Jo Kramer-Johansen

Professor II - Department of Prehospital Services

Norwegian version of this page

Email jo.kramer-johansen@medisin.uio.no

Mobile phone +47 97539429 +47 97539429

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Visiting address NAKOS Oslo University Hospital Ullevål Building 31B

Postal address Postboks 4956 Nydalen OUS, Ullevål 0424 Oslo

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Born 1969, certified as Anaesthesiologist 2003, PhD 2007 with the thesis "Reporting and improving quality of cardiopulmonary resuscitation (CPR) during out of hospital cardiac arrest".

He maintains an interest in quality of CPR, both as performed by bystanders and professionals, and his main research area continues to revolve among education and implementation.

He is elected board member of the Norwegian Resuscitation Council (www.nrr.org) and appointed leader of the institutional advisory board for CPR and cardiac arrest at Oslo University Hospital.

Idland, Siri; Kramer-Johansen, Jo; Bakke, Håkon Kvåle; Småstuen, Milada Cvancarova; Tønsager, Kristin & Platou, Hans-Christian Stoud [Show all 7 contributors for this article] (2024). Can video streaming improve first aid for injured patients? A prospective observational study from Norway. BMC Emergency Medicine. ISSN 1471-227X. 24(1). doi: 10.1186/s12873-024-01010-0.
Kelpanides, Inga Katherina; Katzenschlager, Stephan; Skogvoll, Eirik; Tjelmeland, Ingvild Beathe Myrhaugen; Berner, Guro Grindheim & Alm-Kruse, Kristin [Show all 11 contributors for this article] (2024). Out-of-hospital cardiac arrest in children in Norway: A national cohort study, 2016–2021. Resuscitation Plus. ISSN 2666-5204. 18. doi: 10.1016/j.resplu.2024.100662.
Jamtli, Bjørn; Hov, Maren Ranhoff; Jørgensen, Trine Møgster; Kramer-Johansen, Jo; Ihle-Hansen, Hege Beate & Sandset, Else Charlotte [Show all 8 contributors for this article] (2024). Telephone triage and dispatch of ambulances to patients with suspected and verified acute stroke - a descriptive study. BMC Emergency Medicine. ISSN 1471-227X. 24(1). doi: 10.1186/s12873-024-00962-7.
Katzenschlager, Stephan; Elshaer, Ahmed; Metelmann, Bibiana; Metelmann, Camilla; Thilakasiri, Kaushila & Karageorgos, Vlasios [Show all 12 contributors for this article] (2024). Top 5 barriers in cardiac arrest research as perceived by international early career researchers – A consensus study. Resuscitation Plus. ISSN 2666-5204. 18. doi: 10.1016/j.resplu.2024.100608.
Alm-Kruse, Kristin; Gjerset, Gunhild M.; Tjelmeland, Ingvild B. M.; Isern, Cecilie B.; Kramer-Johansen, Jo & Garratt, Andrew M. (2024). How do survivors after out-of-hospital cardiac arrest perceive their health compared to the norm population? A nationwide registry study from Norway. Resuscitation Plus. ISSN 2666-5204. 17, p. 1–9. doi: 10.1016/j.resplu.2023.100549. Full text in Research Archive
Olasveengen, Theresa M.; Skaare, Christiane; Skjerven-Martinsen, Marianne; Hoff-Olsen, Per; Kramer-Johansen, Jo & Nordum, Fredrik Hoff [Show all 9 contributors for this article] (2023). Lung tissue injury and hemodynamic effects of ventilations synchronized or unsynchronized to continuous chest compressions in a porcine cardiac arrest model. Resuscitation Plus. ISSN 2666-5204. 17. doi: 10.1016/j.resplu.2023.100530. Full text in Research Archive
Katzenschlager, Stephan; Kelpanides, Inga Katherina; Ristau, Patrick; Huck, Matthias; Seewald, Stephan & Brenner, Sebastian [Show all 13 contributors for this article] (2023). Out-of-hospital cardiac arrest in children: an epidemiological study based on the German Resuscitation Registry identifying modifiable factors for return of spontaneous circulation. Critical Care. ISSN 1364-8535. 27(1). doi: 10.1186/s13054-023-04630-3. Full text in Research Archive
Tjelmeland, Ingvild Beathe Myrhaugen; Alm-Kruse, Kristin; Nordsteien Svensøy, Johannes; Landbø, Gry & Kramer-Johansen, Jo (2023). Norsk hjertestansregister. Norsk Epidemiologi. ISSN 0803-2491. 31(1-2), p. 25–30. doi: 10.5324/nje.v31i1-2.5607. Full text in Research Archive
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. Full text in Research Archive
Isern, Cecilie Benedicte; Nilsson, Birgitta Blakstad; Garratt, Andrew; Kramer-Johansen, Jo; Tjelmeland, Ingvild Beathe Myrhaugen & Berge, Hilde Moseby (2023). Health-related quality of life in young Norwegian survivors of out-of-hospital cardiac arrest related to pre-arrest exercise habits. Resuscitation Plus. ISSN 2666-5204. 16. doi: 10.1016/j.resplu.2023.100478. Full text in Research Archive
Idland, Siri; Kramer-Johansen, Jo; Bakke, Håkon Kvåle & Hjortdahl, Magnus (2023). Assessing bystander first aid: development and validation of a First Aid Quality Assessment (FAQA) tool. BMC Emergency Medicine. ISSN 1471-227X. doi: 10.1186/s12873-023-00811-z. Full text in Research Archive
Guterud, Mona; Bugge, Helge Fagerheim; Røislien, Jo; Kramer-Johansen, Jo; Toft, Mathias & Ihle-Hansen, Hege Beathe [Show all 11 contributors for this article] (2023). Prehospital screening of acute stroke with the National Institutes of Health Stroke Scale (ParaNASPP): a stepped-wedge, cluster-randomised controlled trial. Lancet Neurology. ISSN 1474-4422. 22(9), p. 800–811. doi: 10.1016/S1474-4422(23)00237-5.
