Science Explorer Back to mapMap
Discussion
Hospital / health system · Athens · Greece

Agia Olga Hospital

In research, Agia Olga Hospital stands highest in Medicine (#4,771 of 8,541 worldwide) and Health Sciences (#6,199 of 9,902 worldwide), 2022-now.

konstantopouleio.gov.grROR OpenAlex
World rank, 2022-now
#21,673
of 22,385 · #22,115 all time
Rank in Greece
#106
of 111
Research works
559
▼ 37% vs 2018-21
Citations
11k
19.6 per fractional work
Top-10% rate
11.8%
all institutions 10.0%
vs its own fields
1.00×
1.00× is exactly expected
Open access
39%
world 40%
International
17%
world 18%
Agia Olga Hospital

What is Agia Olga 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
MedicineField #4,771 of 8,541 13.0%64 #7222
Health SciencesDomain #6,199 of 9,902 12.9%66 #8580

Each strip is that field's whole ranked pool, with the notch where Agia Olga 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 fields of science does Agia Olga Hospital work in?

In 2022-now, 87% of research at Agia Olga Hospital is in Health Sciences, 7% in Life Sciences. Its largest fields are Medicine (83%), Biochemistry, Genetics and Molecular Biology (5%), Health Professions (3%). It does 3.4× the world's share of Health Sciences.

Health Sciences: 76 fractional works · 86.6% of its workMedicine: 73 fractional works · 82.7% of its workSurgery: 14 fractional works · 16.4% of its workOncology: 9 fractional works · 10.3% of its workPulmonary and Respiratory Medicine: 9 fractional works · 10.0% of its workEpidemiology: 6 fractional works · 6.7% of its workCardiology and Cardiovascular Medicine: 5 fractional works · 5.9% of its workPublic Health, Environmental and Occupational Health: 4 fractional works · 4.5% of its workInfectious Diseases: 3 fractional works · 3.4% of its workRadiology, Nuclear Medicine and Imaging: 3 fractional works · 3.2% of its workGastroenterology: 2 fractional works · 2.5% of its workEmergency Medicine: 2 fractional works · 1.8% of its workEndocrinology, Diabetes and Metabolism: 2 fractional works · 1.7% of its workPathology and Forensic Medicine: 2 fractional works · 1.7% of its workOrthopedics and Sports Medicine: 1 fractional works · 1.4% of its workRheumatology: 1 fractional works · 1.3% of its workAnesthesiology and Pain Medicine: 1 fractional works · 1.3% of its workHepatology: 1 fractional works · 1.2% of its workDermatology: 1 fractional works · 1.2% of its workPsychiatry and Mental health: 1 fractional works · 1.1% of its workNeurology: 1 fractional works · 1.0% of its workPhysiology: 1 fractional works · 1.0% of its workOphthalmology: 1 fractional works · 0.9% of its workObstetrics and Gynecology: 1 fractional works · 0.6% of its workPediatrics, Perinatology and Child Health: 1 fractional works · 0.6% of its workUrology: 0 fractional works · 0.5% of its workOtorhinolaryngology: 0 fractional works · 0.4% of its workCritical Care and Intensive Care Medicine: 0 fractional works · 0.3% of its workReproductive Medicine: 0 fractional works · 0.3% of its workInternal Medicine: 0 fractional works · 0.3% of its workRehabilitation: 0 fractional works · 0.3% of its workNephrology: 0 fractional works · 0.2% of its workHematology: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.5% of its workHealth Professions: 2 fractional works · 2.5% of its workGeneral Health Professions: 1 fractional works · 1.0% of its workEmergency Medical Services: 0 fractional works · 0.6% of its workSpeech and Hearing: 0 fractional works · 0.4% of its workSmaller subfields together: 1 fractional works · 0.6% of its workNursing: 1 fractional works · 1.3% of its workNutrition and Dietetics: 1 fractional works · 0.9% of its workResearch and Theory: 0 fractional works · 0.4% of its workLife Sciences: 6 fractional works · 7.0% of its workBiochemistry, Genetics and Molecular Biology: 4 fractional works · 5.1% of its workMolecular Biology: 2 fractional works · 1.9% of its workGenetics: 1 fractional works · 1.4% of its workCancer Research: 0 fractional works · 0.5% of its workClinical Biochemistry: 0 fractional works · 0.5% of its workCell Biology: 0 fractional works · 0.4% of its workBiophysics: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.2% of its workImmunology and Microbiology: 1 fractional works · 1.0% of its workMicrobiology: 1 fractional works · 0.7% of its workImmunology: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.1% of its workNeuroscience: 1 fractional works · 0.7% of its workNeurology: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.5% of its workAgricultural and Biological Sciences: 0 fractional works · 0.2% of its workSocial Sciences: 3 fractional works · 3.6% of its workSocial Sciences: 1 fractional works · 1.3% of its workSociology and Political Science: 1 fractional works · 0.8% of its workHealth: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.1% of its workDecision Sciences: 1 fractional works · 1.1% of its workManagement Science and Operations Research: 1 fractional works · 1.1% of its workBusiness, Management and Accounting: 0 fractional works · 0.4% of its workOrganizational Behavior and Human Resource Management: 0 fractional works · 0.4% of its workEconomics, Econometrics and Finance: 0 fractional works · 0.4% of its workEconomics and Econometrics: 0 fractional works · 0.4% of its workPsychology: 0 fractional works · 0.3% of its workArts and Humanities: 0 fractional works · 0.1% of its workPhysical Sciences: 3 fractional works · 2.9% of its workEngineering: 2 fractional works · 1.9% of its workBiomedical Engineering: 1 fractional works · 1.5% of its workSmaller subfields together: 0 fractional works · 0.4% of its workComputer Science: 0 fractional works · 0.5% of its workComputer Science Applications: 0 fractional works · 0.4% of its workSmaller subfields together: 0 fractional works · 0.2% of its workEnvironmental Science: 0 fractional works · 0.4% of its workWater Science and Technology: 0 fractional works · 0.4% of its workMathematics: 0 fractional works · 0.1% of its workALL ITS WORKAgia OlgaHospital88fractional works, 2022-now
Life Sciences7%Physical Sciences3%Health Sciences87%Social Sciences4%

