Tor Fröysaker

1.3k total citations
93 papers, 1.0k citations indexed

About

Tor Fröysaker is a scholar working on Surgery, Cardiology and Cardiovascular Medicine and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Tor Fröysaker has authored 93 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 58 papers in Surgery, 51 papers in Cardiology and Cardiovascular Medicine and 20 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Tor Fröysaker's work include Cardiac Valve Diseases and Treatments (28 papers), Transplantation: Methods and Outcomes (23 papers) and Cardiac Structural Anomalies and Repair (14 papers). Tor Fröysaker is often cited by papers focused on Cardiac Valve Diseases and Treatments (28 papers), Transplantation: Methods and Outcomes (23 papers) and Cardiac Structural Anomalies and Repair (14 papers). Tor Fröysaker collaborates with scholars based in Norway, India and United Kingdom. Tor Fröysaker's co-authors include Svein Simonsen, Tryggve Lundar, H. Nornes, Odd Geiran, Karl-Fredrik Lindegaard, Jarle Holen, Rune Aaslid, S Nitter‐Hauge, J. Wiberg and Stig Ottesen and has published in prestigious journals such as Circulation, Radiology and European Heart Journal.

In The Last Decade

Tor Fröysaker

88 papers receiving 876 citations

Peers

Tor Fröysaker

CCM

SURGE

PRM

EPIDE

NEURO

Henry J. Sullivan United States

Elaine Chau China

Michael Havel Austria

Heinz Gössinger Austria

Fabrizio Sansone Italy

George Tolis United States

Michael Huebler Germany

Ayyaz Ali United Kingdom

Jefferson F. Hollingsworth United States

William Y. Moores United States

Henry J. Sullivan United States

Tor Fröysaker

752 ×1.4

CCM

806 ×1.9

SURGE

293 ×1.4

PRM

156 ×0.8

EPIDE

43 ×0.3

NEURO

Citations per year, relative to Tor Fröysaker Tor Fröysaker (= 1×) peers Henry J. Sullivan

Countries citing papers authored by Tor Fröysaker

Since Specialization

Citations

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

Fields of papers citing papers by Tor Fröysaker

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Tor Fröysaker. 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 Tor Fröysaker. The network helps show where Tor Fröysaker may publish in the future.

Co-authorship network of co-authors of Tor Fröysaker

This figure shows the co-authorship network connecting the top 25 collaborators of Tor Fröysaker. A scholar is included among the top collaborators of Tor Fröysaker 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 Tor Fröysaker. Tor Fröysaker is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Saatvedt, Kjell, Tor Fröysaker, Karleif Vatne, & K. Nordstrand. (1997). Retrograde Internal Mammary Artery as Coronary Bypass: A Prospective Study with Postoperative Angiographic Evaluation. Scandinavian Cardiovascular Journal. 31(2). 101–103. 4 indexed citations

Tølløfsrud, Stein, J L Svennevig, Harald Breivik, et al.. (1995). Fluid balance and pulmonary functions during and after coronary artery bypass surgery: Ringer's acetate compared with dextran, polygeline, or albumin. Acta Anaesthesiologica Scandinavica. 39(5). 671–677. 46 indexed citations

Saatvedt, Kjell, K. Nordstrand, & Tor Fröysaker. (1994). Pericardio-Peritoneal Window for Recurrent Postoperative Effusion. Scandinavian Journal of Thoracic and Cardiovascular Surgery. 28(1). 43–44. 1 indexed citations

Svennevig, Jan, et al.. (1993). Complement activation during extracorporeal circulation. Journal of Thoracic and Cardiovascular Surgery. 106(3). 466–472. 36 indexed citations

Foerster, A., Øystein Bjørtuft, Odd Geiran, et al.. (1993). Single lung transplantation Morphological surveillance by transbronchial biopsy. Apmis. 101(1-6). 455–466. 1 indexed citations

