Marius Rehn

• Bekkevold, Marit; Solvik-Olsen, Tone; Heyerdahl, Fridtjof; Lang, Astri Maria; Hagemo, Jostein Skjalg & Rehn, Marius (2024). Reporting interhospital neonatal intensive care transport: international five-step Delphi-based template. BMJ Paediatrics Open. ISSN 2399-9772. 8(1). doi: 10.1136/bmjpo-2023-002374.
• Brede, Jostein Rødseth; Skjærseth, Eivinn Årdal & Rehn, Marius (2024). Prehospital anaesthesiologists experience with cardiopulmonary resuscitation-induced consciousness in Norway – A national cross-sectional survey. Resuscitation Plus. ISSN 2666-5204. 18. doi: 10.1016/j.resplu.2024.100591. Full text in Research Archive
• Rehn, Marius; Chew, Michelle; Kalliomäki, Maija-Liisa; Olkkola, Klaus T.; Sigurðsson, Martin Ingi & Møller, Morten Hylander (2023). Awake proning in patients with COVID-19-related hypoxemic acute respiratory failure: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. doi: 10.1111/aas.14367. Full text in Research Archive
• Lie, Sole Lindvåg; Hisdal, Jonny; Rehn, Marius & Høiseth, Lars Øivind (2023). Hemodynamic effects of supplemental oxygen versus air in simulated blood loss in healthy volunteers: a randomized, controlled, double-blind, crossover trial. Intensive Care Medicine Experimental. ISSN 2197-425X. 11(1). doi: 10.1186/s40635-023-00561-z. Full text in Research Archive
• Hansen, Peter Martin; Mikkelsen, Søren; Alstrøm, Henrik; Damm-Hejmdal, Anders; Rehn, Marius & Berlac, Peter Anthony (2023). The Field’s mass shooting: emergency medical services response. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 31(1). doi: 10.1186/s13049-023-01140-7. Full text in Research Archive
• Hansen, Peter Martin; Mikkelsen, Soren & Rehn, Marius (2023). Communication in Sudden-Onset Major Incidents: Patterns and Challenges - Scoping Review. Disaster Medicine and Public Health Preparedness. ISSN 1935-7893. 17(3). doi: 10.1017/dmp.2023.132. Full text in Research Archive
• Rehn, Marius; Heyerdahl, Fridtjof; Osbakk, Svein Are; Andresen, Åke Erling Lappen & Hagemo, Jostein Skjalg (2023). Challenges and Risks in Out-of-Hospital Transport of Patients During the Coronavirus Disease 2019 Pandemic. Air Medical Journal. ISSN 1067-991X. 42(3), p. 191–195. doi: 10.1016/j.amj.2023.02.002. Full text in Research Archive
• Chew, Michelle S.; Olkkola, Klaus T.; Kalliomäki, Maija-Liisa; Rehn, Marius; Sigurðsson, Martin Ingi & Møller, Morten Hylander (2023). ISTH guidelines for antithrombotic treatment in COVID-19: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. doi: 10.1111/aas.14259. Full text in Research Archive
• ter Avest, Avest; Carenzo, L.; Lendrum, R.A.; Christian, M.D.; Lyon, R.M. & Coniglio, C. [Show all 9 contributors for this article] (2022). Advanced interventions in the pre-hospital resuscitation of patients with non-compressible haemorrhage after penetrating injuries. Critical Care. ISSN 1364-8535. 26(1). doi: 10.1186/s13054-022-04052-7. Full text in Research Archive
• Rehn, Marius; Chew, Michelle S.; Olkkola, Klaus T.; Ingi Sigurðsson, Martin; Yli-Hankala, Arvi & Hylander Møller, Morten (2022). Surviving sepsis campaign: International guidelines for management of sepsis and septic shock in adults 2021 - endorsement by the Scandinavian society of anaesthesiology and intensive care medicine. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. 66(5), p. 634–635. doi: 10.1111/aas.14045. Full text in Research Archive
• Friesgaard, Kristian Dahl; Vist, Gunn Elisabeth; Hyldmo, Per Kristian; Raatiniemi, Lasse; Kurola, Jouni & Larsen, Robert [Show all 11 contributors for this article] (2022). Opioids for Treatment of Pre-hospital Acute Pain: A Systematic Review. Pain and Therapy. ISSN 2193-8237. 11, p. 17–36. doi: 10.1007/s40122-021-00346-w. Full text in Research Archive Show summary

  ntroduction Acute pain is a frequent symptom among patients in the pre-hospital setting, and opioids are the most widely used class of drugs for the relief of pain in these patients. However, the evidence base for opioid use in this setting appears to be weak. The aim of this systematic review was to explore the efficacy and safety of opioid analgesics in the pre-hospital setting and to assess potential alternative therapies. Methods The PubMed, EMBASE, Cochrane Library, Centre for Reviews and Dissemination, Scopus, and Epistemonikos databases were searched for studies investigating adult patients with acute pain prior to their arrival at hospital. Outcomes on efficacy and safety were assessed. Risk of bias for each included study was assessed according to the Cochrane approach, and confidence in the evidence was assessed using the GRADE method. Results A total of 3453 papers were screened, of which the full text of 125 was assessed. Twelve studies were ultimately included in this systematic review. Meta-analysis was not undertaken due to substantial clinical heterogeneity among the included studies. Several studies had high risk of bias resulting in low or very low quality of evidence for most of the outcomes. No pre-hospital studies compared opioids with placebo, and no studies assessed the risk of opioid administration for subgroups of frail patients. The competency level of the attending healthcare provider did not seem to affect the efficacy or safety of opioids in two observational studies of very low quality. Intranasal opioids had a similar effect and safety profile as intravenous opioids. Moderate quality evidence supported a similar efficacy and safety of synthetic opioid compared to morphine. Conclusions Available evidence for pre-hospital opioid administration to relieve acute pain is scarce and the overall quality of evidence is low. Intravenous administration of synthetic, fast-acting opioids may be as effective and safe as intravenous administration of morphine. More controlled studies are needed on alternative routes for opioid administration and pre-hospital pain management for potentially more frail patient subgroups.

• Samdal, Martin; Thorsen, Kjetil; Græsli, Ola; Sandberg, Mårten & Rehn, Marius (2021). Dispatch accuracy of physician-staffed emergency medical services in trauma care in south-east Norway: a retrospective observational study. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 29(1). doi: 10.1186/s13049-021-00982-3. Full text in Research Archive
• Hansen, Peter Martin; Jepsen, Søren Bruun; Mikkelsen, Søren & Rehn, Marius (2021). The Great Belt train accident: the emergency medical services response. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 29. doi: 10.1186/s13049-021-00954-7. Full text in Research Archive
• Brede, Jostein Rødseth; Skulberg, Arne Kristian; Rehn, Marius; Thorsen, Kjetil; Klepstad, Pål & Tylleskär, Ida [Show all 11 contributors for this article] (2021). REBOARREST, resuscitative endovascular balloon occlusion of the aorta in non-traumatic out-of-hospital cardiac arrest: a study protocol for a randomised, parallel group, clinical multicentre trial. Trials. ISSN 1745-6215. 22(1), p. 1–9. doi: 10.1186/s13063-021-05477-1. Full text in Research Archive Show summary

