Thomas Kristiansen

• Jørgenrud, Benedicte Marie; Bråthen, Camilla Christin; Steinson Stenehjem, Jo; Kristiansen, Thomas; Rosseland, Leiv Arne & Bogstrand, Stig Tore (2024). Identifying excessive chronic alcohol use with phosphatidylethanol in patients with suspected severe injury-results from the IDART study. Alcohol and Alcoholism. ISSN 0735-0414. 59(3). doi: 10.1093/alcalc/agae014.
• Bråthen, Camilla Christin; Jørgenrud, Benedicte Marie; Bogstrand, Stig Tore; Gjerde, Hallvard; Rosseland, Leiv Arne & Kristiansen, Thomas (2023). Prevalence of use and impairment from drugs and alcohol among trauma patients: A national prospective observational study. Injury. ISSN 0020-1383. 54(12). doi: 10.1016/j.injury.2023.111160. Fulltekst i vitenarkiv Vis sammendrag

  Background: Being under the influence of psychoactive substances increases the risk of involvement in and dying from a traumatic event. The study is a prospective population-based observational study that aims to determine the prevalence of use and likely impairment from psychoactive substances among patients with suspected severe traumatic injury. Method: This study was conducted at 35 of 38 Norwegian trauma hospitals from 1 March 2019 to 29 February 2020. All trauma admissions for patients aged ≥ 16 years admitted via trauma team activation during the study period were eligible for inclusion. Blood samples collected on admission were analysed for alcohol, benzodiazepines, benzodiazepine-like hypnotics (Z-drugs), opioids, stimulants, and cannabis (tetrahydrocannabinol). Results: Of the 4878 trauma admissions included, psychoactive substances were detected in 1714 (35 %) and in 771 (45 %) of these, a combination of two or more psychoactive substances was detected. Regarding the level of impairment, 1373 (28 %) admissions revealed a concentration of one or more psychoactive substances indicating likely impairment, and 1052 (22 %) highly impairment. Alcohol was found in 1009 (21 %) admissions, benzodiazepines and Z-drugs in 613 (13 %), opioids in 467 (10 %), cannabis in 352 (7 %), and stimulants in 371 (8 %). Men aged 27-43 years and patients with violence-related trauma had the highest prevalence of psychoactive substance use with respectively 424 (50 %) and 275 (80 %) testing positive for one or more compounds. Conclusion: The results revealed psychoactive substances in 35 % of trauma admissions, 80 % of which were likely impaired at the time of traumatic injury. A combination of several psychoactive substances was common, and younger males and patients with violence-related injuries were most often impaired. Injury prevention strategies should focus on high-risk groups and involve the prescription of controlled substances. We should consider toxicological screening in trauma admissions and incorporation of toxicological data into trauma registries.

• Andresen, Åke Erling Lappen; Lauritzen, Magnus Varlid; Kramer-Johansen, Jo & Kristiansen, Thomas (2023). Implementation and use of a supraglottic airway device in the management of out-of-hospital cardiac arrest by firefighter first responders – A prospective feasibility study. Resuscitation Plus. ISSN 2666-5204. 16. doi: 10.1016/j.resplu.2023.100480. Fulltekst i vitenarkiv
• Andresen, Åke Erling Lappen; Kramer-Johansen, Jo & Kristiansen, Thomas (2022). Emergency cricothyroidotomy in difficult airway simulation – a national observational study of Air Ambulance crew performance. BMC Emergency Medicine. ISSN 1471-227X. 22(1), s. 1–8. doi: 10.1186/s12873-022-00624-6. Fulltekst i vitenarkiv Vis sammendrag

