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System and method for changing device parameters to control cardiac hemodynamics in a patient

  • US 9,717,915 B2
  • Filed: 03/11/2014
  • Issued: 08/01/2017
  • Est. Priority Date: 03/13/2013
  • Status: Active Grant
First Claim
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1. A method for pacing a heart of a patient via an implantable pacing device, the method comprising:

  • during a first period of time, delivering electrical pacing to at least one of an atrium or a ventricle of the heart to increase the left ventricular contractility to produce an increased cardiac output; and

    determining a second period of time when an activity level of the patient is less than an activity level of the patient during the first period of time, delivering the electrical pacing stimulation in response to detecting the second period of time to decrease the left ventricular contractility to a specified fraction of the left ventricular contractility achieved during the first period of time to produce a reduced cardiac output.

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