Ulrike Waje-Andreassen
Position
Professor
Affiliation
Publications
Academic article
- Jibril, Khuluud Abdi; Kuiper, Karel Kier-Jan; Nawaz, Beenish Adeel Chaudry et al. (2025). Burden of Coronary Artery Disease as a Predictor of New Vascular Events and Mortality in Patients With Ischemic Stroke: Insights From the Norwegian Stroke in the Young Study. (external link)
- Farah, Mohamad Jamal; Nawaz, Beenish Adeel Chaudry; Fromm, Annette et al. (2025). Post-stroke fatigue and its consequences in young adults: The Norwegian Stroke in the Young Study II. (external link)
- Eilertsen, Rune Krogh; Midtbø, Helga Bergljot; Nawaz, Beenish Adeel Chaudry et al. (2025). Associations of short-term blood pressure variability with presence and progression of organ damage over five years in ischaemic stroke survivors: the Norwegian Stroke in the Young Study. (external link)
- Kutal, Shakar; Tulkki, Lauri Juhani; Sarkanen, Tomi et al. (2025). Association Between Self-Perceived Stress and Cryptogenic Ischemic Stroke in Young Adults: A Case-Control Study. (external link)
- Eilertsen, Rune Krogh; Midtbø, Helga Bergljot; Sindre, Rasmus Bach et al. (2024). Factors associated with progression of arterial stiffness in ischemic stroke survivors: the Norwegian Stroke in the Young Study. (external link)
- Sindre, Rasmus Bach; Gerdts, Eva; Putaala, Jukka et al. (2024). Association of Left Atrial Stiffness With Risk of Cryptogenic Ischemic Stroke in Young Adults. (external link)
- Putaala, Jukka; Sarnowski, Bettina von; Schminke, Ulf et al. (2024). Association of Hypertension With Early-Onset Cryptogenic Ischemic Stroke by the Presence of Patent Foramen Ovale: A Case-Control Study. (external link)
- Martinez-Majander, Nicolas; Kutal, Shakar; Ylikotila, Pauli et al. (2024). Association between heavy alcohol consumption and cryptogenic ischaemic stroke in young adults: A case-control study. (external link)
- Luijten, Sven P. R.; Ende, Nadinda A. M. van der; Cornelissen, Sandra A. P. et al. (2023). Comparison of diffusion weighted imaging b0 with T2*-weighted gradient echo or susceptibility weighted imaging for intracranial hemorrhage detection after reperfusion therapy for ischemic stroke. (external link)
- Boland, Solveig; Nawaz, Beenish Adeel Chaudry; Øygarden, Halvor et al. (2023). Verified Parental Cardiovascular Events for Young and Middle-Aged Ischaemic Stroke Patients and Controls. (external link)
- Ende, Nadinda A.M. Van Der; Luijten, Sven P.R.; Kluijtmans, Leo et al. (2023). Interobserver Agreement on Intracranial Hemorrhage on Magnetic Resonance Imaging in Patients With Ischemic Stroke. (external link)
- Farah, Mohamad Jamal; Næss, Halvor; Waje-Andreassen, Ulrike et al. (2023). Comparison Between First-Ever Ischemic Stroke in Young Adults in 1988–1997 and 2008–2017. (external link)
- Jaakonmäki, Nina; Zedde, Marialuisa; Sarkanen, Tomi et al. (2022). Obesity and the Risk of Cryptogenic Ischemic Stroke in Young Adults. (external link)
- Jacob, Mina A.; Ekker, Merel S.; Allach, Youssra et al. (2022). Global Differences in Risk Factors, Etiology, and Outcome of Ischemic Stroke in Young Adults-A Worldwide Meta-analysis. (external link)
- Nawaz, Beenish Adeel Chaudhry; Fromm, Annette; Øygarden, Halvor et al. (2022). Vascular risk factors and staging of atherosclerosis in patients and controls: The Norwegian Stroke in the Young Study. (external link)
- Novotny, Vojtech; Aarli, Sander Johan; Khanevski, Andrej et al. (2021). Clinical manifestation of acute cerebral infarcts in multiple arterial territories. (external link)
- Ihle-Hansen, Håkon; Sandset, Else Charlotte; Ihle-Hansen, Hege et al. (2021). Sex differences in the Norwegian Tenecteplase Trial (NOR-TEST). (external link)
