiology and Cardiovascular MedicineSubfield #488 of 736 5.8%80 #766

Each strip is that field's whole ranked pool, with the notch where Sakakibara 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 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#5,080 #4,693
  2. Medicine#5,101 #4,797
  3. Cardiology and Cardiovascular Medicine#766 #488
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 Sakakibara Hospital work in?

In 2022-now, 89% of research at Sakakibara Hospital is in Health Sciences, 5% in Physical Sciences. Its largest fields are Medicine (87%), Engineering (4%), Biochemistry, Genetics and Molecular Biology (3%). It does 3.7× the world's share of Health Sciences.

Health Sciences: 207 fractional works · 89.3% of its workMedicine: 202 fractional works · 87.4% of its workCardiology and Cardiovascular Medicine: 89 fractional works · 38.6% of its workPulmonary and Respiratory Medicine: 31 fractional works · 13.4% of its workSurgery: 25 fractional works · 10.7% of its workEpidemiology: 14 fractional works · 6.2% of its workRadiology, Nuclear Medicine and Imaging: 11 fractional works · 4.7% of its workPhysiology: 5 fractional works · 2.2% of its workGeriatrics and Gerontology: 3 fractional works · 1.3% of its workCritical Care and Intensive Care Medicine: 3 fractional works · 1.2% of its workEmergency Medicine: 3 fractional works · 1.2% of its workNeurology: 2 fractional works · 0.9% of its workComplementary and alternative medicine: 1 fractional works · 0.6% of its workNephrology: 1 fractional works · 0.6% of its workEndocrinology, Diabetes and Metabolism: 1 fractional works · 0.6% of its workInternal Medicine: 1 fractional works · 0.6% of its workAnesthesiology and Pain Medicine: 1 fractional works · 0.5% of its workPsychiatry and Mental health: 1 fractional works · 0.5% of its workRheumatology: 1 fractional works · 0.5% of its workPathology and Forensic Medicine: 1 fractional works · 0.4% of its workHematology: 1 fractional works · 0.4% of its workHepatology: 1 fractional works · 0.4% of its workRehabilitation: 1 fractional works · 0.3% of its workBiochemistry: 1 fractional works · 0.3% of its workInfectious Diseases: 1 fractional works · 0.2% of its workSmaller subfields together: 3 fractional works · 1.1% of its workHealth Professions: 4 fractional works · 1.6% of its workEmergency Medical Services: 2 fractional works · 0.8% of its workGeneral Health Professions: 1 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.4% of its workDentistry: 0 fractional works · 0.2% of its workNursing: 0 fractional works · 0.1% of its workPhysical Sciences: 11 fractional works · 4.9% of its workEngineering: 10 fractional works · 4.3% of its workBiomedical Engineering: 8 fractional works · 3.4% of its workAerospace Engineering: 1 fractional works · 0.3% of its workElectrical and Electronic Engineering: 1 fractional works · 0.2% of its workAutomotive Engineering: 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 workComputer Science: 0 fractional works · 0.2% of its workPhysics and Astronomy: 0 fractional works · 0.1% of its workMathematics: 0 fractional works · 0.1% of its workLife Sciences: 11 fractional works · 4.6% of its workBiochemistry, Genetics and Molecular Biology: 7 fractional works · 3.1% of its workGenetics: 3 fractional works · 1.3% of its workMolecular Biology: 3 fractional works · 1.2% of its workSmaller subfields together: 1 fractional works · 0.5% of its workNeuroscience: 3 fractional works · 1.2% of its workCognitive Neuroscience: 1 fractional works · 0.6% of its workCellular and Molecular Neuroscience: 1 fractional works · 0.3% of its workSmaller subfields together: 1 fractional works · 0.3% of its workImmunology and Microbiology: 0 fractional works · 0.2% of its workAgricultural and Biological Sciences: 0 fractional works · 0.1% of its workPharmacology, Toxicology and Pharmaceutics: 0 fractional works · 0.0% of its workSocial Sciences: 3 fractional works · 1.2% 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 · 0.3% of its workPsychology: 1 fractional works · 0.5% of its workEconomics, Econometrics and Finance: 0 fractional works · 0.1% of its workALL ITS WORKSakakibaraHospital232fractional works, 2022-now
Life Sciences5%Physical Sciences5%Health Sciences89%Social Sciences1%

