Patent ID: 8874212

Claim:
A method for use with an active medical device, comprising: delivering electrical stimulation pulses using electrodes adapted to be implanted in at least one heart chamber of a patient; collecting electrogram (EGM) signals representative of depolarization cardiac potentials; and detecting anodal stimulation by detecting a depolarization induced in a second cardiac chamber by a pacing delivered in a first heart chamber, wherein detecting anodal stimulation comprises: (i) delivering a stimulation pulse in the first cavity during at least one cardiac cycle; (ii) concurrently collecting, in the second cavity, at least two distinct EGM signals and deriving at least two respective distinct temporal components (V bip , V uni ) from the two distinct EGM signals; (iii) combining the two temporal components to create a non-temporal two dimensional vectogram representative of the cardiac cycle to be analyzed, by pairing the temporal components V uni and V bip ; and (iv) determining the presence or absence of anodal stimulation by analyzing the non-temporal two dimensional vectogram.