60 Hz leakage currents cause complete hemodynamic collapse below VF threshold

This figure summarizes the data showing the threshold for simulation (bold line), the minimum for VF (dotted line) and the average value for collapse. With the exception of one point (80Hz), there is always a point below the strength causing VF where AC stimulation causes complete systematic pressure collapse, but not VF. The mechanism is still under investigation, but appears to be the induction of a hemodynamically compromised tachycardia.