- Nawaz, Beenish; Fromm, Annette; Øygarden, Halvor et al. (2021). Prevalence of atherosclerosis and association with 5-year outcome: The Norwegian Stroke in the Young Study. (external link)
- Aarli, Sander Johan; Thomassen, Lars; Waje-Andreassen, Ulrike et al. (2021). The Course of Carotid Plaque Vulnerability Assessed by Advanced Neurosonology. (external link)
- Saeed, Sahrai; Waje-Andreassen, Ulrike; Næss, Halvor et al. (2021). The impact of age and 24-h blood pressure on arterial health in acute ischemic stroke patients: The Norwegian stroke in the young study. (external link)
- Martinez-Majander, Nicolas; Artto, Ville; Ylikotila, Pauli et al. (2020). Association between Migraine and Cryptogenic Ischemic Stroke in Young Adults. (external link)
- Einarsen, Eigir; Gerdts, Eva; Waje-Andreassen, Ulrike et al. (2020). Association of increased arterial stiffness with diastolic dysfunction in ischemic stroke patients the Norwegian Stroke in the Young Study. (external link)
- Thommessen, Bente; Næss, Halvor; Logallo, Nicola et al. (2020). Tenecteplase versus alteplase after acute ischemic stroke at high age. (external link)
- Saeed, Sahrai; Gerdts, Eva; Waje-Andreassen, Ulrike et al. (2019). Left ventricular myocardial dysfunction in young and middle-aged ischemic stroke patients: the Norwegian stroke in the young study. (external link)
- Nawaz, Beenish; Eide, Geir Egil; Fromm, Annette et al. (2019). Young ischaemic stroke incidence and demographic characteristics - The Norwegian stroke in the young study - A three-generation research program. (external link)
- Bjerkreim, Anna Therese; Næss, Halvor; Khanevski, Andrej et al. (2019). One-year versus five-year hospital readmission after ischemic stroke and TIA. (external link)
- Saeed, Sahrai; Gerdts, Eva; Waje-Andreassen, Ulrike et al. (2019). Searching for explanations for cryptogenic stroke in the young: Revealing the Etiology, Triggers, and outcome (SECRETO): Echocardiography performance protocol. (external link)
- Bjerkreim, Anna Therese; Khanevski, Andrej; Thomassen, Lars et al. (2019). Five-year readmission and mortality differ by ischemic stroke subtype. (external link)
- Næss, Halvor; Logallo, Nicola; Waje-Andreassen, Ulrike et al. (2019). U-shaped relationship between hemoglobin level and severity of ischemic stroke. (external link)
- Ekker, Merel; Jacob, Mina; Dongen, Myrna M.E. van et al. (2019). Global Outcome Assessment Life-long after stroke in young adults initiative - The GOAL initiative: Study protocol and rationale of a multicentre retrospective individual patient data meta-analysis. (external link)
- Novotny, Vojtech; Khanevski, Andrej; Bjerkreim, Anna Therese et al. (2019). Short-term outcome and in-hospital complications after acute cerebral infarcts in multiple arterial territories. (external link)
- Rønning, Ole M.; Logallo, Nicola; Thommessen, Bente et al. (2019). Tenecteplase versus alteplase between 3 and 4.5 hours in low national institutes of health stroke scale. (external link)
- Königstein, Karsten; Infanger, Denis; Bertelsen, Randi Jacobsen et al. (2019). Is atopic sensitization associated with indicators of early vascular ageing in adolescents?. (external link)
- Kvistad, Christopher Elnan; Novotny, Vojtech; Kurz, Martin et al. (2019). Safety and Outcomes of Tenecteplase in Moderate and Severe Ischemic Stroke. (external link)
- Kvistad, Christopher Elnan; Novotny, Vojtech; Næss, Halvor et al. (2018). Safety and predictors of stroke mimics in The Norwegian Tenecteplase Stroke Trial (NOR-TEST). (external link)
- Næss, Halvor; Thomassen, Lars; Waje-Andreassen, Ulrike et al. (2018). High risk of early neurological worsening of lacunar infarction. (external link)
- Selvik, Henriette Aurora; Bjerkreim, Anna Therese; Thomassen, Lars et al. (2018). When to screen ischaemic stroke patients for cancer. (external link)
