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SYSTEMS AND METHODS FOR ASSESSING AND EXPLOITING CONCURRENT CATHODAL AND ANODAL CAPTURE USING AN IMPLANTABLE MEDICAL DEVICE

  • US 20130184777A1
  • Filed: 01/17/2012
  • Published: 07/18/2013
  • Est. Priority Date: 01/17/2012
  • Status: Active Grant
First Claim
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1. A method for use with an implantable medical device equipped for bipolar electrical stimulation and sensing of heart tissues using cardiac electrodes, the method comprising:

  • delivering bipolar stimulus using a pair of the cardiac electrodes while sensing bipolar intracardiac electrogram (IEGM) signals using the pair of the cardiac electrodes;

    detecting an indication within the bipolar IEGM signals of evoked responses (ERs) representative of anodal capture within myocardial tissues associated with an anode of the pair of the cardiac electrodes and cathodal capture within myocardial tissues associated with a cathode of the pair of the cardiac electrodes; and

    determining an anodal/cathodal capture threshold sufficient to achieve both anodal and cathodal capture from the indication within the bipolar IEGM signals of the ERs.

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