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Related Experiment Videos

Urban accidental hypothermia: 135 cases

J W Miller, D F Danzl, D M Thomas

    Annals of Emergency Medicine
    |September 1, 1980
    PubMed
    Summary

    Active core rewarming with heated oxygen aerosol via nasotracheal tube offers rapid rewarming for hypothermia patients. This method, alongside arrival temperature and underlying conditions, significantly impacts patient prognosis and survival rates.

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    Area of Science:

    • Emergency Medicine
    • Critical Care Medicine
    • Environmental Health

    Background:

    • Hypothermia is a significant medical emergency requiring effective rewarming strategies.
    • Various rewarming techniques exist, each with potential benefits and drawbacks.

    Purpose of the Study:

    • To compare the efficacy and safety of different rewarming methods for urban hypothermia.
    • To identify factors influencing patient prognosis in hypothermia cases.

    Main Methods:

    • Retrospective review of 135 urban hypothermia presentations (114 patients) over nine years.
    • Analysis of rewarming rates and mortality associated with passive external, active external, and heated oxygen aerosol (mask or intubation).

    Main Results:

    • Heated oxygen aerosol via nasotracheal tube provided the fastest rewarming rate (1.22°C/hr), significantly exceeding passive external methods.
    • Overall mortality was 11.9%, rising to 47.9% with serious underlying disease.
    • Active core rewarming with intubation was preferred for moderate to severe hypothermia; survivors had higher arrival temperatures.

    Conclusions:

    • Active core rewarming with heated aerosolized oxygen via nasotracheal tube is a safe and effective technique for rapid rewarming in selected hypothermia patients.
    • Patient arrival temperature and the presence of serious underlying disease are critical determinants of prognosis.

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