Patent ID: 9095720
Filing Date: 2015-08-04
Classification: A61N

Abstract:
1. A method for use with an implantable system including a lead having multiple electrodes implantable in a patient's left ventricular (LV) chamber, the method comprising: (a) during a same cardiac cycle, (a.1) using a first pacing vector comprising a first set of electrodes to deliver a first pacing pulse at a first site within the LV chamber, and (a.2) using a second pacing vector comprising a second set of electrodes to deliver a second pacing pulse at a second site within the LV chamber, wherein at least one of the electrodes of the second set differs from at least one of the electrodes of the first set; and (b) determining whether global capture is achieved by the first and second pacing pulses by using one or more sensing vector to monitor for evoked responses to the first and second pacing pulses, wherein global capture is achieved when each of the first and second pacing pulses, delivered respectively by the first and second pacing vectors, causes local capture, and resulting depolarization propagates throughout the LV chamber.