- Oftedal, Åshild; Gerdts, Eva; Waje-Andreassen, Ulrike et al. (2018). Prevalence and covariates of uncontrolled hypertension in ischemic stroke survivors: the Norwegian stroke in the young study. (external link)
- Bjerkreim, Anna Therese; Khanevski, Andrej; Selvik, Henriette Aurora et al. (2018). The impact of ischaemic stroke subtype on 30-day hospital readmissions. (external link)
- Aarli, Sander Johan; Kråkenes, Jostein; Omdal, Tom Roar et al. (2018). Patent foramen ovale in an elderly male with multiple embolic infarcts. (external link)
- Linde, Anja G; Gerdts, Eva; Waje-Andreassen, Ulrike et al. (2018). Covariables and types of abnormal left ventricular geometry in nonelderly ischemic stroke survivors: The Norwegian Stroke in theYoung Study. (external link)
- Waje-Andreassen, Ulrike; Nabavi, Darius G.; Engelter, Stefan T. et al. (2018). European Stroke Organisation certification of stroke units and stroke centres. (external link)
- Novotny, Vojtech; Thomassen, Lars; Waje-Andreassen, Ulrike et al. (2017). Acute cerebral infarcts in multiple arterial territories associated with cardioembolism. (external link)
- Putaala, Jukka; Martinez-Majander, Nicolas; Saeed, Sahrai et al. (2017). Searching for Explanations for Cryptogenic Stroke in the Young: Revealing the Triggers, Causes, and Outcome (SECRETO): Rationale and design. (external link)
- Khanevski, Andrej; Næss, Halvor; Thomassen, Lars et al. (2017). Elevated body temperature in ischemic stroke associated with neurological improvement. (external link)
- Logallo, Nicola; Novotny, Vojtech; Assmus, Jörg et al. (2017). Tenecteplase versus alteplase for management of acute ischaemic stroke (NOR-TEST): a phase 3, randomised, open-label, blinded endpoint trial. (external link)
- Bustamante, Alejandro; Vilar-Bergua, Andrea; Guettier, Sophie et al. (2017). C-reactive protein in the detection of post-stroke infections: systematic review and individual participant data analysis. (external link)
- Kvistad, Christopher Elnan; Nacu, Aliona; Novotny, Vojtech et al. (2017). Contrast‐enhanced sonothrombolysis in acute ischemic stroke patients without intracranial large‐vessel occlusion. (external link)
- Novotny, Vojtech; Nacu, Aliona; Kvistad, Christopher Elnan et al. (2017). Clinical importance of temporal bone features for the efficacy of contrast-enhanced sonothrombolysis: a retrospective analysis of the NOR-SASS Trial. (external link)
- Næss, Halvor; Waje-Andreassen, Ulrike; Thomassen, Lars et al. (2017). A score for paroxysmal atrial fibrillation in acute ischemic stroke. (external link)
- Saeed, Sahrai; Waje-Andreassen, Ulrike; Lønnebakken, Mai Tone et al. (2016). Covariates of non-dipping and elevated night-time blood pressure in ischemic stroke patients: the Norwegian Stroke in the Young Study. (external link)
- Kvistad, Christopher Elnan; Øygarden, Halvor; Logallo, Nicola et al. (2016). A stress-related explanation to the increased blood pressure and its course following ischemic stroke. (external link)
- Øygarden, Halvor; Fromm, Annette; Sand, Kristin Modalsli et al. (2016). Can the cardiovascular family history reported by our patients be trusted? The Norwegian Stroke in the Young Study. (external link)
- Næss, Halvor; Kurz, Friedrich Martin W.; Thomassen, Lars et al. (2016). Serial NIHSS scores in patients with acute cerebral infarction. (external link)
- Mørch-Rasmussen, Anja Cathrin; Nacu, Aliona; Waje-Andreassen, Ulrike et al. (2016). Recurrent ischemic stroke is associated with the burden of risk factors. (external link)
- Fromm, Annette; Haaland, Øystein Ariansen; Næss, Halvor et al. (2016). Atherosclerosis in trial of org 10172 in acute stroke treatment subtypes among young and middle-aged stroke patients: The Norwegian stroke in the young study. (external link)