Harring, Astrid Karina V.; Kramer-Johansen, Jo & Tjelmeland, Ingvild Beathe Myrhaugen (2023). Resuscitation of older adults in Norway; a comparison of survival and outcome after out-of-hospital cardiac arrest in healthcare institutions and at home. Resuscitation. ISSN 0300-9572. 189. doi: 10.1016/j.resuscitation.2023.109871. Full text in Research Archive
Isern, Cecilie Benedicte; Kramer-Johansen, Jo; Tjelmeland, Ingvild Beathe Myrhaugen; Bahr, Roald & Berge, Hilde Moseby (2023). A 3-year population-based study of exercise-related sudden cardiac arrest among 12- to 50-year-old Norwegians. Scandinavian Journal of Medicine & Science in Sports. ISSN 0905-7188. doi: 10.1111/sms.14400. Full text in Research Archive Show summary
Introduction: Regular exercise is associated with reduced risk of cardiovascular disease. Paradoxically, an increased risk of sudden cardiac arrest (SCA) is documented during or immediately after exercise and in athletes compared to the nonathletic population. Our objective was to identify, through multiple sources, the total number of exercise-related versus non-exercise-related SCA in the young population in Norway. Methods: We collected primary data from the prospective Norwegian Cardiac Arrest Registry (NorCAR) for all patients aged 12–50 suffering SCA of presumed cardiac cause from 2015 to 2017. We collected secondary data about prior physical activity and the SCA, through questionnaires. We searched media reports for SCA incidents in sports. Exercise-related SCA is defined as SCA during or <1 h after exercise. Results: Overall, 624 patients, median age 43 years, were included from NorCAR. Two thirds (393) replied to the study invitation, of whom 236 answered the questionnaires: 95 survivors and 141 next of kin. The media search resulted in 18 relevant hits. With a multiple source approach, we identified 63 cases of exercise-related SCA, equivalent to an incidence of 0.8/100 000 person-years, versus 7.8/100 000 person-years of non-exercise-related SCA. Among those who answered (n = 236), almost two thirds (59%) exercised regularly, most commonly (45%) 1–4 h/week. Endurance exercise (38%) was the most prevalent type of regular exercise and the most common activity during exercise-related SCA (53%). Conclusion: The burden of exercise-related SCA was low (0.8 per 100 000 person-years) and ten times lower than non-exercise-related SCA in the young population in Norway.
Alm-Kruse, Kristin; Tjelmeland, Ingvild Beathe Myrhaugen; Reiner, Andrew Henry; Kvåle, Rune & Kramer-Johansen, Jo (2023). Use of healthcare services before and after out-of-hospital cardiac arrest. Resuscitation. ISSN 0300-9572. 187. doi: 10.1016/j.resuscitation.2023.109805. Full text in Research Archive Show summary
Introduction Knowledge about the use of healthcare services in patients experiencing out-of-hospital cardiac arrest (OHCA) is limited. We aimed to describe and compare the use of healthcare by OHCA survivors two years before and one year after cardiac arrest. Methods Adult patients with OHCA of medical cause, who survived >30 days, were identified in the Norwegian Cardiac Arrest Registry. The Norwegian Patient Registry, The Cause of Death Registry, and The Norwegian Registry for Primary Healthcare provided data on survival and the use of healthcare services. We investigated the use of primary, specialist and mental healthcare, as well as rehabilitation services. Results In 2015–2018, 13,112 OHCA cases were identified; 1435 (14%) patients survived >30 days (6.8/100,000 patients/year). The proportion of patients in the cohort that used primary healthcare each month increased form 43% before to 69% after OHCA to (p 0.001). The observed increases in primary, specialist and mental healthcare use started two weeks, six months, and eight months before OHCA, respectively. Half of the patients had contact with primary healthcare services on the same day as the cardiac arrest. Two out of five patients were registered for rehabilitation after OHCA. Conclusion The use of primary, specialist and mental healthcare services increased before OHCA and remained significantly higher the year after OHCA. Less than half of the patients surviving cardiac arrest were registered for rehabilitation.
Tjelmeland, Ingvild Beathe Myrhaugen; Wnent, Jan; Masterson, Siobhan; Kramer-Johansen, Jo; Ong, Marcus Eng Hock & Smith, Karen [Show all 14 contributors for this article] (2023). Did lockdown influence bystanders’ willingness to perform cardiopulmonary resuscitation? A worldwide registry-based perspective. Resuscitation. ISSN 0300-9572. doi: 10.1016/j.resuscitation.2023.109764. Full text in Research Archive
Petrovich, Polina; Berve, Per-Olav Stefferud; Roald, Borghild; Kongsgård, Håvard Wahl; Stray-Pedersen, Arne & Kramer-Johansen, Jo [Show all 7 contributors for this article] (2023). Injuries associated with mechanical chest compressions and active decompressions after out-of-hospital cardiac arrest: A subgroup analysis of non-survivors from a randomized study. Resuscitation Plus. ISSN 2666-5204. 13:100362, p. 1–7. doi: 10.1016/j.resplu.2023.100362. Full text in Research Archive
Guterud, Mona Marie; Bugge, Helge Fagerheim; Røislien, Jo; Larsen, Karianne; Eriksen, Erik & Mikkelsen, Martin Lerstang [Show all 10 contributors for this article] (2022). Interrater Agreement on National Institutes of Health Stroke Scale Between Paramedics and Stroke Physicians: Validation Study for the Digital Training Model in the Paramedic Norwegian Acute Stroke Prehospital Project. Journal of Medical Internet Research (JMIR) Neurotechnology. ISSN 2817-092X. 1(1). doi: 10.2196/39444.