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 19 fields, with their numbers
    1. Medicine20287.4%
    2. Health Professions41.6%
    3. Dentistry00.2%
    4. Nursing00.1%
    1. Engineering104.3%
    2. Environmental Science10.3%
    3. Computer Science00.2%
    4. Physics and Astronomy00.1%
    5. Mathematics00.1%
    1. Biochemistry, Genetics and Molecular Biology73.1%
    2. Neuroscience31.2%
    3. Immunology and Microbiology00.2%
    4. Agricultural and Biological Sciences00.1%
    5. Pharmacology, Toxicology and Pharmaceutics00.0%
    1. Social Sciences10.6%
    2. Psychology10.5%
    3. Economics, Econometrics and Finance00.1%
    4. Arts and Humanities00.0%
    5. Business, Management and Accounting00.0%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does Sakakibara Hospital specialise in?

Where its research is concentrated relative to its size: Cardiology and Cardiovascular Medicine takes 36.7× the share of its output that it takes of world research.

  1. Cardiology and Cardiovascular MedicineSubfield · 89.3 works37×
  2. Pulmonary and Respiratory MedicineSubfield · 31.1 works8.7×
  3. SurgerySubfield · 24.8 works4.6×
← 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: 0.02× its world share, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.58× its world share, 7 worksBiochemistry, Geneti…Immunology and Microbiology: 0.17× its world share, 0 worksImmunology and Micro…Neuroscience: 0.72× its world share, 3 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.10× its world share, 0 worksPharmacology, Toxico…Computer Science: 0.02× its world share, 0 worksComputer ScienceEngineering: 0.29× its world share, 10 worksEngineeringEnvironmental Science: 0.06× its world share, 1 worksEnvironmental ScienceMathematics: 0.06× its world share, 0 worksMathematicsPhysics and Astronomy: 0.05× its world share, 0 worksPhysics and AstronomyDentistry: 0.35× its world share, 0 worksDentistryHealth Professions: 0.60× its world share, 4 worksHealth ProfessionsMedicine: 4.55× its world share, 202 worksMedicineNursing: 0.23× its world share, 0 worksNursingEconomics, Econometrics and Finance: 0.05× its world share, 0 worksEconomics, Econometr…Psychology: 0.17× its world share, 1 worksPsychologySocial Sciences: 0.04× 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, 4.5×. Every wedge is a field page.

All 17 fields, with their numbers
  1. Medicine4.55×202 works
  2. Neuroscience0.72×3 works
  3. Health Professions0.60×4 works
  4. Biochemistry, Genetics and Molecular Biology0.58×7 works
  5. Dentistry0.35×0 works
  6. Engineering0.29×10 works
  7. Nursing0.23×0 works
  8. Immunology and Microbiology0.17×0 works
  9. Psychology0.17×1 works
  10. Pharmacology, Toxicology and Pharmaceutics0.10×0 works
  11. Environmental Science0.06×1 works
  12. Mathematics0.06×0 works
  13. Physics and Astronomy0.05×0 works
  14. Economics, Econometrics and Finance0.05×0 works
  15. Social Sciences0.04×1 works
  16. Agricultural and Biological Sciences0.02×0 works
  17. Computer Science0.02×0 works

Who are the top researchers at Sakakibara Hospital?

Ranked on the quality score, Kazuya Saito, Yuki Izumi and Mike Saji lead among researchers whose main affiliation is Sakakibara Hospital.

  1. 1 Kazuya Saito Japan · #1,451,721 worldwide 1.5k citations · 103 works
  2. 2 Yuki Izumi Japan · #1,580,850 worldwide 649 citations · 31 works
  3. 3 Mike Saji Japan · #2,119,056 worldwide 11 citations · 28 works
  4. 4 Kentaro Hori Japan · #2,122,830 worldwide 285 citations · 29 works
  5. 5 Masatoshi Nagayama Japan · #2,166,000 worldwide 1.9k citations · 126 works
  6. 6 Mamoru Nanasato Japan · #2,217,122 worldwide 2.8k citations · 259 works
  7. 7 Mitsunobu Kitamura Japan · #2,268,373 worldwide 1.8k citations · 138 works
  8. 8 Keitaro Mahara Japan · #2,309,557 worldwide 2.5k citations · 126 works
  9. 9 Junko Sakamoto Japan · #2,425,521 worldwide 640 citations · 32 works
  10. 10 Kazuhiko Misu Japan · #2,447,173 worldwide 632 citations · 55 works
All ranked researchers at Sakakibara Hospital

What are the most cited papers from Sakakibara Hospital?

