Knut-Arne Wensaas

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Knut-Arne Wensaas is a family medicine physician and a senior researcher in Bergen, Norway.

Education and training[edit | edit source]

Knut-Arne Wensaas earned a medical degree from the University of Bergen in 1993. He acquired clinical specialty in family medicine in 2001.[1]

He earned his Ph.D. in 2011 with his doctoral thesis entitled "Giardiasis in Bergen – Outbreak and clinical consequences".[1]

Career[edit | edit source]

Dr. Wensaas works as a general practitioner at Kalfaret legesenter in Bergen and holds a half-time post-doctoral position working on a research project entitled "Irritable bowel syndrome and chronic fatigue following infection with Giardia lamblia. Premorbid factors and long-term consequences".[1]

Notable studies[edit | edit source]

  • 2009, Severity of Giardia infection associated with post-infectious fatigue and abdominal symptoms two years after.[2] (Full text)
  • 2012, Irritable bowel syndrome and chronic fatigue 3 years after acute giardiasis: historic cohort study[3] (Abstract)
  • 2015, The relationship between irritable bowel syndrome, functional dyspepsia, chronic fatigue and overactive bladder syndrome: a controlled study 6 years after acute gastrointestinal infection[4] (Full text)
  • 2016, Excessive daytime sleepiness, sleep need and insomnia 3 years after Giardia infection: a cohort study[5] (Abstract)
  • 2018, The International Collaborative on Fatigue Following Infection (COFFI)[6] (Full text)
  • 2018, Prevalence of Irritable Bowel Syndrome and Chronic Fatigue 10 Years After Giardia Infection[7] (Abstract)
  • 2019, Quality of life and its association with irritable bowel syndrome and fatigue ten years after giardiasis[8] (Abstract)

Online presence[edit | edit source]

References[edit | edit source]

  1. ↑ 1.0 1.1 1.2 "Knut-Arne Wensaas | Uni Research". uni.no. Retrieved April 11, 2019.
  2. ↑ Mørch, Kristine; Hanevik, Kurt; Rortveit, Guri; Wensaas, Knut-Arne; Eide, Geir Egil; Hausken, Trygve; Langeland, Nina (December 15, 2009). "Severity of Giardia infection associated with post-infectious fatigue and abdominal symptoms two years after". BMC Infectious Diseases. 9: 206. doi:10.1186/1471-2334-9-206. ISSN 1471-2334. PMC 2808308. PMID 20003489.
  3. ↑ Wensaas, Knut-Arne; Langeland, Nina; Hanevik, Kurt; Mørch, Kristine; Eide, Geir Egil; Rortveit, Guri (February 2012). "Irritable bowel syndrome and chronic fatigue 3 years after acute giardiasis: historic cohort study". Gut. 61 (2): 214–219. doi:10.1136/gutjnl-2011-300220. ISSN 1468-3288. PMID 21911849.
  4. ↑ Persson, Robert; Wensaas, Knut-Arne; Hanevik, Kurt; Eide, Geir Egil; Langeland, Nina; Rortveit, Guri (June 10, 2015). "The relationship between irritable bowel syndrome, functional dyspepsia, chronic fatigue and overactive bladder syndrome: a controlled study 6 years after acute gastrointestinal infection". BMC Gastroenterology. 15. doi:10.1186/s12876-015-0296-0. ISSN 1471-230X. PMC 4460696. PMID 26058591.
  5. ↑ Hunskar, Gunnhild S.; Bjorvatn, Bjørn; Wensaas, Knut-Arne; Hanevik, Kurt; Eide, Geir Egil; Langeland, Nina; Rortveit, Guri (June 2016). "Excessive daytime sleepiness, sleep need and insomnia 3 years after Giardia infection: a cohort study". Sleep Health. 2 (2): 154–158. doi:10.1016/j.sleh.2016.03.005. ISSN 2352-7226. PMID 28923259.
  6. ↑ Katz, Ben Z; Collin, Simon M; Murphy, Gabrielle; Moss-Morris, Rona; Wyller, Vegard Bruun; Wensaas, Knut-Arne; Hautvast, Jeannine L.A.; Bleeker-Rovers, Chantal P; Vollmer-Conna, Uté; Buchwald, Dedra; Taylor, Renée; Little, Paul; Crawley, Esther; White, Peter D; Lloyd, Andrew (April 3, 2018). "The international collaborative on fatigue following infection (COFFI)". Fatigue: Biomedicine, Health & Behavior. 6 (2): 106–121. doi:10.1080/21641846.2018.1426086. ISSN 2164-1846. PMID 30666281.
  7. ↑ Litleskare, Sverre; Rortveit, Guri; Eide, Geir Egil; Hanevik, Kurt; Langeland, Nina; Wensaas, Knut-Arne (July 2018). "Prevalence of Irritable Bowel Syndrome and Chronic Fatigue 10 Years After Giardia Infection". Clinical Gastroenterology and Hepatology: The Official Clinical Practice Journal of the American Gastroenterological Association. 16 (7): 1064–1072.e4. doi:10.1016/j.cgh.2018.01.022. ISSN 1542-7714. PMID 29378314.
  8. ↑ Litleskare, Sverre; Rortveit, Guri; Eide, Geir Egil; Emberland, Knut Erik; Hanevik, Kurt; Langeland, Nina; Wensaas, Knut-Arne (February 14, 2019). "Quality of life and its association with irritable bowel syndrome and fatigue ten years after giardiasis". Neurogastroenterology and Motility: The Official Journal of the European Gastrointestinal Motility Society: e13559. doi:10.1111/nmo.13559. ISSN 1365-2982. PMID 30767352.

chronic fatigue (CF) - Persistent and abnormal fatigue is a symptom, not an illness. It may be caused by depression, multiple sclerosis, fibromyalgia, chronic fatigue syndrome or many other illnesses. The term "chronic fatigue" should never be confused with the disease chronic fatigue syndrome.

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