Idland, Siri; Iversen, Emil; Brattebø, Guttorm; Kramer-Johansen, Jo & Hjortdahl, Magnus (2022). From hearing to seeing: medical dispatchers' experience with use of video streaming in medical emergency calls - a qualitative study. BMJ Open. ISSN 2044-6055. 12(12), p. 1–7. doi: 10.1136/bmjopen-2022-063395. Full text in Research Archive
Harring, Astrid Karina; Tjelmeland, Ingvild Beathe Myrhaugen; Andenæs, Randi & Kramer-Johansen, Jo (2022). Blir beslutninger om behandlingsbegrensninger respektert utenfor sykehus når man har ringt 113? Tidsskrift for omsorgsforskning. ISSN 2387-5976. 8, p. 1–13. doi: 10.18261/tfo.8.3.1. Full text in Research Archive
Fremstad, Kjell Otto; Lindenskov, Paal Helge H.; Ihle-Hansen, Hege; Jamtli, Bjørn; Kramer-Johansen, Jo & Hardeland, Camilla [Show all 8 contributors for this article] (2022). Veien inn til sykehus for pasienter innlagt ved mistanke om akutt hjerneslag. Sykepleien Forskning. ISSN 1890-2936. 17. doi: 10.4220/Sykepleienf.2022.89354. Full text in Research Archive
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), p. 1–8. doi: 10.1186/s12873-022-00624-6. Full text in Research Archive Show summary
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.
Tjelmeland, Ingvild Beathe Myrhaugen; Alm-Kruse, Kristin; Gräsner, Jan-Thorsten; Isern, Cecilie Benedicte; Jakisch, Barbara & Kramer-Johansen, Jo [Show all 9 contributors for this article] (2022). Importance of reporting survival as incidence: a cross-sectional comparative study on out-of-hospital cardiac arrest registry data from Germany and Norway . BMJ Open. ISSN 2044-6055. 12(2). doi: 10.1136/bmjopen-2021-058381. Full text in Research Archive
Isasi, Iraia; Alonso, Erik; Irusta, Unai; Aramendi, Elisabete; Zabihi, Morteza & Rad, Ali Bahrami [Show all 9 contributors for this article] (2021). A Machine Learning-Based Pulse Detection Algorithm for Use During Cardiopulmonary Resuscitation. Computing in cardiology. ISSN 2325-8861. 48. doi: 10.23919/CinC53138.2021.9662778.
Berve, Per-Olav Stefferud; Hardig, Bjarne Madsen; Skålhegg, Tore; Kongsgård, Håvard Wahl; Kramer-Johansen, Jo & Wik, Lars (2021). Mechanical active compression-decompression versus standard mechanical cardiopulmonary resuscitation: A randomised haemodynamic out-of-hospital cardiac arrest study. Resuscitation. ISSN 0300-9572. 170. doi: 10.1016/j.resuscitation.2021.10.026.
Niles, Dana N; Skaare, Christiane; Foglia, Elizabeth E; Insley, Elena; Cines, Courtney & Olasveengen, Theresa M. [Show all 11 contributors for this article] (2021). Effect of a positive pressure ventilation-refresher program on ventilation skill performance during simulated newborn resuscitation. Resuscitation Plus. ISSN 2666-5204. 5. doi: 10.1016/j.resplu.2021.100091. Full text in Research Archive
Alm-Kruse, Kristin; Tjelmeland, Ingvild Beathe Myrhaugen; Kongsgård, Håvard Wahl; Kvåle, Rune & Kramer-Johansen, Jo (2021). Case completeness in the Norwegian Cardiac Arrest Registry. Resuscitation Plus. ISSN 2666-5204. 8, p. 1–7. doi: 10.1016/j.resplu.2021.100182. Full text in Research Archive
Berve, Per-Olav Stefferud; Irusta, Unai; Kramer-Johansen, Jo; Skålhegg, Tore; Aramendi, Elisabete & Wik, Lars (2021). Tidal volume measurements via transthoracic impedance waveform characteristics: The effect of age, body mass index and gender. A single centre interventional study. Resuscitation. ISSN 0300-9572. 167, p. 218–224. doi: 10.1016/j.resuscitation.2021.08.041.
