Osborn waves in a patient with hypothermia due to severe hypothyroidism

The correlation between the amplitude of Osborn wave and core body temperature

“…We found 64 articles 4–67 comprising a total of 68 cases with a mean age of 55 years, out of which 79% were males. Cause of hypothermia were accidental in 38%, therapeutic hypothermia in 11%, sepsis in 11%, alcohol intoxication and endocrinal causes (including diabetic ketoacidosis and hypothyroidism) in 11%, head trauma and brain death in 9%, drug-induced in 5.5% and post-surgery and post-cardiac arrest in 3.6% each.…”

Osborn waves following out-of-hospital cardiac arrest—Effect of level of temperature management and risk of arrhythmia and death

“…Ever since Tomaszewski's discovery in 1938 of the hypothermia-related [9] J-waves in man and Osborn's clinical demonstration (1953) in acidotic and hypothermic dogs [10], the presence of the upright deflection in the ECG has been thought to be pathognomonic of hypothermia. Case reports have since shown that in addition to accidental and induced hypothermia, OW can be observed in other conditions, e.g diabetic ketoacidosis [15], sepsis [16], hypothyroidism [17] and brain death [18]. OW can thereby be observed in normothermic conditions [19] and have been detected in numerous case reports in different heartrelated diseases, STEMI [20], acute myocardial ischemia [21] and LV hypertrophy caused by hypertension [22].…”