Osborn wave


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Osborn wave

an abnormal upward deflection in the electrocardiogram (ECG) occurring at the junction of the QRS complex and the S-T segment. It is often found in ECGs of patients with moderate hypothermia and becomes more pronounced as body temperature declines. Also called J wave.
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Osborn wave
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sup][11] J wave was later named as Osborn wave after being highlighted by a landmark study in which Osborn described hypothermia-induced J wave in hypothermic dogs and its accentuation prior to VF.
The physiologic effect of hypothermia on ECG is known as Osborn wave that was firstly described by Joseph Osborn in 1953 (1).
J wave, which is also known as Osborn wave, is formed by a transmyocardial gradient and this heterogeneity often lays the ground for arrhythmia.
The J waves, upright waves at the junctions of the QRSs with the ST segments, are large and in hypothermic patients are called Osborn waves.
Osborn waves associated with ventricular fibrillation in a patient with vasospastic angina.