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T. Sarkanen · SciRah

Researcher profile · Semantic Scholar

T. Sarkanen

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T. Sarkanen — researcher profile on SciRah

h-index: 14
Works: 49
Citations: 699

Most-cited papers

Incidence of narcolepsy after H1N1 influenza and vaccinations: Systematic review and meta-analysis.
T. Sarkanen, A. Alakuijala, Y. Dauvilliers, M. Partinen
2017Sleep Medicine Reviews183 citations Open access
Semantic Scholar
Narcolepsy patients have antibodies that stain distinct cell populations in rat brain and influence sleep patterns
P. Bergman, C. Adori, S. Vas, Y. Kai-Larsen +11 more
2014Proceedings of the National Academy of Sciences of the United States of America80 citations Open access
Semantic Scholar
Narcolepsy Associated with Pandemrix Vaccine
T. Sarkanen, A. Alakuijala, I. Julkunen, M. Partinen
2018Current Neurology and Neuroscience Reports64 citations Open access
Semantic Scholar
Childhood narcolepsy with cataplexy: comparison between post-H1N1 vaccination and sporadic cases.
F. Pizza, H. Peltola, T. Sarkanen, K. K. Moghadam +2 more
2014Sleep Medicine48 citations Open access
Semantic Scholar
Parkinson's disease and narcolepsy-like symptoms.
A. Ylikoski, K. Martikainen, T. Sarkanen, M. Partinen
2015Sleep Medicine32 citations
Semantic Scholar
Obesity and the Risk of Cryptogenic Ischemic Stroke in Young Adults.
Nina Jaakonmäki, M. Zedde, T. Sarkanen, N. Martinez-Majander +37 more
2022Journal of Stroke & Cerebrovascular Diseases29 citations Open access
Semantic Scholar
Accuracy of Actigraphy Compared to Concomitant Ambulatory Polysomnography in Narcolepsy and Other Sleep Disorders
A. Alakuijala, T. Sarkanen, Tomi Jokela, M. Partinen
2021Frontiers in Neurology25 citations Open access
Semantic Scholar
Hypocretin-1 Levels Associate with Fragmented Sleep in Patients with Narcolepsy Type 1.
A. Alakuijala, T. Sarkanen, M. Partinen
2016Sleep25 citations Open access
Semantic Scholar
Polysomnographic and actigraphic characteristics of patients with H1N1-vaccine-related and sporadic narcolepsy.
A. Alakuijala, T. Sarkanen, M. Partinen
2015Sleep Medicine25 citations
Semantic Scholar
Psychosis in Patients with Narcolepsy as an Adverse Effect of Sodium Oxybate
T. Sarkanen, Valter Niemelä, A. Landtblom, M. Partinen
2014Frontiers in Neurology25 citations Open access
Semantic Scholar
Clinical course of H1N1-vaccine-related narcolepsy.
T. Sarkanen, A. Alakuijala, M. Partinen
2016Sleep Medicine24 citations Open access
Semantic Scholar
Ullanlinna Narcolepsy Scale in diagnosis of narcolepsy
T. Sarkanen, A. Alakuijala, M. Partinen
2018Sleep18 citations Open access
Semantic Scholar
The relationship between orexin levels and blood pressure changes in patients with narcolepsy
M. Siemiński, K. Chwojnicki, T. Sarkanen, M. Partinen
2017PLoS ONE17 citations Open access
Semantic Scholar
Transient Impact of Rituximab in H1N1 Vaccination–associated Narcolepsy With Severe Psychiatric Symptoms
T. Sarkanen, R. Alén, M. Partinen
2016The Neurologist17 citations
Semantic Scholar
Association between hypersomnolence and the COVID-19 pandemic: The International COVID-19 Sleep Study (ICOSS)
T. Sarkanen, M. Partinen, B. Bjorvatn, I. Merikanto +19 more
2023Sleep Medicine14 citations Open access
Semantic Scholar
Association between heavy alcohol consumption and cryptogenic ischaemic stroke in young adults: a case–control study
N. Martinez-Majander, Shakar Kutal, P. Ylikotila, N. Yesilot +31 more
2024Journal of Neurology Neurosurgery & Psychiatry13 citations Open access
Semantic Scholar
