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[Electrocardiographic changes in accidental hypothermia]

G Sgobba, G Nassisi, F Giannelli

    Giornale Italiano Di Cardiologia
    |January 1, 1982
    PubMed
    Summary
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    Severe hypothermia in an elderly woman led to cardiac abnormalities, including atrial fibrillation and prominent J waves on ECG. These electrocardiogram (ECG) changes resolved with rewarming, highlighting hypothermia

    Area of Science:

    • Cardiology
    • Emergency Medicine
    • Environmental Health

    Background:

    • Hypothermia is a critical medical emergency often resulting from environmental exposure.
    • Elderly individuals are particularly vulnerable to hypothermia due to physiological changes.

    Observation:

    • An 83-year-old female presented with hypothermia (23°C) after a fall in a cold environment.
    • She exhibited shock, metabolic acidosis, anemia, and hypokalemia upon admission.

    Findings:

    • Initial electrocardiogram (ECG) revealed atrial fibrillation with a slow ventricular response.
    • A prominent J wave was observed on left precordial leads, a characteristic sign of hypothermia.
    • Transient increase in QRS voltage was noted during rewarming.

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    Implications:

    • Hypothermia can induce significant and reversible cardiac electrical disturbances.
    • Prompt recognition and management of hypothermia are crucial for patient outcomes.
    • ECG findings in hypothermia serve as important diagnostic markers.