  Background: Survival after out-of-hospital cardiac arrest (OHCA) is poor and dependent on high-quality cardiopulmonary resuscitation. Resuscitative endovascular balloon occlusion of the aorta (REBOA) may be advantageous in non-traumatic OHCA due to the potential benefit of redistributing the cardiac output to organs proximal to the aortic occlusion. This theory is supported by data from both preclinical studies and human case reports. Methods: This multicentre trial will enrol 200 adult patients, who will be randomised in a 1:1 ratio to either a control group that receives advanced cardiovascular life support (ACLS) or an intervention group that receives ACLS and REBOA. The primary endpoint will be the proportion of patients who achieve return of spontaneous circulation with a duration of at least 20 min. The secondary objectives of this trial are to measure the proportion of patients surviving to 30 days with good neurological status, to describe the haemodynamic physiology of aortic occlusion during ACLS, and to document adverse events. Discussion: Results from this study will assess the efficacy and safety of REBOA as an adjunctive treatment for nontraumatic OHCA. This novel use of REBOA may contribute to improve treatment for this patient cohort. Trial registration: The trial is approved by the Regional Committee for Medical and Health Research Ethics in Norway (reference 152504) and is registered at ClinicalTrials.gov (reference NCT04596514) and as Universal Trial Number WHO: U1111-1253-0322.

• Crewdson, Kate; Heywoth, Ainsley; Rehn, Marius; Sadek, Samy & Lockey, David (2021). Apnoeic oxygenation for emergency anaesthesia of pre-hospital trauma patients. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 29, p. 1–7. doi: 10.1186/s13049-020-00817-7. Full text in Research Archive
• Mæhlen, Jens Otto; Mikalsen, Roger; Heimdal, Hans Julius; Rehn, Marius; Hagemo, Jostein Skjalg & Ottestad, William Arne (2021). Pre-hospital critical care management of severe hypoxemia in victims of Covid-19: a case series. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 29, p. 1–5. doi: 10.1186/s13049-021-00831-3. Full text in Research Archive
• Sandberg, Mårten; Hyldmo, Per Kristian; Kongstad, Poul; Friesgaard, Kristian D.; Raatiniemi, Lasse & Larsen, Robert [Show all 11 contributors for this article] (2020). Ketamine for the treatment of prehospital acute pain: a systematic review of benefit and harm . BMJ Open. ISSN 2044-6055. 10(11). doi: 10.1136/bmjopen-2020-038134. Full text in Research Archive
• Johnsen, Anne Siri; Samdal, Martin; Sollid, Stephen J. M. & Rehn, Marius (2020). Major incident management by helicopter emergency medical services in south-east Norway from 2000 to 2016: Retrospective cohort study . Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. 64(7), p. 1014–1020. doi: 10.1111/aas.13583. Full text in Research Archive
• Brede, Jostein Rødseth; Kramer-Johansen, Jo & Rehn, Marius (2020). A needs assessment of resuscitative endovascular balloon occlusion of the aorta (REBOA) in non-traumatic out-of-hospital cardiac arrest in Norway. BMC Emergency Medicine. ISSN 1471-227X. 20(28). doi: 10.1186/s12873-020-00324-z. Full text in Research Archive
• Tønsager, Kristin; Rehn, Marius; Krüger, Andreas; Røislien, Jo & Ringdal, Kjetil G. (2020). Assignment of pre-event ASA physical status classification by pre-hospital physicians: A prospective inter-rater reliability study. BMC Anesthesiology. ISSN 1471-2253. 20(1). doi: 10.1186/s12871-020-01083-x. Full text in Research Archive
• Raatiniemi, Lasse; Magnússon, Vidar; Hyldmo, Per Kristian; Friesgaard, Kristian D.; Kongstad, Poul & Kurola, Jouni [Show all 11 contributors for this article] (2020). Femoral nerve blocks for the treatment of acute pre-hospital pain: A systematic review with meta-analysis. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. 64(8), p. 1038–1047. doi: 10.1111/aas.13600. Full text in Research Archive
• Tønsager, Kristin; Krüger, Andreas; Ringdal, Kjetil G. & Rehn, Marius (2020). Data quality of Glasgow Coma Scale and Systolic Blood Pressure in scientific studies involving physician-staffed emergency medical services: Systematic review. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. 64(7), p. 888–909. doi: 10.1111/aas.13596. Full text in Research Archive Show summary

  BACKGROUND: Emergency physicians on-scene provide highly specialized care to severely sick or injured patients. High-quality research relies on the quality of data, but no commonly accepted definition of EMS data quality exits. Glasgow Coma Score (GCS) and Systolic Blood Pressure (SBP) are core physiological variables, but little is known about the quality of these data when reported in p-EMS research. This systematic review aims to describe the quality of pre-hospital reporting of GCS and SBP data in studies where emergency physicians are present on-scene. METHODS: A systematic literature search was performed using CINAHL, Cochrane, Embase, Medline, Norart, Scopus, SweMed + and Web of Science, in accordance with the PRISMA guidelines. Reported data on accuracy of reporting, completeness and capture were extracted to describe the quality of documentation of GCS and SBP. External and internal validity assessment was performed by extracting a set of predefined variables. RESULTS: We included 137 articles describing data collection for GCS, SBP or both. Most studies (81%) were conducted in Europe and 59% of studies reported trauma cases. Reporting of GCS and SBP data were not uniform and may be improved to enable comparisons. Of the predefined external and internal validity data items, 26%-45% of data were possible to extract from the included papers. CONCLUSIONS: Reporting of GCS and SBP is variable in scientific papers. We recommend standardized reporting to enable comparisons of p-EMS.

