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Apparatus and method for selecting a preferred pacing vector in a cardiac resynchronization device

  • US 9,199,087 B2
  • Filed: 11/21/2011
  • Issued: 12/01/2015
  • Est. Priority Date: 11/21/2011
  • Status: Active Grant
First Claim
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1. A method for controlling a cardiac therapy, the method comprising:

  • delivering pacing pulses to a patient'"'"'s left ventricle at a plurality of pacing sites one at a time;

    determining right ventricular activation times in response to the pacing pulses being delivered at each of the plurality of pacing sites; and

    selecting a left ventricular pacing site in response to the determined right ventricular activation times, wherein selecting the left ventricular pacing site comprises;

    identifying a left ventricular pacing site from the plurality of pacing sites with an associated first activation time that is the latest determined right ventricular activation time compared to the other right ventricular activation times associated with the other plurality of pacing site;

    increasing a pacing output delivered to the identified left ventricular pacing site;

    determining a second activation time of the right ventricle in response to the increased pacing output; and

    rejecting the identified left ventricular pacing site with the associated first activation time in response to the second activation time being less than the first activation time.

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