  Background: Advanced prehospital airway management includes complex procedures carried out in challeng‑ ing environments, necessitating a high level of technical and non-technical skills. We aimed to describe Norwegian Air Ambulance-crews’ performance in a difcult airway scenario simulation, ending with a “cannot intubate, cannot oxygenate”-situation. Methods: The study describes Air Ambulance crews’ management of a simulated difcult airway scenario. We used video-observation to assess time expenditure according to pre-defned time intervals and technical and non-techni‑ cal performance was evaluated according to a structured evaluation-form. Results: Thirty-six crews successfully completed the emergency cricothyroidotomy with mean procedural time 118 (SD: ±70) seconds. There was variation among the crews in terms of completed procedural steps, including prepara‑ tion of equipment, patient- monitoring and management. The participants demonstrated uniform and appropriate situational awareness, and efective communication and resource utilization within the crews was evident. Conclusions: We found that Norwegian Air Ambulance crews managed a prehospital “cannot intubate, cannot oxygenate”-situation with an emergency cricothyroidotomy under stressful conditions with efective communica‑ tion and resource utilization, and within a reasonable timeframe. Some discrepancies between standard operating procedures and performance are observed. Further studies to assess the impact of check lists on procedural aspects of airway management in the prehospital environment are warranted.

• Stenehjem, Jo Steinson; Røise, Olav; Nordseth, Trond; Clausen, Thomas; Natvig, Bård & Skurtveit, Svetlana Ondrasova [Vis alle 10 forfattere av denne artikkelen] (2021). Injury Prevention and long-term Outcomes following Trauma - The IPOT project: a protocol for prospective nationwide registry-based studies in Norway. BMJ Open. ISSN 2044-6055. 11(5). doi: 10.1136/bmjopen-2020-046954. Fulltekst i vitenarkiv
• Andresen, Åke Erling Lappen; Kramer-Johansen, Jo & Kristiansen, Thomas (2019). Percutaneous vs surgical emergency cricothyroidotomy: An experimental randomized crossover study on an animal-larynx model. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. 63(10), s. 1306–1312. doi: 10.1111/aas.13447. Fulltekst i vitenarkiv
• Uleberg, Oddvar; Pape, Kristine; Kristiansen, Thomas; Romundstad, Pål Richard & Klepstad, Pål (2018). Population-based analysis of the impact of trauma on longer-term functional outcomes. British Journal of Surgery. ISSN 0007-1323. 106(1), s. 65–73. doi: 10.1002/bjs.10965.
• Uleberg, Oddvar; Kristiansen, Thomas; Pape, Kristine; Romundstad, Pål Richard & Klepstad, Pål (2017). Trauma care in a combined rural and urban region: an observational study. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. 61(3), s. 346–356. doi: 10.1111/aas.12856.
• Røislien, Jo; Lossius, Hans Morten & Kristiansen, Thomas (2015). Does transport time help explain the high trauma mortality rates in rural areas? New and traditional predictors assessed by new and traditional statistical methods. Injury Prevention. ISSN 1353-8047. 21(6), s. 367–373. doi: 10.1136/injuryprev-2014-041473.
• Uleberg, Oddvar; Vinjevoll, Ole-Petter; Kristiansen, Thomas & Klepstad, Pål (2014). Norwegian trauma care: a national cross-sectional survey of all hospitals involved in the management of major trauma patients. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 22:64(64). doi: 10.1186/s13049-014-0064-0. Fulltekst i vitenarkiv
• Kristiansen, Thomas; Lossius, Hans Morten; Rehn, Marius; Kristensen, Petter; Gravseth, Hans Magne Ulrik & Røislien, Jo [Vis alle 7 forfattere av denne artikkelen] (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), s. 23–30. doi: 10.1016/j.injury.2013.07.007. Vis sammendrag

  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.

• Kristiansen, Thomas; Søreide, Kjetil; Ringdal, Kjetil G.; Rehn, Marius; Krüger, Andreas J. & Reite, Andreas [Vis alle 9 forfattere av denne artikkelen] (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.
• Kristiansen, Thomas; Ringdal, Kjetil G.; Skotheimsvik, Tarjei; Salthammer, Halvor Kjørholt; Gaarder, Christine & Næss, Pål Aksel [Vis alle 7 forfattere av denne artikkelen] (2012). Implementation of recommended trauma system criteria in south-eastern Norway: a cross-sectional hospital survey. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 20. doi: 10.1186/1757-7241-20-5.
• 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, s. 1865–1872. doi: 10.1016/j.injury.2011.08.011. Vis sammendrag

  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), s. 3–9. doi: 10.1136/ip.2011.031682. Vis sammendrag

  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.

