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System and method for cardiac rhythm management with dynamically adjusted synchronized chamber pacing protection period

  • US 7,003,347 B2
  • Filed: 06/14/2002
  • Issued: 02/21/2006
  • Est. Priority Date: 12/26/2000
  • Status: Active Grant
First Claim
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1. A cardiac rhythm management device, comprising:

  • sensing channels for sensing intrinsic depolarizations in a rate chamber and a contralateral synchronized chamber and generating sense signals in accordance therewith;

    a controller for controlling the delivery of paces in accordance with a programmed pacing mode;

    wherein the controller is programmed to pace the synchronized chamber in accordance with a synchronized pacing mode in which the synchronized chamber is paced upon expiration of an escape interval, wherein the escape interval is reset by a rate chamber sense or a synchronized chamber pace;

    wherein pacing of the synchronized chamber is inhibited during a synchronized chamber protection period that is initiated by a synchronized chamber sense or pace; and

    ,wherein the controller is further programmed to adjust the duration of the synchronized chamber protection period based upon detection of a repolarization in the synchronized chamber.

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