Hardeland, Camilla; Claesson, Andreas; Blom, Marieke T; Blomberg, Stig Nikolaj Fasmer; Folke, Fredrik & Hollenberg, Jacob [Show all 14 contributors for this article] (2021). Description of call handling in emergency medical dispatch centres in Scandinavia: recognition of out-of-hospital cardiac arrests and dispatcher-assisted CPR. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. doi: 10.1186/s13049-021-00903-4. Full text in Research Archive
Alm-Kruse, Kristin; Sørensen, Gro; Osbakk, Svein Are; Sunde, Kjetil; Bendz, Bjørn & Andersen, Geir Øystein [Show all 9 contributors for this article] (2021). Outcome in refractory out-of-hospital cardiac arrest before and after implementation of an ECPR protocol. Resuscitation. ISSN 0300-9572. doi: 10.1016/j.resuscitation.2021.01.038. Full text in Research Archive
Oving, Iris; de Graaf, Corina; Karlsson, Lena; Jonsson, Martin; Kramer-Johansen, Jo & Berglund, Ellinor [Show all 17 contributors for this article] (2020). Occurrence of shockable rhythm in out-of-hospital cardiac arrest over time: A report from the COSTA group. Resuscitation. ISSN 0300-9572. 151, p. 67–74. doi: 10.1016/j.resuscitation.2020.03.014. Full text in Research Archive
Lasa, Haizea; Irusta, Unai; Eftestøl, Trygve Christian; Aramendi, Elisabete; Rad, Ali Bahrami & Kramer-Johansen, Jo [Show all 7 contributors for this article] (2020). Multimodal biosignal analysis algorithm for the classification of cardiac rhythms during resuscitation. Computing in cardiology. ISSN 2325-8861. 47. doi: 10.22489/CinC.2020.347. Full text in Research Archive Show summary
Session S52, ID 347 - Multimodal Biosignal Analysis Algorithm for the Classification of Cardiac Rhythms During Resuscitation Haizea Lasa1, Unai Irusta2, Trygve Eftestøl3, Elisabete Aramendi2, Ali Bahrami Rad4, Jo Kramer-Johansen5, Lars Wik5 1University of the Basque Country (UPV/EHU), 2UPV/EHU, 3University of Stavanger, 4Emory University, 5Oslo University Hospital
Eftestøl, Trygve Christian; Stokka, Svein Erik; Kvaløy, Jan Terje; Rad, Ali Bahrami; Irusta, Unai & Aramendi, Elisabete [Show all 11 contributors for this article] (2020). A probabilistic function to model the relationship between quality of chest compressions and the physiological response for patients in cardiac arrest. Computing in cardiology. ISSN 2325-8861. 47. doi: 10.22489/CinC.2020.073. Full text in Research Archive
Isasi, Iraia; Irusta, Unai; Aramendi, Elisabete; Eftestøl, Trygve Christian; Kramer-Johansen, Jo & Wik, Lars (2020). Rhythm Analysis during Cardiopulmonary Resuscitation Using Convolutional Neural Networks. Entropy. ISSN 1099-4300. 22(6). doi: 10.3390/e22060595. 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
Tjelmeland, Ingvild Beathe Myrhaugen; Alm-Kruse, Kristin; Andersson, Lars-Jøran; Bratland, Ståle; Hafstad, Arne Ketil & Haug, Bjørn [Show all 14 contributors for this article] (2020). Cardiac arrest as a reportable condition: A cohort study of the first 6 years of the Norwegian out-of-hospital cardiac arrest registry. BMJ Open. ISSN 2044-6055. 10(7), p. 1–7. doi: 10.1136/bmjopen-2020-038133. Full text in Research Archive
Berve, Per-Olav Stefferud; Irusta, Unai; Kramer-Johansen, Jo; Skålhegg, Tore; Kongsgård, Håvard Wahl & Brunborg, Cathrine [Show all 8 contributors for this article] (2019). Transthoracic impedance measured with defibrillator pads—New interpretations of signal change induced by ventilations. Journal of Clinical Medicine. ISSN 2077-0383. 8(5). doi: 10.3390/jcm8050724. Full text in Research Archive
Isasi, Iraia; Irusta, Unai; Elola, Andoni; Aramendi, Elisabete; Eftestøl, Trygve Christian & Kramer-Johansen, Jo [Show all 7 contributors for this article] (2019). A Robust Machine Learning Architecture for a Reliable ECG Rhythm Analysis during CPR . IEEE Engineering in Medicine and Biology Society. Conference Proceedings. ISSN 1557-170X. p. 1903–1907. doi: 10.1109/EMBC.2019.8856784.
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), p. 1306–1312. doi: 10.1111/aas.13447. Full text in Research Archive
Isasi, Iraia; Irusta, Unai; Rad, Ali Bahrami; Aramendi, Elisabete; Zabihi, Morteza & Eftestøl, Trygve Christian [Show all 8 contributors for this article] (2019). Automatic Cardiac Rhythm Classification With Concurrent Manual Chest Compressions . IEEE Access. ISSN 2169-3536. 7, p. 115147–1151159. doi: 10.1109/ACCESS.2019.2935096. Full text in Research Archive
Picon, Artzai; Irusta, Unai; Alvarez-Gila, Aitor; Aramendi, Elisabete; Alonso-Atienza, Felipe & Figuera, Carlos [Show all 11 contributors for this article] (2019). Mixed convolutional and long short-term memory network for the detection of lethal ventricular arrhythmia. PLOS ONE. ISSN 1932-6203. 14(5), p. 1–22. doi: 10.1371/journal.pone.0216756. Full text in Research Archive
Isasi, Iraia; Irusta, Unai; Elola, Andoni; Aramendi, Elisabete; Ayala, Unai & Alonso, Erik [Show all 8 contributors for this article] (2019). A Machine Learning Shock Decision Algorithm for use during Piston-driven Chest Compressions . IEEE Transactions on Biomedical Engineering. ISSN 0018-9294. 66(6), p. 1752–1760. doi: 10.1109/TBME.2018.2878910.
Isasi, Iraia; Irusta, Unai; Aramendi, Elisabete; Ayala, Unai; Alonso, Erik & Kramer-Johansen, Jo [Show all 7 contributors for this article] (2019). A Multistage Algorithm for ECG Rhythm Analysis During Piston-Driven Mechanical Chest Compressions. IEEE Transactions on Biomedical Engineering. ISSN 0018-9294. 66(1), p. 263–272. doi: 10.1109/TBME.2018.2827304.
Zijlstra, Jolande A; Koster, Rudolph W.; Blom, Marieke T; Lippert, Freddy K; Svensson, Leif & Herlitz, Johan [Show all 20 contributors for this article] (2018). Different defibrillation strategies in survivors after out-of-hospital cardiac arrest. Heart. ISSN 1355-6037. 104(23), p. 1929–1936. doi: 10.1136/heartjnl-2017-312622.
Isasi, Iraia; Irusta, Unai; Aramendi, Elisabete; Ayala, Unai; Alonso, Erik & Kramer-Johansen, Jo [Show all 7 contributors for this article] (2018). An Accurate Shock Advise Algorithm for Use During Piston-Driven Chest Compressions. Computing in cardiology. ISSN 2325-8861. 45. doi: 10.22489/CinC.2018.20.
