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We examined the effect of ibutilide, a class III antiarrhythmic agent, on the energy requirement for atrial defibrillation and assessed the value of this agent in facilitating cardioversion in patients with atrial fibrillation that is resistant to conventional transthoracic cardioversion. Methods. . =
After resuscitation and defibrillation , there were no more episodes of TdP. Below is the patient’s 12 lead ECG following defibrillation. Of note — the QT interval of beat #5 ( blue line ) is markedly prolonged compared to the QT interval in the beginning of the tracing ( red line ). What does this ECG tell you?
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