Patent ID: 8588907
Filing Date: 2013-11-19
Classification: A61N

Abstract:
1. A cardiac rhythm management device, comprising: pulse generation circuitry for incorporating into a pacing channel to deliver electrical stimulation to a myocardial site; sensing circuitry for incorporating into a sensing channel to sense cardiac activity; one or more sensors for measuring a physiological variable related to myocardial contractility; a controller programmed to deliver conventional pacing or high-output pacing (HOP) stimulation via the pacing channel, wherein the HOP stimulation comprises delivering pacing pulses with higher energy than conventional pacing pulses in accordance with a bradycardia pacing mode during a non-refractory period of the cardiac cycle; wherein the controller is further programmed to deliver the HOP stimulation in a HOP mode as specified by a set of one or more HOP stimulation parameters and wherein the set of one or more HOP stimulation parameters includes a parameter that specifies the energy of the HOP stimulation; and, wherein the controller is further programmed to optimize the HOP stimulation by delivering the HOP using different parameter sets, evaluate the hemodynamic response thereto as reflected by the one or more measured physiological variables, and select the parameter set with the best hemodynamic response for delivering HOP.