Isasi, Iraia; Rad, Ali Bahrami; Irusta, Unai; Zabihi, Morteza; Aramendi, Elisabete & Eftestøl, Trygve Christian [Show all 8 contributors for this article] (2018). ECG Rhythm Analysis during Manual Chest compressions using an Artefact Removal Filter and Random Forest Classifiers. Computing in cardiology. ISSN 2325-8861. 45. doi: 10.22489/CinC.2018.202.
Skaare, Christiane; Boldingh, Anne Marthe; Kramer-Johansen, Jo; CALISCH, TOR EINAR; Nakstad, Britt & Nadkarni, Vinay [Show all 8 contributors for this article] (2018). Video performance-debriefings and ventilation-refreshers improve quality of neonatal resuscitation. Resuscitation. ISSN 0300-9572. p. 1–7. doi: 10.1016/j.resuscitation.2018.07.013. Full text in Research Archive
Ringh, M.; Hollenberg, J.; Palsgaard-Moeller, T.; Svensson, L.; Rosenqvist, Mikael & Lippert, FK [Show all 20 contributors for this article] (2018). The challenges and possibilities of public access defibrillation. Journal of Internal Medicine. ISSN 0954-6820. 283(3), p. 238–256. doi: 10.1111/joim.12730. Full text in Research Archive
Skaare, Christiane; CALISCH, TOR EINAR; Sæter, Erik; Rajka, Thomas; Boldingh, Anne Marthe & Nakstad, Britt [Show all 9 contributors for this article] (2018). Implementation and effectiveness of a video-based debriefing programme for neonatal resuscitation. Acta Anaesthesiologica Scandinavica. ISSN 0001-5172. 62(3), p. 394–403. doi: 10.1111/aas.13050. Full text in Research Archive
Steinberg, Mikkel Torp; Olsen, Jan Åge; Eriksen, Morten; Neset, Andres; Norseng, Per Andreas & Kramer-Johansen, Jo [Show all 8 contributors for this article] (2018). Haemodynamic outcomes during piston-based mechanical CPR with or without active decompression in a porcine model of cardiac arrest. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 26:31, p. 1–10. doi: 10.1186/s13049-018-0496-z. Full text in Research Archive
Rad, Ali Bahrami; Eftestøl, Trygve Christian; Irusta, Unai; Kvaløy, Jan Terje; Wik, Lars & Kramer-Johansen, Jo [Show all 8 contributors for this article] (2018). An automatic system for the comprehensive retrospective analysis of cardiac rhythms in resuscitation episodes. Resuscitation. ISSN 0300-9572. 122, p. 6–12. doi: 10.1016/j.resuscitation.2017.11.035. Full text in Research Archive
Isasi, Iraia; Irusta, Unai; Aramendi, Elisabete; Ayala, Unai; Alonso, Erik & Kramer-Johansen, Jo [Show all 7 contributors for this article] (2017). Removing Piston-driven Mechanical Chest Compression Artefacts from the ECG. Computing in cardiology. ISSN 2325-8861. 44. doi: 10.22489/CinC.2017.009-115.
Niles, Dana E.; Nishisaki, Akira; Sutton, Robert M.; Elci, Okan U.; Meaney, Peter A. & O'Connor, Kathleen A. [Show all 10 contributors for this article] (2017). Improved retention of chest compression psychomotor skills with brief "rolling refresher" training. Simulation in Healthcare: The Journal of the Society for Simulation in Healthcare. ISSN 1559-2332. 12(4), p. 213–219. doi: 10.1097/SIH.0000000000000228.
Rad, Ali Bahrami; Eftestøl, Trygve Christian; Engan, Kjersti; Irusta, Unai; Kvaløy, Jan Terje & Kramer-Johansen, Jo [Show all 8 contributors for this article] (2017). ECG-Based classification of resuscitation cardiac rhythms for retrospective data analysis. IEEE Transactions on Biomedical Engineering. ISSN 0018-9294. 64(10), p. 2411–2418. doi: 10.1109/TBME.2017.2688380.
Niles, Dana E.; Cines, Courtney; Insley, Elena; Foglia, Elizabeth E; Elci, Okan U. & Skaare, Christiane [Show all 11 contributors for this article] (2017). Incidence and characteristics of positive pressure ventilation delivered to newborns in a US tertiary academic hospital. Resuscitation. ISSN 0300-9572. 115, p. 102–109. doi: 10.1016/j.resuscitation.2017.03.035.
Hardeland, Camilla; Skaare, Christiane; Kramer-Johansen, Jo; Birkenes, Tonje Søraas; Myklebust, Helge & Hansen, Andreas [Show all 8 contributors for this article] (2017). Targeted simulation and education to improve cardiac arrest recognition and telephone assisted CPR in an emergency medical communication centre. Resuscitation. ISSN 0300-9572. 114, p. 21–26. doi: 10.1016/j.resuscitation.2017.02.013.
Skaare, Christiane; Boldingh, Anne Marthe; Nakstad, Britt; CALISCH, TOR EINAR; Niles, Dana E. & Nadkarni, Vinay M. [Show all 8 contributors for this article] (2016). Ventilation fraction during the first 30s of neonatal resuscitation. Resuscitation. ISSN 0300-9572. 107, p. 25–30. doi: 10.1016/j.resuscitation.2016.07.231.
