Vol 71, No 12 (2013)
ECG
Published online: 2013-12-13

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Giant drug-induced QT prolongation > 800 ms with alternans of terminal portion of T wave and J wave in a normothermic patient

Piotr Kukla, Adrian Baranchuk, Marek Jastrzębski, Leszek Bryniarski, Rafał Baranowski
Kardiol Pol 2013;71(12):1306-1307.

Abstract

We describe a case of an 85-year-old woman admitted to hospital because of syncope with palpitations. The patient had mistakenly taken sotalol 120 mg/d together with carvedilol 6.25 mg/d. On hospital admission, ECG showed sinus bradycardia 52 bpm with marked QT prolongation: QTc presented variability from beat to beat (840 ms – 640 ms – 820 ms – 640 ms, respectively) with associated macro-alternans of T wave. T wave alternans was observed within the ascending portion of negative T wave. Beside it a J wave was seen.

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Polish Heart Journal (Kardiologia Polska)