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Method and apparatus for reducing the effect of evoked responses on polarization measurements in an automatic capture pacing system

  • US 6,618,619 B1
  • Filed: 09/26/2000
  • Issued: 09/09/2003
  • Est. Priority Date: 05/12/2000
  • Status: Expired due to Fees
First Claim
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1. A method for determining an amount of polarization occurring following generation of electrical pulses in heart tissue from an implantable cardiac stimulation device, the method comprising the steps of:

  • delivering a first pair of electrical pulses separated by a first amount of time to measure a magnitude of electrical polarization occurring within the heart tissue; and

    if the magnitude of electrical polarization exceeds a predetermined threshold, delivering a second pair of electrical pulses separated by a second amount of time, different than the first amount of time, to re-measure the magnitude of electrical polarization.

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