Espen Saxhaug Kristoffersen

Førsteamanuensis - Avdeling for allmennmedisin
Bilde av Espen Saxhaug Kristoffersen
English version of this page
Mobiltelefon +47 97665483
Brukernavn
Besøksadresse Kirkeveien 166 Fredrik Holsts hus 0450 Oslo
Postadresse Postboks 1130 Blindern 0318 Oslo

ORCID: 0000-0002-8999-5424

Researchgate

Academic interests

  • Headache/migraine/cluster headache incl. epidemiology, treatment effects, cardiovascular risk, biomarkers, genetics, epigenetics and imaging
  • Stroke (prevention, acute treatment)
  • Cerebral Venous Thrombosis (epidemiology, risk factors, treatment and long-term prognosis
  • General Practice/Neurology
  • Mountain medicine, wilderness medicine, rescue medicine

Education/background

  • 2019-: Senior consultant, Stroke Unit and Department of Neurology, Akershus University Hospital (Ahus), Norway
  • 2018-: Leader Work Package 2, Recruitment and Research of PraksisNett, a research infrastructure funded by Norwegian Research Council and the University of Oslo, Norway
  • 2017 to present: Associate professor, Department of General Practice, University of Oslo
  • 2014-2017: Postdoctoral fellow, Department of General Practice, University of Oslo
  • 2013-2019: resident, Department of Neurology, Akershus University Hospital
  • 2014: Ph.d with the thesis “Brief Intervention for Medication-overuse headache in primary care”
  • 2008-2014: PhD student - Department of General Practice, University of Oslo
  • 2011: part-time at the central primary care emergency ward in Oslo
  • 2010: General practitioner (part-time) in the municipality of Høyanger
  • 2007-08: General practitioner and chief medical officer in the municipality of Høyanger
  • 2005-07: Intern at Department of Medicine, Orthopedics and Surgery at Helse Førde hospital (Nordfjord/Førde) and the municipality of Balestrand
  • 2004-05:  Six months as resident doctor with students licentia practicandi at the Acute psychiatric ward, the University Hospital of Northern Norway (UNN)
  • 2004 Medical students mandatory practice period at Longyearbyen Hospital, Svalbard 3 months
  • 2003 Medical students mandatory practice period at Internal Medicine and Surgery, Hammerfest Hospital 2+2 months
  • 2005: Medical degree (MD) University of Tromsø
  • 1999-2005: Medical school, University Of Tromsø

Positions held

  • 2020-to present: Board member of the Nansen Neuroscience Network
  • 2019-to present: Member of the Special Interest Group of Secondary headaches, International Headache Society (IHS)
  • 2019-to present: Member of the Reference group at the Norwegian Advisory Unit on Headache, St. Olav's Hospital, Trondheim, Norway.
  • 2019-2022: Member of the Education Committee of the International Headache Society (IHS)
  • 2018-to present: Norwegian representative International Headache Society and European Headache Federation
  • 2017-to present: Board member and vice-chair of the Norwegian Headache Society
  • 2016-to present: Member of European Academy of Neurology (EAN) Scientific Panel Headache
  • 2014-2021: Board member of the International Headache Society (IHS) Trainees and Residents Special Interest Group
  • 2013-2014: Member of the group “AG4 – kommunesektoren” in the national strategy process ”HelseOmsorg21”.
  • 2012-13: Member of the project group within the Norwegian Medical Association (representing the College of General Practice), working with the plan for further
    development of the Norwegian list patient system (“Opptrappingsplan for fastlegeordningen 2015-2020”).
  • 2012-2013: Board member of Oslo Legeforening (the largest local part of the Norwegian Medical Association)
  • 2011-2015:  Board member of LVS (Doctors in Scientific Positions) at the Norwegian Medial Association
  • 2011-2015: Founding member of the Project Group (ALIS-utvalget) within the  Norwegian College of General Practice, working with recruitment schemes for younger doctors into primary care
  • 2010-12: Board member of the PhD forum at HELSAM (The institute of general practice and public health) , University of Oslo
  • 2009-to present: Member of the Network Group for Out-Of-Hours Services at Norwegian College of General Practice (part of the Norwegian Medical Association)

Awards

  • European Academy of Neurology (EAN) Investigator Award for the subspecialty Headache - 1st EAN Congress Berlin, Germany June 2015
  • Norwegian Neurological Federation  - National Headache fellowship 2018
  • Best poster presentation at the Norwegian Neurology Congress 2018
  • Forsberg og Aulies legat 2018
  • Norwegian Neurological Federation – National Neurology Fellowship 2020

Project management experience (Project leader)

   Completed studies

  • 2013-2017 Long-term follow-up of a Brief intervention for Medication Overuse Headache – in primary care (own post.doc, funded by University of Oslo)
  • 2016-2018 Neurology residents’ knowledge of the management of headache
  • 2016-2019 Norwegian GPs experience and training in handling of headache patients
  • 2020 Stroke during a pandemic (StrokePan)
  • 2020 Neurology during a pandemic (NeuroPan)

    Ongoing studies

  • 2017- The Akershus aCute Headache Evaluation 1 (ACHE-1) study. Epidemiology, clinical presentation, treatment and follow-up of subarachnoid haemorrhage in a Norwegian population
  • 2017- The Akershus Study of Ischemic Stroke and Thrombolysis 1 (ASIST-1)
  • 2018- The Akershus Cerebellar Haemorrhage Evaluation study (ACHE-3)
  • 2018- Epidemiology, clinical and radiological presentation and prognosis of cerebral venous thrombosis in a Norwegian population (NoCVT)
  • 2019 - Job satisfaction, career and burn-out among neurologists in Norway
  • 2019 - Multidisciplinary headache treatment
  • 2020- Secondary prevention in Stroke - a nationwide register-linked prospective follow-up study in general practice
  • 2020- Exploring the biology of Cluster Headache
  • 2021- Exploring the biology, treatment and prognosis of cerebral venous thrombosis