• Kristiansen, Thomas; Lossius, Hans Morten; Søreide, Kjetil; Steen, Petter Andreas; Gaarder, Christine & Næss, Pål Aksel (2011). Patients referred to a Norwegian trauma centre: effect of transfer distance on injury patterns, use of resources and outcomes. Journal of Trauma Management & Outcomes. ISSN 1752-2897. 5(1). doi: 10.1186/1752-2897-5-9.
• Kristiansen, Thomas; Søreide, Kjetil; Ringdal, Kjetil G.; Rehn, Marius; Krüger, Andreas J. & Reite, Andreas [Vis alle 9 forfattere av denne artikkelen] (2010). Trauma systems and early management of severe injuries in Scandinavia: Review of the current state. Injury. ISSN 0020-1383. 41(5), s. 444–452. doi: 10.1016/j.injury.2009.05.027.
• Kristiansen, Tarjei & Wangensteen, Ivar (2006). Effect of losses on area prices in the Norwegian electricity market. International Journal of Electrical Power & Energy Systems. ISSN 0142-0615. 28(1), s. 43–47.

Se alle arbeider i Cristin

• Ulf, Kongsgaard & Kristiansen, Thomas (2023). Selvkirurgi. Tidsskrift for Den norske legeforening. ISSN 0029-2001. doi: 10.4045/TIDSSKR.23.0158.
• Kristiansen, Thomas; Kvandal, Per; Kleven, Josef; Fremmerlid, Margit Louise & Kongsgaard, Ulf E. (2022). Cerebral circulatory ultrasound assessment of patients undergoing robotic surgery in Trendelenburg position (CURT) - results from a pilot study on intraoperative transcranial Doppler monitoring.
• Rasmussen, Anders; Stenehjem, Jo Steinson; Røise, Olav; Gran, Jon Michael; Kristiansen, Thomas & Uleberg, Oddvar [Vis alle 8 forfattere av denne artikkelen] (2022). Standardised mortality rates for non-traumatic deaths among survivors of trauma in Norway (2015-2018).
• Uleberg, Oddvar; Kristiansen, Thomas; Nordseth, Trond; Stenehjem, Jo S.; Gran, Jon Michael & Clausen, Thomas [Vis alle 8 forfattere av denne artikkelen] (2022). Skader etter vold og ulykker - den glemte pandemi? Tidsskrift for Den norske legeforening. ISSN 0029-2001. 142(8), s. 678–679. doi: 10.4045/tidsskr.22.0261.
• Uleberg, Oddvar; Stenehjem, Jo S.; Nordseth, Trond; Clausen, Thomas; Natvig, Bård & Skurtveit, Svetlana Ondrasova [Vis alle 12 forfattere av denne artikkelen] (2022). The injury prevention and outcomes following trauma (IPOT) project: is a nationwide registry-based study in Norway feasible?
• Kvandal, Per; Kleven, Josef; Kongsgaard, Ulf; Fremmerlid, Margit Louise & Kristiansen, Thomas (2021). Cerebral Circulatory Ultrasound Assessment Of Patients Undergoing Robotic Surgery In A Trendelenburg Position - CURT .
• Stenehjem, Jo S.; Røise, Olav; Nordseth, Trond; Clausen, Thomas; Natvig, Bård & Skurtveit, Svetlana Ondrasova [Vis alle 12 forfattere av denne artikkelen] (2021). Injury Prevention and long-term Outcomes following Trauma - the IPOT project: a protocol for prospective nationwide registry-based studies in Norway.
• Rosseland, Leiv Arne; Stenehjem, Jo S.; Nordseth, Trond; Clausen, Thomas; Natvig, Bård & Skurtveit, Svetlana Ondrasova [Vis alle 12 forfattere av denne artikkelen] (2021). The Injury Prevention and Outcomes following Trauma project: a prospective nationwide registry-based study in Norway.
• Kristiansen, Thomas; Olin, Per Bertil Mårten & Haugaa, Håkon (2019). Low-flow extracorporeal carbon dioxide removal - three years´experience at OUS Rikshospitalet.
• Bråthen, Camilla Christin; Jørgenrud, Benedicte Marie; Skadberg, Eline; Bogstrand, Stig Tore; Gjerde, Hallvard & Rosseland, Leiv Arne [Vis alle 7 forfattere av denne artikkelen] (2019). IDART: Impairing drug and alcohol as risk factors for traumatic injuries.
• Uleberg, Oddvar; Pape, Kristine; Kristiansen, Thomas; Romundstad, Pål Richard & Klepstad, Pål (2018). Long term impacts of trauma on return to work and need for medical benefits - a population-based follow-up study.
• Kristiansen, Thomas; Kristensen, Petter; Gravseth, Hans Magne Ulrik; Rehn, Marius; Røislien, Jo & Søreide, Kjetil [Vis alle 7 forfattere av denne artikkelen] (2013). Epidemiology of trauma: a population-based study of fatal injury and geographical challenges in Norwegian trauma care.
• Kristiansen, Thomas & Kristensen, Petter (2011). Er trafikkdød forbundet med sosiale forskjeller? Tidsskrift for Den norske legeforening. ISSN 0029-2001. 131, s. 1407–1407. doi: 10.4045/tidsskr.11.0644. Vis sammendrag

