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Knut-Arne Wensaas

NORCE, Uni Research Helse - Allmennmedisin
  • E-mailKnut-arne.Wensaas@uib.no
  • Phone+47 55 58 61 33+47 911 04 774
  • Visitor Address
    Kalfarveien 31
  • Postal Address
    Postboks 7800
    5020 Bergen
Academic article
  • Barua, Ishita; Berset, Ingrid Prytz; Hære, Petter; Wensaas, Knut-Arne; Bretthauer, Michael. 2020. Nasjonalt screeningprogram for tarmkreft. Tidsskrift for Den norske legeforening.
  • Litleskare, Sverre; Rørtveit, Guri; Eide, Geir Egil; Emberland, Knut Erik; Hanevik, Kurt; Langeland, Nina; Wensaas, Knut-Arne. 2019. Quality of life and its association with irritable bowel syndrome and fatigue ten years after giardiasis. Neurogastroenterology and Motility.
  • Emberland, Knut Erik; Wensaas, Knut-Arne; Litleskare, Sverre; Rørtveit, Guri. 2019. Consultations for gastroenteritis in general practice and out-of-hours services in Norway 2006–15. Family Practice. 614-620.
  • Litleskare, Sverre; Rørtveit, Guri; Eide, Geir Egil; Hanevik, Kurt; Langeland, Nina; Wensaas, Knut-Arne. 2018. Prevalence of irritable bowel syndrome and chronic fatigue 10 years after giardia infection. Clinical Gastroenterology and Hepatology. 1064-1072.
  • Wensaas, Knut-Arne; Heron, Jon; Redmond, Niamh; Turnbull, Sophie; Christensen, Hannah; Thornton, Hannah; Peters, Tim J.; Blair, Peter S.; Hay, Alastair D. 2018. Post-consultation illness trajectories in children with acute cough and respiratory tract infection: Prospective cohort study. Family Practice. 676-683.
  • Bakken, Inger Johanne; Wensaas, Knut-Arne; Grøneng, Gry Marysol; Fretheim, Atle; Stoltenberg, Camilla; Klepp, Knut Inge; Håberg, Siri Eldevik; Øverland, Simon Nygaard. 2017. Russefeiring og eksamenstid – bruk av fastlege og legevakt. Tidsskrift for Den norske legeforening. 4 pages.
  • Bakken, Inger Johanne; Wensaas, Knut-Arne; Furu, Kari; Grøneng, Gry Marysol; Stoltenberg, Camilla; Øverland, Simon Nygaard; Håberg, Siri Eldevik. 2017. Legesøkning og legemiddeluttak etter innføring av nye fraværsregler. Tidsskrift for Den norske legeforening. 9 pages.
  • Wensaas, Knut-Arne; Hanevik, Kurt; Hausken, Trygve; Eide, Geir Egil; Langeland, Nina; Mørch, Kristine; Rørtveit, Guri. 2016. Postinfectious and sporadic functional gastrointestinal disorders have different prevalences and rates of overlap: results from a controlled cohort study 3 years after acute giardiasis. Neurogastroenterology and Motility. 1561-1569.
  • Hunskår, Gunnhild Sellevoll; Bjorvatn, Bjørn; Wensaas, Knut-Arne; Hanevik, Kurt; Eide, Geir Egil; Langeland, Nina; Rørtveit, Guri. 2016. Excessive daytime sleepiness, sleep need and insomnia 3 years after Giardia infection: A cohort study. Sleep Health. 154-158.
  • Persson, Robert; Wensaas, Knut-Arne; Hanevik, Kurt; Eide, Geir Egil; Langeland, Nina; Rørtveit, Guri. 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.
  • Litleskare, Sverre; Wensaas, Knut-Arne; Eide, Geir Egil; Hanevik, Kurt; Kahrs, Gudrun Elise; Langeland, Nina; Rørtveit, Guri. 2015. Perceived food intolerance and irritable bowel syndrome in a population 3 years after a giardiasis-outbreak: a historical cohort study. BMC Gastroenterology.