Major International collaborations (all on-going)

  • 2016 - HUNT All-In project Headache
  • 2016 - International Cluster Headache Genetics Consortium
  • 2018 - Different research projects on migraine, telemedicine, cluster headache, headache education, GPs handling of headache and medication-overuse headache with Danish Headache Centre, DK
  • 2019 - HUNT All-In project Cerebrovascular diseases
  • 2019 - International Migraine Genetics Consortium
  • 2019 - International Headache Society Secondary headaches projects
  • 2020 - The Global COVID-19 Stroke Registry led by Raul Nogueira, US
  • 2021 - International Cerebral Venous Thrombosis Consortium
  • 2021 - The Global COVID-19 CVT Registry led by Thanh Nguyen, US
  • 2021 - International CVT consortium post-vaccine study led by Jonathan Couthino, Netherland
  • 2021 - CVT-AIM (CVT and Autoimmune diseases), led by Dr. Sini Hiltunen, Helsinki, Finland
  • 2022 - DOAC-IVT, led by Dr. David Seiffge, Bern, Sveits
  • International treatment studies (investigator-initiated):
  • National leader ExCOA-CVT (treatment study of warfarin in CVT), led by prof. Jóse Ferro, Lisbon, Portugal
  • National leader DOAC-CVT (treatment study of DOAC in CVT), led by prof. Jonathan Couthino, Amsterdam, Netherland
  • PI at Akershus University Hospital – ELAN study, led by prof. Urs Fischer, Bern, Switzerland

Courses taught

  • 2021- Headache Master Programme, Danish Headache Centre, University of Copenhagen, DK
  • 2020- Censorship Headache Master Programme, Danish Headache Centre, University of Copenhagen, DK
  • 2008-to present: Teaching and censorship in various terms (including final exams) in Medical School at the University of Oslo
  • 2010-12: Various lectures held twice a year at the Oslo Emergency ward for the doctors there as a part of their educational activity
  • 2010-12: Teaching CME groups about headache
  • 2010-12: Project and course leader for a CME course called Management of chronic headache in primary care – course held 11 times (15 hours each course)