Alm-Kruse, Kristin; Kramer-Johansen, Jo & Bogstrand, Stig Tore (2016). Registrerer få hjertestanser. Sykepleien Forskning. ISSN 1890-2936. doi: 10.4220/Sykepleienf.2016.58523. Full text in Research Archive Show summary
Bakgrunn: Studier fra andre land viser stor variasjon i forekomst og overlevelse etter hjerte- lunge-redning (HLR) på intensivavdelinger. Det foreligger få studier på dette området i Norge. Hensikt: Å kartlegge forekomst og overlevelse etter HLR samt få oversikt over hvordan HLR ble registrert. Metode: Vi foretok en tverrsnittsstudie av 14 intensivavdelinger på Oslo universitetssykehus gjennom hele 2013. Pasienter med diagnoser og prosedyrekoder for hjertestans, ventrikkelarytmier og HLR ble identifisert i pasientadministrative systemer. Vi inkluderte alle tilfellene der diagnoser og prosedyrekoder ble bekreftet i pasientjournalen, i studieutvalget. Deretter sammenliknet vi med de tilfellene som var registrert i det interne kvalitetsregisteret for hjertestans. Resultat: Blant 15 101 intensivinnleggelser fant vi 117 (0,8 prosent) tilfeller av HLR fordelt på 99 pasienter. Av 91 voksne (> 18 år) var 64 (70 prosent) menn. Gjennomsnittsalderen var 63 år. Antall voksne som overlevde til utskrivning fra sykehuset var 44 (48 prosent). Overlevelsen for kvinner var signifikant lavere enn for menn: 8 (30 prosent) kvinner overlevde mot 36 (56 prosent) menn, (p = 0,023). Kun 32 (32 prosent) av alle pasientene var registrert i vårt interne hjertestansregister. Konklusjon: Knapt én av hundre intensivinnleggelser fikk HLR. Halvparten av pasientene overlevde til utskrivning etter HLR. En tredjedel av disse pasientene var registrert i det interne hjertestansregisteret. Forekomst og registrering av HLR er lav, mens overlevelsen er høy sammenliknet med tilsvarende studier fra andre land.
Figuera, Carlos; Irusta, Unai; Morgado, Eduardo; Aramendi, Elisabete; Ayala, Unai & Wik, Lars [Show all 9 contributors for this article] (2016). Machine learning techniques for the detection of shockable rhythms in automated external defibrillators. PLOS ONE. ISSN 1932-6203. 11:e0159654(7). doi: 10.1371/journal.pone.0159654.
Nestaas, Sverre; STENSÆTH, KNUT-HAAKON; Rosseland, Vigdis & Kramer-Johansen, Jo (2016). Radiological assessment of chest compression point and achievable compression depth in cardiac patients. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 24(54). doi: 10.1186/s13049-016-0245-0. Full text in Research Archive
Rad, Ali Bahrami; Engan, Kjersti; Katsaggelos, Aggelos K.; Kvaløy, Jan Terje; Wik, Lars & Kramer-Johansen, Jo [Show all 8 contributors for this article] (2016). Automatic cardiac rhythm interpretation during resuscitation. Resuscitation. ISSN 0300-9572. 102, p. 44–50. doi: 10.1016/j.resuscitation.2016.01.015.
Grusd, Eystein & Kramer-Johansen, Jo (2016). Does the Norwegian emergency medical dispatch classification as non-urgent predict no need for pre-hospital medical treatment? An observational study. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 24(65). doi: 10.1186/s13049-016-0258-8. Full text in Research Archive Show summary
Background: The number of ambulance call-outs in Norway is increasing owing to societal changes and increased demand from the public. Together with improved but more expensive education of ambulance staff, this leads to increased costs and staffing shortages. We wanted to study whether the current dispatch triage tools could reliably identify patients who only required transport, and not pre-hospital medical care. This could allow selection of such patients for designated transport units, freeing up highly trained ambulance staff to attend patients in greater need. Methods: A cross-sectional observational study was used, drawing on all electronic and paper records in our ambulance service from four random days in 2012. The patients were classified into acuity groups, based on Emergency Medical Dispatch codes, and pre-hospital interventions were extracted from the Patient Report Forms. Results: Of the 1489 ambulance call-outs included in this study, 82 PRFs (5 %) were missing. A highly significant association was found between acuity group and recorded pre-hospital intervention (p ≤ 0.001). We found no correlation between gender, distance to hospital, age and pre-hospital interventions. Ambulances staffed by paramedics performed more interventions (234/917, 26 %) than those with emergency medical technicians (42/282, 15 %). The strongest predictor for needing pre-hospital interventions was found to be the emergency medical dispatch acuity descriptor. Discussion: This study has demonstrated that the Norwegian dispatch system is able to correctly identify patients who do not need pre-hospital interventions. Patients with a low acuity code had a very low level of pre-hospital interventions. Evaluation of adherence to protocol in the Emergency Medical Dispatch is not possible due to the inherent need for medical experience in the triage process. Conclusions: This study validates the Norwegian dispatch tool (Norwegian index) as a predictor of patients who do not need pre-hospital interventions.
Aramendi, Elisabete; Irusta, U; Ayala, Unai; Naas, Henning; Kramer-Johansen, Jo & Eftestøl, Trygve Christian (2016). Filtering mechanical chest compression artefacts from out-of-hospital cardiac arrest data. Resuscitation. ISSN 0300-9572. 98, p. 41–47. doi: 10.1016/j.resuscitation.2015.10.012.
Birkenes, Tonje Søraas; Myklebust, Helge; Hardeland, Camilla; Kramer-Johansen, Jo; Hock Ong, Marcus Eng & Shin, Sang Do [Show all 8 contributors for this article] (2015). HOW to train for telephone-CPR. Trends in Anaesthesia and Critical Care. ISSN 2210-8440. 5(5), p. 124–129. doi: 10.1016/j.tacc.2015.07.003.
Gundersen, Kenneth; Kvaløy, Jan Terje; Eftestøl, Trygve & Kramer-Johansen, Jo (2015). Modelling ventricular fibrillation coarseness during cardiopulmonary resuscitation by mixed effects stochastic differential equations. Statistics in Medicine. ISSN 0277-6715. 34(23), p. 3159–3169. doi: 10.1002/sim.6539.