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 18 fields, with their numbers
    1. Medicine7382.7%
    2. Health Professions22.5%
    3. Nursing11.3%
    4. Veterinary00.0%
    1. Biochemistry, Genetics and Molecular Biology45.1%
    2. Immunology and Microbiology11.0%
    3. Neuroscience10.7%
    4. Agricultural and Biological Sciences00.2%
    1. Social Sciences11.3%
    2. Decision Sciences11.1%
    3. Business, Management and Accounting00.4%
    4. Economics, Econometrics and Finance00.4%
    5. Psychology00.3%
    6. Arts and Humanities00.1%
    1. Engineering21.9%
    2. Computer Science00.5%
    3. Environmental Science00.4%
    4. Mathematics00.1%
All of science, and how each field's share has moved since 1950: the Science domain explorer

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, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.95× its world share, 4 worksBiochemistry, Geneti…Immunology and Microbiology: 1.05× its world share, 1 worksImmunology and Micro…Neuroscience: 0.42× its world share, 1 worksNeuroscienceComputer Science: 0.07× its world share, 0 worksComputer ScienceEngineering: 0.13× its world share, 2 worksEngineeringEnvironmental Science: 0.08× its world share, 0 worksEnvironmental ScienceMathematics: 0.07× its world share, 0 worksMathematicsHealth Professions: 0.95× its world share, 2 worksHealth ProfessionsMedicine: 4.30× its world share, 73 worksMedicineNursing: 2.68× its world share, 1 worksNursingVeterinary: 0.17× its world share, 0 worksVeterinaryArts and Humanities: 0.04× its world share, 0 worksArts and HumanitiesBusiness, Management and Accounting: 0.12× its world share, 0 worksBusiness, Management…Decision Sciences: 1.18× its world share, 1 worksDecision SciencesEconomics, Econometrics and Finance: 0.16× its world share, 0 worksEconomics, Econometr…Psychology: 0.09× its world share, 0 worksPsychologySocial Sciences: 0.10× 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 18 fields, with their numbers
  1. Medicine4.30×73 works
  2. Nursing2.68×1 works
  3. Decision Sciences1.18×1 works
  4. Immunology and Microbiology1.05×1 works
  5. Biochemistry, Genetics and Molecular Biology0.95×4 works
  6. Health Professions0.95×2 works
  7. Neuroscience0.42×1 works
  8. Veterinary0.17×0 works
  9. Economics, Econometrics and Finance0.16×0 works
  10. Engineering0.13×2 works
  11. Business, Management and Accounting0.12×0 works
  12. Social Sciences0.10×1 works
  13. Psychology0.09×0 works
  14. Environmental Science0.08×0 works
  15. Computer Science0.07×0 works
  16. Mathematics0.07×0 works
  17. Agricultural and Biological Sciences0.04×0 works
  18. Arts and Humanities0.04×0 works

Who are the top researchers at Agia Olga Hospital?

