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Hospital / health system · Sofia · Bulgaria

Alexandrovska Hospital

In research, Alexandrovska Hospital stands highest in Medicine (#8,425 of 10,443 worldwide) and Health Sciences (#9,784 of 11,982 worldwide), 2022–2025. Relative to its size it is most specialised in Surgery — Surgery is 6.0× its share of world research.

alexandrovska.com/display.php?bg/about-usROR OpenAlex
World rank, 2022–2025
#19,833
of 28,054 · #27,840 all time
Rank in Bulgaria
#56
of 92
Research works
745
▲ 7% vs 2013–17
Citations
5.4k
7.3 per fractional work
Top-10% rate
6.8%
record average 16.5%
Open access
56%
world 28%

What is Alexandrovska 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 #8,425 of 10,443 5.8%115 #9565
Health SciencesDomain #9,784 of 11,982 6.5%119 #12278

Each strip is that field’s whole ranked pool, with the notch where Alexandrovska 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).

What does Alexandrovska Hospital specialise in?

Where its research is concentrated relative to its size: Surgery takes 6.0× the share of its output that it takes of world research.

  1. SurgerySubfield · 21.1 works6.0×
← 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, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.29× its world share, 10 worksBiochemistry, Geneti…Immunology and Microbiology: 3.89× its world share, 6 worksImmunology and Micro…Neuroscience: 1.66× its world share, 4 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 0.46× its world share, 0 worksPharmacology, Toxico…Chemistry: 0.23× its world share, 1 worksChemistryComputer Science: 0.07× its world share, 1 worksComputer ScienceEngineering: 0.09× its world share, 2 worksEngineeringEnvironmental Science: 0.04× its world share, 0 worksEnvironmental ScienceMaterials Science: 0.11× its world share, 1 worksMaterials ScienceMathematics: 0.04× its world share, 0 worksMathematicsPhysics and Astronomy: 0.20× its world share, 1 worksPhysics and AstronomyDentistry: 0.42× its world share, 0 worksDentistryHealth Professions: 0.65× its world share, 2 worksHealth ProfessionsMedicine: 4.01× its world share, 115 worksMedicineNursing: 1.00× its world share, 1 worksNursingArts and Humanities: 0.15× its world share, 1 worksArts and HumanitiesBusiness, Management and Accounting: 0.01× its world share, 0 worksBusiness, Management…Decision Sciences: 0.18× its world share, 0 worksDecision SciencesEconomics, Econometrics and Finance: 0.18× its world share, 1 worksEconomics, Econometr…Psychology: 0.53× its world share, 2 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, 4.0×. Every wedge is a field page.

Who are the top researchers at Alexandrovska Hospital?

Ranked on the composite score, D Mladenov, Guergana Petrova and N Iarŭmov lead among researchers whose main affiliation is Alexandrovska Hospital.

  1. 1 D Mladenov Bulgaria · #1,054,833 worldwide 2 citations · 21 works
  2. 2 Guergana Petrova Bulgaria · #1,159,168 worldwide 4 citations · 15 works
  3. 3 N Iarŭmov Bulgaria · #1,168,923 worldwide 2 citations · 35 works
  4. 4 Svilen Maslyankov Bulgaria · #1,181,863 worldwide 3 citations · 16 works
  5. 5 S Baev Bulgaria · #1,341,152 worldwide 3 citations · 16 works
  6. 6 Milena Ivanova Bulgaria · #1,577,155 worldwide 6 citations · 19 works
All ranked researchers at Alexandrovska Hospital

Which keywords describe research at Alexandrovska Hospital?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Epidemiology, Diagnosis, Treatment, Management, Genetic Mutations, Cardiovascular Disease, Inflammation and Complications.

