Tor Inge Tønnessen

4.1k total citations · 1 hit paper
120 papers, 3.0k citations indexed

About

Tor Inge Tønnessen is a scholar working on Surgery, Cardiology and Cardiovascular Medicine and Epidemiology. According to data from OpenAlex, Tor Inge Tønnessen has authored 120 papers receiving a total of 3.0k indexed citations (citations by other indexed papers that have themselves been cited), including 43 papers in Surgery, 17 papers in Cardiology and Cardiovascular Medicine and 17 papers in Epidemiology. Recurrent topics in Tor Inge Tønnessen's work include Organ Transplantation Techniques and Outcomes (15 papers), Hemodynamic Monitoring and Therapy (14 papers) and Renal function and acid-base balance (11 papers). Tor Inge Tønnessen is often cited by papers focused on Organ Transplantation Techniques and Outcomes (15 papers), Hemodynamic Monitoring and Therapy (14 papers) and Renal function and acid-base balance (11 papers). Tor Inge Tønnessen collaborates with scholars based in Norway, United States and Finland. Tor Inge Tønnessen's co-authors include Sjur Olsnes, Kirsten Sandvig, Runkuan Yang, Bjørn Edwin, Gunnvald Kvarstein, Marit Helen Andersen, Erik Fosse, Airazat М. Kazaryan, Bo van Deurs and Ole W. Petersen and has published in prestigious journals such as Journal of Biological Chemistry, SHILAP Revista de lepidopterología and The Journal of Cell Biology.

In The Last Decade

Tor Inge Tønnessen

114 papers receiving 2.9k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Laparoscopic Versus Open Resection for Colorectal Liver Metastases

2017 435 citations Åsmund Avdem Fretland, Vegar Johansen Dagenborg et al. Annals of Surgery profile →

Peers

Countries citing papers authored by Tor Inge Tønnessen

Since Specialization

Citations

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

Fields of papers citing papers by Tor Inge Tønnessen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Tor Inge Tønnessen

