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Hospital / health system · Tokyo · Japan

Keio University Hospital

In research, Keio University Hospital stands highest in Medicine (#2,655 of 10,443 worldwide), Health Sciences (#3,658 of 11,982 worldwide) and Life Sciences (#3,894 of 7,800 worldwide), 2022–2025. Relative to its size it is most specialised in Pulmonary and Respiratory Medicine and Surgery — Pulmonary and Respiratory Medicine is 5.2× its share of world research.

hosp.keio.ac.jpROR OpenAlex
World rank, 2022–2025
#7,571
of 28,054 · #5,955 all time
Rank in Japan
#191
of 1,070
Research works
3.6k
▲ 12% vs 2013–17
Citations
93k
25.7 per fractional work
Top-10% rate
16.1%
record average 16.5%
Open access
40%
world 28%

What is Keio University 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 #2,655 of 10,443 16.0%336 #2385
Health SciencesDomain #3,658 of 11,982 16.3%350 #3179
Life SciencesDomain #3,894 of 7,800 14.8%97 #2442

Each strip is that field’s whole ranked pool, with the notch where Keio University 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#2,385 #2,655
  2. Health Sciences#3,179 #3,658
  3. Life Sciences#2,442 #3,894
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 Keio University Hospital specialise in?

Where its research is concentrated relative to its size: Pulmonary and Respiratory Medicine takes 5.2× the share of its output that it takes of world research.

  1. Pulmonary and Respiratory MedicineSubfield · 39.1 works5.2×
  2. SurgerySubfield · 58.2 works5.1×
← 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: 0.07× its world share, 2 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 2.13× its world share, 55 worksBiochemistry, Geneti…Immunology and Microbiology: 3.01× its world share, 15 worksImmunology and Micro…Neuroscience: 2.97× its world share, 23 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.40× its world share, 2 worksPharmacology, Toxico…Chemical Engineering: 0.05× its world share, 0 worksChemical EngineeringChemistry: 0.18× its world share, 1 worksChemistryComputer Science: 0.07× its world share, 3 worksComputer ScienceEnergy: 0.02× its world share, 0 worksEnergyEngineering: 0.16× its world share, 12 worksEngineeringEnvironmental Science: 0.06× its world share, 1 worksEnvironmental ScienceMaterials Science: 0.08× its world share, 1 worksMaterials ScienceMathematics: 0.29× its world share, 2 worksMathematicsPhysics and Astronomy: 0.09× its world share, 1 worksPhysics and AstronomyDentistry: 0.86× its world share, 2 worksDentistryHealth Professions: 0.77× its world share, 10 worksHealth ProfessionsMedicine: 3.60× its world share, 336 worksMedicineNursing: 0.85× its world share, 2 worksNursingVeterinary: 0.67× its world share, 0 worksVeterinaryArts and Humanities: 0.03× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.01× its world share, 0 worksBusiness, Management…Decision Sciences: 0.27× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.21× its world share, 2 worksEconomics, Econometr…Psychology: 0.53× its world share, 8 worksPsychologySocial Sciences: 0.07× its world share, 5 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Medicine, 3.6×. Every wedge is a field page.

Who are the top researchers at Keio University Hospital?

Ranked on the composite score, Teruo Nakadate, Kengo Nagashima and N Hirabayashi lead among researchers whose main affiliation is Keio University Hospital.

  1. 1 Teruo Nakadate Japan · #269,435 worldwide 67 citations · 27 works
  2. 2 Kengo Nagashima Japan · #1,035,063 worldwide 46 citations · 37 works
  3. 3 N Hirabayashi Japan · #1,158,663 worldwide 10 citations · 16 works
  4. 4 Nakagawa Masahiro Japan · #1,306,328 worldwide 2 citations · 32 works
  5. 5 Takeshi Adachi Japan · #1,393,981 worldwide 0 citations · 16 works
All ranked researchers at Keio University Hospital

Which keywords describe research at Keio University Hospital?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Epidemiology, Inflammation, Treatment, Chemotherapy, Diagnosis, Genetic Mutations, Clinical Practice Guidelines and Neoadjuvant Therapy.

