Charles Oprian
Impact in
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- Cardiac Valve Diseases and Treatments
- Cardiac, Anesthesia and Surgical Outcomes
- Cardiovascular Function and Risk Factors
- Epidemiology top 5%
- Infective Endocarditis Diagnosis and Management
Papers in
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- Cardiac Valve Diseases and Treatments 16
- Cardiac, Anesthesia and Surgical Outcomes 7
- Surgery 7
- Orthopedic Infections and Treatments 2
- Hip and Femur Fractures 2
- Co-authors
- William G. Henderson (18 shared papers)Karl E. Hammermeister (14 shared papers)Gulshan K. Sethi (12 shared papers)Shahbudin H. Rahimtoola (4 shared papers)Frederick L. Grover (6 shared papers)Shukri F. Khuri (11 shared papers)Jennifer Daley (7 shared papers)Katherine S. Virgo (4 shared papers)
- Journals
- Journal of the American College of Cardiology (6 papers)Journal of Thoracic and Cardiovascular Surgery (5 papers)Annals of Surgery (2 papers)Biometrical Journal (1 paper)New England Journal of Medicine (1 paper)
- Partner nations
- United StatesAustraliaBelgium
In The Last Decade
Charles Oprian
28 papers receiving 2.6k citations
Charles Oprian's Hit Papers
Peers
Comparison fields: 5 of 100
- Cardiology and Cardiovascular Medicine 1.5k
- Epidemiology 713
- Surgery 738
- Pulmonary and Respiratory Medicine 513
- Emergency Medicine 108
Countries citing papers authored by Charles Oprian
This map shows the geographic impact of Charles Oprian's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Charles Oprian with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Charles Oprian more than expected).
Fields of papers citing papers by Charles Oprian
This network shows the impact of papers produced by Charles Oprian. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Charles Oprian. The network helps show where Charles Oprian may publish in the future.
Co-authors
The 25 scholars most cited alongside Charles Oprian, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.
All Works
Showing the 20 most-cited of 29 papers — load more, or switch the sort, to bring in the rest.
| # | Work | ||
|---|---|---|---|
| 1 | Outcomes 15 years after valve replacement with a mechanical versus a bioprosthetic valve: final report of the Veterans Affairs randomized trial Hit paper breakdown → | 2000 | 739 |
| 2 | 2000 | 338 | |
| 3 | 1993 | 303 | |
| 4 | 1999 | 209 | |
| 5 | 1990 | 201 | |
| 6 | 1998 | 199 | |
| 7 | 2003 | 118 | |
| 8 | Determinants of the occurrence of and survival from prosthetic valve endocarditis. Experience of the Veterans Affairs Cooperative Study on Valvular Heart Disease. | 1994 | 92 |
| 9 | 1994 | 74 | |
| 10 | 1987 | 69 | |
| 11 | Preoperative identification of patients likely to have left ventricular dysfunction after aortic valve replacement. Participants in the Veterans Administration Cooperative Study on Valvular Heart Disease. | 1989 | 63 |
| 12 | 1987 | 59 | |
| 13 | 2002 | 57 | |
| 14 | 1994 | 48 | |
| 15 | 1991 | 39 | |
| 16 | 1988 | 27 | |
| 17 | 1979 | 19 | |
| 18 | 1989 | 18 | |
| 19 | Comparison of the causes of late death following aortic and mitral valve replacement. VA Co-operative Study on Valvular Heart Disease. | 1994 | 17 |
| 20 | Operative mortality in patients undergoing single valve replacement in teaching institutions--early mortality as a function of resident versus staff surgeon. | 1988 | 13 |
About Charles Oprian
Charles Oprian is a scholar working on Cardiology and Cardiovascular Medicine, Surgery, Epidemiology, Pulmonary and Respiratory Medicine and Emergency Medicine, having authored 29 papers that have together received 2.7k indexed citations. Recurring topics across this work include Cardiac Valve Diseases and Treatments (16 papers), Cardiac, Anesthesia and Surgical Outcomes (7 papers), Infective Endocarditis Diagnosis and Management (6 papers), Orthopedic Infections and Treatments (2 papers), Appendicitis Diagnosis and Management (2 papers), Hip and Femur Fractures (2 papers), Advanced Statistical Methods and Models (1 paper) and Venous Thromboembolism Diagnosis and Management (1 paper). The work is most often cited by research in Cardiology and Cardiovascular Medicine (1.5k citations), Epidemiology (713 citations), Surgery (738 citations), Pulmonary and Respiratory Medicine (513 citations) and Emergency Medicine (108 citations). Charles Oprian has collaborated with scholars based in United States, Australia and Belgium. Frequent co-authors include William G. Henderson, Karl E. Hammermeister, Gulshan K. Sethi, Shahbudin H. Rahimtoola, Frederick L. Grover, Shukri F. Khuri, Jennifer Daley, Katherine S. Virgo, Frank E. Johnson and Walter E. Longo. Their work appears in journals such as Journal of the American College of Cardiology, Journal of Thoracic and Cardiovascular Surgery, Annals of Surgery, Biometrical Journal and New England Journal of Medicine.
Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.