Publikasjoner

  • Kristoffersen, Espen Saxhaug; Bjorvatn, Bjørn; Halvorsen, Peder Andreas; Nilsen, Stein; Fossum, Guro Haugen & Fors, Egil Andreas [Vis alle 12 forfattere av denne artikkelen] (2022). The Norwegian PraksisNett: a nationwide practice-based research network with a novel IT infrastructure. Scandinavian Journal of Primary Health Care. ISSN 0281-3432. 40(2). doi: 10.1080/02813432.2022.2073966.
  • Bahrami, Shahram; Hindley, Guy Frederick Lanyon; Winsvold, Bendik K S; O'Connell, Kevin Sean; Frei, Oleksandr & Shadrin, Alexey [Vis alle 39 forfattere av denne artikkelen] (2022). Dissecting the shared genetic basis of migraine and mental disorders using novel statistical tools. Brain. ISSN 0006-8950. 145(1), s. 142–153. doi: 10.1093/brain/awab267. Fulltekst i vitenarkiv
  • Bergh, Elin; Jahr, Silje Holt; Rønning, Ole Morten; Askim, Torunn; Thommessen, Bente & Kristoffersen, Espen Saxhaug (2022). Reasons and predictors of non-thrombolysis in patients with acute ischemic stroke admitted within 4.5 h. Acta Neurologica Scandinavica. ISSN 0001-6314. doi: 10.1111/ane.13622.
  • Do, Thien Phu; Dømgaard, Mikala; Stefansen, Simon; Kristoffersen, Espen Saxhaug; Ashina, Messoud & Hansen, Jakob Møller (2022). Barriers and gaps in headache education: a national cross-sectional survey of neurology residents in Denmark. BMC Medical Education. ISSN 1472-6920. 22(1). doi: 10.1186/s12909-022-03299-6.
  • Siddiqui, Tahreem Ghazal; Bjelkarøy, Maria Torheim; Cheng, Socheat; Kristoffersen, Espen Saxhaug; Grambaite, Ramune & Lundqvist, Christofer (2022). The effect of cognitive function and central nervous system depressant use on mortality—A prospective observational study of previously hospitalised older patients. PLOS ONE. ISSN 1932-6203. 17(3). doi: 10.1371/journal.pone.0263024. Fulltekst i vitenarkiv
  • Romoli, Michele; Eusebi, Paolo; Forlivesi, Stefano; Gentile, Mauro; Giammello, Fabrizio & Piccolo, Laura [Vis alle 20 forfattere av denne artikkelen] (2021). Stroke network performance during the first COVID-19 pandemic stage: A meta-analysis based on stroke network models. International Journal of Stroke. ISSN 1747-4930. 16(7), s. 771–783. doi: 10.1177/17474930211041202.
  • Nogueira, Raul; Qureshi, Muhammad; Abdalkader, Mohamad; Martins, Sheila; Yamagami, Hiroshi & Qiu, Zhongming [Vis alle 50 forfattere av denne artikkelen] (2021). Global Impact of COVID-19 on Stroke Care and IV Thrombolysis. Neurology. ISSN 0028-3878. 96(23), s. e2824–e2838. doi: 10.1212/WNL.0000000000011885.
  • Bjelkarøy, Maria Torheim; Cheng, Socheat; Siddiqui, Tahreem Ghazal; Saltyte Benth, Jurate; Grambaite, Ramune & Kristoffersen, Espen Saxhaug [Vis alle 7 forfattere av denne artikkelen] (2021). The association between pain and central nervous system depressing medication among hospitalised Norwegian older adults. Scandinavian Journal of Pain. ISSN 1877-8860. s. 1–11. doi: 10.1515/sjpain-2021-0120. Fulltekst i vitenarkiv
  • Stubberud, Anker; Buse, Dawn C.; Kristoffersen, Espen Saxhaug; Linde, Mattias & Tronvik, Erling Andreas (2021). Is there a causal relationship between stress and migraine? Current evidence and implications for management. The Journal of Headache and Pain. ISSN 1129-2369. 22, s. 1–11. doi: 10.1186/s10194-021-01369-6. Fulltekst i vitenarkiv
  • Kristoffersen, Espen Saxhaug; Faiz, Kashif Waqar; Hansen, Jakob Møller; Tronvik, Erling Andreas; Frich, Jan C & Lundqvist, Christofer [Vis alle 7 forfattere av denne artikkelen] (2021). The management and clinical knowledge of headache disorders among general practitioners in Norway: a questionnaire survey. The Journal of Headache and Pain. ISSN 1129-2369. 22(1), s. 1–11. doi: 10.1186/s10194-021-01350-3. Fulltekst i vitenarkiv
  • Harder, Aster V.E.; Winsvold, Bendik K S; Noordam, Raymond; Vijfhuizen, Lisanne S.; Børte, Sigrid & Kogelman, Lisette J.A. [Vis alle 22 forfattere av denne artikkelen] (2021). Genetic Susceptibility Loci in Genomewide Association Study of Cluster Headache. Annals of Neurology. ISSN 0364-5134. 90(2), s. 203–216. doi: 10.1002/ana.26146. Fulltekst i vitenarkiv
  • García-Azorín, David; Do, Thien Phu; Gantenbein, Andreas R.; Hansen, J. M.; Souza, Marcio Nattan P. & Obermann, Mark [Vis alle 12 forfattere av denne artikkelen] (2021). Delayed headache after COVID-19 vaccination: a red flag for vaccine induced cerebral venous thrombosis. The Journal of Headache and Pain. ISSN 1129-2369. 22(1), s. 1–5. doi: 10.1186/s10194-021-01324-5.
  • Bjørk, Marte-Helene; Kristoffersen, Espen Saxhaug; Tronvik, Erling Andreas & Nordeng, Hedvig Marie Egeland (2021). Management of cluster headache and other trigeminal autonomic cephalalgias in pregnancy and breastfeeding. European Journal of Neurology. ISSN 1351-5101. 28(7), s. 2443–2455. doi: 10.1111/ene.14864. Fulltekst i vitenarkiv
  • Kristoffersen, Espen Saxhaug; Winsvold, Bendik K S; Sandset, Else Charlotte; Storstein, Anette & Faiz, Kashif Waqar (2021). Experiences, distress and burden among neurologists in Norway during the COVID-19 pandemic. PLOS ONE. ISSN 1932-6203. 16:e0246567(2), s. 1–14. doi: 10.1371/journal.pone.0246567. Fulltekst i vitenarkiv
  • Kristoffersen, Espen Saxhaug; Jahr, Silje Holt; Faiz, Kashif Waqar; Thommessen, Bente & Rønning, Ole M. (2021). Stroke admission rates before, during and after the first phase of the COVID-19 pandemic. Neurological Sciences. ISSN 1590-1874. 42(3), s. 791–798. doi: 10.1007/s10072-021-05039-y.