• Tønsager, Kristin; Krüger, Andreas; Ringdal, Kjetil G. & Rehn, Marius (2020). Template for documenting and reporting data in physician-staffed pre-hospital services: a consensus-based update. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 28. doi: 10.1186/s13049-020-0716-1. Full text in Research Archive
• Samdal, Martin; Eiding, Helge; Markengbakken, Lars; Røislien, Jo; Rehn, Marius & Sandberg, Mårten (2019). Time Course of Hoist Operations by the Search and Rescue Helicopter Service in Southeast Norway. Wilderness & environmental medicine (Print). ISSN 1080-6032. 30(4), p. 351–361. doi: 10.1016/j.wem.2019.06.004. Full text in Research Archive
• Hagemo, Jostein Skjalg; Bredmose, Per Poelhøi; Stave, Halvard; Rehn, Marius & Buskop, Christian (2019). Response to: Best practice advice on pre-hospital emergency anaesthesia & advanced airway management. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 27(1). doi: 10.1186/s13049-019-0613-7.
• Reid, Bjørn Ole; Haugland, Helge Nystad; Rehn, Marius; Uleberg, Oddvar & Krüger, Andreas (2019). Search and Rescue and Remote Medical Evacuation in a Norwegian Setting: Comparison of Two Systems. Wilderness & environmental medicine (Print). ISSN 1080-6032. 30(2), p. 155–162. doi: 10.1016/j.wem.2019.02.003.
• Tønsager, Kristin; Rehn, Marius; Ringdal, Kjetil G.; Lossius, Hans Morten; Virkkunen, Ilkka & Østerås, Øyvind [Show all 8 contributors for this article] (2019). Collecting core data in physician-staffed pre-hospital helicopter emergency medical services using a consensus-based template: international multicentre feasibility study in Finland and Norway. BMC Health Services Research. ISSN 1472-6963. 19. doi: 10.1186/s12913-019-3976-6. Full text in Research Archive
• Rehn, Marius; Weaver, Anne; Brohi, Karim; Eshelby, Sarah; Green, Laura E. & Røislien, Jo [Show all 7 contributors for this article] (2018). Effect of Prehospital Red Blood Cell Transfusion on Mortality and Time of Death in Civilian Trauma Patients. Shock. ISSN 1073-2322. 51(3), p. 284–288. doi: 10.1097/SHK.0000000000001166.
• Crewdson, Kate; Rehn, Marius; Brohi, Karim & Lockey, David (2018). Pre-hospital emergency anaesthesia in awake hypotensive trauma patients: beneficial or detrimental? Acta Anaesthesiologica Scandinavica. ISSN 0001-5172.
• Crewdson, Kate; Rehn, Marius & Lockey, David (2018). Airway management in pre-hospital critical care: A review of the evidence for a 'top five' research priority. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 26:89, p. 1–6. doi: 10.1186/s13049-018-0556-4.
• Rehn, Marius; Davies, Gareth; Foster, Elizabeth & Lockey, David (2018). Prehospital Management of Pediatric Hanging. Pediatric emergency care. ISSN 0749-5161. 34(4), p. 263–266. doi: 10.1097/PEC.0000000000000860.
• Haugland, Helge Nystad; Uleberg, Oddvar; Klepstad, Pål; Krüger, Andreas & Rehn, Marius (2018). Quality measurement in physician-staffed emergency medical services: a systematic literature review. International Journal for Quality in Health Care. ISSN 1353-4505. 31(1), p. 2–10. doi: 10.1093/intqhc/mzy106. Full text in Research Archive
• Reid, Bjørn Ole; Rehn, Marius; Uleberg, Oddvar; Næss-Pleym, Lars E. & Krüger, Andreas (2018). Inter-disciplinary cooperation in a physician-staffed emergency medical system. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. 62(7), p. 1007–1013. doi: 10.1111/aas.13112.
• Samdal, Martin; Haugland, Helge Nystad; Fjeldet, Cato; Rehn, Marius & Sandberg, Mårten (2018). Static rope evacuation by helicopter emergency medical services in rescue operations in Southeast Norway. Wilderness & environmental medicine (Print). ISSN 1080-6032. 29, p. 315–324. doi: 10.1016/j.wem.2018.03.010. Full text in Research Archive
• Hardy, Sophie; Fattah, Sabina; Wisborg, Torben; Raatiniemi, Lasse; Staff, Trine & Rehn, Marius (2018). Systematic reporting to improve the emergency medical response to major incidents: A pilot study. BMC Emergency Medicine. ISSN 1471-227X. 18:4, p. 1–7. doi: 10.1186/s12873-018-0153-x. Full text in Research Archive
• Reid, Bjørn Ole; Rehn, Marius; Uleberg, Oddvar & Krüger, Andreas Jørstad (2018). Physician-provided prehospital critical care, effect on patient physiology dynamics and on-scene time. European journal of emergency medicine. ISSN 0969-9546. 25(2), p. 114–119. doi: 10.1097/MEJ.0000000000000432. Show summary

  Introduction Improved physiologic status can be seen as a surrogate measure of improved outcome and a field-friendly prognostic model such as the Mainz Emergency Evaluation Score (MEES) could quantify the effect on physiological response. We aim to examine the dynamic physiological profile as measured by this score on patients managed by physician-manned helicopter emergency medical services and how this profile was related to on-scene time expenditure and critical care interventions. Materials and methods Data including patient characteristics, physiological data, and description of diagnostic and therapeutic interventions were prospectively collected over two 14-day periods, summer and winter, at six participating Norwegian bases. The MEES score was utilized to examine the difference between a score measured at first patient contact (MEES 1) and end-of-care (MEES 2), (MEES 2–MEES 1=ΔMEES). Results A total of 240 primary missions with patient-onscene form the basis of the study. In total, 43% were considered severely ill or injured, of whom 59% were medical patients. Twenty-nine percent were severely deranged physiologically. The most common advanced procedure performed was advanced airway management (15%), followed by defibrillation (8.8%). Using ΔMEES as an indicator, 1% deteriorated under care, whereas 66% remained unchanged and 33% showed an improvement in their physiological status. With increasing on-scene time, fewer patients deteriorated and a greater proportion of patients improved. Conclusion Restoring deranged physiology remains a mantra for all critical care practitioners. We have shown that this is also possible in the prehospital context, even when prolonging on-scene time, and after initiating advanced procedures.

• Rehn, Marius; Davies, Gareth; Smith, Paul & Lockey, David (2017). Emergency versus standard response: time efficacy of London's Air Ambulance rapid response vehicle. Emergency Medicine Journal. ISSN 1472-0205. 34(12), p. 806–809. doi: 10.1136/emermed-2017-206663.
• Rehn, Marius; Weaver, A.E.; Eshelby, Sarah; Røislien, Jo & Lockey, David (2017). Pre-hospital transfusion of red blood cells in civilian trauma patients. Transfusion Medicine. ISSN 0958-7578. 28(4), p. 277–283. doi: 10.1111/tme.12483.
• Sollid, Stephen J. M. & Rehn, Marius (2017). The role of the anaesthesiologist in air ambulance medicine. Current Opinion in Anaesthesiology. ISSN 0952-7907. 30(4), p. 513–517. doi: 10.1097/ACO.0000000000000480.
• Johnsen, Anne Siri; Sollid, Stephen J. M.; Vigerust, Trond; Jystad, Morten & Rehn, Marius (2017). Helicopter emergency medical services in major incident management: A national Norwegian cross-sectional survey. PLOS ONE. ISSN 1932-6203. 12:e0171436(2), p. 1–12. doi: 10.1371/journal.pone.0171436.
• Crewdson, K.; Lockey, David; Røislien, Jo; Lossius, Hans Morten & Rehn, Marius (2017). The success of pre-hospital tracheal intubation by different pre-hospital providers: a systematic literature review and meta-analysis. Critical Care. ISSN 1364-8535. 21(31). doi: 10.1186/s13054-017-1603-7. Full text in Research Archive
• Haugland, Helge Nystad; Rehn, Marius; Klepstad, Pål & Krüger, Andreas Jørstad (2017). Developing quality indicators for physician-staffed emergency medical services: a consensus process. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 25(14), p. 1–8. doi: 10.1186/s13049-017-0362-4. Full text in Research Archive
• Fattah, Sabina; Agledahl, Kari Milch; Rehn, Marius & Wisborg, Torben (2016). Experience With a Novel, Global, Open-Access Template for Major Incidents: Qualitative Feasibility Study. Disaster Medicine and Public Health Preparedness. ISSN 1935-7893. p. 1–4. doi: 10.1017/dmp.2016.156.
• Turner, Conor DA; Lockey, David & Rehn, Marius (2016). Pre-hospital management of mass casualty civilian shootings: A systematic literature review. Critical Care. ISSN 1364-8535. 20(1). doi: 10.1186/s13054-016-1543-7.
• Rehn, Marius; Davies, Gareth; Smith, Paul & Lockey, David (2016). Structure of Rapid Response Car Operations in an Urban Trauma Service. Air Medical Journal. ISSN 1067-991X. 35(3), p. 143–147. doi: 10.1016/j.amj.2015.12.015.
• Fattah, Sabina; Johnsen, Anne Siri; Sollid, Stephen J. M.; Wisborg, Torben; Rehn, Marius & Sóti, Ákos [Show all 22 contributors for this article] (2016). Reporting Helicopter Emergency Medical Services in Major Incidents: A Delphi Study. Air Medical Journal. ISSN 1067-991X. 35(6), p. 348–351. doi: 10.1016/j.amj.2016.08.003. Full text in Research Archive
• Rehn, Marius; Hyldmo, Per Kristian; Magnússon, Vidar; Kurola, Jouni; Kongstad, Poul & Rognås, Leif Kåre [Show all 8 contributors for this article] (2016). Scandinavian SSAI clinical practice guideline on pre-hospital airway management. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. 60(7), p. 852–864. doi: 10.1111/aas.12746. Show summary

