The Osborn waves provide an index of the presence of a prominent notch in the ventricular epicardium, with a more negative potential at the end of phase 1 of the action potential.

What do Osborn waves mean?

Osborn Wave (J Wave) Overview The Osborn wave (J wave) is a positive deflection at the J point (negative in aVR and V1). It is usually most prominent in the precordial leads. Eponymously associated with John Jay Osborn (1917-2014) following his 1953 ‘current of injury’ description in hypothermic dogs.

Are J Waves bad?

Although “J Wave” is supposed to be pathognomonic of hypothermia, it is seen in a host of other conditions such as hypercalcemia, brain injury, subarachnoid hemorrhage, cardiopulmonary arrest from over sedation, the Brugada syndrome, vasospastic angina, and idiopathic ventricular fibrillation.