Academic article

• Helgø, Maren; Refsnes, Thea Gurine Torvik; Thomassen, Øyvind et al. (2025). Effect of Air Exposure Time Under Room-Temperature Conditions on the Performance of Chemical Heat Blankets Intended for Use in Prehospital Accidental Hypothermia. (external link)
• Mydske, Sigurd; Helland, Ane Marthe; Borasio, Nicola et al. (2025). Reduction of Afterdrop by Using Active External Warming During Treatment of Accidental Hypothermia—A Randomized, Crossover Trial. (external link)
• Mydske, Sigurd; Helland, Ane Marthe; Borasio, Nicola et al. (2025). Effect of active external rewarming on esophageal temperature in simulated prehospital accidental hypothermia: a randomized crossover trial. (external link)
• Helland, Ane Marthe; Mydske, Sigurd; Assmus, Jørg et al. (2025). Minor Decrease of Core Temperature in Shivering Volunteers Over a 3-Hour Exposure to Cold, Wet, and Windy Conditions. (external link)
• Ugelvik, Kristina Stølen; Montán, Kristina Lennquist; Thomassen, Øyvind et al. (2025). A full response chain surge capacity test of a small rural hospital, prehospital resources and collaborating organisations. (external link)
• Mydske, Sigurd; Brattebø, Guttorm; Helland, Ane Marthe et al. (2025). Treatment of accidental hypothermia: Impact of insulation placement above or below an active external rewarming device on temperature and burn risk. (external link)
• Ugelvik, Kristina Stølen; Thomassen, Øyvind; Braut, Geir Sverre et al. (2025). A national study of in-hospital preparedness for Mass Casualty Incidents and disasters. (external link)
• Helland, Ane Marthe; Mydske, Sigurd; Assmus, Jörg et al. (2025). Experimental hypothermia by cold air: a randomized, double-blind, placebo-controlled crossover trial. (external link)
• Mydske, Sigurd; Brattebø, Guttorm; Østerås, Øyvind et al. (2024). Effect of a vapor barrier in combination with active external rewarming for cold-stressed patients in a prehospital setting: a randomized, crossover field study. (external link)
• Barsten, Tea Wick; Sunde, Emilie; Thomassen, Øyvind et al. (2024). Methods and equipment available for prehospital treatment of accidental hypothermia: a survey of Norwegian prehospital services. (external link)
• Hagen, Linn Therese; Brattebø, Guttorm; Dipl-Math, Jörg Assmus et al. (2024). Effect of wet clothing removal on skin temperature in subjects exposed to cold and wrapped in a vapor barrier: a human, randomized, crossover field study. (external link)
• Torland, Venke; Thomassen, Øyvind; Østerås, Øyvind (2024). Kitesurfing and snowkiting injuries in Norway: a retrospective study. (external link)
• Ugelvik, Kristina Stølen; Thomassen, Øyvind; Braut, Geir Sverre et al. (2023). Evaluation of prehospital preparedness for major incidents on a national level, with focus on mass casualty incidents. (external link)
• Wik, Lars; Brattebø, Guttorm; Østerås, Øyvind et al. (2022). Physiological effects of providing supplemental air for avalanche victims. A randomised trial. (external link)
• Thomassen, Øyvind; Skaiaa, Sven Christjar; Assmus, Jörg et al. (2017). Mountain rescue cardiopulmonary resuscitation: A comparison between manual and mechanical chest compressions during manikin cardio resuscitation. (external link)
• Skaiaa, Sven Christjar; Thomassen, Øyvind (2016). Skredulykker og behandling av skredtatte. (external link)
• Skaiaa, Sven Christjar; Brattebø, Guttorm; Assmus, Jörg et al. (2015). The impact of environmental factors in pre-hospital thermistor-based tympanic temperature measurement: a pilot field study. (external link)
• Thomassen, Øyvind; Mann, Clifford; Mbwana, Juma Salum et al. (2015). Emergency medicine in Zanzibar: the effect of system changes in the emergency department. (external link)
• Høyland, Sindre; Haugen, Arvid Steinar; Thomassen, Øyvind (2014). Perceptions of time spent on safety tasks in surgical operations: A focus group study. (external link)
• Haugen, Arvid Steinar; Høyland, Sindre; Thomassen, Øyvind et al. (2014). ‘It’s a state of mind’ – a qualitative study after two years´experience with the World Health Organization´s surgical safety checklist. (external link)
• Karlsen, Anders Mæhlum; Thomassen, Øyvind; Vikenes, Bjarne H et al. (2013). Equipment to prevent, diagnose, and treat hypothermia: a survey of Norwegian pre-hospital services. (external link)
• Thomassen, Øyvind (2012). Implementation of safety checklists in medicine: not as simple as it sounds. (external link)
• Thomassen, Øyvind; Espeland, Ansgar; Softeland, Eirik et al. (2011). Implementation of checklists in health care; learning from high-reliability organisations. (external link)
• Thomassen, Øyvind; Færevik, Hilde; Østerås, Øyvind et al. (2011). Comparison of three different prehospital wrapping methods for preventing hypothermia - a crossover study in humans. (external link)
• Thomassen, Øyvind; Brattebø, Guttorm; Søfteland, Eirik et al. (2010). The effect of a simple checklist on frequent pre-induction deficiencies. (external link)
• Thomassen, Øyvind; Brattebø, Guttorm; Heltne, Jon-Kenneth et al. (2010). Checklists in the operating room: Help or hurdle? A qualitative study on health workers' experiences. (external link)
• Thomassen, Øyvind; Skaiaa, Sven Christjar; Brattebø, Guttorm et al. (2009). Does the horizontal position increase risk of rescue death following suspension trauma?. (external link)