▲ 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. Epidemiology21▲ 3.5×67 topics
  2. Treatment9▲ 4.8×30 topics
  3. Inflammation8▲ 2.7×31 topics
  4. Diagnosis8▲ 5.9×26 topics
  5. Cardiovascular Disease7▲ 4.1×22 topics
  6. Management6▲ 5.3×17 topics
  7. Quality of Life6▲ 2.7×18 topics
  8. Oxidative Stress6▲ 2.3×26 topics
  9. Complications5▲ 7.0×12 topics
  10. Genetic Mutations5▲ 8.0×15 topics
  11. Chemotherapy5▲ 4.8×13 topics
  12. Pandemic5▲ 3.1×6 topics
  13. Risk Factors5▲ 3.0×20 topics
  14. ACE2 Receptor5▲ 13×3 topics
  15. Guidelines4▲ 6.5×8 topics
  16. Immune Response4▲ 5.2×11 topics
  17. Metabolic Syndrome4▲ 3.6×16 topics
  18. Magnetic Resonance Imaging4▲ 11×6 topics
  19. Pathophysiology4▲ 9.2×7 topics
  20. SARS-CoV-24▲ 8.1×4 topics
  21. Obesity4▲ 3.5×13 topics
  22. Surgical Management4▲ 6.3×12 topics
  23. Atherosclerosis4▲ 8.6×6 topics
  24. Coronary Artery Disease3▲ 20×3 topics
  25. Clinical Practice Guidelines3▲ 4.0×11 topics
  26. Meta-Analysis3▲ 3.7×6 topics
  27. Thrombosis3▲ 7.8×4 topics
  28. Mutation Analysis3▲ 29×2 topics
  29. Surgery3▲ 6.1×4 topics
  30. Clinical Characteristics3▲ 16×2 topics
  31. Children3▲ 8.7×4 topics
  32. Myocardial Infarction3▲ 8.6×5 topics
  33. Prognosis3▲ 6.1×9 topics
  34. Bronchiectasis3▲ 69×1 topic
  35. CFTR3▲ 69×1 topic
  36. Cystic Fibrosis3▲ 28×2 topics
  37. Pulmonary Infections3▲ 35×2 topics
  38. Survival Analysis3▲ 6.8×5 topics
  39. Antiviral Treatment3▲ 16×1 topic
  40. Cytokine Storm3▲ 16×1 topic

Which research topics does Alexandrovska Hospital publish most on?

By volume in 2022–2025: Cystic Fibrosis Research Advances, COVID-19 Clinical Research Studies, Cardiac Imaging and Diagnostics and Appendicitis Diagnosis and Management.

Cystic Fibrosis Research…3Cystic Fibrosis Research Advances: 3 fractional worksCOVID-19 Clinical Resear…3COVID-19 Clinical Research Studies: 3 fractional worksCardiac Imaging and Diag…2Cardiac Imaging and Diagnostics: 2 fractional worksAppendicitis Diagnosis a…2Appendicitis Diagnosis and Management: 2 fractional worksIntracranial Aneurysms: Treatment and Complications: 2 fractional worksCerebrovascular and Carotid Artery Diseases: 2 fractional worksCardiovascular Disease a…2Cardiovascular Disease and Adiposity: 2 fractional worksDiverticular Disease and Complications: 1 fractional worksPancreatitis Pathology and Treatment: 1 fractional worksHead and Neck Cancer Stu…1Head and Neck Cancer Studies: 1 fractional works
Pulmonary and Respiratory MedicineInfectious DiseasesRadiology, Nuclear Medicine and ImagingEmergency Medicine4 others

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

  1. 1 Cystic Fibrosis Research Advances Pulmonary and Respiratory Medicine 3 works
  2. 2 COVID-19 Clinical Research Studies Infectious Diseases 3 works
  3. 3 Cardiac Imaging and Diagnostics Radiology, Nuclear Medicine and Imaging 2 works
  4. 4 Appendicitis Diagnosis and Management Emergency Medicine 2 works
  5. 5 Intracranial Aneurysms: Treatment and Complications Neurology 2 works
  6. 6 Cerebrovascular and Carotid Artery Diseases Pulmonary and Respiratory Medicine 2 works
  7. 7 Cardiovascular Disease and Adiposity Cardiology and Cardiovascular Medicine 2 works
  8. 8 Diverticular Disease and Complications Surgery 1 works
  9. 9 Pancreatitis Pathology and Treatment Surgery 1 works
  10. 10 Head and Neck Cancer Studies Otorhinolaryngology 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 available55.5%not open44.5%

World: 28% of research is openly available.

with international co-authors20.5%domestic only79.5%

World: 19% is written across borders.

How has Alexandrovska Hospital's research output changed?

Output in 2018–2022 was 7% higher than in 2013–2017.

199520002005201020152020
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 Sofia

All research institutions in Sofia

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.