PMC6610752_01
The 12-lead electrocardiogram with sinus rhythm (103 beats per minute) and frequent premature ventricular complexes in bigeminy pattern.
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The 12-lead electrocardiogram at presentation showed sinus rhythm with a frequency of 103 beats per minute and frequent premature ventricular complexes in bigeminy pattern with a QTc interval of 419 ms (Figure 1).
Rhythm strips with episodes of torsade des pointes terminating spontaneously.
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Furthermore, frequent episodes of torsade des pointes were observed (Figure 2).
The 12-lead electrocardiogram after two days of hospitalization with a prolonged QTc interval of 526 ms.
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During hospitalization, the QTc interval varied between normal (<460 ms) and severely prolonged (552 ms) (Figure 3).