- Novotny, Vojtech; Khanevski, Andrej; Thomassen, Lars et al. (2016). Time patterns in multiple acute cerebral infarcts.. (external link)
- Bjerkreim, Anna Therese; Thomassen, Lars; Waje-Andreassen, Ulrike et al. (2016). Hospital Readmission after Intracerebral Hemorrhage. (external link)
- Nacu, Aliona; Kvistad, Christopher Elnan; Næss, Halvor et al. (2016). NOR-SASS (Norwegian Sonothrombolysis in Acute Stroke Study): Randomized controlled contrast-enhanced sonothrombolysis in an unselected acute ischemic stroke population. (external link)
- Bringeland, Gerd Haga; Nacu, Aliona; Waje-Andreassen, Ulrike et al. (2016). U-curve relation between cholesterol and prior ischemic stroke. (external link)
- Saeed, Sahrai; Waje-Andreassen, Ulrike; Fromm, Annette et al. (2016). Prevalence and covariates of masked hypertension in ischemic stroke survivors: the Norwegian Stroke in the Young Study.. (external link)
- Nacu, Aliona; Fromm, Annette; Sand, Kristin Modalsli et al. (2016). Age dependency of ischaemic stroke subtypes and vascular risk factors in western Norway: The Bergen Norwegian Stroke Cooperation Study. (external link)
- Nacu, Aliona; Bringeland, Gerd Haga; Khanevski, Andrej et al. (2016). Early neurological worsening in acute ischaemic stroke patients. (external link)
- Waje-Andreassen, Ulrike; Næss, Halvor; Thomassen, Lars et al. (2015). Biomarkers related to carotid intima-media thickness and plaques in long-term survivors of ischemic stroke. (external link)
- Øygarden, Halvor; Fromm, Annette; Sand, Kristin Modalsli et al. (2015). Stroke patients' knowledge about cardiovascular family history - the Norwegian Stroke in the Young Study (NOR-SYS). (external link)
- Nacu, Aliona; Kvistad, Christopher Elnan; Logallo, Nicola et al. (2015). A pragmatic approach to sonothrombolysis in acute ischaemic stroke: The Norwegian randomised controlled sonothrombolysis in acute stroke study (NOR-SASS). (external link)
- Helvig, Eirik; Thomassen, Lars; Waje-Andreassen, Ulrike et al. (2015). Comparing withdrawal and non-withdrawal of life-sustaining treatment among patients who died from stroke. (external link)
- Bjerkreim, Anna Therese; Thomassen, Lars; Brøgger, Jan C et al. (2015). Causes and Predictors for Hospital Readmission after Ischemic Stroke. (external link)
- Bustamante, Alejandro; Sobrino, Tomás; Giralt, Dolors et al. (2014). Prognostic value of blood interleukin-6 in the prediction of functional outcome after stroke: A systematic review and meta-analysis. (external link)
- Logallo, Nicola; Fromm, Annette; Waje-Andreassen, Ulrike et al. (2014). Effect of microbubble contrast on intracranial blood flow velocity assessed by transcranial Doppler. (external link)
- Logallo, Nicola; Kvistad, Christopher Elnan; Nacu, Aliona et al. (2014). The Norwegian tenecteplase stroke trial (NOR-TEST): Randomised controlled trial of tenecteplase vs. alteplase in acute ischaemic stroke. (external link)
- Saeed, Sahrai; Waje-Andreassen, Ulrike; Fromm, Annette et al. (2014). Early vascular aging in young and middle-aged ischemic stroke patients: The Norwegian stroke in the young study. (external link)
- Bøthun, Marianne Lundervik; Fromm, Annette; Haaland, Øystein et al. (2014). Carotid intima-media thickness - a potential predictor for rupture risk of intracranial aneurysms. (external link)
- Øygarden, Halvor; Kvistad, Christopher Elnan; Bjørk, Marte Helene et al. (2014). Diffusion-weighted lesions in acute ischaemic stroke patients with migraine. (external link)
- Logallo, Nicola; Næss, Halvor; Waje-Andreassen, Ulrike et al. (2014). Prevalence of intracranial stenosis in a Norwegian ischemic stroke population. (external link)
- Waje-Andreassen, Ulrike; Thomassen, Lars (2014). Ulik behandling ved hjerneslag. (external link)