  Background: The Scandinavian society of anaesthesiology and inten- sive care medicine task force on pre-hospital airway management was asked to formulate recommendations following standards for trustworthy clinical practice guidelines. Methods: The literature was systematically reviewed and the grading of recommendations assessment, development and evaluation (GRADE) system was applied to move from evidence to recommendations. Results: We recommend that all emergency medical service (EMS) pro- viders consider to: apply basic airway manoeuvres and airway adjuncts (good practice recommendation); turn unconscious non-trauma patients into the recovery position when advanced airway management is unavail- able (good practice recommendation); turn unconscious trauma patients to the lateral trauma position while maintaining spinal alignment when advanced airway management is unavailable [strong recommendation, low quality of evidence (QoE)]. We suggest that intermediately trained provi- ders use a supraglottic airway device (SAD) or basic airway manoeuvres on patients in cardiac arrest (weak recommendation, low QoE). We recom- mend that advanced trained providers consider using an SAD in selected indications or as a rescue device after failed endotracheal intubation (ETI) (good practice recommendation). We recommend that ETI should only be performed by advanced trained providers (strong recommendation, low QoE). We suggest that videolaryngoscopy is considered for ETI when direct laryngoscopy fails or is expected to be difficult (weak recommenda- tion, low QoE). We suggest that advanced trained providers apply cricothy- roidotomy in ‘cannot intubate, cannot ventilate’ situations (weak recommendation, low QoE). Conclusion: This guideline for pre-hospital airway management includes a combination of techniques applied in a stepwise fashion appropriate to patient clinical status and provider training.

• Johnsen, Anne Siri; Fattah, Sabina; Sollid, Stephen J. M. & Rehn, Marius (2016). Utilisation of helicopter emergency medical services in the early medical response to major incidents: A systematic literature review. BMJ Open. ISSN 2044-6055. 6(2). doi: 10.1136/bmjopen-2015-010307. Full text in Research Archive
• Rehn, Marius (2015). A practical approach to resuscitative thoracotomy. Surgery (United Kingdom). ISSN 0263-9319. doi: 10.1016/j.mpsur.2015.07.010.
• Thompson, Julian; Rehn, Marius; Lossius, Hans Morten & Lockey, David (2014). Risks to emergency medical responders at terrorist incidents: A narrative review of the medical literature. Critical Care. ISSN 1364-8535. 18(5:521). doi: 10.1186/s13054-014-0521-1.
• Fattah, Sabina; Johnsen, Anne Siri; Andersen, Jan Einar; Vigerust, Trond; Olsen, Terje & Rehn, Marius (2014). Rapid extrication of entrapped victims in motor vehicle wreckage using a Norwegian chain method - cross-sectional and feasibility study. BMC Emergency Medicine. ISSN 1471-227X. 14(1). doi: 10.1186/1471-227X-14-14. Full text in Research Archive
• Fattah, Sabina; Rehn, Marius; Lockey, David; Thompson, Julian; Lossius, Hans Morten & Wisborg, Torben (2014). A consensus based template for reporting of pre-hospital major incident medical management. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 22:5. doi: 10.1186/1757-7241-22-5. Full text in Research Archive
• Kristiansen, Thomas; Lossius, Hans Morten; Rehn, Marius; Kristensen, Petter; Gravseth, Hans Magne Ulrik & Røislien, Jo [Show all 7 contributors for this article] (2014). Epidemiology of trauma: A population-based study of geographical risk factors for injury deaths in the working-age population of Norway. Injury. ISSN 0020-1383. 45(1), p. 23–30. doi: 10.1016/j.injury.2013.07.007. Show summary

  Introduction Trauma is a major global cause of morbidity and mortality. Population-based studies identifying high-risk populations and regions may facilitate primary prevention and the development of optimal trauma systems. This study describes the epidemiology of adult trauma deaths in Norway and identifies high-risk areas by assessing different geographical measures of rurality. Methods All trauma-related deaths in Norway from 1998 to 2007 among individuals aged 16–66 years were identified by accessing national registries. Mortality data were analysed by linkage to population and geographical data at municipal, county and national levels. Three measures of rurality (centrality, population density and settlement density) were compared based on their association with trauma mortality rates. Results The study included 8466 deaths, of which 78% were males. The national annual trauma mortality rate was 28.7 per 100,000. Population density was the best predictor of high-risk areas, and there was a consistent inverse relationship between mortality rates and population density. The most rural areas had 52% higher trauma mortality rates compared to the most urban areas. This difference was largely due to deaths following transport-related injury. Seventy-eight per cent of all deaths occurred in the prehospital phase. Rural areas and death following self-harm had higher proportion of prehospital deaths. Conclusion Rural areas, as defined by population density, are at a higher risk of deaths following traumatic injuries and have higher proportions of prehospital deaths and deaths following transport-related injuries. The heterogeneous characteristics of trauma populations with respect to geography and mode of injury should be recognised in the planning of preventive strategies and in the organisation of trauma care.

