Ellisiv Bøgeberg Mathiesen
Job description
Professor in neurology, Dept. of Clinical Medicine, UiT. Leader of the Brain and Circulation Research Group.
Senior consultant at the Dept. of Neurology, University Hospital of North Norway, Tromsø
Christina Magnussen,
Jesus Alegre-Diaz,
Lubna A. Al-Nasser,
Philippe Amouyel,
Larissa Aviles-Santa,
Stephan J. L. Bakker
et al.:
Global Effect of Cardiovascular Risk Factors on Lifetime Estimates
New England Journal of Medicine 2025 DOI
Kevin C Elangwe,
Ellisiv B. Mathiesen,
Torunn Varmdal,
Bent Indredavik,
Agnethe Eltoft
:
Trends in reperfusion treatments, functional outcomes and mortality for first-ever ischaemic stroke in Norway from 2014 to 2021: The Norwegian Stroke Registry
European Stroke Journal 2025 DOI
Luca Bernecker,
Ellisiv B. Mathiesen,
Tor Ingebrigtsen,
Jørgen Gjernes Isaksen,
Liv-Hege Johnsen,
Torgil Riise Vangberg
:
Patch-Wise Deep Learning Method for Intracranial Stenosis and Aneurysm Detection-the Tromsø Study
Neuroinformatics 2025 DOI
Ekaterina Sharashova,
Eva Gerdts,
Jocasta Ball,
Renate B. Schnabel,
Michael Stylidis,
Sweta Tiwari
et al.:
Long-term pulse pressure trajectories and risk of incident atrial fibrillation: the Tromsø Study
European Heart Journal 2025 DOI
Sweta Tiwari,
Ola Løvsletten,
Bjarne Koster Jacobsen,
Tom Wilsgaard,
Ellisiv Bøgeberg Mathiesen,
Henrik Schirmer
et al.:
Occasional smoking is a risk factor for myocardial infarction in the population-based Tromsø Study, 2001–21
European Journal of Preventive Cardiology (EJPC) 2025 DOI
Erin Mathiesen Hald,
Maja-Lisa Løchen,
Ellisiv B. Mathiesen,
Kristian Hveem,
Sigrid Kufaas Brækkan,
John Bjarne Hansen
:
Joint effects of atrial fibrillation and prothrombotic genotypes on the risk of ischemic stroke
Journal of Thrombosis and Haemostasis 2025 DOI
Ingvild Mathiesen Rosenlund,
Tor Ingebrigtsen,
Liv-Hege Johnsen,
Unni Ringberg,
Ellisiv B. Mathiesen,
Jørgen Gjernes Isaksen
:
Are diagnoses of unruptured intracranial aneurysms associated with quality of life, psychological distress, health anxiety, or use of healthcare services in untreated individuals? A longitudinal, nested case-control study
Bin Zhou,
Mariachiara Di Cesare,
Carlos A Aguilar-Salinas,
Nor Ani Ahmad,
Pascal Bovet,
Zhengming Chen
et al.:
General and abdominal adiposity and hypertension in eight world regions: a pooled analysis of 837 population-based studies with 7·5 million participants
Bin Zhou,
Archie W. Rayner,
Edvard W Gregg,
Kate E. Sheffer,
Rodrigo M Carrillo-Larco,
James E Bennett
et al.:
Worldwide trends in diabetes prevalence and treatment from 1990 to 2022: a pooled analysis of 1108 population-representative studies with 141 million participants.
