Patent ID: 9610447
Date: 2017-04-04
CPC Classifications: A61N

Claim:
1. A method for use with an implantable cardiac stimulation device equipped with a right ventricular (RV) lead and a multi-pole left ventricular (LV) lead wherein the device has a programmable set of sensing and stimulation vectors including vectors exploiting lead electrodes as cathodes and vectors exploiting lead electrodes as anodes, the method comprising: expediting a test procedure by measuring RV-LV delay times for only a subset of sensing vectors from a total number of possible sensing vectors, wherein each of the sensing vectors in the subset use different electrodes of the LV lead as a sensing cathode and use at least one of a can of the device or an electrode of the RV lead as a sensing anode, wherein the measuring operation includes excluding sensing vectors that use electrodes of the LV lead as sensing anodes; selecting an LV electrode based upon a site of latest activation as indicated by the measured delay times from among the LV electrodes used as sensing cathodes to measure the RV-LV delay times; measuring a stimulation threshold for at least one stimulation vector that employs the selected LV electrode as a cathode; identifying a stimulation vector that employs the selected LV electrode as a cathode and has an acceptable threshold; and controlling a pulse generator of the implantable cardiac stimulation device to deliver stimulation using the identified stimulation vector.