Patent ID: 7299094
Filing Date: 2007-11-20
Classification: A61N

Abstract:
1. In an implantable cardiac stimulation device for implant within a patient, a pacing system comprising: a biventricular pacing system operative to deliver biventricular pacing pulses to the left and right ventricles of the patient; a capture verification system operative to detect a loss of capture of left ventricular (LV) pulses during biventricular pacing; a loss of capture recovery system operative to deliver a backup pulse following detection of a loss of capture of an LV pulse; and a stimulation threshold search system programmed to determine pacing pulse amplitudes sufficient to achieve capture, wherein the biventricular pacing system is programmed to control the stimulation threshold search system to perform an RV stimulation threshold search while inhibiting LV pacing to prevent LV pacing from interfering with the RV stimulation threshold search.