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. 2017 Jun 26;2(3):258–269. doi: 10.1016/j.jacbts.2017.02.002

Figure 7.

Cardiac Wavelength

(A) The critical cardiac wavelength (λc) in Ctrl (n = 7) and MI/iAL (n = 7) wedges. λc was defined as the cardiac wavelength during hypokalemia at the fastest pacing rate before initiation of re-entrant VT/VF (Supplemental Video 1), loss of 1:1 capture, or at the end of the protocol if neither occurred. (B) Individual values of λc. Abbreviations as in Figures 1 and 2.

Figure 7

graphic file with name grv1.jpg

Supplemental Video 1

Activation Wavefronts Underlying VT/VF During Hypokalemia in a MI/iAL Preparation

Video reveals reentry with a figure-of-8 pattern. MI/iAL = myocardial infarction model with increased afterload; VT/VF = ventricular tachycardia/ventricular fibrillation.