Association Between Self-Perceived Stress and Cryptogenic Ischemic Stroke in Young Adults
Shakar Kutal, L. Tulkki, T. Sarkanen, P. Redfors +28 more
2025Neurology10 citations Open access
Semantic Scholar
Burden of Modifiable Risk Factors in Young-Onset Cryptogenic Ischemic Stroke by High-Risk Patent Foramen Ovale
J. Putaala, N. Martinez-Majander, Michelle H. Leppert, L. Tulkki +39 more
2025Stroke10 citations Open access
Semantic Scholar
Association of Left Atrial Stiffness With Risk of Cryptogenic Ischemic Stroke in Young Adults
R. Sindre, E. Gerdts, J. Putaala, L. Grymyr +21 more
2024JACC: Advances10 citations Open access
Semantic Scholar
24-hour ambulatory blood pressure and cryptogenic ischemic stroke in young adults
L. Tulkki, N. Martinez-Majander, P. Haapalahti, H. Tolppanen +17 more
2023Annals medicus7 citations Open access
Semantic Scholar
Post-vaccination hypersomnia - occurrence of idiopathic hypersomnia and narcolepsy type 2 after Pandemrix vaccination in a case- series from Sweden and Finland.
S. Berntsson, T. Sarkanen, Aleksandar Saric, A. Alakuijala +2 more
2025Journal of Neurological Sciences4 citations
Semantic Scholar
[Narcolepsy as an autoimmune disease].
T. Sarkanen, O. Vaarala, I. Julkunen, M. Partinen
2015Duodecim lääketieteellinen aikakauskirja4 citations
Semantic Scholar
Sleep During Pandemic Times: Summary of Findings and Future Outlook Through the Lens of the International COVID Sleep Study (ICOSS)
B. Bjorvatn, I. Merikanto, Frances Chung, B. Holzinger +26 more
2025Journal of Sleep Research3 citations
Semantic Scholar
Misdiagnosis of narcolepsy caused by a false-positive orexin-A/hypocretin-1 enzyme immune assay
T. Sarkanen, Gabriele Sved, Maria Juujärvi, A. Alakuijala +1 more
2022Journal of Clinical Sleep Medicine (JCSM)3 citations Open access
Semantic Scholar
Association of Hypertension With Early‐Onset Cryptogenic Ischemic Stroke by the Presence of Patent Foramen Ovale: A Case–Control Study
J. Putaala, B. von Sarnowski, Ulf Schminke, Raila Busch +35 more
2024Journal of the American Heart Association : Cardiovascular and Cerebrovascular Disease2 citations Open access
Semantic Scholar
Long-term sleep measurement with a smartphone-connected flexible bed sensor strip
J. Paalasmaa, T. Sarkanen, M. Partinen
20132 citations
Semantic Scholar
Association of Smoking and Young Cryptogenic Ischemic Stroke
P. Ferdinand, R. Bajpai, B. von Sarnowski, P. Ylikotila +23 more
2025Neurology Open Access1 citations Open access
Semantic Scholar
Long COVID as a risk factor for hypersomnolence and fatigue: insights from the 2nd International Covid Sleep Study Collaboration (ICOSS-2).
T. Sarkanen, I. Merikanto, B. Bjorvatn, Frances Chung +25 more
2025Sleep Medicine1 citations Open access
Semantic Scholar
Cervicocerebral Atherosclerosis and Atrial Fibrillation Increase Long-Term Mortality in Patients with Ischemic Stroke.
Kati Lainelehto, Juha-Pekka Pienimäki, Sirpa Savilahti, H. Huhtala +3 more
2025Journal of Stroke & Cerebrovascular Diseases1 citations Open access
Semantic Scholar
Rituximab treatment in a narcolepsy patient: Temporary relief of symptoms
T. Sarkanen, R. Alén, M. Partinen
20151 citations
Semantic Scholar
Narcolepsy with coexisting type 1 diabetes: a case report
T. Sarkanen, A. Huutoniemi, M. Partinen
20131 citations
Semantic Scholar
Cardiac Organ Damage in Young Adults with Cryptogenic Ischaemic Stroke: The SECRETO Study
R. Eilertsen, E. Gerdts, U. Waje-Andreassen, D. Cramariuc +29 more
2026High Blood Pressure & Cardiovascular Prevention0 citations Open access
Semantic Scholar
