Patent ID: 7751888

Claim:
A method for delivering electrical stimulation to the heart of a patient using an implantable medical device, the method comprising: measuring information representative of dynamic impedance waveforms within the heart of the patient; retrieving information representative of dynamic impedance waveforms within healthy hearts from a memory device for input into a processing device; comparing the information representative of dynamic impedance waveforms within the heart of the patient and like information representative of dynamic impedance waveforms within healthy hearts; and controlling delivery of electrical stimulation to the heart of the patient to reduce a difference between the dynamic impedance waveforms within the heart of the patient and the dynamic impedance waveforms within healthy hearts; wherein the stimulation comprises applying relatively high frequency, inotropic, subthreshold stimuli along with suprathreshold, depolarization stimulation pulses along multiple stimulation vectors at varying time delays to trigger localized depolarizations that fuse with intrinsic depolarization to affect both spatial and temporal aspects of myocardial electro-mechanical activation within the heart of the patient.