• Ringdal, Kjetil G.; Skaga, Nils Oddvar; Hestnes, Morten; Steen, Petter Andreas; Røislien, Jo & Rehn, Marius [Show all 9 contributors for this article] (2013). Abbreviated Injury Scale: Not a reliable basis for summation of injury severity in trauma facilities? Injury. ISSN 0020-1383. 44(5), p. 691–699. doi: 10.1016/j.injury.2012.06.032.
• Johnsen, Anne Siri; Fattah, Sabina; Sollid, Stephen & Rehn, Marius (2013). Impact of helicopter emergency medical services in major incidents: systematic literature review. BMJ Open. ISSN 2044-6055. 3. doi: 10.1136/bmjopen-2013-003335. Full text in Research Archive
• Fattah, Sabina; Rehn, Marius; Reierth, Eirik & Wisborg, Torben (2013). Systematic literature review of templates for reporting prehospital major incident medical management. BMJ Open. ISSN 2044-6055. 3(8), p. 1–8. doi: 10.1136/bmjopen-2013-002658. Full text in Research Archive
• Kristiansen, Thomas; Søreide, Kjetil; Ringdal, Kjetil G.; Rehn, Marius; Krüger, Andreas J. & Reite, Andreas [Show all 9 contributors for this article] (2012). Trauma systems and early management of severe injuries in Scandinavia: review and current status. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 04(17). doi: 10.1186/1757-7241-17-S3-O29.
• Fattah, Sabina; Krüger, Andreas J.; Andersen, Jan Einar; vigerust, trond & Rehn, Marius (2012). Major incident preparedness and on-site work among Norwegian rescue personnel - a cross-sectional study. International Journal of Emergency Medicine. ISSN 1865-1372. 5(1). doi: 10.1186/1865-1380-5-40. Full text in Research Archive
• Rehn, Marius; Lossius, Hans Morten; Tjosevik, Kjell E; Vetrhus, Morten; Østebø, Olav & Eken, Torsten (2012). Efficacy of a two-tiered trauma team activation protocol in a Norwegian trauma centre. British Journal of Surgery. ISSN 0007-1323. 99(2), p. 199–208. doi: 10.1002/bjs.7794.
• Sollid, Stephen; Rimstad, Rune; Rehn, Marius; Nakstad, Anders Rostrup; Tomlinson, Ann-Elin & Strand, Terje [Show all 9 contributors for this article] (2012). Oslo government district bombing and Utøya island shooting July 22, 2011 : the immediate prehospital emergency medical service response. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 20. doi: 10.1186/1757-7241-20-3.
• Fattah, Sabina; Rehn, Marius; Reierth, eirik & Wisborg, Torben (2012). Templates for reporting pre-hospital major incident medical management: systematic literature review. BMJ Open. ISSN 2044-6055. 2(3). doi: 10.1136/bmjopen-2012-001082. Full text in Research Archive Show summary

  Introduction In 2010, a total of 385 natural disasters killed more than 297 000 people worldwide and affected over 217 million others. More standardised reporting of major incident management have been advocated in the previous years. Prevention, mitigation, preparedness and major incident response may be improved through collection and analysis of high-quality standardised data on medical management of major incidents. Standardised data may elevate the level of scientific evidence within disaster medicine research. Methods and analysis A systematic literature review will be conducted to identify templates for reporting pre-hospital major incident medical management. The first set of entry terms aims to describe major incidents published during the last 20 years. The second set aims to focus the number of search results from the first set to those publications that describe templates based on data collections from these major incidents. Predefined free search phases will be combined with the first two sets.

• Kristiansen, Thomas; Rehn, Marius; Gravseth, Hans Magne ; Lossius, Hans Morten & Kristensen, Petter (2012). Paediatric trauma mortality in Norway: population-based study of injury characteristics and urban-rural differences. Injury. ISSN 0020-1383. 43, p. 1865–1872. doi: 10.1016/j.injury.2011.08.011. Show summary

  Introduction: Paediatric injury is a major global public health challenge. Epidemiological research is required for effective primary injury prevention and to develop trauma systems for optimal management of childhood injuries. This study aimed to describe the characteristics and geographical distribution of paediatric trauma deaths and to assess the relationship between rural locations and mortality rates. Materials and methods: By accessing national registries, all trauma related deaths of persons aged 0–15 years in Norway from 1998 to 2007 were included. Paediatric trauma mortality rates and injury characteristic were analysed in relation to three different measures of municipal rurality: centrality, population density and settlement density. Results: There were 462 trauma related deaths during the study period and the national annual paediatric mortality rate was 4.81/100 000. Rural areas had higher mortality rates, and this difference was best predicted by municipal centrality. Rural trauma was characterised by traffic accidents and deaths that occurred prior to reaching hospital. The rural and northernmost county, Finnmark, had a mortality rate three times the national average. Conclusion: Mortality rates after childhood injury are high in rural areas. Substantiated measures of rurality are required for optimal allocation of primary and secondary preventive measures.

• Kristensen, Petter; Kristiansen, Thomas; Rehn, Marius; Gravseth, Hans Magne Ulrik & Bjerkedal, Tor (2012). Social inequalities in road traffic deaths at age 16-20 years among all 611 654 Norwegians born between 1967 and 1976: a multilevel analysis. Injury Prevention. ISSN 1353-8047. 18(1), p. 3–9. doi: 10.1136/ip.2011.031682. Show summary

  Background: Road traffic injury is a major cause of death among youths. Aims: To estimate mortality differences in family socioeconomic position (SEP) and municipal disadvantage level. Methods: Data on all Norwegians born in 1967–76, gathered from national registries, were linked by a unique national identification number. The 611 654 participants were followed-up for 5 years from age 16 years. Parental education level, father's income level, and proportion of high-income earners in the municipality served as SEP indicators. Associations between SEP and road traffic deaths were analysed by multilevel Poisson regression. Results: Road traffic deaths (n=676, rate 22.2 per 100 000 person-years) constituted a major cause of death, of which 91.9% were motor vehicle occupants. SEP distributions differed according to gender and type of motor vehicle crash (collision, non-collision). There was an inverse relationship between municipal proportions of high-income earners and mortality (population attributable fraction (PAF) 0.43, 95% CI 0.30 to 0.53) in all categories of gender-specific crash types. Family SEP gradients were not found except for male non-collision deaths, where increasing mortality was found in association with decreasing parental education level (PAF 0.94, 95% CI 0.59 to 0.99) and increasing paternal income (PAF 0.25, 95% CI 0.06 to 0.40). Conclusion: The different SEP patterns for road traffic deaths across gender and motor vehicle crash type illustrate that heterogeneity of social inequalities in health can be found even within narrow age bands and for similar causes of death.

• Lossius, Hans Morten; Sollid, Stephen; Rehn, Marius & Lockey, David (2011). Revisiting the value of pre-hospital tracheal intubation: an all time systematic literature review extracting the Utstein airway core variables. Critical Care. ISSN 1364-8535. 15(1). doi: 10.1186/cc9973.
• Rehn, Marius; Perel, Pablo; Blackhall, Karen & Lossius, Hans Morten (2011). Prognostic models for the early care of trauma patients: a systematic review. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 19. doi: 10.1186/1757-7241-19-17.
• Kristiansen, Thomas; Søreide, Kjetil; Ringdal, Kjetil G.; Rehn, Marius; Krüger, Andreas J. & Reite, Andreas [Show all 9 contributors for this article] (2010). Trauma systems and early management of severe injuries in Scandinavia: Review of the current state. Injury. ISSN 0020-1383. 41(5), p. 444–452. doi: 10.1016/j.injury.2009.05.027.
• Rehn, Marius; Eken, Torsten; Krüger, Andreas J.; Steen, Petter Andreas; Skaga, Nils Oddvar & Lossius, Hans Morten (2009). Precision of field triage in patients brought to a trauma centre after introducing trauma team activation guidelines. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 17. doi: 10.1186/1757-7241-17-1.

