Hypothermia

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Hypothermia can cause J waves, or Osborn waves, bradycardia, a prolonged QT, and motion artifact from shivering.

Examples

ECG Showing Hypothermia

Hypothermia

Osborn waves, bradycardia, and prolonged QT all due to hypothermia.
ECG Showing Hypothermia

Hypothermia

Atrial fibrillation and Osborn waves characteristic of hypothermia.
ECG Showing Hypothermia

Hypothermia

Osborn waves can mimic ST-segment elevation as was the case with this post-arrest ECG. Slow atrial fibrillation is another hallmark of hypothermia. The core temperature was 76 deg F (24.4 deg C).

References

  1. Doshi HH, Giudici MC. The EKG in hypothermia and hyperthermia. Journal of Electrocardiology. 2015;48(2):203-209.