Journal of electrocardiology
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Clinical Trial
The pattern of Tpeak-Tend and QT interval, and J wave during therapeutic hypothermia.
The electrocardiogram manifestations of hypothermia include J waves and prolongation of QT intervals. This study described changes in repolarization patterns during therapeutic hypothermia (TH). ⋯ QTc prolongation without TpTe increase or abnormal J wave may not be arrhythmogenic during TH.
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Cerebrogenic ECG abnormalities, especially prominent T wave inversions and prolongation of the QT(U) interval, are well-described. Brady- and tachyarrhythmias, including polymorphic VT, have been also described in the setting of neurologic injury. ⋯ Serial ECG findings included marked ventricular repolarization prolongation with bursts of torsade de pointes, diffuse ST elevations simulating extensive myocardial ischemia or infarction, as well as a Brugada-like pattern. To our knowledge, this case is the first reported with the combination of such findings in a patient with a catastrophic neurologic syndrome.