Orthodromic tachycardia initiation by ventricular premature beats in the Wolff-Parkinson-White syndrome: a computer model study

A 3-dimensional computer model of cardiac excitation in the entire heart was used for modelling orthodromic tachycardia initiation associated with the Wolff-Parkinson-White syndrome (left lateral) induced by ventricular stimuli (right apical). Several ventricular pacing protocols were simulated and the initiation of orthodromic tachycardia rested. The results suggested that for orthodromic tachycardia initiation combined with ectopic ventricular activity at least two ventricular excitations were necessary.<
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