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Hospital / health system · Sofia · Bulgaria

Acibadem City Clinic

In research, Acibadem City Clinic stands highest in Medicine (#6,888 of 8,541 worldwide) and Health Sciences (#8,206 of 9,902 worldwide), 2022-now. Relative to its size it is most specialised in Surgery (Surgery is 8.1× its share of world research).

acibademcityclinic.bg/enROR OpenAlex
World rank, 2022-now
#21,621
of 22,385 · #33,790 all time
Rank in Bulgaria
#63
of 64
Research works
241
▲ 8% vs 2018-21
Citations
1.1k
4.5 per fractional work
Top-10% rate
2.5%
all institutions 10.0%
vs its own fields
0.88×
1.00× is exactly expected
Open access
64%
world 40%
International
16%
world 18%
Acibadem City Clinic

What is Acibadem City Clinic 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 #6,888 of 8,541 1.9%94 #12108
Health SciencesDomain #8,206 of 9,902 1.9%95 #13970

Each strip is that field's whole ranked pool, with the notch where Acibadem City Clinic 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 Acibadem City Clinic work in?

In 2022-now, 90% of research at Acibadem City Clinic is in Health Sciences, 5% in Life Sciences. Its largest fields are Medicine (89%), Engineering (4%), Biochemistry, Genetics and Molecular Biology (3%). It does 3.6× the world's share of Health Sciences.

Health Sciences: 107 fractional works · 89.9% of its workMedicine: 106 fractional works · 88.5% of its workSurgery: 23 fractional works · 19.0% of its workCardiology and Cardiovascular Medicine: 18 fractional works · 14.7% of its workPulmonary and Respiratory Medicine: 16 fractional works · 13.5% of its workOncology: 7 fractional works · 5.6% of its workEpidemiology: 6 fractional works · 5.3% of its workRadiology, Nuclear Medicine and Imaging: 4 fractional works · 3.5% of its workPathology and Forensic Medicine: 4 fractional works · 2.9% of its workDermatology: 3 fractional works · 2.8% of its workRheumatology: 3 fractional works · 2.2% of its workHepatology: 2 fractional works · 1.8% of its workInfectious Diseases: 2 fractional works · 1.8% of its workNeurology: 2 fractional works · 1.7% of its workPublic Health, Environmental and Occupational Health: 2 fractional works · 1.5% of its workPhysiology: 1 fractional works · 1.2% of its workGenetics: 1 fractional works · 1.1% of its workPharmacology: 1 fractional works · 0.9% of its workInternal Medicine: 1 fractional works · 0.8% of its workNephrology: 1 fractional works · 0.7% of its workPsychiatry and Mental health: 1 fractional works · 0.6% of its workHematology: 1 fractional works · 0.6% of its workEndocrinology, Diabetes and Metabolism: 1 fractional works · 0.6% of its workGeriatrics and Gerontology: 1 fractional works · 0.6% of its workOtorhinolaryngology: 1 fractional works · 0.5% of its workImmunology and Allergy: 1 fractional works · 0.5% of its workOphthalmology: 1 fractional works · 0.5% of its workObstetrics and