Helle Collatz Christensen

Helle Collatz Christensen

Clinical Associate Professor

Member of:

  • Emergency Medicine


Publication year:
All
1 - 25 out of 83Page size: 25
  1. 2019
  2. Published

    Reply letter to “Machine learning as a supportive tool to recognize cardiac arrest in emergency calls”

    Blomberg, S. N., Folke, Fredrik, Ersbøll, A. K., Christensen, Helle Collatz, Torp-Pedersen, C., Sayre, M. R., Counts, C. R. & Lippert, F. K., 2019, In: Resuscitation. 144, p. 205-206 2 p.

    Research output: Contribution to journal › Comment/debate › Research

  3. Published

    Satisfaction of 30 402 callers to a medical helpline of the Emergency Medical Services Copenhagen: A retrospective cohort study

    Zinger, N. D., Blomberg, S. N., Lippert, F. & Christensen, Helle Collatz, 2019, In: BMJ Open. 9, 10, 9 p., e029801.

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

  4. Published

    Sociodemographic and health-related determinants for making repeated calls to a medical helpline: a prospective cohort study

    Blakoe, M., Gamst-Jensen, H., von Euler-Chelpin, My Catarina, Christensen, Helle Collatz & Møller, Tom, 2019, In: BMJ Open. 9, 7, 8 p., 030173.

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

  5. Published

    Contacting out-of-hours primary care or emergency medical services for time-critical conditions - impact on patient outcomes

    Sovso, M. B., Christensen, M. B., Bech, B. H., Christensen, Helle Collatz, Christensen, E. F. & Huibers, L., 7 Nov 2019, In: B M C Health Services Research. 19, 10 p., 813.

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

  6. Published

    Injury from electric scooters in Copenhagen: A retrospective cohort study

    Blomberg, S. N. F., Rosenkrantz, O. C. M., Lippert, F. & Christensen, Helle Collatz, Dec 2019, In: BMJ Open. 9, 12, 8 p., e033988.

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

  7. 2020
  8. Published

    Does an emergency access button increase the patients' satisfaction and feeling of safety with the out-of-hours health services? A randomised controlled trial in Denmark

    Ebert, J. F., Huibers, L., Christensen, B., Christensen, Helle Collatz & Christensen, M. B., 2020, In: BMJ Open. 10, 9, e030267.

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

  9. Published

    Smartphone Activation of Citizen Responders to Facilitate Defibrillation in Out-of-Hospital Cardiac Arrest

    Andelius, L., Malta Hansen, C., Lippert, F. K., Karlsson, L., Torp-Pedersen, Christian, Kjær Ersbøll, A., Køber, Lars Valeur, Christensen, Helle Collatz, Blomberg, S. N., Gislason, Gunnar Hilmar & Folke, Fredrik, 2020, In: Journal of the American College of Cardiology. 76, 1, p. 43-53

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

  10. Published

    Sociodemographic Characteristics Associated with Contacts to Emergency Medical Services and Out-of-Hours Primary Care: An Observational Study of 2.3 Million Citizens

    Søvsø, M. B., Bech, B. H., Christensen, Helle Collatz, Huibers, L., Christensen, E. F. & Christensen, M. B., 2020, In: Clinical Epidemiology. 12, p. 393-401 9 p.

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

  11. Published

    Strategies to Handle Increased Demand in the COVID-19 Crisis: A Coronavirus EMS Support Track and a Web-Based Self-Triage System

    Jensen, T., Holgersen, M. G., Jespersen, M. S., Blomberg, S. N., Folke, Fredrik, Lippert, F. & Christensen, Helle Collatz, 2020, In: Prehospital Emergency Care. 25, 1, p. 28-38 11 p.

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

  12. Published

    The Danish Multidisciplinary Hip Fracture Registry 13-Year Results from a Population-Based Cohort of Hip Fracture Patients

    Kristensen, P. K., Röck, N. D., Christensen, Helle Collatz & Pedersen, A. B., 2020, In: Clinical Epidemiology. 12, p. 9-21 13 p.

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

  13. Published

    Acute care pathways for patients calling the out-of-hours services

    Søvsø, M. B., Huibers, L., Bech, B. H., Christensen, Helle Collatz, Christensen, M. B. & Christensen, E. F., 27 Feb 2020, In: BMC Health Services Research. 20, 1, 10 p., 146.

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

  14. Published

    Communication quality in telephone triage conducted by general practitioners, nurses or physicians: a quasi-experimental study using the AQTT to assess audio-recorded telephone calls to out-of-hours primary care in Denmark

    Graversen, D. S., Huibers, L., Christensen, M. B., Bro, F., Christensen, Helle Collatz, Vestergaard, C. H. & Pedersen, A. F., 26 Mar 2020, In: BMJ Open. 10, 3, 12 p., e033528.

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

  15. 2021
  16. Published

    Cardiovascular comorbidities as predictors for severe COVID-19 infection or death

    Phelps, M., Christensen, D. M., Gerds, Thomas Alexander, Fosbøl, E., Torp-Pedersen, Christian, Schou, Morten, Køber, Lars Valeur, Kragholm, K., Andersson, C., Biering-Sørensen, Tor, Christensen, Helle Collatz, Andersen, M. P. & Gislason, Gunnar Hilmar, 2021, In: European Heart Journal - Quality of Care and Clinical Outcomes. 7, 2, p. 172-180 9 p.

