Patent ID: 8634916

Claim:
A heart stimulating system comprising: an implantable device having a stimulation pulse generator adapted to generate stimulation pulses, a stimulation lead coupled to said pulse generator, the stimulation lead having a plurality of stimulation and sensing electrodes; a sensing unit adapted to sense electrical heart tissue responses via said sensing electrodes to electrical stimulation pulses applied via said stimulation electrodes, the sensing unit being adapted to determine a depolarization wave velocity parameter for each stimulation pulse that results in a depolarization wave; a memory unit coupled to the sensing unit and adapted to store the depolarization wave velocity parameters as a function of the plurality of stimulation electrodes, a comparison unit adapted to compare the stored wave velocity parameters related to different ones of the plurality of stimulation electrodes wherein the comparison is used to adapt a stimulation electrode configuration when stimulating the heart to optimize the hemodynamic performance of the heart.