  • Pohl, Heiko; Do, Thien Phu; García-Azorín, David; Hansen, Jakob Møller; Kristoffersen, Espen Saxhaug & Nelson, Sarah E. [Vis alle 13 forfattere av denne artikkelen] (2021). Green Flags and headache: A concept study using the Delphi method. Headache. ISSN 0017-8748. 61(2), s. 300–309. doi: 10.1111/head.14054.
  • Kristoffersen, Espen Saxhaug; Jahr, Silje Holt; Faiz, Kashif Waqar; Storstein, Anette; Winsvold, Bendik K S & Sandset, Else Charlotte (2021). Acute stroke care during the first phase of COVID-19 pandemic in Norway. Acta Neurologica Scandinavica. ISSN 0001-6314. 143(4), s. 349–354. doi: 10.1111/ane.13392.
  • Cheng, Socheat; Siddiqui, Tahreem Ghazal; Gossop, Michael; Wyller, Torgeir Bruun; Kristoffersen, Espen Saxhaug & Lundqvist, Anders Christofer (2021). The patterns and burden of multimorbidity in geriatric patients with prolonged use of addictive medications. Aging Clinical and Experimental Research. ISSN 1594-0667. 33, s. 2857–2864. doi: 10.1007/s40520-021-01791-5. Fulltekst i vitenarkiv
  • Kristoffersen, Espen Saxhaug; Sandset, Else Charlotte; Winsvold, Bendik K S; Faiz, Kashif Waqar & Storstein, Anette Margrethe (2020). Experiences of telemedicine in neurological out-patient clinics during the COVID-19 pandemic. Annals of clinical and translational neurology. ISSN 2328-9503. s. 1–8. doi: 10.1002/acn3.51293. Fulltekst i vitenarkiv
  • Kristoffersen, Epen Saxhaug; Faiz, Kashif Waqar; Sandset, Else Charlotte; Storstein, Anette; Stefansen, Simon & Winsvold, Bendik K S [Vis alle 7 forfattere av denne artikkelen] (2020). Hospital-based headache care during the Covid-19 pandemic in Denmark and Norway. The Journal of Headache and Pain. ISSN 1129-2369. 21(128). doi: 10.1186/s10194-020-01195-2. Fulltekst i vitenarkiv
  • Kristoffersen, Espen Saxhaug; Børte, Sigrid; Hagen, Knut; Zwart, John-Anker & Winsvold, Bendik K S (2020). Caesarean section and the association with migraine: a retrospective register-linked HUNT population cohort study. BMJ Open. ISSN 2044-6055. 10. doi: 10.1136/bmjopen-2020-040685. Fulltekst i vitenarkiv
  • Kristoffersen, Espen Saxhaug; Harper, Charlotte Elena; Vetvik, Kjersti; Zarnovicky, Svetozar; Hansen, Jakob Møller & Faiz, Kashif Waqar (2020). Incidence and mortality of cerebral venous thrombosis in a Norwegian population. Stroke. ISSN 0039-2499. 51(10), s. 3023–3029. doi: 10.1161/STROKEAHA.120.030800.
  • Ntaios, George; Michel, Patrik; Georgiopoulos, Georgios; Guo, Yutao; Li, Wencheng & Xiong, Jing [Vis alle 68 forfattere av denne artikkelen] (2020). Characteristics and outcomes in patients with COVID-19 and acute ischemic stroke: The Global COVID-19 Stroke Registry. Stroke. ISSN 0039-2499. s. 254–258. doi: 10.1161/STROKEAHA.120.031208.
  • Cheng, Socheat; Siddiqui, Tahreem Ghazal; Gossop, Michael; Stavem, Knut; Kristoffersen, Espen Saxhaug & Lundqvist, Christofer (2020). Health-related quality of life in hospitalized older patients with versus without prolonged use of opioid analgesics, benzodiazepines, and z-hypnotics: a cross-sectional study. BMC Geriatrics. ISSN 1471-2318. 20(425), s. 1–9. doi: 10.1186/s12877-020-01838-8. Fulltekst i vitenarkiv
  • Kristoffersen, Espen Saxhaug; Børte, Sigrid; Hagen, Knut; Zwart, John-Anker & Winsvold, Bendik K S (2020). Migraine, obesity and body fat distribution - a population-based study. The Journal of Headache and Pain. ISSN 1129-2369. 21, s. 1–8. doi: 10.1186/s10194-020-01163-w. Fulltekst i vitenarkiv
  • Diener, Hans-Christoph; Antonaci, Fabio; Braschinsky, Mark; Evers, Stefan; Jensen, Rigmor & Laínez, Jose Miguel [Vis alle 10 forfattere av denne artikkelen] (2020). European Academy of Neurology guideline on the management of medication-overuse headache. European Journal of Neurology. ISSN 1351-5101. 27(7), s. 1102–1116. doi: 10.1111/ene.14268. Fulltekst i vitenarkiv
  • Siddiqui, Tahreem Ghazal; Cheng, Socheat; Gossop, Michael; Kristoffersen, Espen Saxhaug; Grambaite, Ramune & Lundqvist, Christofer (2020). Association between prescribed central nervous system depressant drugs, comorbidity and cognition among hospitalised older patients: a cross-sectional study. BMJ Open. ISSN 2044-6055. 10(7). doi: 10.1136/bmjopen-2020-038432. Fulltekst i vitenarkiv
  • Kristoffersen, Espen Saxhaug; Jahr, Silje Holt; Thommessen, Bente & Rønning, Ole M. (2020). Effect of COVID-19 pandemic on stroke admission rates in a Norwegian population. Acta Neurologica Scandinavica. ISSN 0001-6314. 142, s. 632–636. doi: 10.1111/ane.13307. Fulltekst i vitenarkiv
  • Børte, Sigrid; Zwart, John-Anker; Skogholt, Anne Heidi; Gabrielsen, Maiken Elvestad; Thomas, Laurent & Fritsche, Lars [Vis alle 18 forfattere av denne artikkelen] (2020). Mitochondrial genome-wide association study of migraine – the HUNT Study . Cephalalgia. ISSN 0333-1024. 40(6), s. 625–634. doi: 10.1177/0333102420906835. Fulltekst i vitenarkiv
  • Kristoffersen, Espen Saxhaug; Winsvold, Bendik K S & Faiz, Kashif Waqar (2019). Prestige of neurological disorders among future neurologists in Norway. Acta Neurologica Scandinavica. ISSN 0001-6314. 139(6), s. 555–558. doi: 10.1111/ane.13087.
  • Kristoffersen, Espen Saxhaug; Saltyte Benth, Jurate; Straand, Jørund; Russell, Michael Bjørn & Lundqvist, Christofer (2019). Validity of self-reported assessment of severity of dependence scale in medication-overuse headache. Scandinavian Journal of Pain. ISSN 1877-8860. 19(4), s. 837–841. doi: 10.1515/sjpain-2019-0022.
