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Figure 3 Ventricular fibrillation during simulated stress and neuromuscular incapacitating device (NID) discharge. This shows an NID discharge in the thoracic configuration that resulted in ventricular fibrillation during epinephrine infusion (A). In B, as noted by the arrowheads, during the discharge there was a 3:1 phase lock of NID discharge that progressed to a 2:1 phase lock resulting in rapid ventricular tachycardia (VT), and in C this tachycardia degenerates into polymorphic VT that results in ventricular fibrillation. Abbreviations as in Figure 1.
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