- Kvistad, Christopher Elnan; Khanevski, Andrej; Nacu, Aliona et al. (2014). Is higher body temperature beneficial in ischemic stroke patients with normal admission CT angiography of the cerebral arteries?. (external link)
- Næss, Halvor; Gjerde, Guro; Waje-Andreassen, Ulrike (2014). Ischemic stroke in patients older and younger than 80 years. (external link)
- Kvistad, Christopher Elnan; Øygarden, Halvor; Logallo, Nicola et al. (2014). A dark Side of subcortical diffusion-weighted lesions? Characteristics, cause, and outcome in large subcortical infarction: The Bergen Norwegian Stroke Cooperation Study. (external link)
- Kvistad, Christopher Elnan; Øygarden, Halvor; Logallo, Nicola et al. (2014). Is smoking associated with favourable outcome in tPA‐treated stroke patients?. (external link)
- Logallo, Nicola; Kvistad, Christopher Elnan; Næss, Halvor et al. (2014). Mild stroke: Safety and outcome in patients receiving thrombolysis. (external link)
- Fromm, Annette; Haaland, Øystein Ariansen; Næss, Halvor et al. (2014). Risk factors and their impact on carotid intima-media thickness in young and middle-aged ischemic stroke patients and controls: The Norwegian Stroke in the Young Study. (external link)
- Kvistad, Christopher Elnan; Logallo, Nicola; Thomassen, Lars et al. (2014). Diffusion-weighted lesions in stroke patients with transient symptoms - Where are they located?. (external link)
- Kvistad, Christopher Elnan; Thomassen, Lars; Waje-Andreassen, Ulrike et al. (2014). Body temperature and major neurological improvement in tPA-treated stroke patients. (external link)
- Fromm, Annette; Thomassen, Lars; Næss, Halvor et al. (2013). The Norwegian stroke in the young study (NOR-SYS): rationale and design. (external link)
- Næss, Halvor; Waje-Andreassen, Ulrike; Nyland, Harald Inge (2013). Risk factor burden predicts long-term mortality in young patients with arterial cerebral infarction. (external link)
- Øygarden, Halvor; Kvistad, Christopher Elnan; Thomassen, Lars et al. (2013). Does a history of migraine affect the rate of thrombolysis in young stroke patients?. (external link)
- Næss, Halvor; Nyland, Harald Inge; Idicula, Titto et al. (2013). C-reactive protein and homocysteine predict long-term mortality in young ischemic stroke patients. (external link)
- Kvistad, Christopher Elnan; Thomassen, Lars; Waje-Andreassen, Ulrike et al. (2013). Clinical implications of increased use of MRI in TIA. (external link)
- Kvistad, Christopher Elnan; Logallo, Nicola; Thomassen, Lars et al. (2013). Safety of off-label stroke treatment with tissue plasminogen activator. (external link)
- Barlas, Nilüfer Yeşilot; Putaala, Jukka; Waje-Andreassen, Ulrike et al. (2013). Etiology of first-ever ischaemic stroke in European young adults: the 15 cities young stroke study. (external link)
- Waje-Andreassen, Ulrike; Thomassen, Lars; Jusufovic, Mirza et al. (2013). Ischaemic stroke at a young age is a serious event final results of a population-based long-term follow-up in Western Norway. (external link)
- Kvistad, Christopher Elnan; Øygarden, Halvor; Thomassen, Lars et al. (2013). Persistent middle cerebral artery occlusion associated with lower body temperature on admission. (external link)
- Kvistad, Christopher Elnan; Logallo, Nicola; Øygarden, Halvor et al. (2013). Elevated Admission Blood Pressure and Stroke Severity in Acute Ischemic Stroke: The Bergen NORSTROKE Study. (external link)
- Næss, Halvor; Lunde, Lene; Brøgger, Jan C et al. (2012). Fatigue among stroke patients on long-term follow-up. The Bergen Stroke Study. (external link)
- Logallo, Nicola; Lind, Jonas Anders; Næss, Halvor et al. (2012). Middle cerebral artery stenosis: transcranial color-coded sonography based on continuity equation versus CT-angiography. (external link)