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

  17. Published

    Effect of Machine Learning on Dispatcher Recognition of Out-of-Hospital Cardiac Arrest During Calls to Emergency Medical Services: A Randomized Clinical Trial

    Blomberg, S. N., Christensen, Helle Collatz, Lippert, F., Ersbøll, A. K., Torp-Pedersen, Christian, Sayre, M. R., Kudenchuk, P. J. & Folke, Fredrik, 2021, In: JAMA Network Open. 4, 1, p. e2032320

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

  18. Published

    Effect of real-time and post-event feedback in out-of-hospital cardiac arrest attended by EMS - A systematic review and meta-analysis

    Lyngby, R. M., Händel, M. N., Christensen, A. M., Nikoletou, D., Folke, Fredrik, Christensen, Helle Collatz, Barfod, Charlotte & Quinn, T., 2021, In: Resuscitation Plus. 6, p. 1-11 100101.

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

  19. Published

    Emergency Medical Services response levels and subsequent emergency contacts among patients with a history of mental illness in Denmark: a nationwide study

    Mackenhauer, J., Valentin, J. B., Mikkelsen, S., Steinmetz, Jacob, Væggemose, U., Christensen, Helle Collatz, Mainz, J., Johnsen, S. P. & Christensen, E. F., 2021, In: European Journal of Emergency Medicine. 28, 5, p. 363-372 10 p.

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

  20. Published

    Higher resuscitation guideline adherence in paramedics with use of real-time ventilation feedback during simulated out-of-hospital cardiac arrest: A randomised controlled trial

    Lyngby, R. M., Clark, L., Kjoelbye, J. S., Oelrich, R. M., Silver, A., Christensen, Helle Collatz, Barfod, Charlotte, Lippert, F., Nikoletou, D., Quinn, T. & Folke, Fredrik, 2021, In: Resuscitation Plus. 5, p. 1-10 100082.

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

  21. Published

    Impact ofmyocardial infarction symptom presentation on emergency response and survival

    Møller, Amalie Lykkemark, Mills, E. H. A., Gnesin, F., Jensen, B., Zylyftari, N., Christensen, Helle Collatz, Blomberg, S. N. F., Folke, Fredrik, Kragholm, K. H., Gislason, Gunnar Hilmar, Fosbøl, E., Køber, Lars Valeur, Gerds, Thomas Alexander & Torp-Pedersen, C., 2021, In: European Heart Journal: Acute Cardiovascular Care. 10, 10, p. 1150-1159 10 p.

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

  22. Published

    In-Hospital vs. Out-of-Hospital Cardiac Arrest: Patient Characteristics and Survival

    Høybye, M., Stankovic, N., Holmberg, M., Christensen, Helle Collatz, Granfeldt, A. & Andersen, L. W., 2021, In: Resuscitation. 158, p. 157-165

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

  23. Published

    Live video from bystanders’ smartphones to improve cardiopulmonary resuscitation

    Linderoth, Gitte, Rosenkrantz, O., Lippert, F., Østergaard, Doris, Ersbøll, A. K., Meyhoff, Christian Sylvest, Folke, Fredrik & Christensen, Helle Collatz, 2021, In: Resuscitation. 168, p. 35-43 9 p.

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

  24. Published

    Live video from bystanders’ smartphones to medical dispatchers in real emergencies

    Linderoth, G., Lippert, F., Østergaard, Doris, Ersbøll, A. K., Meyhoff, Christian Sylvest, Folke, Fredrik & Christensen, Helle Collatz, 2021, In: BMC Emergency Medicine. 21, 1, 10 p., 101.

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

  25. Published

    Nonspecific symptoms dominate at first contact to emergency healthcare services among cases with invasive meningococcal disease

    Hovmand, N., Christensen, Helle Collatz, Lundbo, L. F., Sandholdt, H., Kronborg, Gitte, Darsø, P., Anhøj, J., Blomberg, S. N. F., Bisgaard, A. T. & Benfield, Thomas, 2021, In: BMC Family Practice. 22, 240.

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

  26. Published

    Psychiatric Admissions, Referrals and Suicidal Behavior Before and During the COVID-19 Pandemic in Denmark: A Time-Trend Study

    Rømer, T. B., Christensen, R. H. B., Blomberg, S. N., Folke, Fredrik, Christensen, Helle Collatz & Benros, Michael Eriksen, 2021, In: Acta Psychiatrica Scandinavica. 144, 6, p. 553-562

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

  27. Published

    Thrombocytopenia after COVID-19 vaccination

    Kragholm, K., Sessa, Maurizio, Mulvad, T., Andersen, M. P., Christensen, Helle Collatz, Blomberg, S. N., Lippert, F., Mikkelsen, S., Leutscher, P., Melgaard, D., Torp-Pedersen, Christian, Kristensen, S. R., Larsen, T. B. & Søgaard, P., 2021, In: Journal of Autoimmunity. 123, 2 p., 102712.

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

  28. Published

    Bystander interventions and survival following out-of-hospital cardiac arrest at Copenhagen International Airport

    Gantzel Nielsen, C., Andelius, L. C., Hansen, C. M., Blomberg, S. N. F., Christensen, Helle Collatz, Kjølbye, J. S., Tofte Gregers, M. C., Ringgren, K. B. & Folke, Fredrik, May 2021, In: Resuscitation. 162, p. 381-387 7 p.

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

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ID: 22768155