  Forekomsten av dødelige trafikkskader er mangedoblet etter fylte 16 år (fig 1). Økningen er mest markant blant menn, hvor ulykker er den største dødsårsaken frem til fylte 40 år. Vi har studert forekomsten av dødelige trafikkskader blant alle som var født i Norge i tiårsperioden 1967 – 76 (1). Studien omfattet 611 654 personer, som ble fulgt fra 16 – 21 års alder. Under oppfølgingen døde 676 etter veitrafikkhendelser (insidensrate 22,2 per 100 000 personår). Den totale dødeligheten etter trafikkskader var halvert i høyinntektskommuner sammenliknet med lavinntektskommuner. På individnivå var det imidlertid ikke signifikant sammenheng mellom foreldrenes inntekt og risikoen for trafikkdød. For ikke-kollisjonsdød, der kjøretøyet kjører av veien uten å støte sammen med annet kjøretøy, var det uttalte sosiale ulikheter på individnivå for guttene i studien: Lavt utdanningsnivå hos foreldrene var sterkt assosiert med økt risiko for dødelige trafikkskader. Studien viser nyanser i risiko for trafikkskader som tidligere har vært ukjent og som bør vektlegges i det videre arbeidet mot trafikkdød i denne aldersgruppen.

• Kristiansen, Thomas; Rehn, Marius; Gravseth, Hans Magne Ulrik; Lossius, HM & Kristensen, Petter (2011). Paediatric trauma mortality in Norway.
• 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 [Vis alle 9 forfattere av denne artikkelen] (2010). Nye triagekriterier: Oslo–Akershus Triage Studie (OATS).
• Kristiansen, Thomas; Rehn, Marius; Braarud, Anne-Cathrine; Holtan, Anders; Skaga, Nls Oddvar & Strand, Terje [Vis alle 9 forfattere av denne artikkelen] (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, s. 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.
• 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.
• Jørgenrud, Benedicte Marie; Gjerde, Hallvard; Bråthen, Camilla Christin; Bogstrand, Stig Tore; Rosseland, Leiv Arne & Kristiansen, Thomas (2022). Rusmiddel- og legemiddelbruk som risikofaktorer for alvorlige ulykker. Oslo universitetssykehus HF.
• Uleberg, Oddvar; Klepstad, Pål; Pape, Kristine & Kristiansen, Thomas (2019). The trauma system and the patient - a national, regional and individual perspective. Norwegian University of Science and Technology. ISSN 978-82-326-3700-3.

Se alle arbeider i Cristin