A 76-year-old woman with a history of dementia and coronary heart disease was brought to the emergency department after she had been found lying outdoors for an undetermined period. What is this electrocardiogram finding? Delta waveΒ Epsilon waveΒ Osborn waveΒ Inverted Q waveΒ U wave
The correct answer is Osborn wave. Hypothermia may produce prominent Osborn waves, also known as J waves, along with prolonged QRS and QT intervals. In addition to hypothermia, J waves have been associated with conditions that can occur in normothermia (e.g., hypercalcemia, the Brugada syndrome, and neurologic injury).
Osborn wave, seen in hypothermia, hypercalcaemia, neurological insults, medications and Le syndrome d'HaΓ―ssaguerre