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• Brede, Jostein Rødseth & Rehn, Marius (2023). The end of balloons? Our take on the UK-REBOA trial. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. doi: 10.1186/s13049-023-01142-5. Full text in Research Archive
• Hansen, Peter Martin; Nielsen, Martine Siw; Rehn, Marius; Lassen, Annmarie Touborg; Mikkelsen, Søren & Perner, Anders [Show all 7 contributors for this article] (2023). Ambulance and helicopter response time. Association with patient outcome and illness severity: Protocol of a systematic literature review and meta-analysis. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. doi: 10.1111/aas.14339.
• Simensen, Randi; Fjose, Lars Olav; Rehn, Marius; Hagemo, Jostein Skjalg; Thorsen, Kjetil & Heyerdahl, Fridtjof (2023). Comparison of three regimens with inhalational methoxyflurane versus intranasal fentanyl versus intravenous morphine in pre-hospital acute pain management: study protocol for a randomized controlled trial (PreMeFen). Trials. ISSN 1745-6215. 24(1). doi: 10.1186/s13063-023-07590-9. Show summary

  Background Pre-hospital pain management has traditionally been performed with intravenous (IV) morphine, but oligoanalgesia remain a recognized problem. Pain reduction is essential for patient satisfaction and is regarded as a measure of successful treatment. We aim to establish whether non-invasive methods such as inhalation of methoxyflurane is non-inferior to intranasal fentanyl or non-inferior to the well-known IV morphine in the pre-hospital treatment of acute pain. Method/design The PreMeFen study is a phase three, three-armed, randomized, controlled, non-inferiority trial to compare three regimens of analgesics: inhalation of methoxyflurane and intranasal (IN) fentanyl versus IV morphine. It is an open-label trial with a 1:1:1 randomization to the three treatment groups. The primary endpoint is the change in pain numeric rating scale (NRS) (0–10) from baseline to 10 min after start of investigational medicinal product administration (IMP). The non-inferiority margin was set to 1.3, and a sample size of 270 patients per protocol (90 in each treatment arm) will detect this difference with 90% power. Discussion We chose a study design with comparison of analgesic regimens rather than fixed doses because of the substantial differences in drug characteristics and for the results to be relevant to inform policymakers in the pre-hospital setting. We recognize that easier administration of analgesics will lead to better pain management for many patients if the regimens are as good as the existing, and hence, we chose a non-inferiority design. The primary endpoint, the change in pain (NRS) after 10 min, is set to address the immediate need of pain reduction for patients with acute prehospital pain. On a later stage, more analgesic methods are often available. Summary PreMeFen is a non-inferiority randomized controlled trial comparing three analgesic regimens aiming to establish whether inhalation of methoxyflurane or intranasal fentanyl is as good as IV morphine for fast reduction of acute pain in the prehospital setting.

• Sigurðsson, Martin Ingi; Chew, Michelle; Olkkola, Klaus T.; Rehn, Marius; Kalliomäki, Maija-Liisa & Møller, Morten Hylander (2023). Saudi Critical Care Society clinical practice guidelines on the prevention of venous thromboembolism in adults with trauma: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. doi: 10.1111/aas.14292.
• Brede, Jostein Rødseth; Søvik, Edmund & Rehn, Marius (2022). Resuscitative endovascular balloon occlusion of the aorta: the postpartum haemorrhage perspective. Critical Care. ISSN 1364-8535. 26. doi: 10.1186/s13054-022-03942-0.
• Lie, Sole Lindvåg; Hisdal, Jonny; Rehn, Marius & Høiseth, Lars Øivind (2022). Effects of supplemental oxygen on systemic and cerebral hemodynamics in experimental hypovolemia: Protocol for a randomized, double blinded crossover study. PLOS ONE. ISSN 1932-6203. 17(6). doi: 10.1371/journal.pone.0270598. Show summary

  Supplemental oxygen is widely administered in trauma patients, often leading to hyperoxia. However, the clinical evidence for providing supplemental oxygen in all trauma patients is scarce, and hyperoxia has been found to increase mortality in some patient populations. Hypovolemia is a common finding in trauma patients, which affects many hemodynamic parameters, but little is known about how supplemental oxygen affects systemic and cerebral hemodynamics during hypovolemia. We therefore plan to conduct an experimental, randomized, double blinded crossover study to investigate the effect of 100% oxygen compared to room air delivered by a face mask with reservoir on systemic and cerebral hemodynamics during simulated hypovolemia in the lower body negative pressure model in 15 healthy volunteers. We will measure cardiac output, stroke volume, blood pressure, middle cerebral artery velocity and tolerance to hypovolemia continuously in all subjects at two visits to investigate whether oxygen affects the cardiovascular response to simulated hypovolemia. The effect of oxygen on the outcome variables will be analyzed with mixed linear regression. Trial registration: The study is registered in the European Union Drug Regulating Authorities Clinical Trials Database (EudraCT, registration number 2021-003238-35).