Mary-Helen Søyland,
Arnstein Tveiten,
Agnethe Eltoft,
Halvor Øygarden,
Torunn Varmdal,
Bent Indredavik
et al.:
Thrombolytic Treatment in Wake-Up Stroke: A Propensity Score-Matched Analysis of Treatment Effectiveness in the Norwegian Stroke Registry
Kristin Busund,
Linn Hofsøy Steffensen,
Amalie Hauan,
Ellisiv B. Mathiesen,
Agnethe Eltoft
:
Geografiske forskjeller i trombolysebehandling ved akutt hjerneinfarkt
Chi Quynh Vo,
Tom Wilsgaard,
Per-Jostein Samuelsen,
Ellisiv B. Mathiesen,
Hilde Leikny Sommerseth,
Anne Elise Eggen
et al.:
Longitudinal cholesterol trends across socioeconomic groups in Norway: the influence of lipid-lowering drugs in the population-based Tromsø Study 1994-2016
Sergej Ostojic,
Nowell H. Phelps,
Rosie K. Singleton,
Bin Zhou,
Rachel Heap,
Anu Mishra
et al.:
Worldwide trends in the underweight and obesity from 1990 to 2022: a pooled analysis of 3,633 population-representative studies with 222 million school-aged children, adolescents, and adults
Birgitte Gladsø Tøndel,
Joakim Knutsen Sejrup,
Vania Maris Morelli,
Maja-Lisa Løchen,
Inger Njølstad,
Ellisiv B. Mathiesen
et al.:
Joint effect of ischemic stroke and obesity on the risk of venous thromboembolism: the Tromsø Study
Tonje Anita Melum,
Ólöf A. Steingrímsdóttir,
Henrik B. Jacobsen,
Bente Johnsen,
Audun Stubhaug,
Henrik Schirmer
et al.:
Associations between cognitive test scores and pain tolerance: The Tromsø study
Edvard Hamnvik Sagelv,
Andrea Casolo,
Anne Elise Eggen,
Kim Arne Heitmann,
Kristoffer Robin Johansen,
Maja-Lisa Løchen
et al.:
Females Display Lower Risk of Myocardial Infarction From Higher Estimated Cardiorespiratory Fitness Than Males: The Tromsø Study 1994-2014
Liv-Hege Johnsen,
Marit Herder,
Torgil Riise Vangberg,
Jørgen Gjernes Isaksen,
Ellisiv B. Mathiesen
:
Prevalence of intracranial artery stenosis in a general population using 3D-time of flight magnetic resonance angiography
Anu Mishra,
Bin Zhou,
Andrea Rodriguez-Martinez,
Honor Bixby,
Rosie K. Singleton,
Rodrigo M. Carrillo-Larco
et al.:
Diminishing benefits of urban living for children and adolescents’ growth and development
Lars Bakke Hindenes,
Tor Ingebrigtsen,
Jørgen Gjernes Isaksen,
Asta Håberg,
Liv-Hege Johnsen,
Marit Herder
et al.:
Anatomical variations in the circle of Willis are associated with increased odds of intracranial aneurysms: The Tromsø study
Tonje Anita Melum,
Anders Årnes,
Hein Stigum,
Audun Stubhaug,
Ólöf Anna Steingrímsdóttir,
Ellisiv B. Mathiesen
et al.:
Pain tolerance after stroke: The Tromsø study
Christina Magnussen,
Francisco M. Ojeda,
Darryl P. Leong,
Jesus Alegre-Diaz,
Philippe Amouyel,
Larissa Aviles-Santa
et al.:
Global Effect of Modifiable Risk Factors on Cardiovascular Disease and Mortality.
Betül Toprak,
Stephanie Brandt,
Jan Brederecke,
Francesco Gianfagna,
Julie K.K. Vishram-Nielsen,
Francisco M. Ojeda
et al.:
Exploring the incremental utility of circulating biomarkers for robust risk prediction of incident atrial fibrillation in European cohorts using regressions and modern machine learning methods
Europace 2023 DOI
Tonje Anita Melum,
Torgil Riise Vangberg,
Liv-Hege Johnsen,
Olöf Anna Steingrimsdottir,
Audun Stubhaug,
Ellisiv B. Mathiesen
et al.:
Gray matter volume and pain tolerance in a general population: the Tromsø study
Pain 2023 DOI
Melinda Berg Roaldsen,
Jens Wilhelm Horn,
Harald Hildrum,
Hanne Ellekjær,
Gitta Rohweder,
Fredrik Ildstad
et al.:
Safety and efficacy of tenecteplase in patients with wake-up stroke assessed by non-contrast CT (TWIST): a multicentre, open-label, randomised controlled trial
Lancet Neurology 2023 DOI
Joakim Knutsen Sejrup,
Birgitte Gladsø Tøndel,
Vania Maris Morelli,
Maja-Lisa Løchen,
Inger Njølstad,
Ellisiv B. Mathiesen
et al.:
Joint effect of myocardial infarction and obesity on the risk of venous thromboembolism: The Tromsø Study
Engelbert A. Nonterah,
Nigel J. Crowther,
Kerstin Klipstein-Grobusch,
Abraham R. Oduro,
Maryam Kavousi,
Godfred Agongo
et al.:
Racial and Ethnic Differences in the Association Between Classical Cardiovascular Risk Factors and Common Carotid Intima-Media Thickness: An Individual Participant Data Meta-Analysis
Pablo Anke,
Lars Kjelsberg Pedersen,
Ellisiv Bøgeberg Mathiesen,
Tor Ingebrigtsen
:
Decompressive hemicraniectomy for space-occupying brain infarction: Nationwide population-based registry study
Runa Marie Andreassen,
Jens Kronborg,
Henrik Schirmer,
Ellisiv B. Mathiesen,
Toralf Melsom,
Bjørn Odvar Eriksen
et al.:
Urinary orosomucoid is associated with diastolic dysfunction and carotid arteriopathy in the general population. Cross-sectional data from the Tromsø study
Liv-Hege Johnsen,
Marit Herder,
Torgil Riise Vangberg,
Roar Kloster,
Tor Ingebrigtsen,
Jørgen Gjernes Isaksen
et al.:
Prevalence of unruptured intracranial aneurysms: impact of different definitions-the Tromsø Study
Agnethe Eltoft,
Tom Wilsgaard,
Melinda Berg Roaldsen,
Mary-Helen Søyland,
Erik Lundström,
Jesper Petersson
et al.:
Statistical analysis plan for the randomized controlled trial Tenecteplase in Wake-up Ischaemic Stroke Trial (TWIST)
Kristina Fladseth,
Tom Wilsgaard,
Haakon Lindekleiv,
Andreas Kristensen,
Jan Torbjørn Mannsverk,
Maja-Lisa Løchen
et al.:
Outcomes after coronary angiography for unstable angina compared to stable angina, myocardial infarction and an asymptomatic general population
Melinda Berg Roaldsen,
Agnethe Eltoft,
Tom Wilsgaard,
Hanne Christensen,
Stefan T. Engelter,
Bent Indredavik
et al.:
Safety and efficacy of tenecteplase in patients with wake-up stroke assessed by non-contrast CT (TWIST): a multicentre, open-label, randomised controlled trial.
Therese von Hanno,
Live Lund Hareide,
Lars Småbrekke,
Bente Morseth,
Monica Sneve,
Maja Gran Erke
et al.:
Macular Layer Thickness and Effect of BMI, Body Fat, and Traditional Cardiovascular Risk Factors: The Tromsø Study
Stephan Camen,
Dora Csengeri,
Bastiaan Geelhoed,
Teemu Niiranen,
Francesco Gianfagna,
Julie K. Vishram-Nielsen
et al.:
Risk Factors, Subsequent Disease Onset, and Prognostic Impact of Myocardial Infarction and Atrial Fibrillation
Ekaterina Sharashova,
Eva Gerdts,
Jocasta Ball,
Hilde Espnes,
Bjarne K. Jacobsen,
Simon Kildal
et al.:
Sex-specific time trends in incident atrial fibrillation and the contribution of risk factors: the Tromsø Study 1994-2016
Mary-Helen Søyland,
Arnstein Tveiten,
Agnethe Eltoft,
Halvor Øygarden,
Torunn Varmdal,
Bent Indredavik
et al.:
Wake-up stroke and unknown-onset stroke; occurrence and characteristics from the nationwide Norwegian Stroke Register
Maria Laura Caminia Iurilli,
Bin Zhou,
James E. Bennett,
Rodrigo M. Carrillo-Larco,
Marisa K. Sophiea,
Andrea Rodriguez-Martinez
et al.:
Heterogeneous contributions of change in population distribution of body mass index to change in obesity and underweight
Kristina Fladseth,
Haakon Lindekleiv,
Christopher Sivert Nielsen,
Andrea Øhrn,
Andreas Kristensen,
Jan Torbjørn Mannsverk
et al.:
Low pain tolerance is associated with coronary angiography, coronary artery disease, and mortality: The Tromsø study
Hilde Espnes,
Jocasta Ball,
Maja-Lisa Løchen,
Tom Wilsgaard,
Inger Njølstad,
Ellisiv B. Mathiesen
et al.:
Sex-specific associations between blood pressure and risk of atrial fibrillation subtypes in the tromsø study
Torunn Varmdal,
Maja-Lisa Løchen,
Tom Wilsgaard,
Inger Njølstad,
Audhild Nyrnes,
Sameline Grimsgaard
et al.:
Data from national health registers as endpoints for the Tromsø Study: Correctness and completeness of stroke diagnoses
Laila Arnesdatter Hopstock,
Bente Morseth,
Sarah Cook,
Anne Elise Eggen,
Sameline Grimsgaard,
Marie Wasmuth Lundblad
et al.:
Treatment target achievement after myocardial infarction and ischemic stroke: cardiovascular risk factors, medication use and lifestyle – The Tromsø Study 2015-2016. Secondary prevention in myocardial infarction and stroke
Torunn Varmdal,
Ellisiv B. Mathiesen,
Tom Wilsgaard,
Inger Njølstad,
Audhild Nyrnes,
Sameline Grimsgaard
et al.:
Validating Acute Myocardial Infarction Diagnoses in National Health Registers for Use as Endpoint in Research: The Tromsø Study
Stephan Achenbach,
Krasimira Aleksandrova,
Pilar Amiano,
Philippe Amouyel,
Jonas Andersson,
Stephan J.L. Bakker
et al.:
SCORE2 risk prediction algorithms: new models to estimate 10-year risk of cardiovascular disease in Europe
Benedict Schrage,
Nicole Rübsamen,
Francisco Ojeda,
Barbara Thorand,
Annette Peters,
Wolfgang Koenig
et al.:
Association of iron deficiency with incident cardiovascular diseases and mortality in the general population
Melinda Berg Roaldsen,
Haakon Lindekleiv,
Agnethe Eltoft,
Mirza Jusufovic,
Mary-Helen Søyland,
Jesper Petersson
et al.:
Tenecteplase in wake-up ischemic stroke trial: Protocol for a randomized-controlled trial
Ilari Rautalin,
Jaakko Kaprio,
Tor Ingebrigtsen,
Pekka Jousilahti,
Maja-Lisa Løchen,
Pål Richard Romundstad
et al.:
Obesity Does Not Protect From Subarachnoid Hemorrhage: Pooled Analyses of 3 Large Prospective Nordic Cohorts
Melinda Berg Roaldsen,
Haakon Lindekleiv,
Ellisiv B. Mathiesen
:
Intravenous thrombolytic treatment and endovascular thrombectomy for ischaemic wake-up stroke
Chi Quynh Vo,
Tom Wilsgaard,
Per-Jostein Samuelsen,
Ellisiv Bøgeberg Mathiesen,
Hilde Leikny Sommerseth,
Anne Elise Eggen
et al.:
Longitudinal cholesterol trends across educational groups: the influence of lipid-lowering drugs in the population-based Tromsø Study 1994-2016
2023
M. Reza Azarpazhooh,
Ellisiv B. Mathiesen,
Tatjana Rundek,
Michel Romanens,
Ansgar Adams,
Luis Armando
et al.:
Reliability, Reproducibility, and Advantages of Measuring Carotid Total Plaque Area
Journal of the American Society of Echocardiography 2022 DOI
Hilde Espnes,
Jocasta Ball,
Maja-Lisa Løchen,
Tom Wilsgaard,
Inger Njølstad,
Ellisiv B. Mathiesen
et al.:
Risk factors and prognosis for heart failure in atrial fibrillation subtypes in women and men
2022
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Research interests
Stroke - epidemiology: incidence, risk factors and time trends
Treatment of acute stroke and wake-up stroke
Atherosclerosis and stenosis of extra- and intracranial arteries - epidemiology and relation to clinical disease
Teaching
Leader of the Neurology teaching section of UiT's medical school
Leader of the neurology, ophthalmology and otology module in the 4th year of the medical school curriculum (MED-2521-1, module 4.6)
Member of the examination board for MED-2421-1