Saatvedt, Kjell, et al.. (1993). Surgical Intervention Following Failed Percutaneous Coronary Angioplasty. Scandinavian Journal of Thoracic and Cardiovascular Surgery. 27(1). 9–13. 2 indexed citations

Foerster, A., Michel Abdelnoor, Odd Geiran, et al.. (1992). Morbidity Risk Factors in Human Cardiac Transplantation: Histoincompatibility and Protracted Graft Ischemia Entail High Risk of Rejection and Infection. Scandinavian Journal of Thoracic and Cardiovascular Surgery. 26(3). 169–176. 12 indexed citations

Geiran, Odd, Harald Lindberg, Øystein Bjørtuft, et al.. (1992). Single Lung Transplantation: Surgical Experiences with the First Seven Patients. Scandinavian Journal of Thoracic and Cardiovascular Surgery. 26(3). 163–168. 5 indexed citations

Nordstrand, K., et al.. (1992). Patency of the Internal Mammary Artery Used as Sequential Graft. Scandinavian Journal of Thoracic and Cardiovascular Surgery. 26(1). 57–59. 3 indexed citations

10.

Bjørnerheim, Reidar, Tor Fröysaker, & V. Hansson. (1991). Effects of chronic amiodarone treatment on human myocardial adrenoceptor density and adenylate cyclase response. Cardiovascular Research. 25(6). 503–509. 8 indexed citations

11.

Gullestad, Lars, et al.. (1991). Intrapericardial left atrial aneurysm diagnosed by transoesophageal echocardiography and nuclear magnetic resonance imaging. European Heart Journal. 12(2). 277–279. 10 indexed citations

12.

Foerster, A., Michel Abdelnoor, Odd Geiran, et al.. (1991). Risk factors for total and cause-specific mortality in human cardiac transplantation Prolonged extracorporeal bypass time: a high risk factor for rejection and infection. European Journal of Cardio-Thoracic Surgery. 5(12). 641–647. 9 indexed citations

13.

Albrechtsen, D, Odd Geiran, A. Foerster, et al.. (1990). Cardiac transplantation from a blood group ABO-incompatible donor: a case report.. PubMed. 22(1). 143–143. 5 indexed citations

14.

Geiran, Odd, et al.. (1989). Experiences with closed chest, temporary atrio-arterial, ventricular bypass with a centrifugal pump after open heart surgery. European Journal of Cardio-Thoracic Surgery. 3(1). 44–51. 4 indexed citations

15.

Forslund, Terje, Frej Fyhrquist, Ilkka Tikkanen, et al.. (1988). Plasma Atrial Natriuretic Peptide in Cardiac Transplant Recipients. Acta Medica Scandinavica. 224(1). 3–7. 7 indexed citations

16.

Fröysaker, Tor, Odd Geiran, Harald Lindberg, et al.. (1987). Two‐and‐a‐half year experience with heart transplantation in Norway. Clinical Transplantation. 1(1). 49–51. 5 indexed citations

17.

Thaulow, Erik, Tor Fröysaker, Jon Dale, & Karleif Vatne. (1987). Failure of combined acetylsalicylic acid and dipyridamole to prevent occlusion of aortocoronary venous bypass graft. Scandinavian Journal of Thoracic and Cardiovascular Surgery. 21(3). 215–220. 6 indexed citations

18.

Stake, G, J Jervell, & Tor Fröysaker. (1978). Cardiac myxoma. Clinical and roentgenological aspects in 7 cases.. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 28(10). 139–43. 2 indexed citations

19.

Nitter‐Hauge, S, et al.. (1974). Aortic valve replacement: One-year results with Lillehei-Kaster and Bjork-Shiley disc prosthesis. American Heart Journal. 88(1). 23–28. 16 indexed citations

20.

Fröysaker, Tor. (1972). The Influence of Constructive Pericarditis on the Superior Vena Caval Flow Pattern. Scandinavian Journal of Thoracic and Cardiovascular Surgery. 6(3). 227–233. 9 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.

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