Gynecology: 1 fractional works · 0.5% of its workPediatrics, Perinatology and Child Health: 1 fractional works · 0.5% of its workEmergency Medicine: 1 fractional works · 0.4% of its workReproductive Medicine: 1 fractional works · 0.4% of its workGastroenterology: 0 fractional works · 0.4% of its workComplementary and alternative medicine: 0 fractional works · 0.3% of its workRehabilitation: 0 fractional works · 0.2% of its workSmaller subfields together: 1 fractional works · 0.8% of its workHealth Professions: 1 fractional works · 0.6% of its workSpeech and Hearing: 0 fractional works · 0.2% of its workSmaller subfields together: 0 fractional works · 0.4% of its workDentistry: 1 fractional works · 0.4% of its workNursing: 0 fractional works · 0.3% of its workNutrition and Dietetics: 0 fractional works · 0.3% of its workVeterinary: 0 fractional works · 0.1% of its workLife Sciences: 7 fractional works · 5.5% of its workBiochemistry, Genetics and Molecular Biology: 3 fractional works · 2.8% of its workCancer Research: 1 fractional works · 0.9% of its workGenetics: 1 fractional works · 0.8% of its workMolecular Biology: 1 fractional works · 0.7% of its workSmaller subfields together: 0 fractional works · 0.4% of its workImmunology and Microbiology: 2 fractional works · 1.6% of its workImmunology: 2 fractional works · 1.5% of its workSmaller subfields together: 0 fractional works · 0.1% of its workPharmacology, Toxicology and Pharmaceutics: 1 fractional works · 0.5% of its workPharmaceutical Science: 1 fractional works · 0.5% of its workSmaller subfields together: 0 fractional works · 0.1% of its workNeuroscience: 1 fractional works · 0.5% of its workCellular and Molecular Neuroscience: 0 fractional works · 0.3% of its workSmaller subfields together: 0 fractional works · 0.2% of its workAgricultural and Biological Sciences: 0 fractional works · 0.0% of its workPhysical Sciences: 5 fractional works · 4.2% of its workEngineering: 4 fractional works · 3.6% of its workBiomedical Engineering: 3 fractional works · 2.6% of its workElectrical and Electronic Engineering: 1 fractional works · 0.8% of its workSmaller subfields together: 0 fractional works · 0.2% of its workComputer Science: 0 fractional works · 0.3% of its workComputer Vision and Pattern Recognition: 0 fractional works · 0.3% of its workPhysics and Astronomy: 0 fractional works · 0.1% of its workEarth and Planetary Sciences: 0 fractional works · 0.1% of its workChemistry: 0 fractional works · 0.1% of its workEnvironmental Science: 0 fractional works · 0.0% of its workSocial Sciences: 1 fractional works · 0.4% of its workPsychology: 0 fractional works · 0.2% of its workSocial Sciences: 0 fractional works · 0.2% of its workEconomics, Econometrics and Finance: 0 fractional works · 0.1% of its workALL ITS WORKAcibadem CityClinic119fractional works, 2022-now
Life Sciences5%Physical Sciences4%Health Sciences90%Social Sciences0%