Skaare, Christiane; Kramer-Johansen, Jo; STEEN, THORBJØRN; Ødegaard, Silje; Niles, Dana E. & Nakstad, Britt [Show all 9 contributors for this article] (2015). Incidence of newborn stabilization and resuscitation measures and guideline compliance during the first minutes of life in Norway. Neonatology. ISSN 1661-7800. 108(2), p. 100–107. doi: 10.1159/000431075.
Gonzalez-Otero, Digna M.; Ruiz de Gauna, Sofia; Ruiz, Jesus; Daya, Mohamud R.; Wik, Lars & Russell, James K. [Show all 10 contributors for this article] (2015). Chest compression rate feedback based on transthoracic impedance. Resuscitation. ISSN 0300-9572. 93, p. 82–88. doi: 10.1016/j.resuscitation.2015.05.027.
Ayala, U.; Irusta, U; Ruiz, J.; Ruiz de Gauna, S.; Gonzalez-Otero, D & Alonso, E [Show all 9 contributors for this article] (2015). Fully automatic rhythm analysis during chest compression pauses. Resuscitation. ISSN 0300-9572. 89, p. 25–30. doi: 10.1016/j.resuscitation.2014.11.022.

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Steenstrup, Sophie; Kramer-Johansen, Jo & Berge, Hilde Moseby (2024). Saving lives together in sport, part two: A pilot study to increase the number and availability of automated external defibrillators at Norwegian football arenas.
Steenstrup, Sophie; Kramer-Johansen, Jo & Berge, Hilde Moseby (2024). Saving lives together in sport, part one: Initiating voluntary training in cardiopulmonary resuscitation with the use of automated external defibrillators in Norwegian football clubs.
Harring, Astrid Karina; Tjelmeland, Ingvild Beathe Myrhaugen & Kramer-Johansen, Jo (2024). Kritisk informasjon: HLR- i Kjernejournal.
Katzenschlager, Stephan; Kelpanides, Inga Katherina; Skogvoll, Eirik; Grindheim, Guro; Wnent, Jan & Popp, Erik [Show all 10 contributors for this article] (2023). Paediatric out-of-hospital cardiac arrest: Time to update registries? Critical Care. ISSN 1364-8535. 27(1). doi: 10.1186/s13054-023-04582-8.
Bjørshol, Conrad Arnfinn; Nordseth, Trond & Kramer-Johansen, Jo (2023). Why the Norwegian 2021 guideline for basic life support are different. Resuscitation Plus. ISSN 2666-5204. 14. doi: 10.1016/j.resplu.2023.100392. Full text in Research Archive
Harring, Astrid Karina V.; Tjelmeland, Ingvild Beathe Myrhaugen & Kramer-Johansen, Jo (2023). HLR til pasienter med «HLR minus». Ambulanseforum. ISSN 0800-6423.
Alm-Kruse, Kristin; Tjelmeland, Ingvild Beathe Myrhaugen; Reiner, Andrew Henry & Kramer-Johansen, Jo (2022). The use of primary healthcare on the day of out-of-hospital cardiac arrest -and the association with 30-days survival. Resuscitation. ISSN 0300-9572. 175. doi: 10.1016/S0300-9572(22)00383-5.
Bugge, Helge Fagerheim; Guterud, Mona; Bache, Kristi Cecilie Grønvold; Braarud, Anne-Cathrine ; Eriksen, Erik & Fremstad, Kjell Otto [Show all 15 contributors for this article] (2022). Paramedic Norwegian Acute Stroke Prehospital Project (ParaNASPP) study protocol: a stepped wedge randomised trial of stroke screening using the National Institutes of Health Stroke Scale in the ambulance. Trials. ISSN 1745-6215. 23(1). doi: 10.1186/s13063-022-06006-4. Full text in Research Archive
Tjelmeland, Ingvild B M; Wnent, Jan; Masterson, Siobhan; Kramer-Johansen, Jo & Gräsner, Jan-Thorsten (2021). Protocol for a cohort study of the impact of the COVID-19 pandemic on the rate and incidence of bystander cardiopulmonary resuscitation (CPR) after out-of-hospital cardiac arrest. Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. ISSN 1757-7241. 29(1), p. 1–5. doi: 10.1186/s13049-021-00890-6. Full text in Research Archive
Harring, Astrid Karina V.; Kramer-Johansen, Jo & Tjelmeland, Ingvild B M (2021). Comparing survival and neurological outcome of the elderly suffering out-of-hospital cardiac arrest at home and in healthcare institutions .
Bjørshol, Conrad Arnfinn & Kramer-Johansen, Jo (2020). Survival and neurological outcome: Search for a low-hanging fruit. Resuscitation. ISSN 0300-9572. 148, p. 269–270. doi: 10.1016/j.resuscitation.2020.01.012.
Eftestøl, Trygve Christian; Stokka, Svein Erik; Kvaløy, Jan Terje; Rad, Ali Bahrami; Irusta, Unai & Aramendi, Elisabete [Show all 11 contributors for this article] (2020). A probabilistic function to model the relationship between quality of chest compressions and the physiological response for patients in cardiac arrest.
Harring, Astrid Karina; Tjelmeland, Ingvild B. & Kramer-Johansen, Jo (2020). Survival and outcome after out of hospital cardiac arrests in the elderly in Norwegian healthcare institutions.
Harring, Astrid Karina; Tjelmeland, Ingvild B. & Kramer-Johansen, Jo (2020). Resuscitation of the elderly in Norwegian healthcare institutions: Why does EMS withhold or withdraw CPR?
Tjelmeland, Ingvild Beathe Myrhaugen; Larsen, Morten; Skogvoll, Eirik & Kramer-Johansen, Jo (2019). What is the real incidence of out-of-hospital cardiac arrest (OHCA) in Norway.