  • Lundqvist, Christofer; Gossop, Michael; Russell, Michael Bjørn; Straand, Jørund & Kristoffersen, Espen Saxhaug (2019). Severity of Analgesic Dependence and Medication-overuse Headache . Journal of addiction medicine. ISSN 1932-0620. 13(5), s. 346–353. doi: 10.1097/ADM.0000000000000504.
  • Fetveit, Arne; Straand, Jørund; Bjorvatn, Bjørn & Kristoffersen, Espen Saxhaug (2019). Self-reported sleeplessness in 12,655 persons living in the north of Norway: The Tromsø Study. Sleep Science. ISSN 1984-0659. 12(3), s. 147–155. doi: 10.5935/1984-0063.20190070. Fulltekst i vitenarkiv
  • Hagen, Knut; Stovner, Lars Jacob; Nilsen, Kristian Bernhard; Kristoffersen, Espen Saxhaug & Winsvold, Bendik K S (2019). The impact of C-reactive protein levels on headache frequency in the HUNT study 2006-2008. BMC Neurology. ISSN 1471-2377. 19, s. 1–8. doi: 10.1186/s12883-019-1462-8. Fulltekst i vitenarkiv
  • Cheng, Socheat; Siddiqui, Tahreem Ghazal; Gossop, Michael; Kristoffersen, Espen Saxhaug & Lundqvist, Christofer (2019). Sociodemographic, clinical and pharmacological profiles of medication misuse and dependence in hospitalised older patients in Norway: a prospective cross-sectional study. BMJ Open. ISSN 2044-6055. 9:e0311483(9), s. 1–9. doi: 10.1136/bmjopen-2019-031483. Fulltekst i vitenarkiv
  • Snoer, A. H.; Lund, N.; Jensen, R. H.; Kristoffersen, Espen Saxhaug; Barloese, Mads & Hansen, J. M. (2019). More precise phenotyping of cluster headache using prospective attack reports. European Journal of Neurology. ISSN 1351-5101. doi: 10.1111/ene.13980.
  • Cheng, Socheat; Siddiqui, Tahreem Ghazal; Gossop, Michael; Kristoffersen, Espen Saxhaug & LUNDQVIST, CHRISTOFER (2019). The Severity of Dependence Scale detects medication misuse and dependence among hospitalized older patients. BMC Geriatrics. ISSN 1471-2318. 19(1), s. 1–8. doi: 10.1186/s12877-019-1182-3. Fulltekst i vitenarkiv
  • Aamodt, Anne Hege; Bjørk, Marte-Helene; Alstadhaug, Karl Bjørnar; Eldøen, Guttorm; Dueland, Aud Nome & Poole, Tine [Vis alle 14 forfattere av denne artikkelen] (2019). Praktisk håndtering av hodepine. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 139(7), s. 617–620. doi: 10.4045/tidsskr.18.0837. Fulltekst i vitenarkiv
  • Kristoffersen, Espen Saxhaug; Faiz, Kashif Waqar & Winsvold, Bendik K S (2019). Neurology residents’ knowledge of the management of headache. Cephalalgia. ISSN 0333-1024. 39(11), s. 1396–1406. doi: 10.1177/0333102419847973.
  • Kristoffersen, Espen Saxhaug; Stavem, Knut; LUNDQVIST, CHRISTOFER & Russell, Michael Bjørn (2019). The impact of chronic headache on workdays, unemployment and disutility in the general population. Journal of Epidemiology and Community Health. ISSN 0143-005X. doi: 10.1136/jech-2018-211127.
  • Kristoffersen, Espen Saxhaug; LUNDQVIST, CHRISTOFER & Russell, Michael Bjørn (2019). Illness perception in people With primary and secondary chronic headache in the general population. Journal of Psychosomatic Research. ISSN 0022-3999. 116, s. 83–92. doi: 10.1016/j.jpsychores.2018.12.001.
  • Bjorvatn, Bjørn; Pallesen, Ståle; Moen, Bente Elisabeth; Waage, Siri & Kristoffersen, Espen Saxhaug (2018). Migraine, tension-type headache and medication-overuse headache in a large population of shift working nurses: a cross-sectional study in Norway. BMJ Open. ISSN 2044-6055. 8(11), s. 1–7. doi: 10.1136/bmjopen-2018-022403. Fulltekst i vitenarkiv
  • Kristoffersen, Espen Saxhaug; Harper, Charlotte Elena; Vetvik, Kjersti & Faiz, Kashif Waqar (2018). Cerebral venetrombose – forekomst, diagnostikk og behandling. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 138(12). doi: 10.4045/tidsskr.17.1047.
  • Kristoffersen, Espen Saxhaug; Aaseth, Kjersti; Grande, Ragnhild Berling; LUNDQVIST, CHRISTOFER & Russell, Michael Bjørn (2018). Psychological distress, neuroticism and disability associated with secondary chronic headache in the general population - The Akershus study of chronic headache. The Journal of Headache and Pain. ISSN 1129-2369. 18(62). doi: 10.1186/s10194-018-0894-7. Fulltekst i vitenarkiv
  • Kristoffersen, Espen Saxhaug; Grande, Ragnhild Berling; Aaseth, Kjersti; Russell, Michael Bjørn & LUNDQVIST, CHRISTOFER (2018). Medication-overuse headache detoxification reduces headache disability - The Akershus study of chronic headache. European Journal of Neurology. ISSN 1351-5101. 25(9), s. 1140–1147. doi: 10.1111/ene.13674.
  • Faiz, Kashif Waqar & Kristoffersen, Espen Saxhaug (2018). Association between age and outpatient clinic arrival time: Myth or reality? BMC Health Services Research. ISSN 1472-6963. 18(235). doi: 10.1186/s12913-018-3057-2. Fulltekst i vitenarkiv
  • Alstadhaug, Karl Bjørnar; Ofte, Hilde Karen & Kristoffersen, Espen Saxhaug (2018). Prävention und Therapie des Medikamentenübergebrauchskopfschmerzes. Der Schmerz (Berlin. Print). ISSN 0932-433X. 32(3), s. 201–206. doi: 10.1007/s00482-018-0295-5.
  • Hagen, Knut; Kristoffersen, Espen Saxhaug; Winsvold, Bendik K S; Stovner, Lars Jacob & Zwart, John-Anker (2018). Remission of chronic headache: An 11-year follow-up study. Data from the Nord-Trøndelag Health Surveys 1995–1997 and 2006–2008. Cephalalgia. ISSN 0333-1024. 38(14), s. 2026–2034 . doi: 10.1177/0333102418769940. Fulltekst i vitenarkiv
  • Kristoffersen, Espen Saxhaug; Stavem, Knut; LUNDQVIST, CHRISTOFER & Russell, Michael Bjørn (2018). Excessive daytime sleepiness in chronic migraine and chronic tension-type headache from the general population. Cephalalgia. ISSN 0333-1024. 38(5), s. 993–997. doi: 10.1177/0333102417721133.

