Helle Collatz Christensen

Helle Collatz Christensen

Clinical Associate Professor

Member of:

  • Emergency Medicine


Publication year:
All
1 - 25 out of 81Page size: 25
  1. 2024
  2. Published

    Ambulance response times and 30-day mortality: a Copenhagen (Denmark) registry study

    Mills, A. A. M., Mills, E. H. A., Blomberg, S. N. F., Christensen, Helle Collatz, Møller, Amalie Lykkemark, Gislason, Gunnar Hilmar, Køber, Lars Valeur, Kragholm, K. H., Lippert, F., Folke, F., Andersen, M. P. & Torp-Pedersen, Christian, 2024, In: European Journal of Emergency Medicine. 31, 1, p. 59-67 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  3. Published

    Association Between Defibrillation Using LIFEPAK 15 or ZOLL X Series and Survival Outcomes in Out-of-Hospital Cardiac Arrest: A Nationwide Cohort Study

    Meilandt, C., Qvortrup, M., Bøtker, M. T., Folke, Fredrik, Borup, L., Christensen, Helle Collatz, Milling, L., Lauridsen, K. G. & Løfgren, B., 2024, In: Journal of the American Heart Association. 13, 7, 9 p., e033913.

    Research output: Contribution to journal › Journal article › Research › peer-review

  4. Published

    Association between mortality and phone-line waiting time for non-urgent medical care: A Danish registry-based cohort study

    Mills, E. H. A., Møller, Amalie Lykkemark, Gnesin, Filip Jurijevitj, Zylyftari, N., Jensen, B., Christensen, Helle Collatz, Blomberg, S. N., Kragholm, K. H., Gislason, Gunnar Hilmar, Køber, Lars Valeur, Gerds, Thomas Alexander, Folke, Fredrik, Lippert, F., Torp-Pedersen, Christian & Andersen, M. P., 2024, In: European Journal of Emergency Medicine. 31, 2, p. 127-135 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  5. Published

    Characteristics and critical care interventions in drowning patients treated by the Danish Air Ambulance from 2016 to 2021: a nationwide registry-based study with 30-day follow-up

    Breindahl, N., Wolthers, S. A., Møller, T. P., Blomberg, S. N. F., Steinmetz, Jacob & Christensen, Helle Collatz, 2024, In: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. 32, 11 p., 17.

    Research output: Contribution to journal › Journal article › Research › peer-review

  6. Accepted/In press

    Emergency Medical Services dispatcher recognition of stroke: A systematic review

    Wenstrup, J., Hestoy, B. H., Sagar, M. V., Blomberg, S. N. F., Christensen, H., Christensen, Helle Collatz & Kruuse, Christina Rostrup, 2024, (Accepted/In press) In: European Stroke Journal. 2 p.

    Research output: Contribution to journal › Review › Research › peer-review

  7. Published

    Foreign body airway obstruction resulting in out-of-hospital cardiac arrest in Denmark – Incidence, survival and interventions

    Wolthers, S. A., Holgersen, M. G., Jensen, J. T., Andersen, M. P., Blomberg, S. N. F., Mikkelsen, S., Christensen, Helle Collatz & Jensen, T. W., 2024, In: Resuscitation. 198, 8 p., 110171.

    Research output: Contribution to journal › Journal article › Research › peer-review

  8. Published

    Prodromal complaints and 30-day survival after emergency medical services-witnessed out-of-hospital cardiac arrest

    Larsen, M. B., Blom-Hanssen, E., Gnesin, Filip Jurijevitj, Kragholm, K. H., Lass Klitgaard, T., Christensen, Helle Collatz, Lippert, F., Folke, Fredrik, Torp-Pedersen, Christian & Ringgren, K. B., 2024, In: Resuscitation. 197, 7 p., 110155.

    Research output: Contribution to journal › Journal article › Research › peer-review

  9. Published

    The Danish Nationwide Electrocardiogram (ECG) Cohort

    Polcwiartek, C., Andersen, M. P., Christensen, Helle Collatz, Torp-Pedersen, Christian, Sørensen, Kathrine Kold, Kragholm, K. & Graff, C., 2024, In: European Journal of Epidemiology. 39, p. 325–333 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  10. 2023
  11. Published

    Kunstig intelligens kommer ikke nødvendigvis patienter til gode

    Holm, Sune Hannibal, Blomberg, S. N., Christensen, Helle Collatz & Duedder, Boris, 12 Jun 2023, In: Berlingske. p. 20-21 2 p.

