case_images: PMC10601787_01
case_images: ECG at the time of emergency transport exhibiting sinus tachycardia (heart rate: 100 bpm) and ventricular bigeminy but no QT prolongation (QTc 419 ms).
case_images: cro-2023-0016-0001-533826_F01.jpg
case_images: PMC10601787_01_cro-2023-0016-0001-533826_F01.jpg
case_images: F1
case_images: An ECG showed sinus tachycardia (100 bpm), ventricular bigeminy, and no QT prolongation (QTc, 419 ms) (Fig. 1).
case_images: Holter ECG showing non-sustained VT and PVC.
case_images: cro-2023-0016-0001-533826_F02.jpg
case_images: PMC10601787_01_cro-2023-0016-0001-533826_F02.jpg
case_images: F2
case_images: Of these, 55,216 (37.1%) polymorphic ventricular complexes were identified, including 59 ventricular extrasystole events and two non-sustained ventricular tachycardias (NSVTs) (Fig. 2).