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Related Experiment Videos

Hypothermia. Cold-water drowning.

E M Elixson

    Critical Care Nursing Clinics of North America
    |June 1, 1991
    PubMed
    Summary
    This summary is machine-generated.

    Cold-water submersion induces rapid hypothermia, offering potential brain protection. Rewarming protocols are critical for favorable outcomes in submerged patients, even those appearing lifeless.

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    Area of Science:

    • Emergency Medicine
    • Cardiology
    • Neurology

    Background:

    • Cold-water submersion rapidly induces hypothermia, mimicking some physiological responses of controlled clinical hypothermia.
    • The body's response to cold-water immersion is time-accelerated compared to hospital-induced hypothermia.
    • Extracorporeal heat exchange techniques require careful differentiation from cold-water submersion, particularly during rewarming.

    Purpose of the Study:

    • To differentiate hypothermic techniques in cold-water submersion from cardiopulmonary bypass.
    • To highlight the neuroprotective effects of hypothermia during cold-water immersion.
    • To discuss critical rewarming parameters for optimizing patient outcomes.

    Main Methods:

    • Review of physiological responses to cold-water submersion and induced hypothermia.

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  • Analysis of factors influencing hypothermia's neuroprotective effects (age, time, temperature, pH, metabolism).
  • Examination of criteria for discontinuing resuscitative measures in hypothermic patients.

    • Main Results:

    • Hypothermia can protect the brain from hypoxic injury following cold-water submersion, potentially leading to favorable neurologic recovery.
    • Rewarming to 30-34°C is essential before ceasing resuscitation due to complex hypothermic influences.
    • Even asystolic, apneic children with absent CNS activity after submersion may have positive outcomes.

    Conclusions:

    • Hypothermia offers significant neuroprotection in cold-water immersion incidents.
    • Careful adherence to specific rewarming protocols is crucial for successful resuscitation.
    • Favorable outcomes are possible in severely affected children, emphasizing the need for comprehensive medical and rehabilitative efforts.