The Osborn wave of hypothermia in normothermic patients.

The Osborn wave (also referred to as "the J wave," "the J deflection," or "the camel's hump") is a distinctive deflection occurring at the QRS-ST junction of approximately 80% of hypothermic patients (core body temperature < or = 95 degrees F). Generally, the amplitude and duration of Osborn waves are inversely related to core temperature. We report on eight normothermic patients whose 12-lead electrocardiograms demonstrated QRS-ST junction notches similar to those seen in hypothermia. These data support the concept that the Osborn wave is not pathognomonic of hypothermia.