The most cited paper from Sakakibara Hospital is "HRS Expert Consensus Statement on the Diagnosis and Management of Arrhythmias Associated With Cardiac Sarcoidosis" (David H. Birnie, William H. Sauer, Frank Matthias Bogun et al., 2014), with 1,492 citations. Next come "Effect of 1-Month Dual Antiplatelet Therapy Followed by Clopidogrel vs 12-Month Dual Antiplatelet Therapy on Cardiovascular and Bleeding Events in Patients Receiving PCI" (861) and "JCS 2017/JHFS 2017 Guideline on Diagnosis and Treatment of Acute and Chronic Heart Failure ― Digest Version ―" (716).

Most cited papers
#PaperReleasedCitations
1 HRS Expert Consensus Statement on the Diagnosis and Management of Arrhythmias Associated With Cardiac Sarcoidosis David H. Birnie, William H. Sauer, Frank Matthias Bogun et al. · Heart Rhythm 9 May 2014 1,492
2 Effect of 1-Month Dual Antiplatelet Therapy Followed by Clopidogrel vs 12-Month Dual Antiplatelet Therapy on Cardiovascular and Bleeding Events in Patients Receiving PCI Hirotoshi Watanabe et al. · JAMA Open access 25 Jun 2019 861
3 JCS 2017/JHFS 2017 Guideline on Diagnosis and Treatment of Acute and Chronic Heart Failure ― Digest Version ― Hiroyuki Tsutsui et al. · Circulation Journal Open access 9 Sep 2019 716
4 JCS 2016 Guideline on Diagnosis and Treatment of Cardiac Sarcoidosis ― Digest Version ― Fumio Terasaki et al. · Circulation Journal Open access 8 Oct 2019 485
5 Coronary Atherosclerosis Is Associated With Macrophage Polarization in Epicardial Adipose Tissue Yoichiro Hirata, Minoru Tabata, Hirotsugu Kurobe et al. · Journal of the American College of Cardiology Open access Jul 2011 429
All 60 most cited papers, with filters and sorting

Which keywords describe research at Sakakibara Hospital?

By fractional works in 2022-now, weighted toward what it does more of than the world: Echocardiography, Heart Failure, Guidelines, Surgical Aortic-Valve Replacement, Transcatheter Aortic-Valve Replacement, Catheter Ablation, Myocardial Infarction and Endovascular Repair.