• Møller, Morten Hylander; Sigurðsson, Martin Ingi; Olkkola, Klaus T.; Rehn, Marius; Yli-Hankala, Arvi & Chew, Michelle S. (2022). Regional anaesthesia in patients on antithrombotic drugs – a joint ESAIC/ESRA guideline: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. 66(7), p. 887–889. doi: 10.1111/aas.14093. Full text in Research Archive
• Hagemo, Jostein Skjalg; Skulberg, Arne Kristian; Rehn, Marius; Valberg, Morten; Pesonen, Maiju & Heimdal, Hans Julius [Show all 7 contributors for this article] (2022). Inhaled nitric oxide as temporary respiratory stabilization in patients with COVID-19 related respiratory failure (INOCOV): Study protocol for a randomized controlled trial. PLOS ONE. ISSN 1932-6203. 17(5). doi: 10.1371/journal.pone.0268822. Full text in Research Archive
• Møller, Morten H.; Chew, Michelle S.; Olkkola, Klaus T.; Rehn, Marius; Yli-Hankala, Arvi & Sigurðsson, Martin I. (2022). Therapeutics and COVID-19—A living WHO guideline: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. 66(5), p. 636–637. doi: 10.1111/aas.14046.
• Møller, Morten Hylander; Sigurðsson, Martin Ingi; Olkkola, Klaus T.; Rehn, Marius; Yli-Hankala, Arvi & Chew, Michelle S. (2022). Transfusion strategies in bleeding critically ill adults: A clinical practice guideline from the European Society of Intensive Care Medicine: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. p. 1–2. doi: 10.1111/aas.14047.
• Rehn, Marius; Chew, Michelle S.; Olkkola, Klaus T.; Sigurðsson, Martin Ingi; Yli-Hankala, Arvi & Møller, Morten Hylander (2021). Clinical practice guideline on the management of septic shock and sepsis-associated organ dysfunction in children: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. p. 1–2. doi: 10.1111/aas.13958.
• Yli-Hankala, Arvi; Chew, Michelle S.; Olkkola, Klaus T.; Rehn, Marius; Sverrisson, Kristinn Ö. & Møller, Morten Hylander (2021). Clinical practice guideline on spinal stabilisation of adult trauma patients: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. p. 1–2. doi: 10.1111/aas.13933.
• Rehn, Marius; Bache, Kristi Cecilie Grønvold; Lossius, Hans Morten & Lockey, David (2020). Top five research priorities in physician-provided pre-hospital critical care - appropriate staffing, training and the effect on outcomes. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. doi: 10.1186/s13049-020-00724-x.
• Sverrisson, Kristinn Örn; Chew, Michelle S.; Olkkola, Klaus T.; Rehn, Marius; Yli-Hankala, Arvi & Møller, Morten Hylander (2020). Clinical practice guideline on gastrointestinal bleeding prophylaxis for critically ill patients: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. doi: 10.1111/aas.13773.
• Rehn, Marius & Lockey, David (2020). Early management of multi-trauma. In Gough, Christopher; Barnett, J & Cook, Tim (Ed.), Challenging concepts in critical care : Cases with expert commentary . Oxford University Press. ISSN 9780198814924. p. 53–65. doi: 10.1093/med/9780198814924.003.0004.
• Bache, Kristi Cecilie Grønvold & Rehn, Marius (2019). The boundaries of our imagination are not restricted by limits, but by lack of knowledge. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 27. doi: 10.1186/s13049-019-0677-4.
• Chew, Michelle S.; Rehn, Marius; Olkkola, Klaus T.; Sverrisson, Kristinn Örn; Yli-Hankala, Arvi & Møller, Morten Hylander (2019). Clinical practice guideline on prevention of rhabdomyolysis induced acute kidney injury: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. p. 1–2. doi: 10.1111/aas.13458.
• Rehn, Marius; Chew, Michelle S.; Olkkola, Klaus T.; Sverrison, Kristinn Ö.; Yli-Hankala, Arvi & Møller, Morten Hylander (2019). Clinical practice guideline on atraumatic (pencil-point) vs conventional needles for lumbar puncture: Endorsement by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. 63, p. 438–439. doi: 10.1111/aas.13312.
• Viinamäki, J; Fattah, Sabina; Wisborg, Torben; Rehn, Marius; Engblom, J & Raatiniemi, Lasse (2018). Inter-rater reliability of a global major incident reporting template – a pilot study. Laurea Journal.
• Fattah, Sabina; Rehn, Marius & Wisborg, Torben (2018). Slik kan man lære av katastrofer. Dagens næringsliv. ISSN 0803-9372.
• Reid, Bjørn Ole; Haugland, Helge Nystad; Rehn, Marius; Uleberg, Oddvar & Krüger, Andreas (2018). Search and rescue compared to remote Medical Evacuation in a Norwegian setting.
• Nava, Sam; Thompson, Julian & Rehn, Marius (2018). ECMO in major trauma: a systematic literature review.
• Seligmann, William; Dodds, N; Bourn, S; Ray, A; Paulich, S & Rehn, Marius [Show all 7 contributors for this article] (2018). A systematic review of blood and CSF biomarkers as early prognosticators in severe traumatic brain injury.
• Rehn, Marius; Chew, Michelle S.; Olkkola, Klaus T.; Sverrison, Kristinn Örn; Yli-Hankala, Arvi & Møller, Morten Hylander (2018). Endorsement of clinical practice guidelines by the Scandinavian Society of Anaesthesiology and Intensive Care Medicine. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. 63, p. 161–163. doi: 10.1111/aas.13306.
• Bache, Kristi Cecilie Grønvold; Rehn, Marius & Thompson, Julian (2018). Seven years since defining the top five research priorities in physician-provided pre-hospital critical care - what did it lead to and where are we now? Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 26(101). doi: 10.1186/s13049-018-0562-6.
• Crewdson, Kate; Rehn, Marius; Brohi, Karim & Lockey, David (2018). Response letter to Voelckel et al. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172.
• Crewdson, Kate; Rehn, Marius; Brohi, Karim & Lockey, David (2018). Response to Burns et al. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172.
• Rehn, Marius; Weaver, AE; Eshelby, Sarah; Røislien, Jo & Lockey, David (2018). Pre-hospital transfusion of red blood cells: the role of balanced transfusion protocols and survival bias. Transfusion Medicine. ISSN 0958-7578. doi: 10.1111/tme.12565.
• Thompson, Charles Julian; Rehn, Marius & Sollid, Stephen J. M. (2018). EHAC medical working group best practice advice on the role of air rescue and pre hospital critical care at major incidents. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 26:65, p. 1–5. doi: 10.1186/s13049-018-0522-1.
• Hardy, Sophie; Fattah, Sabina; Wisborg, Torben; Raatiniemi, Lasse; Staff, Trine & Rehn, Marius (2018). Correction: Systematic reporting to improve the emergency medical response to major incidents: A pilot study. BMC Emergency Medicine. ISSN 1471-227X. 18(6). doi: 10.1186/s12873-018-0157-6.
• Turner, Conor D.A.; Lockey, David & Rehn, Marius (2017). Erratum: Pre-hospital management of mass casualty civilian shootings: A systematic literature review[literature review. Crit Care,20 (2016)(362)] DOI:10.1186/s13054-016-1543-7. Critical Care. ISSN 1364-8535. 21:94, p. 1–1. doi: 10.1186/s13054-017-1663-8.
• Samdal, Martin; Haugland, Helge; Fjeldet, Cato; Rehn, Marius & Sandberg, Mårten (2017). Underhengende evakuering med ambulansehelikopter i forbindelse med redningstekniske aksjoner i Helse Sørøst.
• Viinamäki, J; Fattah, Sabina; Jokela, J; Wisborg, T; Rehn, Marius & Engblom, J (2017). An inter-rater variability study of a global major incident reporting template: A pilot study.
• Hardy, S.; Fattah, Sabina; Raatiniemi, Lasse; Staff, T.; Wisborg, T & Rehn, Marius (2017). How can systematic reporting improve the emergency medical response to major incidents? A pilot study.