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 21 fields, with their numbers
    1. Medicine10688.5%
    2. Health Professions10.6%
    3. Dentistry10.4%
    4. Nursing00.3%
    5. Veterinary00.1%
    1. Biochemistry, Genetics and Molecular Biology32.8%
    2. Immunology and Microbiology21.6%
    3. Pharmacology, Toxicology and Pharmaceutics10.5%
    4. Neuroscience10.5%
    5. Agricultural and Biological Sciences00.0%
    1. Engineering43.6%
    2. Computer Science00.3%
    3. Physics and Astronomy00.1%
    4. Earth and Planetary Sciences00.1%
    5. Chemistry00.1%
    6. Environmental Science00.0%
    7. Mathematics00.0%
    8. Materials Science00.0%
    1. Psychology00.2%
    2. Social Sciences00.2%
    3. Economics, Econometrics and Finance00.1%
All of science, and how each field's share has moved since 1950: the Science domain explorer

What does Acibadem City Clinic specialise in?

Where its research is concentrated relative to its size: Surgery takes 8.1× the share of its output that it takes of world research.

  1. SurgerySubfield · 22.7 works8.1×
← 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: 0.01× its world share, 0 worksAgricultural and Bio…Biochemistry, Genetics and Molecular Biology: 0.52× its world share, 3 worksBiochemistry, Geneti…Immunology and Microbiology: 1.57× its world share, 2 worksImmunology and Micro…Neuroscience: 0.32× its world share, 1 worksNeurosciencePharmacology, Toxicology and Pharmaceutics: 1.52× its world share, 1 worksPharmacology, Toxico…Chemistry: 0.03× its world share, 0 worksChemistryComputer Science: 0.04× its world share, 0 worksComputer ScienceEarth and Planetary Sciences: 0.04× its world share, 0 worksEarth and Planetary …Engineering: 0.24× its world share, 4 worksEngineeringEnvironmental Science: 0.01× its world share, 0 worksEnvironmental ScienceMathematics: 0.01× its world share, 0 worksMathematicsPhysics and Astronomy: 0.04× its world share, 0 worksPhysics and AstronomyDentistry: 0.89× its world share, 0 worksDentistryHealth Professions: 0.23× its world share, 1 worksHealth ProfessionsMedicine: 4.60× its world share, 106 worksMedicineNursing: 0.57× its world share, 0 worksNursingVeterinary: 0.62× its world share, 0 worksVeterinaryEconomics, Econometrics and Finance: 0.03× its world share, 0 worksEconomics, Econometr…Psychology: 0.06× its world share, 0 worksPsychologySocial Sciences: 0.01× its world share, 0 worksSocial Sciences1×world share
more than its size predictsabout as predictedless

Rings at 0.5×, 1× and 2×. Widest outward: Medicine, 4.6×. Every wedge is a field page.

All 20 fields, with their numbers
  1. Medicine4.60×106 works
  2. Immunology and Microbiology1.57×2 works
  3. Pharmacology, Toxicology and Pharmaceutics1.52×1 works
  4. Dentistry0.89×0 works
  5. Veterinary0.62×0 works
  6. Nursing0.57×0 works
  7. Biochemistry, Genetics and Molecular Biology0.52×3 works
  8. Neuroscience0.32×1 works
  9. Engineering0.24×4 works
  10. Health Professions0.23×1 works
  11. Psychology0.06×0 works
  12. Computer Science0.04×0 works
  13. Earth and Planetary Sciences0.04×0 works
  14. Physics and Astronomy0.04×0 works
  15. Chemistry0.03×0 works
  16. Economics, Econometrics and Finance0.03×0 works
  17. Agricultural and Biological Sciences0.01×0 works
  18. Environmental Science0.01×0 works
  19. Mathematics0.01×0 works
  20. Social Sciences0.01×0 works

Who are the top researchers at Acibadem City Clinic?

Ranked on the quality score, Ivo Spasov Petrov, Ivan N. Staikov and Iana Ivaylova Simova lead among researchers whose main affiliation is Acibadem City Clinic.

  1. 1 Ivo Spasov Petrov Bulgaria · #998,797 worldwide 4.9k citations · 191 works
  2. 2 Ivan N. Staikov Bulgaria · #1,056,928 worldwide 1.1k citations · 42 works
  3. 3 Iana Ivaylova Simova Bulgaria · #3,015,734 worldwide 2.1k citations · 159 works
  4. 4 Assen Dudov Bulgaria · #3,171,447 worldwide 3k citations · 29 works
  5. 5 Petar Polomski Bulgaria · #4,954,843 worldwide 15 citations · 19 works
  6. 6 Damyan Boychev Bulgaria · #5,065,164 worldwide 19 citations · 16 works
  7. 7 Lachezar Grozdinski Bulgaria · #5,191,231 worldwide 156 citations · 26 works
  8. 8 Zoran Iovan Stankov Bulgaria · #6,027,503 worldwide 88 citations · 49 works
  9. 9 Iveta Tasheva Bulgaria · #6,344,554 worldwide 80 citations · 48 works
All ranked researchers at Acibadem City Clinic

What are the most cited papers from Acibadem City Clinic?