Ranked on the quality score, Christos Dervenis, Nikolaos I Nikolaou and Charikleia Nikolaou lead among researchers whose main affiliation is Agia Olga Hospital.

  1. 1 Christos Dervenis Greece · #53,968 worldwide 48k citations · 325 works
  2. 2 Nikolaos I Nikolaou Greece · #85,791 worldwide 16k citations · 166 works
  3. 3 Charikleia Nikolaou Greece · #1,015,108 worldwide 944 citations · 25 works
  4. 4 Aikaterini Masgala Greece · #1,372,322 worldwide 1.2k citations · 37 works
  5. 5 John A. Karagiannis Greece · #1,598,839 worldwide 2.9k citations · 34 works
  6. 6 Spiros Delis Greece · #2,296,877 worldwide 1.8k citations · 104 works
  7. 7 Maria Katsiari Greece · #2,471,176 worldwide 519 citations · 24 works
  8. 8 Konstantina D. Paraskeva Greece · #2,736,467 worldwide 2.9k citations · 82 works
  9. 9 Dimitrios N. Staramos Greece · #2,749,348 worldwide 496 citations · 15 works
  10. 10 John A. Papailiou Greece · #2,960,023 worldwide 617 citations · 28 works
All ranked researchers at Agia Olga Hospital

What are the most cited papers from Agia Olga Hospital?

The most cited paper from Agia Olga Hospital is "Classification of acute pancreatitis—2012: revision of the Atlanta classification and definitions by international consensus" (Peter A. Banks, Thomas L. Bollen, Christos Dervenis et al., 2012), with 7,229 citations. Next come "The 2016 update of the International Study Group (ISGPS) definition and grading of postoperative pancreatic fistula: 11 Years After" (4,323) and "Postoperative pancreatic fistula: An international study group (ISGPF) definition" (4,297).

Most cited papers
#PaperReleasedCitations
1 Classification of acute pancreatitis—2012: revision of the Atlanta classification and definitions by international consensus Peter A. Banks, Thomas L. Bollen, Christos Dervenis et al. · Gut Open access 25 Oct 2012 7,229
2 The 2016 update of the International Study Group (ISGPS) definition and grading of postoperative pancreatic fistula: 11 Years After Claudio Bassi et al. · Surgery Open access 28 Dec 2016 4,323
3 Postoperative pancreatic fistula: An international study group (ISGPF) definition Claudio Bassi, Christos Dervenis, Giovanni Butturini et al. · Surgery Jul 2005 4,297
4 Delayed gastric emptying (DGE) after pancreatic surgery: A suggested definition by the International Study Group of Pancreatic Surgery (ISGPS) Moritz N. Wente, Claudio Bassi, Christos Dervenis et al. · Surgery Nov 2007 3,066
5 A Randomized Trial of Chemoradiotherapy and Chemotherapy after Resection of Pancreatic Cancer John P. Neoptolemos, Deborah D. Stocken, Helmut Friess et al. · New England Journal of Medicine 17 Mar 2004 2,725
All 58 most cited papers, with filters and sorting

Which keywords describe research at Agia Olga Hospital?

By fractional works in 2022-now, weighted toward what it does more of than the world: Epidemiology, Guidelines, Risk Factors, Chemotherapy, Mortality, Neoadjuvant Therapy, Clinical Practice Guidelines and Pathogenesis.

