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Hospital / health system · Varna · Bulgaria

University Hospital St. Marina

In research, University Hospital St. Marina stands highest in Medicine (#7,140 of 10,443 worldwide) and Health Sciences (#8,438 of 11,982 worldwide), 2022–2025.

svetamarina.comROR OpenAlex
World rank, 2022–2025
#20,355
of 28,054 · #31,648 all time
Rank in Bulgaria
#57
of 92
Research works
777
▲ 33% vs 2013–17
Citations
2.5k
3.2 per fractional work
Top-10% rate
3.9%
record average 16.5%
Open access
75%
world 28%

What is University Hospital St. Marina 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 #7,140 of 10,443 2.9%180 #12735
Health SciencesDomain #8,438 of 11,982 3.4%190 #15326

Each strip is that field’s whole ranked pool, with the notch where University Hospital St. Marina 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).

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: 0.08× its world share, 1 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 1.88× its world share, 25 worksBiochemistry, Geneti…Immunology and Microbiology: 3.16× its world share, 8 worksImmunology and Micro…Neuroscience: 1.14× its world share, 5 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.04× its world share, 1 worksPharmacology, Toxico…Chemistry: 0.17× its world share, 1 worksChemistryComputer Science: 0.10× its world share, 2 worksComputer ScienceEarth and Planetary Sciences: 0.03× its world share, 0 worksEarth and Planetary …Engineering: 0.14× its world share, 5 worksEngineeringEnvironmental Science: 0.12× its world share, 2 worksEnvironmental ScienceMaterials Science: 0.09× its world share, 1 worksMaterials ScienceMathematics: 0.11× its world share, 0 worksMathematicsPhysics and Astronomy: 0.07× its world share, 0 worksPhysics and AstronomyDentistry: 2.01× its world share, 2 worksDentistryHealth Professions: 0.98× its world share, 6 worksHealth ProfessionsMedicine: 3.78× its world share, 180 worksMedicineNursing: 0.70× its world share, 1 worksNursingBusiness, Management and Accounting: 0.04× its world share, 0 worksBusiness, Management…Economics, Econometrics and Finance: 0.34× its world share, 2 worksEconomics, Econometr…Psychology: 0.35× its world share, 3 worksPsychologySocial Sciences: 0.10× its world share, 3 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Medicine, 3.8×. Every wedge is a field page.

Who are the top researchers at University Hospital St. Marina?

Ranked on the composite score, Alexander Hinev, Nikolay Conev and I Tomov lead among researchers whose main affiliation is University Hospital St. Marina.

  1. 1 Alexander Hinev Bulgaria · #1,192,121 worldwide 7 citations · 20 works
  2. 2 Nikolay Conev Bulgaria · #1,406,274 worldwide 14 citations · 26 works
  3. 3 I Tomov Bulgaria · #1,443,914 worldwide 1 citations · 19 works
  4. 4 Elitsa Encheva Bulgaria · #1,618,216 worldwide 1 citations · 15 works
All ranked researchers at University Hospital St. Marina

Which keywords describe research at University Hospital St. Marina?

By fractional works in 2022–2025, weighted toward what it does more of than the world: Epidemiology, Inflammation, Cardiovascular Disease, Cancer, Treatment, Chronic Kidney Disease, Quality of Life and Diagnosis.