The most cited paper from Acibadem City Clinic is "A Randomized, Controlled Trial of the Pan-PPAR Agonist Lanifibranor in NASH" (Sven Francque et al., 2021), with 778 citations. Next come "European Heart Rhythm Association (EHRA) international consensus document on how to prevent, diagnose, and treat cardiac implantable electronic device infections—endorsed by the Heart Rhythm Society (HRS), the Asia Pacific Heart Rhythm Society (APHRS), the Latin American Heart Rhythm Society (LAHRS), International Society for Cardiovascular Infectious Diseases (ISCVID) and the European Society of " (425) and "FAST: a randomised phase II study of zolbetuximab (IMAB362) plus EOX versus EOX alone for first-line treatment of advanced CLDN18.2-positive gastric and gastro-oesophageal adenocarcinoma" (380).

Most cited papers
#PaperReleasedCitations
1 A Randomized, Controlled Trial of the Pan-PPAR Agonist Lanifibranor in NASH Sven Francque et al. · New England Journal of Medicine Open access 20 Oct 2021 778
2 European Heart Rhythm Association (EHRA) international consensus document on how to prevent, diagnose, and treat cardiac implantable electronic device infections—endorsed by the Heart Rhythm Society (HRS), the Asia Pacific Heart Rhythm Society (APHRS), the Latin American Heart Rhythm Society (LAHRS), International Society for Cardiovascular Infectious Diseases (ISCVID) and the European Society of Carina Blomström‐Lundqvist et al. · EP Europace Open access 20 Aug 2019 425
3 FAST: a randomised phase II study of zolbetuximab (IMAB362) plus EOX versus EOX alone for first-line treatment of advanced CLDN18.2-positive gastric and gastro-oesophageal adenocarcinoma Uğur Şahin, Ö. Türeci, Georgy Moiseevich Manikhas et al. · Annals of Oncology Open access 21 Feb 2021 380
4 Placebo-Controlled Trial of an Oral BTK Inhibitor in Multiple Sclerosis Xavier Montalbán, Douglas Lorne Arnold, Martin S. Weber et al. · New England Journal of Medicine Open access 10 May 2019 326
5 Polymer-based or Polymer-free Stents in Patients at High Bleeding Risk Stephan Windecker et al. · New England Journal of Medicine Open access 12 Feb 2020 290
All 58 most cited papers, with filters and sorting

Which keywords describe research at Acibadem City Clinic?

By fractional works in 2022-now, weighted toward what it does more of than the world: Echocardiography, Diagnosis, Epidemiology, Chemotherapy, Heart Failure, Endovascular Repair, Risk Factors and Immunotherapy.

▲ 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. Epidemiology12▲ 2.5×43 topics
  2. Echocardiography8▲ 25×6 topics
  3. Diagnosis8▲ 7.0×19 topics
  4. Risk Factors6▲ 5.0×15 topics
  5. Treatment6▲ 4.5×22 topics
  6. Chemotherapy6▲ 7.0×15 topics
  7. Inflammation6▲ 2.3×18 topics
  8. Heart Failure6▲ 10×8 topics
  9. Immunotherapy6▲ 6.5×14 topics
  10. Endovascular Repair6▲ 53×3 topics
  11. Surgical Management5▲ 10×15 topics
  12. Cholangiocarcinoma5▲ 48×2 topics
  13. Tumor Microenvironment4▲ 8.2×5 topics
  14. Guidelines4▲ 7.2×8 topics
  15. Management4▲ 4.2×14 topics
  16. Complications4▲ 6.7×13 topics
  17. Clinical Practice Guidelines4▲ 6.0×8 topics
  18. Cholecystitis4▲ 72×1 topic
  19. ERCP4▲ 72×1 topic
  20. Neoadjuvant Therapy4▲ 13×4 topics
  21. Sudden Cardiac Death4▲ 36×2 topics
  22. Catheter Ablation4▲ 24×2 topics
  23. Prognostic Factors3▲ 6.7×12 topics
  24. Surgical Aortic-Valve Replacement3▲ 39×1 topic
  25. Transcatheter Aortic-Valve Replacement3▲ 39×1 topic
  26. Liver Transplantation3▲ 22×3 topics
  27. Cardiac Resynchronization Therapy3▲ 62×1 topic
  28. Implantable Cardioverter-Defibrillator3▲ 62×1 topic
  29. Radiofrequency Ablation3▲ 24×2 topics
  30. Aortic Aneurysm3▲ 38×2 topics
  31. Arrhythmias3▲ 26×2 topics
  32. Genetic Susceptibility3▲ 25×4 topics
  33. Myocardial Infarction3▲ 10×6 topics
  34. Radiotherapy3▲ 6.2×9 topics
  35. Aortic Dissection3▲ 55×1 topic
  36. Bicuspid Aortic Valve3▲ 55×1 topic
  37. Pancreatic Cancer3▲ 21×1 topic
  38. Surgical Complications3▲ 29×1 topic
  39. Laparoscopic Surgery3▲ 19×4 topics
  40. Matrix Metalloproteinases3▲ 16×3 topics