Se alle arbeider i Cristin

  • Bjelkarøy, Maria Torheim; Simonsen, Tone Breines; Siddiqui, Tahreem Ghazal; Halset, Sigrid; Cheng, Socheat & Grambaite, Ramune [Vis alle 10 forfattere av denne artikkelen] (2022). Brief intervention as a method for reducing use of z-hypnotics in older adult – a feasibility study .
  • Bjelkarøy, Maria Torheim; Simonsen, Tone Breines; Siddiqui, Tahreem Ghazal; Halset, Sigrid; Cheng, Socheat & Grambaite, Ramune [Vis alle 10 forfattere av denne artikkelen] (2022). Brief intervention as a method for reducing use of z-hypnotics in older adult – a feasibility study .
  • Nilsen, Stein; Bjorvatn, Bjørn & Kristoffersen, Espen Saxhaug (2021). PraksisNett- status etter tre år. Utposten. ISSN 0800-5680. 2-2021.
  • Bjelkarøy, Maria Torheim; Siddiqui, Tahreem Ghazal; Cheng, Socheat; Benth, Jurate Saltythè; Simonsen, Tone Breines & Halset, Sigrid [Vis alle 9 forfattere av denne artikkelen] (2021). Brief intervention as a method for reducing z hypnotics in the older adult a feasibility study.
  • Bjelkarøy, Maria Torheim; Cheng, Socheat; Siddiqui, Tahreem Ghazal; Benth, Jurate Saltythè; Grambaite, Ramune & Kristoffersen, Espen Saxhaug [Vis alle 7 forfattere av denne artikkelen] (2021). Pain and central nervous system depressing medication in hospitalised Norwegian older adults.
  • Bjelkarøy, Maria Torheim; Cheng, Socheat; Siddiqui, Tahreem Ghazal; Benth, Jurate Saltythè; Grambaite, Ramune & Kristoffersen, Espen Saxhaug [Vis alle 7 forfattere av denne artikkelen] (2021). Pain and central nervous system depressing medication in hospitalised Norwegian older adults.
  • Bjelkarøy, Maria Torheim; Cheng, Socheat; Siddiqui, Tahreem Ghazal; Benth, Jūratė Šaltytė; Grambaite, Ramune & Kristoffersen, Espen Saxhaug [Vis alle 7 forfattere av denne artikkelen] (2021). The association between pain and central nervous system depressing medication among hospitalised Norwegian older adults ( - and onwards from there; a pilot RCT).
  • Kristoffersen, Espen Saxhaug; Faiz, Kashif Waqar; Sandset, Else Charlotte; Storstein, Anette; Stefansen, Simon & Winsvold, Bendik K S [Vis alle 7 forfattere av denne artikkelen] (2020). Correction to: Hospital-based headache care during the Covid-19 pandemic in Denmark and Norway (The Journal of Headache and Pain, (2020), 21, 1, (128), 10.1186/s10194-020-01195-2). The Journal of Headache and Pain. ISSN 1129-2369. 21(1). doi: 10.1186/s10194-020-01199-y.
  • Bjelkarøy, Maria Torheim; Cheng, Socheat; Siddiqui, Tahreem Ghazal; Grambaite, Ramune; Kristoffersen, Espen Saxhaug & Lundqvist, Christofer (2020). P.424 Prolonged use of central nervous system depressant medication and cognitive function are associated with experienced pain among older adults.
  • Kristoffersen, Espen Saxhaug (2019). Cerebral venetrombose.
  • Cheng, Socheat; Siddiqui, Tahreem Ghazal; Gossop, Michael; Kristoffersen, Espen Saxhaug & Lundqvist, Christofer (2019). Characteristics of at-risk patients and a reliable screening tool for detecting medication dependence among elderly patients. European Journal of Neurology. ISSN 1351-5101. 26.
  • Siddiqui, Tahreem Ghazal; Cheng, Socheat; Grambaite, Ramune; Michele, Gossop; Kristoffersen, Espen Saxhaug & Lundqvist, Christofer (2019). Long-term use of central nervous system depressant medications is associated with reduced cognitive function in hospitalised older patients: a cross sectional study. European Journal of Neurology. ISSN 1351-5101. 26.
  • Harper, Charlotte Elena; Faiz, Kashif Waqar; Vetvik, Kjersti; Zarnovicky, Svetozar; Hansen, Jakob Møller & Kristoffersen, Espen Saxhaug (2019). Incidence and mortality of cerebral venous thrombosis in a Norwegian population. European Journal of Neurology. ISSN 1351-5101. 26, s. 382–382.
  • Kristoffersen, Espen Saxhaug; REICHENBACH, ANTJE; Faiz, Kashif Waqar; Altmann, Marianne; Sundseth, Antje & Thommessen, Bente [Vis alle 7 forfattere av denne artikkelen] (2019). Is it possible to detect large-vessel occlusions in acute ischemic stroke using screening scales? European Journal of Neurology. ISSN 1351-5101. 26.
  • Harper, Charlotte Elena; Faiz, Kashif Waqar; Vetvik, Kjersti; Zarnovicky, Svetozar; Hansen, Jakob Møller & Kristoffersen, Espen Saxhaug (2019). INCIDENCE AND MORTALITY OF CEREBRAL VENOUS THROMBOSIS IN A NORWEGIAN POPULATION. European Stroke Journal. ISSN 2396-9873. 4, s. 321–322. doi: 10.1177/2396987319845581.