▲ 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. Epidemiology38▲ 3.9×75 topics
  2. Inflammation22▲ 4.2×40 topics
  3. Cardiovascular Disease16▲ 5.7×21 topics
  4. Cancer15▲ 4.4×29 topics
  5. Quality of Life14▲ 3.9×25 topics
  6. Treatment14▲ 4.6×29 topics
  7. Diagnosis12▲ 5.1×23 topics
  8. Chronic Kidney Disease10▲ 17×7 topics
  9. Mortality10▲ 6.8×7 topics
  10. Biomarkers9▲ 5.4×10 topics
  11. Immune Response9▲ 6.5×12 topics
  12. Chemotherapy9▲ 5.1×19 topics
  13. Surgical Management9▲ 8.4×16 topics
  14. Clinical Trials8▲ 4.9×12 topics
  15. Metabolic Syndrome8▲ 4.1×15 topics
  16. Prognostic Factors8▲ 7.5×13 topics
  17. Immunotherapy8▲ 4.5×13 topics
  18. Management8▲ 3.9×18 topics
  19. Global Burden7▲ 5.6×12 topics
  20. Prognosis6▲ 8.0×8 topics
  21. Clinical Practice Guidelines6▲ 4.6×13 topics
  22. Genetic Mutations6▲ 5.7×17 topics
  23. Hemodialysis6▲ 32×2 topics
  24. Guidelines6▲ 5.2×12 topics
  25. Surgery6▲ 6.8×6 topics
  26. Radiotherapy6▲ 6.1×11 topics
  27. Pathogenesis6▲ 4.5×11 topics
  28. Insulin Resistance6▲ 5.0×8 topics
  29. Infection5▲ 8.5×4 topics
  30. Metastasis5▲ 5.7×9 topics
  31. Sepsis5▲ 11×5 topics
  32. Hepatocellular Carcinoma5▲ 8.8×3 topics
  33. Pathophysiology5▲ 6.2×6 topics
  34. Thrombosis5▲ 6.6×6 topics
  35. Dialysis4▲ 36×1 topic
  36. Peritoneal Dialysis4▲ 36×1 topic
  37. Autoantibodies4▲ 7.3×6 topics
  38. Critical Care4▲ 7.3×5 topics
  39. Genetic Variants4▲ 9.7×6 topics
  40. Molecular Classification4▲ 11×4 topics

Which research topics does University Hospital St. Marina publish most on?

By volume in 2022–2025: Dialysis and Renal Disease Management, Liver Disease Diagnosis and Treatment, COVID-19 and healthcare impacts and COVID-19 Clinical Research Studies.

Dialysis and Renal Disea…4Dialysis and Renal Disease Management: 4 fractional worksLiver Disease Diagnosis …3Liver Disease Diagnosis and Treatment: 3 fractional worksCOVID-19 and healthcare …3COVID-19 and healthcare impacts: 3 fractional worksCOVID-19 Clinical Resear…3COVID-19 Clinical Research Studies: 3 fractional worksBiomarkers in Disease Mechanisms: 3 fractional worksGlioma Diagnosis and Treatment: 2 fractional worksInflammasome and immune …2Inflammasome and immune disorders: 2 fractional worksRheumatoid Arthritis Research and Therapies: 2 fractional worksSepsis Diagnosis and Treatment: 2 fractional worksChronic Kidney Disease a…2Chronic Kidney Disease and Diabetes: 2 fractional works
NephrologyEpidemiologyOncologyInfectious Diseases4 others

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

  1. 1 Dialysis and Renal Disease Management Nephrology 4 works
  2. 2 Liver Disease Diagnosis and Treatment Epidemiology 3 works
  3. 3 COVID-19 and healthcare impacts Oncology 3 works
  4. 4 COVID-19 Clinical Research Studies Infectious Diseases 3 works
  5. 5 Biomarkers in Disease Mechanisms Immunology 3 works
  6. 6 Glioma Diagnosis and Treatment Genetics 2 works
  7. 7 Inflammasome and immune disorders Molecular Biology 2 works
  8. 8 Rheumatoid Arthritis Research and Therapies Rheumatology 2 works
  9. 9 Sepsis Diagnosis and Treatment Epidemiology 2 works
  10. 10 Chronic Kidney Disease and Diabetes Nephrology 2 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 available75.0%not open25.0%

World: 28% of research is openly available.

with international co-authors9.3%domestic only90.7%

World: 19% is written across borders.

How has University Hospital St. Marina's research output changed?

Output in 2018–2022 was 33% 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 Varna

All research institutions in Varna

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.