Patent ID: 8571657
Filing Date: 2013-10-29
Classification: A61N

Abstract:
1. An apparatus for pacing right and left ventricles of a heart for delivery of a heart failure pacing therapy, comprising: a lead system comprising a right ventricular (RV) lead and a left ventricular (LV) lead; a pressure sensor system comprising a left ventricular pressure (LVP) sensor and a right ventricular pressure (RVP) sensor, the RVP sensor configured to take an RV pressure measurement and the LVP sensor configured for placement in the coronary sinus or a coronary vein and to measure a coronary sinus pressure or a coronary vein pressure which is proportionally related to an LV chamber pressure; an implantable housing; a telemetry circuit disposed in the housing and configured to communicate with a patient-external device; and a processor disposed in the implantable housing, the processor coupled to the telemetry circuit and to the lead and pressure sensor systems, the processor configured to execute program instructions stored in memory to compute at least one parameter based at least in part on a comparison of RVP and LVP sensor pressure measurements wherein the parameter is indicative of a degree of left and right ventricular synchronization, the processor configured to adjust the at least one parameter of the heart failure pacing therapy to improve synchronization of the right and left ventricles based on the at least one computed parameter.