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

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Haemodynamic Changes After Prophylactic Doses of Ephedrine, Phenylephrine, Norepinephrine Versus Placebo During Induction of General Anaesthesia: A Randomised Trial 2025 ·Acta Anaesthesiologica Scandinavica ·(unknown), (unknown), Ragnhild Sørum Falk, Tor Inge Tønnessen, Eldrid Langesæter	0
2	Local Postoperative Graft Inflammation in Pancreas Transplant Patients With Early Graft Thrombosis 2023 ·Transplantation Direct ·(unknown), (unknown), Rune Horneland, Judith Krey Ludviksen, Trond Jenssen, Pål‐Dag Line, Tor Inge Tønnessen, Tom Eirik Mollnes, Håkon Haugaa, Søren Erik Pischke	2
3	Assessment of Intestinal Ischemia–Reperfusion Injury Using Diffuse Reflectance VIS-NIR Spectroscopy and Histology 2022 ·Sensors ·(unknown), (unknown), Jon Tschudi, Marion O’Farrell, (unknown), Ørjan G. Martinsen, Tor Inge Tønnessen, (unknown)	5
4	Cerebral perfusion and metabolism with mean arterial pressure 90 vs. 60 mmHg in a porcine post cardiac arrest model with and without targeted temperature management 2021 ·Resuscitation ·Christiane Skåre, (unknown), (unknown), Morten Eriksen, (unknown), Kjetil Sunde, Tor Inge Tønnessen, Theresa M. Olasveengen	13
5	Early detection of anastomotic leakage after pancreatoduodenectomy with microdialysis catheters: an observational Study 2021 ·HPB ·Espen Lindholm, (unknown), Håkon Haugaa, Knut Jørgen Labori, Sheraz Yaqub, Bjørn Atle Bjørnbeth, Pål‐Dag Line, Guro Grindheim, (unknown), Søren Erik Pischke, Tor Inge Tønnessen	2
6	Ethyl pyruvate supplemented in drinking water ameliorates experimental nonalcoholic steatohepatitis 2021 ·Biomedicine & Pharmacotherapy ·Xiujing Sun, Shengtao Zhu, (unknown), (unknown), Tor Inge Tønnessen, Runkuan Yang	3
7	Clinical characterization of Helicobacter pylori infected patients 15 years after unsuccessful eradication 2020 ·PLoS ONE ·(unknown), Kay-Martin Johnsen, Sveinung Wergeland Sørbye, (unknown), Tor Inge Tønnessen, Eyvind J. Paulssen, K Melby, Rasmus Goll, Jon Florholmen	3
8	Intravenous Patient-controlled Analgesia Versus Thoracic Epidural Analgesia After Open Liver Surgery 2019 ·Annals of Surgery ·John Hausken, Åsmund Avdem Fretland, Bjørn Edwin, Marit Helen Andersen, Vegar Johansen Dagenborg, Gudrun Maria Waaler Bjørnelv, Ronny Kristiansen, Kjetil Røysland, Gunnvald Kvarstein, Tor Inge Tønnessen	31
9	Small intestinal ischemia and reperfusion—bioimpedance measurements 2018 ·Physiological Measurement ·(unknown), Christian Tronstad, Håvard Kalvøy, T. E. Ruud, (unknown), Ørjan G. Martinsen, Tor Inge Tønnessen	7
10	Development of a conductometric biocompatible sensor for detecting ischemia 2013 ·European Microelectronics and Packaging Conference ·(unknown), (unknown), Knut E. Aasmundtveit, Tor Inge Tønnessen	1
11	Activation of coagulation and platelets by candidate membranes of implantable devices in a whole blood model without soluble anticoagulant 2012 ·Journal of Biomedical Materials Research Part A ·(unknown), Bernt Christian Hellerud, Tor Inge Tønnessen, Erik Johannessen, Tom Eirik Mollnes	10
12	A NEW DYNAMIC PORCINE MODEL OF MENINGOCOCCAL SHOCK 2009 ·Shock ·Erik Waage Nielsen, Bernt Christian Hellerud, Ebbe Billmann Thorgersen, Albert Castellheim, Anne Pharo, Julie K. Lindstad, Tor Inge Tønnessen, P Brandtzæg, Tom Eirik Mollnes	22
13	Continuous cardiac output during off-pump coronary artery bypass surgery: pulse-contour analyses vs pulmonary artery thermodilution 2007 ·British Journal of Anaesthesia ·(unknown), (unknown), Milada Cvancarova, Per Kristian Hol, Runar Lundblad, Tor Inge Tønnessen	18
14	Microdialysis for Monitoring Inflammation: Efficient Recovery of Cytokines and Anaphylotoxins Provided Optimal Catheter Pore Size and Fluid Velocity Conditions 2006 ·Scandinavian Journal of Immunology ·(unknown), Anne Pharo, Tor Inge Tønnessen, Tom E. Mollnes	39
15	Ventricular Fibrillation during Off-Pump Coronary Artery Bypass Grafting: Transcranial Doppler and Clinical Findings 2001 ·Cerebrovascular Diseases ·Christian Lund, Runar Lundblad, Erik Fosse, Tor Inge Tønnessen, Kjetil Sundet, Rainer Brucher, David Russell	3
16	Prosessforbedring på norsk – et rammeverk 2000 ·Duo Research Archive (University of Oslo) ·(unknown), (unknown), Tor Inge Tønnessen	1
17	Increased cardiac expression of endothelin-1 mRNA in ischemic heart failure in rats 1997 ·Cardiovascular Research ·Tor Inge Tønnessen, Greg L. Christensen, (unknown), Even Holt, Harald Kjekshus, Otto A. Smiseth, Ole M. Sejersted, Håvard Attramadal	63
18	Importance of nitric oxide in hepatic arterial blood flow and total hepatic blood volume regulation in pigs 1997 ·Acta Physiologica Scandinavica ·Frank Grund, (unknown), (unknown), Michael R. Ujhelyi, Tor Inge Tønnessen, Knut Arvid Kirkebøen, D. L. Rutlen, Arnfinn Ilebekk	9
19	Control of pain and other symptoms in cancer patients 1990 ·Tor Inge Tønnessen	1
20	Regulation of Na⁺/H⁺ and Cl⁻/HCO₃⁻ antiports in vero cells 1990 ·Journal of Cellular Physiology ·Tor Inge Tønnessen, (unknown), (unknown), Heidi Kiil Blomhoff, Sjur Olsnes	9

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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