Fig. 5

VF from over-pacing converted with VNS. EKG and BP tracings of a rat that underwent VF and VNS defibrillation after cardiac electrical over-pacing stimulation are shown. Cardiac stimulation was performed by stimulating the ventricles with 4-mA, 4-ms pulses at 50 Hz. Defibrillation was accomplished by stimulating the left vagus with 4-mA, 1-ms pulses at 50 Hz