- Thomassen, Lars; Waje-Andreassen, Ulrike; Brøgger, Jan C et al. (2012). Acute stroke centre - the changing focus of stroke unit care. The Bergen NORSTROKE Study. (external link)
- Putaala, Jukka; Yesilot, Nilufer; Waje-Andreassen, Ulrike et al. (2012). Demographic and geographic vascular risk factor differences in European young adults with ischemic stroke : The 15 Cities Young Stroke Study. (external link)
- Logallo, Nicola; Næss, Halvor; Idicula, Titto et al. (2011). Serum uri acid: neuroprotection in thrombolysis. The Bergen NORSTROKE study. (external link)
- Thomassen, Lars; Storstein, Anette; Jusufovic, Mirza et al. (2011). En kvinne med tilbakevendende arteriovenøse tromboser. (external link)
- Fromm, Annette; Waje-Andreassen, Ulrike; Thomassen, Lars et al. (2011). Comparison between Ischemic Stroke Patients <50 Years and ≥50 Years Admitted to a Single Centre: The Bergen Stroke Study. (external link)
- Næss, Halvor; Idicula, Titto; Brøgger, Jan C et al. (2011). High Proportion of Lacunar Strokes at Night: The Bergen Stroke Study. (external link)
- Bjørk, Marte Helene; Thomassen, Lars; Waje-Andreassen, Ulrike (2011). Cerebrale arterielle karspasmer. (external link)
- Næss, Halvor; Fromm, Annette; Iversen, Ole-Erik et al. (2011). Decline of arterial cerebral infarction among young women: the Bergen Stroke Study. (external link)
- Næss, Halvor; Lunde, Lene; Brøgger, Jan et al. (2010). Depression predicts unfavourable functional outcome and higher mortality in stroke patients: The Bergen Stroke Study. (external link)
- Næss, Halvor; Idicula, Titto; Logallo, Nicola et al. (2010). Inverse relationship of baseline body temperature and outcome between ischemic stroke patients treated and not treated with thrombolysis: the Bergen stroke study. (external link)
- Næss, Halvor; Lunde, Lene; Brøgger, Jan et al. (2010). Post-stroke pain on long-term follow-up: the Bergen stroke study. (external link)
- Næss, Halvor; Brøgger, Jan C; Idicula, Titto et al. (2009). Clinical presentation and diffusion weighted MRI of acute cerebral infarction. The Bergen Stroke Study. (external link)
- Waje-Andreassen, Ulrike; Thomassen, Lars; Aarli, Ånen et al. (2009). Trombolytisk behandling ved arterielt hjerneinfarkt hos barn. (external link)
- Varga, Viktoria; Waje-Andreassen, Ulrike; Næss, Halvor et al. (2009). Trombolytisk behandling ved hjerneinfarkt. (external link)
- Idicula, Titto; Waje-Andreassen, Ulrike; Brøgger, Jan et al. (2009). Serum Albumin in Ischemic Stroke Patients: The Higher the Better. (external link)
- Idicula, Titto; Brøgger, Jan; Næss, Halvor et al. (2009). Admission C - reactive protein after acute ischemic stroke is associated with stroke severity and mortality: The 'Bergen stroke study'. (external link)
- Næss, Halvor; Brøgger, Jan; Waje-Andreassen, Ulrike et al. (2009). Preadmission use of warfarin improves short-term outcome in patients with acute cerebral infarction. (external link)
Academic literature review
- Myrmel, Gard Mikael Saele; Waje-Andreassen, Ulrike; Pirinen, Jani et al. (2025). Multimodality Cardiac Imaging in Ischemic Stroke: Insights into the Heart-Brain Interaction. (external link)
- Saeed, Sahrai; Waje-Andreassen, Ulrike; Nilsson, Peter M. (2020). The association of the metabolic syndrome with target organ damage: focus on the heart, brain, and central arteries. (external link)
- Øygarden, Halvor; Fromm, Annette; Sand, Kristin Modalsli et al. (2016). A family history of stroke is associated with increased intima-media thickness in young ischemic Stroke - The norwegian stroke in the young study (NOR-SYS). (external link)
- Næss, Halvor; Waje-Andreassen, Ulrike (2010). Review of long-term mortality and vascular morbidity amongst young adults with cerebral infarction. (external link)