  • Hanevik, Kurt; Wensaas, Knut-Arne; Rørtveit, Guri; Eide, Geir Egil; Mørch, Kristine; Langeland, Nina. 2014. Irritable bowel syndrome and chronic fatigue 6 years after Giardia infection: A controlled prospective cohort study. Clinical Infectious Diseases. 1394-1400.
  • Mørch, Kristine; Hanevik, Kurt; Rivenes, Ann Christin; Bødtker, Jørn; Næss, Halvor; Stubhaug, Bjarte; Wensaas, Knut-Arne; Rørtveit, Guri; Eide, Geir Egil; Hausken, Trygve; Langeland, Nina. 2013. Chronic fatigue syndrome 5 years after giardiasis: differential diagnoses, characteristics and natural course. BMC Gastroenterology. 17 pages.
  • Hunskår, Gunnhild Sellevoll; Langeland, Nina; Wensaas, Knut-Arne; Hanevik, Kurt; Eide, Geir Egil; Mørch, Kristine; Rørtveit, Guri. 2012. The impact of atopic disease on the risk of post-infectious fatigue and irritable bowel syndrome 3 years after Giardia infection. A historic cohort study. Scandinavian Journal of Gastroenterology. 956-961.
  • Wensaas, Knut-Arne; Langeland, Nina; Hanevik, Kurt; Mørch, Kristine; Eide, Geir Egil; Rørtveit, Guri. 2012. Irritable bowel syndrome and chronic fatigue 3 years after acute giardiasis: historic cohort study. Gut. 214-219.
  • Simonsen, Kristian Anton; Hunskaar, Steinar; Wensaas, Knut-Arne; Rørtveit, Sverre; Cox, Rebecca Jane; Njølstad, Gro; Rørtveit, Guri. 2012. Influenza-like illness in general practice in Norway: clinical course and attitudes towards vaccination and preventive measures during the 2009 pandemic. Family Practice. 139-146.
  • Rørtveit, Sverre; Hunskaar, Steinar; Wensaas, Knut-Arne; Simonsen, Kristian Anton; Rørtveit, Guri. 2011. Influensapandemien hausten 2009 i ein vestlandskommune. Tidsskrift for Den norske legeforening. 675-679.
  • Wensaas, Knut-Arne; Langeland, Nina; Rørtveit, Guri. 2010. Post-infectious gastrointestinal symptoms after acute Giardiasis. A 1-year follow-up in general practice. Family Practice. 255-259.
  • Mørch, Kristine; Hanevik, Kurt; Rørtveit, Guri; Wensaas, Knut-Arne; Eide, Geir Egil; Hausken, Trygve; Langeland, Nina. 2009. Severity of Giardia infection associated with post-infectious fatigue and abdominal symptoms two years after. BMC Infectious Diseases.
  • Mørch, Kristine; Hanevik, Kurt; Rørtveit, Guri; Wensaas, Knut-Arne; Eide, Geir Egil; Hausken, Trygve; Langeland, Nina. 2009. Severity of Giardia infection associated with post-infectious fatigue and abdominal symptoms two years after. BMC Infectious Diseases.
  • Wensaas, Knut-Arne; Langeland, Nina; Rørtveit, Guri. 2009. Prevalence of recurring symptoms after infection with Giardia lamblia in a non-endemic area. Scandinavian Journal of Primary Health Care. 12-17.
  • Wensaas, Knut-Arne; Langeland, Nina; Rørtveit, Guri. 2009. Prevalence of recurring symptoms after infection with Giardia lamblia in a non-endemic area. Scandinavian Journal of Primary Health Care. 12-17.
  • Mørch, Kristine; Hanevik, Kurt; Rørtveit, Guri; Wensaas, Knut-Arne; Eide, Geir Egil; Hausken, Trygve; Langeland, Nina. 2009. High rate of fatigue and abdominal symptoms two years after an outbreak of giardiasis. Transactions of the Royal Society of Tropical Medicine and Hygiene. 530-532.
