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System and Method for Promoting Instrinsic Conduction Through Atrial Timing Modification and Calculation of Timing Parameters

  • US 20070293897A1
  • Filed: 06/15/2006
  • Published: 12/20/2007
  • Est. Priority Date: 06/15/2006
  • Status: Active Grant
First Claim
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1. A method comprising:

  • operating an implantable medical device according to a ventricular pacing protocol (VPP) wherein ventricular pacing is precluded in a given cardiac cycle where a ventricular event occurred in a cardiac cycle immediately prior to the given cardiac cycle;

    establishing an A-A interval;

    initiating a first AV interval timer at the initiation of the given cardiac cycle;

    sensing for ventricular events;

    scheduling an early atrial pacing pulse at an accelerated atrial interval (AP(E)) prior to the termination of the A-A interval if no ventricular event is sensed within the duration of the AV interval timer, wherein the A-AP(E) interval is ≧

    the AV interval timer, is ≦

    a lower rate interval (LRI), and the AP(E) is selected to lead to a likely ventricular event (Target VS) at a predetermined time.

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