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Methods and apparatus to stimulate heart atria

  • US 9,370,661 B2
  • Filed: 11/29/2012
  • Issued: 06/21/2016
  • Est. Priority Date: 09/08/2008
  • Status: Active Grant
First Claim
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1. A method for controllably reducing heart rate by pacing a heart of a patient having an atrium and a ventricle, the method comprising:

  • pacing, after a first ventricular contraction of the heart, an atrium of the heart, wherein the atrial pacing occurs after expiration of an atrial refractory period of the heart and during a ventricular refractory period of the heart; and

    causing an atrial contraction as a result of the atrial pacing,wherein the atrial contraction does not elicit a second ventricular contraction, andwherein the atrial contraction causes a vasodilation and a release of a natriuretic hormone in the heart.

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