Academic lecture

• Færevik, Hilde; Brattebø, Guttorm; Storholmen, Tore Christian B et al. (2022). Human responses to active external heating in a novel prehospital hypothermia wrap system. (external link)

Academic literature review

• Mydske, Sigurd; Thomassen, Øyvind (2020). Is prehospital use of active external warming dangerous for patients with accidental hypothermia: a systematic review. (external link)
• Thomassen, Øyvind; Storesund, Anette; Softeland, Eirik et al. (2014). The effects of safety checklists in medicine: a systematic review. (external link)
• Marland, Susan; Ellerton, John; Andolfatto, Gary et al. (2013). Ketamine: Use in Anesthesia. (external link)

Errata

• Mydske, Sigurd; Thomassen, Øyvind (2020). Correction to: Is prehospital use of active external warming dangerous for patients with accidental hypothermia: a systematic review (Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine, (2020), 28, 1, (77), 10.1186/s13049-020-00773-2). (external link)

Doctoral dissertation

• Thomassen, Øyvind (2012). Implementation of safety checklists in medicine. Not as simple as it sounds. (external link)

Academic chapter/article/Conference paper

• Haugen, Arvid Steinar; Høyland, Sindre; Thomassen, Øyvind et al. (2012). A qualitative study of surgical personnel's experiences with the WHO Surgical Checklist two years after implementation. (external link)
• Høyland, Sindre; Haugen, Arvid Steinar; Thomassen, Øyvind (2012). The nature of operating room time in interdisciplinary surgical operations. (external link)

Report

• Sørgard, Lars; Daljord, Øystein; Thomassen, Øyvind (2007). Market definition with shock analysis. (external link)
• Sørgard, Lars; Daljord, Øystein; Thomassen, Øyvind (2007). Making sense of market delineation with the aggregate diversion ratio. (external link)

Article in business/trade/industry journal

• Sørgard, Lars; Daljord, Øystein; Thomassen, Øyvind (2007). The SSNIP test and market definition with the aggregate diversion ratio: A reply to Katz and Shapiro. (external link)

See a complete overview of publications in Cristin.