  • Mørch, Kristine; Hanevik, Kurt; Rørtveit, Guri; Wensaas, Knut-Arne; Langeland, Nina. 2009. High rate of fatigue and abdominal symptoms 2 years after an outbreak of giardiasis. Transactions of the Royal Society of Tropical Medicine and Hygiene. 530-532.
  • Wensaas, Knut-Arne; Langeland, Nina; Rørtveit, Guri. 2007. Avdekking av giardiasisutbruddet i Bergen 2004. Tidsskrift for Den norske legeforening. 2222-2225.
Report
  • Wensaas, Knut-Arne. 2017. Efficacy and Cost-Effectiveness of Alendronate for the Prevention of Fractures in Postmenopausal Women in Norway. .
  • Hagen, Gunhild; Wisløff, Torbjørn; Falch, Jan; Lofthus, Cathrine; Frihagen, Frede ; Wensaas, Knut-Arne; Granum, Lars; Nevjar, Janicke; Kristiansen, Ivar Sønbø; Klemp, Marianne. 2011. Efficacy and cost-effectiveness of alendronate for the prevention of fractures in postmenopausal women in Norway. 10/2011. 10/2011. .
Academic lecture
  • Wensaas, Knut-Arne; Redmond, N; Turnbull, S; Christensen, H; Thornton, H; Peters, T; Blair, P; Heron, J; Hay, Alastair D. 2017. Post consultation symptom duration in children with acute cough and respiratory tract infection: prospective cohort study.
  • Wensaas, Knut-Arne; Rørtveit, Guri; Litleskare, Sverre; Emberland, Knut Erik. 2017. Management of gastrointestinal infections in the Nordic countries.
  • Litleskare, Sverre; Rørtveit, Guri; Eide, Geir Egil; Emberland, Knut Erik; Hanevik, Kurt; Langeland, Nina; Wensaas, Knut-Arne. 2017. Irritable bowel syndrome, chronic fatigue and quality of life ten years after a Giardia lamblia epidemic in Norway 2004.
  • Emberland, Knut Erik; Wensaas, Knut-Arne; Litleskare, Sverre; Rørtveit, Guri. 2017. Gastroenteritis in primary care in Norway 2006-2015: encounters in general practice and out-of-hours services.
  • Emberland, Knut Erik; Wensaas, Knut-Arne; Litleskare, Sverre; Rørtveit, Guri. 2017. Gastroenteritis in Norway 2006-2015: consultations in primary care.
  • Wensaas, Knut-Arne. 2016. The impact of diverticular disease in the daily workup of the general practitioner.
  • Hay, A D; Wensaas, Knut-Arne; Redmond, N; Turnbull, S; Christensen, H; Thornton, H; Peters, T; Blair, P; Heron, J. 2016. Post consultation symptom trajectories in children presenting to primary care with acute cough and respiratory tract infection: latent class analysis of a prospective cohort study.
  • Wensaas, Knut-Arne. 2016. Management of gastroenterological symptoms and disease in primary care; state of the art 2016: Coeliac disease.
  • Litleskare, Sverre; Rørtveit, Guri; Eide, Geir Egil; Hanevik, Kurt; Langeland, Nina; Wensaas, Knut-Arne. 2016. Irritable bowel syndrome and chronic fatigue ten years after giardia infection: a controlled prospective cohort study.
  • Wensaas, Knut-Arne; Redmond, N; Turnbull, S; Christensen, H; Thornton, H; Peters, T; Blair, P; Heron, J; Hay, A D. 2016. Investigating symptom trajectories in children presenting to primary care with acute cough and respiratory tract infection: analysis of the ‘TARGET’ prospective cohort study.
  • Wensaas, Knut-Arne. 2016. Giardiasis in Bergen 2004 – The outbreak and its clinical consequences.
  • Wensaas, Knut-Arne. 2016. Chronic gastrointestinal and liver infections: Infections with Giardia lamblia and other gastrointestinal parasites.
Editorial
  • Wensaas, Knut-Arne. 2015. ESPCG - Still crazy after all these years. EuroDigest. 1 pages.
