Patent ID: 8617082
Filing Date: 2013-12-31
Classification: A61B,A61N

Abstract:
1. A method comprising: obtaining heart sounds from an implanted heart sound sensor; obtaining an electrogram (EGM) from electrodes of an implantable device; generating one or more acoustic cardiographic metrics based on at least one of the heart sounds and the electrogram for a set of cardiac pacing parameters, the set of cardiac pacing parameters including a plurality of pacing parameters; wherein the acoustic cardiographic metrics include one or more of: a surrogate for a myocardial performance index (MPI) based at least on a duration heart sound S an indication of left ventricle (LV) fill time based on the interval between heart sound S an indication of LV contractility based on at least one of: wherein the acoustic cardiographic metric comprising the indication of VV dyssynchrony is based on the splitting of heart sound S