  • Kristoffersen, Espen Saxhaug; REICHENBACH, ANTJE; Faiz, Kashif Waqar; Altmann, Marianne; Sundseth, Antje & Thommessen, Bente [Vis alle 7 forfattere av denne artikkelen] (2019). IS IT POSSIBLE TO DETECT LARGE-VESSEL OCCLUSIONS IN ACUTE ISCHEMIC STROKE USING CLINICAL SCREENING SCALES? European Stroke Journal. ISSN 2396-9873. 4. doi: 10.1177/2396987319845578.
  • Kristoffersen, Espen Saxhaug; REICHENBACH, ANTJE; Faiz, Kashif Waqar; Bergh, Elin; Baar, Anette & Altmann, Marianne [Vis alle 9 forfattere av denne artikkelen] (2019). Prehospital tidsbruk ved hjerneslag. Tid brukt på hentested.
  • Harper, Charlotte Elena; Faiz, Kashif Waqar; Aaseth, Kjersti; Vetvik, Kjersti & Kristoffersen, Espen Saxhaug (2019). Reinnleggelse i nevrologisk avdeling grunnet postpunksjonshodepine etter utredning av akutt hodepine.
  • Aaseth, Kjersti; Harper, Charlotte Elena; Vetvik, Kjersti; Faiz, Kashif Waqar & Kristoffersen, Espen Saxhaug (2019). Utredning av subaraknoidalblødning – fortsatt behov for spinalpunksjon?
  • Carlsen, Louise N; Høst, Christel; Dømgaard, Mikala; Kristoffersen, Espen Saxhaug & Jensen, Rigmor Højland (2019). Brief Intervention – treatment of medication overuse headache in primary and secondary care, a study protocol. Cephalalgia. ISSN 0333-1024. 39. doi: 10.1177/0333102419859835.
  • Snoer, A. H.; Lund, Nunu; Jensen, Rigmor Højland; Kristoffersen, Espen Saxhaug; Barloese, Mads & Hansen, Jakob Møller (2019). More precise phenotyping of cluster headache using prospective attack reports. Cephalalgia. ISSN 0333-1024. 39. doi: 10.1177/0333102419859835.
  • Carlsen, Louise N; Høst, Christel; Dømgaard, Mikala; Kristoffersen, Espen Saxhaug; Jensen, Rigmor Højland & Hansen, Jakob Møller (2019). Brief Intervention – treatment of medication overuse headache in primary and secondary care, a study protocol.
  • Snoer, A. H.; Lund, Nunu; Jensen, Rigmor Højland; Kristoffersen, Espen Saxhaug; Barloese, Mads & Hansen, Jakob Møller (2019). More precise phenotyping of cluster headache using prospective attack reports.
  • Kristoffersen, Espen Saxhaug & Møller Hansen, Jakob (2019). Headache? Go see your GP!
  • Kristoffersen, Espen Saxhaug & Møller Hansen, Jakob (2019). Management of the difficult headache patient in general practice.
  • Siddiqui, Tahreem Ghazal; Cheng, Socheat; Kristoffersen, Espen Saxhaug; Gossop, Michael; Grambaite, Ramune & Lundqvist, Christofer (2019). The association between central nervous system depressant medications and cognitive function in hospitalised older patients: a cross sectional study. .
  • Siddiqui, Tahreem Ghazal; Cheng, Socheat; Kristoffersen, Espen Saxhaug; Gossop, Michael; Grambaite, Ramune & Lundqvist, Christofer (2019). Prescribed Central Nervous System Depressants are associated with Cognitive side effects among older patients.
  • Siddiqui, Tahreem Ghazal; Cheng, Socheat; Gossop, Michael; Kristoffersen, Espen Saxhaug; Grambaite, Ramune & Lundqvist, Christofer (2019). Prescribed Central Nervous System Depressants are associated with reduced cognition among hospitalised older patients.
  • Cheng, Socheat; Siddiqui, Tahreem Ghazal; Gossop, Michael; Kristoffersen, Espen Saxhaug & Lundqvist, Christofer (2019). Disparities in quality of life between elderly patients with and without long-term use of opioids and benzodiazepines.
  • Cheng, Socheat; Siddiqui, Tahreem Ghazal; Gossop, Michael; Kristoffersen, Espen Saxhaug & Lundqvist, Christofer (2019). Characteristics of at-risk patients and a reliable screening tool for detecting medication dependence among elderly patients.
  • Cheng, Socheat; Siddiqui, Tahreem Ghazal; Gossop, Michael; Stavem, Knut; Kristoffersen, Espen Saxhaug & Lundqvist, Christofer (2019). Overuse of opioids and benzidiazepines among elderly patients: Characteristics of at-risk patients and disparities in quality of life .
  • Siddiqui, Tahreem Ghazal; Cheng, Socheat; Grambaite, Ramune; Michele, Gossop; Kristoffersen, Espen Saxhaug & Lundqvist, Christofer (2019). Long-term use of central nervous system depressant medications is associated with reduced cognitive function in hospitalised older patients: a cross sectional study.