• Haugland, Helge Nystad; Uleberg, Oddvar; Klepstad, Pål; Krüger, Andreas & Rehn, Marius (2017). Kvalitetsmåling i legebemannede utrykningstjenester: en systematisk litteraturgjennomgang. NAForum. ISSN 0802-5088. 30(3).
• Haugland, Helge Nystad; Uleberg, Oddvar; Klepstad, Pål; Krüger, Andreas & Rehn, Marius (2017). Kvalitetsmåling i legebemannede utrykningstjenester: en systematisk litteraturgjennomgang.
• Reid, Bjørn Ole; Rehn, Marius; Uleberg, Oddvar; Næss-Pleym, Lars E. & Krüger, Andreas (2017). Tverretatlig samhandling i legebemannet luftambulanse tjeneste. NAForum. ISSN 0802-5088. 30(3), p. 44–44.
• Reid, Bjørn Ole; Rehn, Marius; Uleberg, Oddvar; Næss-Pleym, Lars E. & Krüger, Andreas (2017). Tverretatlig samhandling i legebemannet luftambulanse tjeneste.
• Rehn, Marius; Hyldmo, Per Kristian; Magnússon, Vidar; Kurola, Jouni O.; Kongstad, Poul C. & Rognås, Leif Kåre [Show all 8 contributors for this article] (2017). Reply from the authors: SSAI guideline on pre-hospital airway management: keep it safe and simple. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. 61(1), p. 127–128. doi: 10.1111/aas.12817.
• Fattah, Sabina; Rehn, Marius & Wisborg, Torben (2016). Field Reports: Yes, They Will Add to the Prehospital and Disaster Knowledge Base. Prehospital and Disaster Medicine. ISSN 1049-023X. 31(4).
• Fattah, Sabina; Rehn, Marius & Wisborg, Torben (2015). Implementing a template for major incident reporting: Experiences from the first year. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 23:55. doi: 10.1186/s13049-015-0132-0.
• Tønsager, Kristin & Rehn, Marius (2015). Pre-hospital management of mass casualty civilian shootings.
• Rehn, Marius (2015). Mechanism of injury as a predictor of severity of injury in road traffic collisions: a literature review.
• Rehn, Marius (2015). Should we “stay-and-play? A study of patient physiology in Norwegian Helicopter Emergency Services.
• Rehn, Marius (2015). Prehospital håndtering av pediatriske hengninger.
• Rehn, Marius (2015). Londons ́s Air Ambulance: 15 year experience with paediatric hanging.
• Rehn, Marius (2015). Reporting of major incident medical management.
• Rehn, Marius (2015). Implementering og anvendbarhet av en global rapporteringsmal for pre-hospital medisinsk håndtering av større hendelser.
• Reid, Bjørn Ole; Rehn, Marius; Uleberg, Oddvar & Krüger, Andreas (2015). Should we “stay-and-play? A study of patient physiology in Norwegian Helicopter Emergency Services.
• Fattah, Sabina; Rehn, Marius; Lockey, David; Thompson, Julian; Lossius, Hans Morten & Wisborg, Torben (2014). Erratum to A consensus based template for reporting of pre-hospital major incident medical management [Scand J Trauma Resusc Emerg Med 22 (2013) 5]. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 22(1), p. 1–1. doi: 10.1186/s13049-014-0042-6.
• Rehn, Marius & Krüger, Andreas (2014). Quality improvement in pre-hospital critical care : increased value through research and publication. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 22:34. doi: 10.1186/1757-7241-22-34.
• Rehn, Marius (2013). Improving adjustments for older age in pre-hospital assessment and care. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 21. doi: 10.1186/1757-7241-21-4.
• Fattah, Sabina; Rehn, Marius; Lockey, David; Thompson, J; Lossius, Hans Morten & Wisborg, Torben (2013). A consensus based template for reporting pre-hospital major incident medical management. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. 57, p. 22–22.
• Rehn, Marius & Sollid, Stephen (2013). Retningslinjer for masseskadetriage er etablert. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 133(19), p. 2029–2029.
• Kristiansen, Thomas; Kristensen, Petter; Gravseth, Hans Magne Ulrik; Rehn, Marius; Røislien, Jo & Søreide, Kjetil [Show all 7 contributors for this article] (2013). Epidemiology of trauma: a population-based study of fatal injury and geographical challenges in Norwegian trauma care.
• Kristiansen, Thomas; Rehn, Marius; Gravseth, Hans Magne Ulrik; Lossius, HM & Kristensen, Petter (2011). Paediatric trauma mortality in Norway.
• Rehn, Marius & Krüger, Andreas J. (2010). Det prehospitale paradoks. Tidsskrift for Den norske legeforening. ISSN 0029-2001.
• Rehn, Marius & Lossius, Hans Morten (2010). Katastrofetriage. Behov for en nasjonal standard. Tidsskrift for Den norske legeforening. ISSN 0029-2001.
• Rehn, Marius & Kristiansen, Thomas (2010). Triage and interhospital transfer: influencing trauma mortality? Acta Anaesthesiologica Scandinavica. ISSN 0001-5172.
• Rehn, Marius; Kristiansen, Thomas; Braarud, Anne-Cathrine; Holtan, Anders; Skaga, Nls Oddvar & Strand, Terje [Show all 9 contributors for this article] (2010). Nye triagekriterier: Oslo–Akershus Triage Studie (OATS).
• Kristiansen, Thomas; Rehn, Marius; Braarud, Anne-Cathrine; Holtan, Anders; Skaga, Nls Oddvar & Strand, Terje [Show all 9 contributors for this article] (2010). NYE TRIAGEKRITERIER: OSLO–AKERSHUS TRIAGE STUDIE (OATS).
• Kristiansen, Thomas; Rehn, Marius; Gravseth, Hans Magne Ulrik; Lossius, HM & Kristensen, Petter (2010). Injury mortality among Norwegian elderly: 10-year population–based register study.
• Kristiansen, Thomas; Rehn, Marius; Gravseth, Hans Magne Ulrik; Lossius, HM & Kristensen, Petter (2010). Patterns of paediatric trauma deaths: 10-year population–based register study.
• Kristensen, Petter; Kristiansen, Thomas; Rehn, Marius; Gravseth, Hans Magne Ulrik & Bjerkedal, Tor (2010). Fatal road traffic injuries at age 16-20 years among 611654 persons born in Norway 1967-1976: multilevel cohort study. Injury Prevention. ISSN 1353-8047. 16, p. A156–A156.
• Lossius, Hans Morten; Kristiansen, Thomas; Ringdal, Kjetil G. & Rehn, Marius (2010). Inter-hospital transfer: the crux of the trauma system, a curse for trauma registries. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 18.
• Rehn, Marius; Vigerust, T; Kruger, A & Andersen, John E. (2010). Paediatric vital sign tape on stretchers: a field-friendly triage tool? Emergency Medicine Journal. ISSN 1472-0205. 27(5), p. 412–412. doi: 10.1136/emj.2009.087585.
• Kristensen, Petter; Kristiansen, Thomas; Rehn, Marius; Gravseth, Hans Magne Ulrik & Bjerkedal, Tor (2010). Fatal road traffic injuries at age 16-20 years among 611654 persons born in Norway 1967-1976: multilevel cohort study.
• Krüger, Andreas & Rehn, Marius (2010). Early prophylactic hypothermia in severe traumatic brain injury-Challenging a pre-hospital paradigm? Injury. ISSN 0020-1383. 41(9), p. 975–975. doi: 10.1016/j.injury.2009.09.034.
• Krüger, Andreas & Rehn, Marius (2010). Early prophylactic hypothermia in severe traumatic brain injury-Challenging a pre-hospital paradigm? Injury. ISSN 0020-1383. 41(7), p. 1062–1062. doi: 10.1016/j.injury.2009.09.034.
• Rehn, Marius; Eken, Torsten; Kruger, Andreas; Steen, Petter Andreas & Lossius, Hans Morten (2009). Re: Field triage in trauma - do the data justify the conclusions? Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 17.
• Rehn, Marius; Eken, Torsten; Kruger, Andreas; Skaga, Nils Oddvar; Steen, Petter Andreas & Lossius, Hans Morten (2008). Upresis felttriage av alvorlig skadde.
• Rehn, Marius; Eken, Torsten; Kruger, Andreas; Skaga, Nils Oddvar; Steen, Petter Andreas & Lossius, Hans Morten (2008). Imprecise field triage of trauma victims.
• Tønsager, Kristin; Krüger, Andreas; Ringdal, Kjetil G. & Rehn, Marius (2021). Defining core data for continuous benchmarking in pre-hospital critical care. Universitetet i Stavanger.

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