Academic article

• Sigurd Mydske; Ane Marthe Helland; Nicola Borasio et al. (2026). Effect of active external rewarming on esophageal temperature in simulated prehospital accidental hypothermia: a randomized crossover trial. (external link)
• Frederik Eisendle; Giulia Roveri; Simon Rauch et al. (2025). Respiratory Gas Shifts to Delay Asphyxiation in Critical Avalanche Burial : A Randomized Clinical Trial. (external link)
• Maren Helgø; Thea Gurine Torvik Refsnes; Øyvind Thomassen 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)
• Sigurd Mydske; Ane Marthe Helland; Nicola Borasio et al. (2025). Reduction of Afterdrop by Using Active External Warming During Treatment of Accidental Hypothermia—A Randomized, Crossover Trial. (external link)
• Ane Marthe Helland; Sigurd Mydske; Jørg Assmus et al. (2025). Minor Decrease of Core Temperature in Shivering Volunteers Over a 3-Hour Exposure to Cold, Wet, and Windy Conditions. (external link)
• Kristina Stølen Ugelvik; Kristina Lennquist Montán; Øyvind Thomassen et al. (2025). A full response chain surge capacity test of a small rural hospital, prehospital resources and collaborating organisations. (external link)
• Sigurd Mydske; Guttorm Brattebø; Ane Marthe Helland 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)
• Kristina Stølen Ugelvik; Øyvind Thomassen; Geir Sverre Braut et al. (2025). A national study of in-hospital preparedness for Mass Casualty Incidents and disasters. (external link)
• Ane Marthe Helland; Sigurd Mydske; Jörg Assmus et al. (2025). Experimental hypothermia by cold air: a randomized, double-blind, placebo-controlled crossover trial. (external link)
• Sigurd Mydske; Guttorm Brattebø; Øyvind Østerås 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)
• Tea Wick Barsten; Emilie Sunde; Øyvind Thomassen et al. (2024). Methods and equipment available for prehospital treatment of accidental hypothermia: a survey of Norwegian prehospital services. (external link)
• Linn Therese Hagen; Guttorm Brattebø; Jörg Assmus Dipl-Math 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)
• Venke Torland; Øyvind Thomassen; Øyvind Østerås (2024). Kitesurfing and snowkiting injuries in Norway: a retrospective study. (external link)
• Kristina Stølen Ugelvik; Øyvind Thomassen; Geir Sverre Braut et al. (2023). Evaluation of prehospital preparedness for major incidents on a national level, with focus on mass casualty incidents. (external link)
• Lars Wik; Guttorm Brattebø; Øyvind Østerås et al. (2022). Physiological effects of providing supplemental air for avalanche victims. A randomised trial. (external link)
• Øyvind Thomassen; Sven Christjar Skaiaa; Jörg Assmus et al. (2017). Mountain rescue cardiopulmonary resuscitation: A comparison between manual and mechanical chest compressions during manikin cardio resuscitation. (external link)
• Sven Christjar Skaiaa; Øyvind Thomassen (2016). Skredulykker og behandling av skredtatte. (external link)
• Sven Christjar Skaiaa; Guttorm Brattebø; Jörg Assmus et al. (2015). The impact of environmental factors in pre-hospital thermistor-based tympanic temperature measurement: a pilot field study. (external link)
• Øyvind Thomassen; Clifford Mann; Juma Salum Mbwana et al. (2015). Emergency medicine in Zanzibar: the effect of system changes in the emergency department. (external link)
• Sindre Høyland; Arvid Steinar Haugen; Øyvind Thomassen (2014). Perceptions of time spent on safety tasks in surgical operations: A focus group study. (external link)
• Arvid Steinar Haugen; Sindre Høyland; Øyvind Thomassen 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)
• Anders Mæhlum Karlsen; Øyvind Thomassen; Bjarne H Vikenes et al. (2013). Equipment to prevent, diagnose, and treat hypothermia: a survey of Norwegian pre-hospital services. (external link)
• Øyvind Thomassen (2012). Implementation of safety checklists in medicine: not as simple as it sounds. (external link)
• Øyvind Thomassen; Ansgar Espeland; Eirik Softeland et al. (2011). Implementation of checklists in health care; learning from high-reliability organisations. (external link)
• Øyvind Thomassen; Hilde Færevik; Øyvind Østerås et al. (2011). Comparison of three different prehospital wrapping methods for preventing hypothermia - a crossover study in humans. (external link)
• Øyvind Thomassen; Guttorm Brattebø; Eirik Søfteland et al. (2010). The effect of a simple checklist on frequent pre-induction deficiencies. (external link)
• Øyvind Thomassen; Guttorm Brattebø; Jon-Kenneth Heltne et al. (2010). Checklists in the operating room: Help or hurdle? A qualitative study on health workers' experiences. (external link)
• Øyvind Thomassen; Sven Christjar Skaiaa; Guttorm Brattebø et al. (2009). Does the horizontal position increase risk of rescue death following suspension trauma?. (external link)

Academic book chapter

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

Academic literature review

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

Conference lecture

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

Doctoral thesis (PhD)

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

Journal corrigendum

• Sigurd Mydske; Øyvind Thomassen (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)

Professional article

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

Research report

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

See a complete overview of publications in NVA.