Theis Tønnessen

Oslo University Hospital — Norway

Medicine · Health Sciences

33h-index3.2kcitations83works22.32yr avg
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Research Topics

Cardiac Fibrosis and Remodeling(19), Cardiac Valve Diseases and Treatments(12), Cardiovascular Function and Risk Factors(12), Nitric Oxide and Endothelin Effects(9), Cardiac, Anesthesia and Surgical Outcomes(8)

Publications83 total

Combined complement and coagulation activation in ST-elevation myocardial infarction: associations with myocardial injury and dysfunction
Frontiers in Immunology·2025Open Access
2024 EACTS Guidelines on perioperative medication in adult cardiac surgery
European Journal of Cardio-Thoracic Surgery·2024· 58 cited
Regulation of cardiomyocyte t‐tubule structure by preload and afterload: Roles in cardiac compensation and decompensation
The Journal of Physiology·2024· 9 citedOpen Access
Macrophage polarization markers in subcutaneous, pericardial, and epicardial adipose tissue are altered in patients with coronary heart disease
Frontiers in Cardiovascular Medicine·2023· 8 citedOpen Access
ADAMTSL3 knock-out mice develop cardiac dysfunction and dilatation with increased TGFβ signalling after pressure overload
Communications Biology·2022· 17 citedOpen Access
Lumican Accumulates with Fibrillar Collagen in Fibrosis in Hypertrophic Cardiomyopathy
ESC Heart Failure·2022· 30 citedOpen Access
Complement activation in association with clinical outcomes in ST-elevation myocardial infarction
American Heart Journal Plus Cardiology Research and Practice·2022· 3 citedOpen Access
Calcineurin-NFAT dynamics correspond to cardiac remodeling during aortic banding and debanding, mimicking aortic valve replacement
Frontiers in Molecular Medicine·2022· 1 citedOpen Access
The NLRP3 inflammasome activation in subcutaneous, epicardial and pericardial adipose tissue in patients with coronary heart disease undergoing coronary by-pass surgery
Atherosclerosis Plus·2022· 5 citedOpen Access
Life Expectancy After Surgical Aortic Valve Replacement
Journal of the American College of Cardiology·2021· 63 citedOpen Access
The extracellular matrix glycoprotein ADAMTSL2 is increased in heart failure and inhibits TGFβ signalling in cardiac fibroblasts
Scientific Reports·2021· 43 citedOpen Access
Etiology-Dependent Impairment of Diastolic Cardiomyocyte Calcium Homeostasis in Heart Failure With Preserved Ejection Fraction
Journal of the American College of Cardiology·2021· 115 citedOpen Access
Complement Activation in Association with Markers of Neutrophil Extracellular Traps and Acute Myocardial Infarction in Stable Coronary Artery Disease
Mediators of Inflammation·2020· 14 citedOpen Access
T-tubule disruption is a prominent feature of HFrEF but not HFpEF
Journal of Molecular and Cellular Cardiology·2020
Specialist training for cardiothoracic surgery in the Nordic countries
Journal of Thoracic and Cardiovascular Surgery·2019· 10 citedOpen Access
The extracellular matrix proteoglycan lumican improves survival and counteracts cardiac dilatation and failure in mice subjected to pressure overload
Scientific Reports·2019· 63 citedOpen Access
Trifecta has lower gradient and less prosthesis–patient mismatch than Mosaic Ultra in the aortic position: A prospective randomized study
Journal of Thoracic and Cardiovascular Surgery·2018· 16 citedOpen Access
The extracellular matrix proteoglycan fibromodulin is upregulated in clinical and experimental heart failure and affects cardiac remodeling
PLoS ONE·2018· 76 citedOpen Access
T-Tubule Loss is a Prominent Feature of HFrEF but not HFpEF
Biophysical Journal·2018· 1 citedOpen Access
Thyroid and Glucocorticoid Hormones Promote Functional T-Tubule Development in Human-Induced Pluripotent Stem Cell–Derived Cardiomyocytes
Circulation Research·2017· 367 citedOpen Access
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Frequent Co-authors

Geir Christensen(26), Ivar Sjaastad(16), Ida G. Lunde(13), William E. Louch(8), Kristin V. T. Engebretsen(8), Biljana Skrbic(8), Johannes L. Bjørnstad(7), Christen P. Dahl(6), Cathrine R. Carlson(6), Henriette S. Marstein(6), Jan Magnus Aronsen(5), Per Reidar Woldbæk(5), Mari E. Strand(5), Torstein Lyberg(4), Almira Hasic(4), Sheryl Palmero(4), Ståle Nygård(4), Jørn Bodvar Sande(3), Per Lunde(3), Lars Gullestad(3)