Thrombophilia Screening in Young Patients With Cryptogenic Ischemic Stroke
Sofie Abels, Maximilian C Sihvo, L. Tomppo, Shakar Kutal +27 more
2026Stroke0 citations Open access
Semantic Scholar
Corrigendum to "Long COVID as a risk factor for hypersomnolence and fatigue: insights from the 2nd International Covid Sleep Study Collaboration (ICOSS-2)" [Sleep Med. 136 (2025) 106764].
T. Sarkanen, I. Merikanto, B. Bjorvatn, Frances Chung +25 more
2026Sleep Medicine0 citations Open access
Semantic Scholar
Anti-beta2-glycoprotein I IgG antibodies are associated with early-onset cryptogenic ischemic stroke
Nina Jaakonmäki, T. Helin, T. Szántó, M. Zedde +24 more
2026European Stroke Journal0 citations Open access
Semantic Scholar
Association between sleep disturbances and cryptogenic ischemic stroke in young adults
T. Sarkanen, A. Kervinen, L. Tulkki, J. Huhtakangas +2 more
2026Sleep Medicine0 citations
Semantic Scholar
Association Between Recent Mechanical Risk Factors for Venous Thrombosis and Young-Onset Cryptogenic Ischemic Stroke
Julija Valančienė, P. Ylikotila, R. Lautamäki, M. Zedde +43 more
2026Stroke0 citations Open access
Semantic Scholar
Acute non-alcoholic caffeinated beverage consumption as a trigger for cryptogenic ischemic stroke in the young: findings from the SECRETO study
P. Ferdinand, Ram Bajpai, B. von Sarnowski, P. Ylikotila +25 more
2026Journal of Neurology0 citations Open access
Semantic Scholar
Preceding Infections and Coagulation Biomarkers in Early-Onset Cryptogenic Ischemic Stroke
Barbara M. Hulsen, Janneke P. Spiegelenberg, N. Martinez-Majander, L. Tulkki +25 more
2026Stroke0 citations Open access
Semantic Scholar
Family history of stroke and cardiovascular diseases in early-onset cryptogenic ischaemic stroke
Maximilian C Sihvo, P. Ylikotila, M. Zedde, Rosario Pascarella +31 more
2026European Stroke Journal0 citations Open access
Semantic Scholar
Exploring the interplay between depressive symptoms and seizure outcomes: A single-centre study of drug-resistant epilepsy patients treated with vagus nerve stimulation.
Outi Brander, M. Lehtinen, P. Basnyat, Niina Lähde +4 more
2025Epilepsy & Behavior0 citations Open access
Semantic Scholar
Anti-beta2-glycoprotein I IgG antibodies are associated with early-onset cryptogenic ischemic stroke
Nina Jaakonmäki, T. Helin, T. Szántó, M. Zedde +24 more
2025European Stroke Journal0 citations Open access
Semantic Scholar
Narcolepsy: clinical picture, diagnostics, and association with H1N1 vaccination
T. Sarkanen
20190 citations
Semantic Scholar
Accuracy of actigraphy compared to concomitant polysomnography in narcolepsy and other sleep disorders
Tomi Jokela, T. Sarkanen, A. Alakuijala, J. Toppila
20190 citations
Semantic Scholar
Narkolepsian moninainen oirekuva ja käypä diagnostiikka
M. Partinen, Anniina Alakuijala, T. Sarkanen, Gabriele Sved
20180 citations
Semantic Scholar
Liikaunisuuden kelpo hoito
T. Sarkanen, Anniina Alakuijala, M. Partinen
20170 citations
Semantic Scholar
Psychosis in narcolepsy as a side effect of sodium oxybate
T. Sarkanen, Valter Niemelä, A. Landtblom, M. Partinen
20140 citations
Semantic Scholar
Narcolepsy-like symptoms in Parkinson's disease
A. Ylikoski, K. Martikainen, T. Sarkanen, A. Huutoniemi +1 more
20140 citations
Semantic Scholar
Symptoms of narcolepsy in relation to pandemrix vaccination and CSF-hypocretin-1 levels
T. Sarkanen, A. Huutoniemi, M. Partinen
20130 citations
Semantic Scholar

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P. Jäkälä×17
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P. Ylikotila×16
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