Dennis D. O’Keefe

2.7k total citations
41 papers, 947 citations indexed

About

Dennis D. O’Keefe is a scholar working on Pathology and Forensic Medicine, Emergency Medicine and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, Dennis D. O’Keefe has authored 41 papers receiving a total of 947 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Pathology and Forensic Medicine, 18 papers in Emergency Medicine and 14 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in Dennis D. O’Keefe's work include Cardiac Arrest and Resuscitation (18 papers), Cardiac Ischemia and Reperfusion (18 papers) and Cardiovascular Function and Risk Factors (9 papers). Dennis D. O’Keefe is often cited by papers focused on Cardiac Arrest and Resuscitation (18 papers), Cardiac Ischemia and Reperfusion (18 papers) and Cardiovascular Function and Risk Factors (9 papers). Dennis D. O’Keefe collaborates with scholars based in United States and United Kingdom. Dennis D. O’Keefe's co-authors include Willard M. Daggett, Gillian A. Geffin, James S. Titus, Gerald M. Pohost, William G. Hendren, H. William Strausś, Michael J. O’Neill, Julien I.E. Hoffman, J. R. Allard and Henry Gewirtz and has published in prestigious journals such as New England Journal of Medicine, Proceedings of the National Academy of Sciences and Circulation.

In The Last Decade

Dennis D. O’Keefe

39 papers receiving 868 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Dennis D. O’Keefe United States 17 413 307 259 212 184 41 947
Pankaj S. Mankad United Kingdom 16 279 0.7× 43 0.1× 213 0.8× 416 2.0× 129 0.7× 45 794
Fumikazu Nomura Japan 17 259 0.6× 47 0.2× 158 0.6× 300 1.4× 208 1.1× 61 853
Erkki Pehkonen Finland 16 294 0.7× 66 0.2× 375 1.4× 280 1.3× 228 1.2× 39 852
Jan Hultman Sweden 16 262 0.6× 36 0.1× 121 0.5× 387 1.8× 254 1.4× 55 870
Haruo Tomoda Japan 15 541 1.3× 197 0.6× 77 0.3× 211 1.0× 39 0.2× 52 772
Jean-Pierre Bertinchant France 13 661 1.6× 263 0.9× 79 0.3× 336 1.6× 165 0.9× 21 966
Rainald Seitelberger Austria 21 1.0k 2.4× 239 0.8× 173 0.7× 373 1.8× 70 0.4× 89 1.5k
B. Buis Netherlands 11 747 1.8× 198 0.6× 89 0.3× 438 2.1× 98 0.5× 19 1.1k
C. J. Preuße Germany 14 250 0.6× 21 0.1× 161 0.6× 149 0.7× 64 0.3× 39 530
Patricia Owen South Africa 12 329 0.8× 186 0.6× 332 1.3× 118 0.6× 157 0.9× 18 703

Countries citing papers authored by Dennis D. O’Keefe

Since Specialization
Citations

This map shows the geographic impact of Dennis D. O’Keefe'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 Dennis D. O’Keefe with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Dennis D. O’Keefe more than expected).

Fields of papers citing papers by Dennis D. O’Keefe

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Dennis D. O’Keefe. 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 Dennis D. O’Keefe. The network helps show where Dennis D. O’Keefe may publish in the future.