  • Rørtveit, Guri; Wensaas, Knut-Arne. 2004. En moderne epidemi. Tidsskrift for Den norske legeforening. 1 pages.
Feature article
  • Thorsen, Bente; Frydenberg, Karin; Wensaas, Knut-Arne; Christiansen, Line Cecilie; Olsen, Bodil Aasvang; Kehlet, Karsten; Fagerberg, Ellen Anita; Svendsen, Kjell-Olav; Borgen, Tove; Viste, Eirik. 2019. Fastlegens rolle i kreftomsorgen. Tidsskrift for Den norske legeforening. 5 pages.
  • Bjorvatn, Bjørn; Straand, Jørund; Halvorsen, Peder Andreas; Wensaas, Knut-Arne; Bellika, Johan Gustav; Fors, Egil Andreas; Gjelstad, Svein; Kristoffersen, Espen Saxhaug; Øxnevad-Gundersen, Berit; Rørtveit, Guri. 2018. PraksisNett - et nettverk av fastlegepraksiser. En storsatsing på forskning i allmennpraksis. Utposten. 40-43.
Doctoral dissertation
  • Litleskare, Sverre. 2019. Long-term complications following an outbreak of giardiasis.
  • Wensaas, Knut-Arne. 2011. Giardiasis in Bergen. Outbreak and clinical consequences.
Academic chapter/article/Conference paper
  • Wensaas, Knut-Arne. 2015. New Era for Clinical Research in Primary Care. 3 pages.
Abstract
  • Litleskare, Sverre; Rørtveit, Guri; Eide, Geir Egil; Hanevik, Kurt; Langeland, Nina; Wensaas, Knut-Arne. 2016. Irritable bowel syndrome ten years after acute Giardia lamblia infection: A controlled prospective cohort study. Neurogastroenterology and Motility. 59-59.
Poster
  • Fors, Egil Andreas; Wensaas, Knut-Arne; Eide, Hilde. 2017. Norwegian translation of the 2010/2011 Fibromyalgia Survey Criteria [Oversettelse av nye fibromyalgikriterier for diagnostikk (ACR2010) og forskning (FRCQ, 2011) til norsk] .
  • Fors, Egil Andreas; Wensaas, Knut-Arne; Eide, Hilde. 2016. Oversettelse av nye fibromyalgikriterier til norsk: ACR 2010 og forskningskriteriene (2011).
  • Litleskare, Sverre; Rørtveit, Guri; Eide, Geir Egil; Hanevik, Kurt; Langeland, Nina; Wensaas, Knut-Arne. 2016. Irritable bowel syndrome associated with giardia lamblia infection ten years after acute illness: a controlled prospective cohort study.
Academic literature review
  • Mujagic, Zlatan; Jonkers, Daisy M.A.E.; Hungin, A. Pali S.; De Wit, Niek J.; Wensaas, Knut-Arne; Palka, Margaret; Leeters, Vico; Kruimel, Joanna W.; Leue, Carsten; Masclee, Ad A.M.; Muris, Jean W.M. 2017. Use of Rome criteria for the diagnosis of irritable bowel syndrome in primary care: a survey among European countries. 651-656.
  • Boeckxstaens, Guy E.; Drug, Vasile Liviu; Dumitraşcu, Dan Lucian; Farmer, Adam Donald; Hammer, Johann; Hausken, Trygve; Niesler, Beate; Pohl, Daniel; Pojskic, Lejla; Polster, Annikka V.; Simrén, Magnus; Goebel-Stengel, Miriam; Van Oudenhove, Lukas; Vassallo, Mario; Wensaas, Knut-Arne; Aziz, Qasim; Houghton, Lesley Anne. 2016. Phenotyping of subjects for large scale studies on patients with IBS. 1134-1147.
  • Wensaas, Knut-Arne; Hungin, Amrit Pali. 2016. Diverticular Disease in the Primary Care Setting. S86-S88.
Article in business/trade/industry journal
  • Wensaas, Knut-Arne. 2016. Why the quest for early cancer diagnosis has gone too far. The Digest. 12.

More information in national current research information system (CRIStin)