Bjørshol, Conrad Arnfinn; Jamtli, Bjørn; Kramer-Johansen, Jo; Myklebust, Helge; Olsen, Steinar & Nordseth, Trond [Show all 10 contributors for this article] (2019). Sammen redder vi liv. Tidsskrift for Den norske legeforening. ISSN 0029-2001. 139(12), p. 1142–1144. doi: 10.4045/tidsskr.19.0128.
Hardeland, Camilla; Claesson, Andreas; Blomberg, Stig Nikolaj Fasmer; Folke, Fredrik; Hollenberg, Jacob & Kramer-Johansen, Jo [Show all 13 contributors for this article] (2019). Differences in out-of-hospital cardiac arrest emergency dispatch recognition and dispatcher assisted cpr instructions – a Scandinavian multicentre study. Resuscitation. ISSN 0300-9572.
Alm-Kruse, Kristin; Sunde, Kjetil; Sørensen, Gro; Andersen, Geir Øystein; Osbakk, Svein Are & Kramer-Johansen, Jo (2018). Outcome in potential candidates for extracorporeal cardiopulmonary resuscitation after refractory out-of-hospital cardiac arrest treated with conventional advanced life support . Resuscitation. ISSN 0300-9572. 130. doi: 10.1016/j.resuscitation.2018.07.352.
Eftestøl, Trygve Christian; Stokka, Svein Erik; Kvaløy, Jan Terje; Rad, Ali Bahrami; Irusta, Unai & Aramendi, Elisabete [Show all 11 contributors for this article] (2018). A machine learning approach to model a probabilistic relationship between parameters reflecting quality of chest compressions and physiological response during out-of-hospital cardiopulmonary resuscitation.
Isern, Cecilie Benedicte; Tjelmeland, Ingvild Beathe Myrhaugen; Kramer-Johansen, Jo & Berge, Hilde Moseby (2018). Is media search a reliable source when investigating the incidence of sports-related out-of-hospital cardiac arrest? . Resuscitation. ISSN 0300-9572. 130, p. e95–e96.
Isern, Cecilie Benedicte; Tjelmeland, Ingvild Beathe Myrhaugen; Kramer-Johansen, Jo & Berge, Hilde Moseby (2018). Is media search a reliable source when investigating the incidence of sports-related out-of-hospital cardiac arrest? .
Isern, Cecilie Benedicte; Tjelmeland, Ingvild Beathe Myrhaugen; Alm-Kruse, Kristin; Berge, Eivind; Kramer-Johansen, Jo & Berge, Hilde Moseby (2018). Forekomst av hjertestans i forbindelse med trening - en sammenligning av funn fra media og Hjertestansregisteret .
Gilbert, mads; Wisborg, Torben; Steen-Hansen, Jon Erik; Tjelmeland, Ingvild; Kramer-Johansen, Jo & Bakke, Håkon Kvåle (2018). Folk tar ansvar, ikke selfier! NRK Ytring.
Tjelmeland, Ingvild; Hardeland, Camilla; Mydske-Earl, Kristine; Bakkelund, Karin Elvenes; Johnsen, Knut Roar & Skogvoll, Eirik [Show all 7 contributors for this article] (2018). How to find all out-of-hospital cardiac arrests (OHCA) that fill the inclusion criteria in the Norwegian cardiac arrest registry. Resuscitation. ISSN 0300-9572. 130, p. e17–e17. doi: 10.1016/j.resuscitation.2018.07.340.
Isern, Cecilie Benedicte; Berge, Hilde Moseby; Kramer-Johansen, Jo & Berge, Eivind (2017). How to increase knowledge about sport-related sudden cardiac arrest in Norway.
Hardeland, Camilla; Soilammi, Linda Christina; Skaare, Christiane; Kramer-Johansen, Jo; Birkenes, Tonje & Myklebust, Helge [Show all 8 contributors for this article] (2015). Targeted Simulation and Education to Improve Cardiac Arrest Recognition and Telephone Cpr in an Emergency Medical Dispatch Centre. Circulation. ISSN 0009-7322. 132.
Skaare, Christiane; Olasveengen, Theresa Mariero; Kramer-Johansen, Jo; Nordum, Fredrik; Eriksen, Morten & Norseng, Per Andreas [Show all 8 contributors for this article] (2015). Hemodynamic effects of guideline-compliant asynchronous vs. synchronous ventilations during cardiopulmonary resuscitation in a porcine model. Circulation. ISSN 0009-7322. 132.
Skaare, Christiane; Kramer-Johansen, Jo; CALISCH, TOR EINAR; Niles, Dana E.; Boldingh, Anne Marthe & Nakstad, Britt [Show all 8 contributors for this article] (2015). Video Based Debriefings Improves Neonatal Resuscitation. Resuscitation. ISSN 0300-9572. 96, p. 35–36.
Skaare, Christiane; Kramer-Johansen, Jo; CALISCH, TOR EINAR; Niles, Dana E.; Boldingh, Anne Marthe & Nakstad, Britt [Show all 8 contributors for this article] (2015). Video Based Debriefings Improves Neonatal Resuscitation.
Kramer-Johansen, Jo (2015). Peeking from the blindfold. Resuscitation. ISSN 0300-9572. 96, p. A3–A4. doi: 10.1016/j.resuscitation.2015.07.012.
Olasveengen, Theresa M.; Prescott, Robin J & Kramer-Johansen, Jo (2015). Impedance threshold device (ITD) during cardiac arrest - Does it work or not? Resuscitation. ISSN 0300-9572. 94, p. A3–A4. doi: 10.1016/j.resuscitation.2015.07.006.
Olasveengen, Theresa M. & Kramer-Johansen, Jo (2015). Insight into the black hole currently characterizing the initial post arrest phase. Resuscitation. ISSN 0300-9572. 87, p. A3–A4. doi: 10.1016/j.resuscitation.2014.11.024.

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Published Sep. 16, 2013 11:00 AM - Last modified Nov. 15, 2021 12:04 PM

Research groups

Prehospital Research Group