  • Bjorvatn, Bjørn; Kristoffersen, Espen Saxhaug; Halvorsen, Peder Andreas; Fors, Egil Andreas; Nilsen, Stein & Rørtveit, Guri (2019). Ny infrastruktur for allmennmedisinsk forskning. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 139(1), s. 24–26. doi: 10.4045/tidsskr.18.0689.
  • Faiz, Kashif Waqar; Kristoffersen, Espen Saxhaug; Sundseth, Antje & Altmann, Marianne (2018). Legefrakk og håndhygiene. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 138(20). doi: 10.4045/tidsskr.18.0695.
  • Kristoffersen, Espen Saxhaug (2018). Seleksjon, triagering og vurdering – prehospital- og mottaksmedisin.
  • Kristoffersen, Espen Saxhaug; Stavem, Knut; LUNDQVIST, CHRISTOFER & Russell, Michael Bjørn (2018). The impact of chronic headache on workdays, unemployment and disutility in the general population.
  • Kristoffersen, Espen Saxhaug; REICHENBACH, ANTJE; Faiz, Kashif Waqar; Altmann, Marianne; Sundseth, Antje & Thommessen, Bente [Vis alle 7 forfattere av denne artikkelen] (2018). Is it possible to identify acute ischemic stroke patients with large-vessel occlusions using clinical screening scales?
  • Kristoffersen, Espen Saxhaug; Grande, Ragnhild Berling; Aaseth, Kjersti; Russell, Michael Bjørn & LUNDQVIST, CHRISTOFER (2018). Hodepinerelatert livskvalitet før og etter seponering av medikamenter ved medikamentoverforbrukshodepine – Akershus-undersøkelsen av kronisk hodepine.
  • Harper, Charlotte Elena; Kristoffersen, Espen Saxhaug; Vetvik, Kjersti & Faiz, Kashif Waqar (2018). Forekomst og klinisk presentasjon av cerebral venetrombose i en norsk populasjon.
  • Kristoffersen, Espen Saxhaug; REICHENBACH, ANTJE; Faiz, Kashif Waqar; Altmann, Marianne; Sundseth, Antje & Thommessen, Bente [Vis alle 7 forfattere av denne artikkelen] (2018). Kan pasienter med akutt storkarokklusjon identifiseres med kliniske skåringsverktøy?
  • Cheng, Socheat; Siddiqui, Tahreem Ghazal; Gossop, Michael; Kristoffersen, Espen Saxhaug & LUNDQVIST, CHRISTOFER (2018). Diagnostic accuracy and usability of the severity dependence scale in detecting medication misuse and dependence in elderly patients .
  • Cheng, Socheat; Siddiqui, Tahreem Ghazal; Gossop, Michael; Kristoffersen, Espen Saxhaug & LUNDQVIST, CHRISTOFER (2018). Socio-demographic and pharmacological profile of medication Misuse and dependence in elderly patients .
  • Bjorvatn, Bjørn; Straand, Jørund; Halvorsen, Peder Andreas; Wensaas, Knut-Arne; Bellika, Johan Gustav & Fors, Egil Andreas [Vis alle 10 forfattere av denne artikkelen] (2018). PraksisNett - et nettverk av fastlegepraksiser. En storsatsing på forskning i allmennpraksis. Utposten. ISSN 0800-5680. s. 40–43.
  • Faiz, Kashif Waqar & Kristoffersen, Espen Saxhaug (2018). Snehvit og de syv diagnosene. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 138(6). doi: 10.4045/tidsskr.17.0850.
  • Jarholm, Jonas Alexander; Faiz, Kashif Waqar; Nysted, Trond; Zarnovicky, Svetozar & Kristoffersen, Espen Saxhaug (2018). Orbital Pain, Ophthalmoplegia, and Oligoclonal Bands in the Cerebrospinal Fluid: A Case Report of Tolosa-Hunt Syndrome. Headache. ISSN 0017-8748. 58(5), s. 758–760. doi: 10.1111/head.13283.
  • Kristoffersen, Espen Saxhaug; Stavem, Knut; LUNDQVIST, CHRISTOFER & Russell, Michael Bjørn (2018). Reply to the letter by Min et al. Cephalalgia. ISSN 0333-1024. 38(10), s. 1701–1702. doi: 10.1177/0333102417747213.
  • Kristoffersen, Espen Saxhaug; Winsvold, Bendik K S & Faiz, Kashif Waqar (2017). The knowledge of residents in neurology about management of headache.
  • Kristoffersen, Espen Saxhaug; Winsvold, Bendik K S & Faiz, Kashif Waqar (2017). The knowledge of residents in neurology about management of headache.
  • Kristoffersen, Espen Saxhaug; LUNDQVIST, CHRISTOFER & Russell, Michael Bjørn (2017). Socioeconomic impact, disability, psychological distress and illness perception of primary chronic headache in the general population – the Akershus study of chronic headache.
  • Jarholm, Jonas Alexander; Kristoffersen, Espen Saxhaug; Wohlleben, Christine; Zarnovicky, Svetozar & Faiz, Kashif Waqar (2017). Mat på hjernen.
  • Kristoffersen, Espen Saxhaug; Winsvold, Bendik K S & Faiz, Kashif Waqar (2017). Leger i spesialisering i nevrologi sin erfaring og håndtering av hodepine i klinisk praksis.

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Publisert 12. apr. 2011 16:57 - Sist endret 9. mai 2022 15:41

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