Co-authorship network of co-authors of Dennis D. O’Keefe

This figure shows the co-authorship network connecting the top 25 collaborators of Dennis D. O’Keefe. A scholar is included among the top collaborators of Dennis D. O’Keefe based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Dennis D. O’Keefe. Dennis D. O’Keefe is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Hendren, William G., et al.. (1994). Maximal oxygenation of dilute blood Cardioplegic solution. The Annals of Thoracic Surgery. 58(5). 1558–1559. 2 indexed citations
2.
Doherty, Neil E., et al.. (1992). Benefits of glucose and oxygen in multidose cold cardioplegia. Journal of Thoracic and Cardiovascular Surgery. 103(2). 219–229. 10 indexed citations
3.
Munfakh, Nabil A., John B. Steinberg, James S. Titus, et al.. (1991). Protection of the hypertrophied myocardium by crystalloid cardioplegia. Journal of Surgical Research. 51(6). 447–456. 6 indexed citations
4.
Geffin, Gillian A., et al.. (1991). Relation of myocardial protection to cardioplegic solution pH: Modulation by calcium and magnesium. The Annals of Thoracic Surgery. 52(4). 955–964. 6 indexed citations
5.
Geffin, Gillian A., et al.. (1989). Myocardial preservation related to magnesium content of hyperkalemic cardioplegic solutions at 8 °C. The Annals of Thoracic Surgery. 47(6). 907–913. 16 indexed citations
6.
Geffin, Gillian A., William G. Hendren, David F. Torchiana, et al.. (1989). The effects of calcium and magnesium in hyperkalemic cardioplegic solutions on myocardial preservation. Journal of Thoracic and Cardiovascular Surgery. 98(2). 239–250. 30 indexed citations
7.
Torchiana, David F., Gillian A. Geffin, James S. Titus, et al.. (1987). Optimal myocardial preservation with an acalcemic crystalloid cardioplegic solution. Journal of Thoracic and Cardiovascular Surgery. 93(6). 838–846. 20 indexed citations
8.
Hendren, William G., et al.. (1987). Oxygenation of cardioplegic solutions. Journal of Thoracic and Cardiovascular Surgery. 94(4). 614–625. 12 indexed citations
9.
Hendren, William G., et al.. (1987). Transfusion of Predonated Autologous Blood in Elective Cardiac Surgery. The Annals of Thoracic Surgery. 43(5). 508–512. 78 indexed citations
10.
Torchiana, David F., William G. Hendren, Gillian A. Geffin, et al.. (1987). Calcium-induced ventricular contraction during cardioplegic arrest. Journal of Thoracic and Cardiovascular Surgery. 94(4). 606–613. 17 indexed citations
11.
Daggett, Willard M., et al.. (1987). The Superiority of Cold Oxygenated Dilute Blood Cardioplegia. The Annals of Thoracic Surgery. 43(4). 397–402. 32 indexed citations
12.
Geffin, Gillian A., Dennis D. O’Keefe, John T. Fallon, et al.. (1983). Enhanced myocardial protection during ischemic arrest. Journal of Thoracic and Cardiovascular Surgery. 85(5). 769–780. 60 indexed citations
13.
O’Keefe, Dennis D., et al.. (1982). The relationship of the first heart sound to mitral valve closure in dogs.. Circulation. 66(1). 235–243. 13 indexed citations
14.
Drop, Lambertus J., Gillian A. Geffin, Dennis D. O’Keefe, et al.. (1981). Relation between ionized calcium concentration and ventricular pump performance in the dog under hemodynamically controlled conditions. The American Journal of Cardiology. 47(5). 1041–1051. 44 indexed citations
15.
Pohost, Gerald M., Robert D. Okada, Dennis D. O’Keefe, et al.. (1981). Thallium redistribution in dogs with severe coronary artery stenosis of fixed caliber.. Circulation Research. 48(3). 439–446. 62 indexed citations
16.
Guyton, Robert A., et al.. (1980). Regional myocardial protection: use of a new method to compare cold potassium cardioplegia with hypothermic coronary perfusion.. PubMed. 62(2 Pt 2). I26–33. 9 indexed citations
17.
Pennington, D. Glenn, Michael P. Vezeridis, Gillian A. Geffin, et al.. (1979). Quantitative effects of sodium nitroprusside on coronary hemodynamics and left ventricular function in dogs.. Circulation Research. 45(3). 351–359. 14 indexed citations
18.
Vasu, Megana, et al.. (1978). Myocardial oxygen consumption: effects of epinephrine, isoproterenol, dopamine, norepinephrine, and dobutamine. American Journal of Physiology-Heart and Circulatory Physiology. 235(2). H237–H241. 57 indexed citations
19.
Geffin, Gillian A., Megana Vasu, Dennis D. O’Keefe, et al.. (1978). Ventricular performance and myocardial water content during hemodilution in dogs. American Journal of Physiology-Heart and Circulatory Physiology. 235(6). H767–H775. 15 indexed citations
20.
Gewirtz, Henry, Dennis D. O’Keefe, Gerald M. Pohost, et al.. (1978). The effect of ischemia on thallium-201 clearance from the myocardium.. Circulation. 58(2). 215–219. 31 indexed citations

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.

Explore authors with similar magnitude of impact

Rankless by CCL
2026