Which research topics does Acibadem City Clinic publish most on?

By volume in 2022-now: Gallbladder and Bile Duct Disorders, Cardiac Valve Diseases and Treatments, Cardiac pacing and defibrillation studies and Pancreatic and Hepatic Oncology Research.

Gallbladder and Bile Duc…4Gallbladder and Bile Duct Disorders: 4 fractional worksCardiac Valve Diseases a…3Cardiac Valve Diseases and Treatments: 3 fractional worksCardiac pacing and defib…3Cardiac pacing and defibrillation studies: 3 fractional worksPancreatic and Hepatic O…3Pancreatic and Hepatic Oncology Research: 3 fractional worksAortic Disease and Treatment Approaches: 3 fractional worksPediatric Hepatobiliary Diseases and Treatments: 2 fractional worksCardiac Arrhythmias and …2Cardiac Arrhythmias and Treatments: 2 fractional worksEsophageal and GI Pathol…2Esophageal and GI Pathology: 2 fractional worksAortic aneurysm repair t…2Aortic aneurysm repair treatments: 2 fractional worksSurgical Simulation and …2Surgical Simulation and Training: 2 fractional works
Pulmonary and Respiratory MedicineCardiology and Cardiovascular MedicineOncologySurgery

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

  1. 1 Gallbladder and Bile Duct Disorders Pulmonary and Respiratory Medicine 4 works
  2. 2 Cardiac Valve Diseases and Treatments Cardiology and Cardiovascular Medicine 3 works
  3. 3 Cardiac pacing and defibrillation studies Cardiology and Cardiovascular Medicine 3 works
  4. 4 Pancreatic and Hepatic Oncology Research Oncology 3 works
  5. 5 Aortic Disease and Treatment Approaches Pulmonary and Respiratory Medicine 3 works
  6. 6 Pediatric Hepatobiliary Diseases and Treatments Surgery 2 works
  7. 7 Cardiac Arrhythmias and Treatments Cardiology and Cardiovascular Medicine 2 works
  8. 8 Esophageal and GI Pathology Surgery 2 works
  9. 9 Aortic aneurysm repair treatments Pulmonary and Respiratory Medicine 2 works
  10. 10 Surgical Simulation and Training Surgery 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 available63.7%not open36.3%

World: 40% of research is openly available.

with international co-authors16.5%domestic only83.5%

World: 18% is written across borders.

How has Acibadem City Clinic's research output changed?

Output in 2022-2025 was 8% higher than in 2018-2021.

still counting200020102020
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 Acibadem City Clinic as a percentage of every work published that year, 0.00050% in 2024.

still counting0.00025%0.00050%0.00075%Acibadem City Clinic0.00034% in 2025200020102020

Fractional works of Acibadem City Clinic 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.

5%10%all institutions10.0% in 2024Acibadem City Clinic1.7% in 20242020

Of each year's output, the share that reached the world's 10% most cited for its field and year. Peak 6.5% in 2021.

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Acibadem City Clinic on Science Explorer

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