▲ 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. Echocardiography35▲ 54×8 topics
  2. Heart Failure31▲ 30×12 topics
  3. Guidelines21▲ 19×6 topics
  4. Surgical Aortic-Valve Replacement20▲ 118×1 topic
  5. Transcatheter Aortic-Valve Replacement20▲ 118×1 topic
  6. Catheter Ablation19▲ 66×2 topics
  7. Myocardial Infarction19▲ 34×6 topics
  8. Endovascular Repair17▲ 84×3 topics
  9. Epidemiology16▲ 1.70×27 topics
  10. Aortic Aneurysm15▲ 101×2 topics
  11. Diagnosis14▲ 6.7×12 topics
  12. Treatment14▲ 5.1×13 topics
  13. Arrhythmias13▲ 59×2 topics
  14. Aortic Dissection13▲ 128×1 topic
  15. Bicuspid Aortic Valve13▲ 128×1 topic
  16. Cardiac Imaging12▲ 43×3 topics
  17. Percutaneous Coronary Intervention12▲ 37×4 topics
  18. Obesity11▲ 6.1×9 topics
  19. Cardiovascular Disease11▲ 4.0×19 topics
  20. Stroke Prevention10▲ 37×2 topics
  21. Atrial Fibrillation10▲ 44×2 topics
  22. Anticoagulant Therapy10▲ 33×1 topic
  23. Dilated Cardiomyopathy10▲ 61×2 topics
  24. Risk Stratification10▲ 57×1 topic
  25. Cardiomyopathy10▲ 45×3 topics
  26. Cardiovascular Risk10▲ 13×3 topics
  27. Sudden Cardiac Death10▲ 48×2 topics
  28. Mortality Risk9▲ 17×3 topics
  29. Chamber Quantification9▲ 50×1 topic
  30. Diastolic Function9▲ 50×1 topic
  31. Radiofrequency Ablation9▲ 38×2 topics
  32. Electroanatomic Mapping9▲ 81×1 topic
  33. Magnetic Resonance Imaging9▲ 16×5 topics
  34. Ventricular Tachycardia9▲ 81×1 topic
  35. Congenital Heart Disease9▲ 44×3 topics
  36. Coronary Artery Disease8▲ 30×3 topics
  37. Prophylaxis7▲ 25×2 topics
  38. Cardiac Surgery7▲ 42×2 topics
  39. Neurodevelopmental Outcomes7▲ 16×5 topics
  40. Thrombosis7▲ 11×6 topics

Which research topics does Sakakibara Hospital publish most on?

By volume in 2022-now: Cardiac Valve Diseases and Treatments, Aortic Disease and Treatment Approaches, Atrial Fibrillation Management and Outcomes and Cardiovascular Function and Risk Factors.

Cardiac Valve Diseases a…20Cardiac Valve Diseases and Treatments: 20 fractional worksAortic Disease and Treatment Approaches: 13 fractional worksAtrial Fibrillation Mana…10Atrial Fibrillation Management and Outcomes: 10 fractional worksCardiovascular Function …9Cardiovascular Function and Risk Factors: 9 fractional worksCardiac Arrhythmias and Treatments: 9 fractional worksCardiac Imaging and Diagnostics: 7 fractional worksCongenital Heart Disease…6Congenital Heart Disease Studies: 6 fractional worksMechanical Circulatory Support Devices: 6 fractional worksInfective Endocarditis Diagnosis and Management: 6 fractional worksCardiac pacing and defibrillation studies: 6 fractional works
Cardiology and Cardiovascular MedicinePulmonary and Respiratory MedicineRadiology, Nuclear Medicine and ImagingEpidemiology1 others

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

  1. 1 Cardiac Valve Diseases and Treatments Cardiology and Cardiovascular Medicine 20 works
  2. 2 Aortic Disease and Treatment Approaches Pulmonary and Respiratory Medicine 13 works
  3. 3 Atrial Fibrillation Management and Outcomes Cardiology and Cardiovascular Medicine 10 works
  4. 4 Cardiovascular Function and Risk Factors Cardiology and Cardiovascular Medicine 9 works
  5. 5 Cardiac Arrhythmias and Treatments Cardiology and Cardiovascular Medicine 9 works
  6. 6 Cardiac Imaging and Diagnostics Radiology, Nuclear Medicine and Imaging 7 works
  7. 7 Congenital Heart Disease Studies Epidemiology 6 works
  8. 8 Mechanical Circulatory Support Devices Biomedical Engineering 6 works
  9. 9 Infective Endocarditis Diagnosis and Management Epidemiology 6 works
  10. 10 Cardiac pacing and defibrillation studies Cardiology and Cardiovascular Medicine 6 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 available47.2%not open52.8%

World: 40% of research is openly available.

with international co-authors5.1%domestic only94.9%

World: 18% is written across borders.

How has Sakakibara Hospital's research output changed?

Output in 2022-2025 was 7% 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 Sakakibara Hospital as a percentage of every work published that year, 0.00081% in 2024.

still counting0.0010%0.0020%Sakakibara Hospital0.00097% in 202519801990200020102020

Fractional works of Sakakibara Hospital 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 counting5%10%15%all institutions10.0% in 2025Sakakibara Hospital5.6% in 202520102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 10.1% in 2014.

Other research institutions in Okayama

All research institutions in Okayama

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Sakakibara Hospital on Science Explorer

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