    Research output: Contribution to journal › Contribution to newspaper - Comment/debate › Communication

  12. Published

    "I just haven't experienced anything like this before": A qualitative exploration of callers' interpretation of experienced conditions in telephone consultations preceding a myocardial infarction

    Jensen, B., Vardinghus-Nielsen, H., Mills, E. H. A., Møller, Amalie Lykkemark, Gnesin, Filip Jurijevitj, Zylyftari, N., Kragholm, K., Folke, Fredrik, Christensen, Helle Collatz, Blomberg, S. N., Torp-Pedersen, Christian & Bøggild, H., 2023, In: Patient Education and Counseling. 109, 1 p., 107643.

    Research output: Contribution to journal › Journal article › Research › peer-review

  13. Published

    A retrospective study on machine learning-assisted stroke recognition for medical helpline calls

    Wenstrup, J., Havtorn, J. D., Borgholt, L., Blomberg, S. N., Maaloe, L., Sayre, M. R., Christensen, H., Kruuse, Christina Rostrup & Christensen, Helle Collatz, 2023, In: npj Digital Medicine. 6, 1, 8 p., 235.

    Research output: Contribution to journal › Journal article › Research › peer-review

  14. Published

    AED applied, not recommending defibrillation – A validation study of the new variable AED in the Danish Cardiac Arrest Registry

    Casarini, E., Wolthers, S. A., Ringgren, K. B., Blomberg, S. N. F. & Christensen, Helle Collatz, 2023, In: Resuscitation. 186, 109725.

    Research output: Contribution to journal › Journal article › Research › peer-review

  15. Published

    All-cause mortality among Danish nursing home residents before and during the COVID-19 pandemic: a nationwide cohort study

    Andersen, M. P., Mills, E. H. A., Meddis, Alessandra, Sørensen, Kathrine Kold, Butt, J. H., Køber, Lars Valeur, Poulsen, Henrik Enghusen, Phelps, M., Gislason, Gunnar Hilmar, Christensen, Helle Collatz, Schou, Morten, Fosbøl, E. L., Gerds, Thomas Alexander, Kragholm, K. & Torp-Pedersen, Christian, 2023, In: European Journal of Epidemiology. 38, p. 523–531 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  16. Published

    Association between using a prehospital assessment unit and hospital admission and mortality: a matched cohort study

    Wolthers, S. A., Blomberg, S. N. F., Breindahl, N., Anjum, S., Hägi-Pedersen, Daniel, Ersbøll, A., Andersen, L. B. & Christensen, Helle Collatz, 2023, In: BMJ Open. 13, 9, 9 p., e075592.

    Research output: Contribution to journal › Journal article › Research › peer-review

  17. Published

    Association of intraosseous and intravenous access with patient outcome in out-of-hospital cardiac arrest

    Nilsson, F. N., Bie-Bogh, S., Milling, L., Hansen, P. M., Pedersen, H., Christensen, E. F., Knudsen, J. S., Christensen, Helle Collatz, Folke, Fredrik, Høen-Beck, D., Væggemose, U., Brøchner, A. C. & Mikkelsen, S., 2023, In: Scientific Reports. 13, 1, 7 p., 20796.

    Research output: Contribution to journal › Journal article › Research › peer-review

  18. Published

    Associations between emergency call stroke triage and pre-hospital delay, primary hospital admission, and acute reperfusion treatment among early comers with acute ischemic stroke

    Gude, M. F., Valentin, J. B., Christensen, Helle Collatz, Mikkelsen, S., Søvsø, M. B., Andersen, G., Kirkegaard, H. & Johnsen, S. P., 2023, In: Internal and Emergency Medicine. 18, p. 2355–2365 11 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  19. Published

    Danish Drowning Formula for identification of out-of-hospital cardiac arrest from drowning