▲ 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. Epidemiology16▲ 4.6×41 topics
  2. Guidelines6▲ 15×10 topics
  3. Risk Factors6▲ 6.2×15 topics
  4. Chemotherapy5▲ 7.9×9 topics
  5. Mortality5▲ 9.8×7 topics
  6. Inflammation5▲ 2.5×27 topics
  7. Neoadjuvant Therapy5▲ 23×5 topics
  8. Clinical Practice Guidelines5▲ 9.8×10 topics
  9. Pathogenesis4▲ 9.6×7 topics
  10. Prevention4▲ 12×6 topics
  11. Treatment4▲ 4.0×15 topics
  12. Surgical Management4▲ 11×12 topics
  13. Cardiovascular Disease4▲ 3.8×18 topics
  14. Immunotherapy4▲ 6.0×4 topics
  15. Virulence Factors4▲ 30×4 topics
  16. Cholangiocarcinoma4▲ 49×2 topics
  17. Tumor Microenvironment3▲ 8.4×4 topics
  18. Necrotizing Fasciitis3▲ 119×1 topic
  19. Streptococcus Pyogenes3▲ 119×1 topic
  20. Cholecystitis3▲ 77×1 topic
  21. Colorectal Cancer3▲ 43×2 topics
  22. ERCP3▲ 77×1 topic
  23. Management3▲ 4.3×13 topics
  24. Screening3▲ 35×2 topics
  25. Pancreatic Cancer3▲ 30×1 topic
  26. Surgical Complications3▲ 41×1 topic
  27. Colonoscopy3▲ 74×1 topic
  28. Complications3▲ 6.3×10 topics
  29. Polyps3▲ 74×1 topic
  30. Molecular Characterization2▲ 15×4 topics
  31. Survival Analysis2▲ 9.5×5 topics
  32. Prognostic Factors2▲ 5.7×7 topics
  33. Genetic Mutations2▲ 5.5×9 topics
  34. Rehabilitation2▲ 5.8×5 topics
  35. Surgery2▲ 6.7×6 topics
  36. Clinical Guidelines2▲ 7.0×8 topics
  37. Endoscopic Resection2▲ 21×2 topics
  38. Gastric Cancer2▲ 18×3 topics
  39. Myocardial Infarction2▲ 8.6×3 topics
  40. Preoperative Chemoradiotherapy2▲ 26×2 topics

Which research topics does Agia Olga Hospital publish most on?

By volume in 2022-now: Streptococcal Infections and Treatments, Gallbladder and Bile Duct Disorders, Pancreatic and Hepatic Oncology Research and Colorectal Cancer Screening and Detection.

Streptococcal Infections and Treatments: 3 fractional worksGallbladder and Bile Duct Disorders: 3 fractional worksPancreatic and Hepatic O…3Pancreatic and Hepatic Oncology Research: 3 fractional worksColorectal Cancer Screen…3Colorectal Cancer Screening and Detection: 3 fractional worksPancreatitis Pathology and Treatment: 2 fractional worksGastrointestinal Bleeding Diagnosis and Treatment: 1 fractional worksShoulder Injury and Trea…1Shoulder Injury and Treatment: 1 fractional worksGastric Cancer Management and Outcomes: 1 fractional worksColorectal Cancer Surgical Treatments: 1 fractional worksComplex Systems and Decision Making: 1 fractional works
Public Health, Environmental and Occupational HealthPulmonary and Respiratory MedicineOncologySurgery2 others

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

  1. 1 Streptococcal Infections and Treatments Public Health, Environmental and Occupational Health 3 works
  2. 2 Gallbladder and Bile Duct Disorders Pulmonary and Respiratory Medicine 3 works
  3. 3 Pancreatic and Hepatic Oncology Research Oncology 3 works
  4. 4 Colorectal Cancer Screening and Detection Oncology 3 works
  5. 5 Pancreatitis Pathology and Treatment Surgery 2 works
  6. 6 Gastrointestinal Bleeding Diagnosis and Treatment Gastroenterology 1 works
  7. 7 Shoulder Injury and Treatment Surgery 1 works
  8. 8 Gastric Cancer Management and Outcomes Pulmonary and Respiratory Medicine 1 works
  9. 9 Colorectal Cancer Surgical Treatments Oncology 1 works
  10. 10 Complex Systems and Decision Making Management Science and Operations Research 1 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 available39.4%not open60.6%

World: 40% of research is openly available.

with international co-authors16.8%domestic only83.2%

World: 18% is written across borders.

How has Agia Olga Hospital's research output changed?

Output in 2022-2025 was 37% lower 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 Agia Olga Hospital as a percentage of every work published that year, 0.00024% in 2024.

still counting0.00050%0.0010%0.0015%Agia Olga Hospital0.00051% in 202519801990200020102020

Fractional works of Agia Olga 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%Agia Olga Hospital13.6% in 2025all institutions10.0% in 202520102020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 13.6% in 2025.

Other research institutions in Athens

All research institutions in Athens

Share Agia Olga Hospital's ranking

Agia Olga Hospital on Science Explorer

A card with Agia Olga Hospital's standing and the fields it leads in, for a post or a slide. A link to this page previews as the same card.

Download the card

1200 × 630 PNG, sized for social posts, drawn from the latest snapshot.

Badges for a website1Each links back here and updates with every snapshot

Research measures only: rankings here say nothing about teaching, admissions or student experience. Comparable institutions and collaboration partners have tabs of their own, above.

Discussion

Ask a question or share a note about Agia Olga Hospital. Keep it to the research: no personal attacks, advertising or links. Any reader can report a post, which collapses it for everyone until it is opened.