▲ 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. Epidemiology59▲ 3.1×92 topics
  2. Inflammation33▲ 3.3×69 topics
  3. Treatment25▲ 4.3×34 topics
  4. Diagnosis21▲ 4.7×30 topics
  5. Chemotherapy20▲ 6.0×22 topics
  6. Oxidative Stress16▲ 2.1×37 topics
  7. Clinical Practice Guidelines16▲ 6.2×14 topics
  8. Cancer16▲ 2.5×40 topics
  9. Immunotherapy15▲ 4.4×17 topics
  10. Genetic Mutations15▲ 7.2×21 topics
  11. Quality of Life14▲ 2.0×38 topics
  12. Prognostic Factors13▲ 6.2×14 topics
  13. Neoadjuvant Therapy13▲ 11×5 topics
  14. Surgical Management12▲ 6.3×17 topics
  15. Clinical Trials12▲ 3.7×14 topics
  16. Metabolic Syndrome12▲ 3.0×20 topics
  17. Endoscopic Resection12▲ 24×2 topics
  18. Neurological Disorders11▲ 3.8×18 topics
  19. Tumor Microenvironment10▲ 4.7×8 topics
  20. Surgery10▲ 5.8×9 topics
  21. Molecular Characterization10▲ 11×5 topics
  22. Complications10▲ 4.0×17 topics
  23. Neurodegeneration10▲ 6.6×8 topics
  24. Meta-Analysis9▲ 3.3×11 topics
  25. Guidelines9▲ 4.0×11 topics
  26. Survival Analysis8▲ 6.4×6 topics
  27. Heart Failure8▲ 4.0×12 topics
  28. Clinical Guidelines8▲ 5.7×7 topics
  29. Prostate Cancer8▲ 12×4 topics
  30. Preoperative Chemoradiotherapy8▲ 20×2 topics
  31. Pathophysiology8▲ 5.2×10 topics
  32. Adjuvant Therapy7▲ 12×2 topics
  33. Chemoradiation7▲ 21×2 topics
  34. Gastric Cancer6▲ 12×3 topics
  35. Radiosurgery6▲ 14×4 topics
  36. Barrett's Esophagus6▲ 32×1 topic
  37. Esophageal Carcinoma6▲ 32×1 topic
  38. Intraocular Pressure6▲ 15×2 topics
  39. Neoadjuvant Chemotherapy6▲ 15×2 topics
  40. Glaucoma6▲ 8.1×4 topics

Which research topics does Keio University Hospital publish most on?

By volume in 2022–2025: Esophageal Cancer Research and Treatment, Gastric Cancer Management and Outcomes, Glaucoma and retinal disorders and Cardiac Valve Diseases and Treatments.

Esophageal Cancer Resear…6Esophageal Cancer Research and Treatment: 6 fractional worksGastric Cancer Managemen…5Gastric Cancer Management and Outcomes: 5 fractional worksGlaucoma and retinal disorders: 4 fractional worksCardiac Valve Diseases and Treatments: 4 fractional worksOphthalmology and Visual…3Ophthalmology and Visual Impairment Studies: 3 fractional worksMeningioma and schwannoma management: 3 fractional worksSpine and Intervertebral Disc Pathology: 3 fractional worksPancreatic and Hepatic O…3Pancreatic and Hepatic Oncology Research: 3 fractional worksPluripotent Stem Cells Research: 3 fractional worksCancer Immunotherapy and Biomarkers: 3 fractional works
SurgeryPulmonary and Respiratory MedicineOphthalmologyCardiology and Cardiovascular Medicine4 others

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

  1. 1 Esophageal Cancer Research and Treatment Surgery 6 works
  2. 2 Gastric Cancer Management and Outcomes Pulmonary and Respiratory Medicine 5 works
  3. 3 Glaucoma and retinal disorders Ophthalmology 4 works
  4. 4 Cardiac Valve Diseases and Treatments Cardiology and Cardiovascular Medicine 4 works
  5. 5 Ophthalmology and Visual Impairment Studies Epidemiology 3 works
  6. 6 Meningioma and schwannoma management Epidemiology 3 works
  7. 7 Spine and Intervertebral Disc Pathology Pathology and Forensic Medicine 3 works
  8. 8 Pancreatic and Hepatic Oncology Research Oncology 3 works
  9. 9 Pluripotent Stem Cells Research Molecular Biology 3 works
  10. 10 Cancer Immunotherapy and Biomarkers Oncology 3 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 available40.3%not open59.7%

World: 28% of research is openly available.

with international co-authors9.6%domestic only90.4%

World: 19% is written across borders.

How has Keio University Hospital's research output changed?

Output in 2018–2022 was 12% 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 Tokyo

All research institutions in Tokyo

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.