    Breindahl, N., Wolthers, S. A., Jensen, T. W., Holgersen, M. G., Blomberg, S. N. F., Steinmetz, Jacob, Christensen, Helle Collatz & the Danish Cardiac Arrest Group, T. D. C. A. G., 2023, In: American Journal of Emergency Medicine. 73, p. 55-62 8 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  20. Published

    Dispatcher Stroke/TIA Recognition in Emergency Medical Call Center and Out-of-Hours Service Calls in Copenhagen, Denmark

    Wenstrup, J., Blomberg, S. N., Christensen, Hanne Krarup, Folke, Fredrik, Christensen, Helle Collatz & Kruuse, Christina Rostrup, 2023, In: Neurology: Clinical Practice. 13, 6, 10 p., e200197.

    Research output: Contribution to journal › Journal article › Research › peer-review

  21. Published

    Ethical considerations in the prehospital treatment of out-of-hospital cardiac arrest: A multi-centre, qualitative study

    Milling, L., Nielsen, D. S., Kjær, J., Binderup, L. G., de Muckadell, C. S., Christensen, Helle Collatz, Christensen, E. F., Lassen, A. T. & Mikkelsen, S., 2023, In: PLoS ONE. 18, 7, 19 p., e0284826.

    Research output: Contribution to journal › Journal article › Research › peer-review

  22. Published

    Evaluation of a critical incident management system on mental health in lifeguard organisations: A retrospective study

    Breindahl, N., Strange, K. F., Østergaard, Doris & Christensen, Helle Collatz, 2023, In: BMJ Open Sport and Exercise Medicine. 9, 1, e001499.

    Research output: Contribution to journal › Journal article › Research › peer-review

  23. Published

    Geographical Association Between Basic Life Support Courses and Bystander Cardiopulmonary Resuscitation and Survival from OHCA in Denmark

    Jensen, T. W., Ersbøll, A. K., Folke, Fredrik, Andersen, M. P., Blomberg, S. N., Holgersen, M. G., Andersen, L. B., Lippert, F., Torp-Pedersen, Christian & Christensen, Helle Collatz, 2023, In: Open Access Emergency Medicine. 15, p. 241-252 12 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  24. Published

    Long-Term Quality of Life After Out-of-Hospital Cardiac Arrest

    Yonis, H., Sørensen, Kathrine Kold, Bøggild, H., Ringgren, K. B., Hansen, Carolina Malta, Granger, C. B., Folke, Fredrik, Christensen, Helle Collatz, Jensen, B., Andersen, M. P., Joshi, V. L., Zwisler, A., Torp-Pedersen, Christian & Kragholm, K., 2023, In: JAMA Cardiology. 8, 11, 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

  25. Published

    Pre-hospital symptoms associated with acute bacterial meningitis differs between children and adults

    Hovmand, N., Christensen, Helle Collatz, Lundbo, L. F., Kronborg, Gitte, Darsø, P., Blomberg, S. N. F. & Benfield, Thomas, 2023, In: Scientific Reports. 13, 1, 9 p., 21479.

    Research output: Contribution to journal › Journal article › Research › peer-review

  26. Published

    Recognition of visual symptoms in stroke: a challenge to patients, bystanders, and Emergency Medical Services

    Berg, K. P., Sørensen, V. F. I., Blomberg, S. N. F., Christensen, Helle Collatz & Kruuse, Christina Rostrup, 2023, In: BMC Emergency Medicine. 23, 1, 17 p., 96.

    Research output: Contribution to journal › Journal article › Research › peer-review

  27. Published

    Registered prodromal symptoms of out-of-hospital cardiac arrest among patients calling the medical helpline services

    Zylyftari, N., Lee, C. J. Y., Gnesin, Filip Jurijevitj, Møller, Amalie Lykkemark, Mills, E. H. A., Møller, S. G., Jensen, B., Ringgren, K. B., Kragholm, K., Christensen, Helle Collatz, Blomberg, S. N. F., Tan, H. L., Folke, Fredrik, Køber, Lars Valeur, Gislason, Gunnar Hilmar & Torp-Pedersen, Christian, 2023, In: International Journal of Cardiology. 374, p. 42-50 9 p.

    Research output: Contribution to journal › Journal article › Research › peer-review

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ID: 22768155