Method for delivering atrial defibrillation therapy
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United States of America Patent
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-
Feb 3, 2004
Grant Date -
May 8, 2003
app pub date -
Dec 30, 2002
filing date -
Sep 14, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus and method for delivering electrical shock therapy in order to treat atrial tachyarrhythmias such as fibrillation is disclosed. In accordance with the method, atrial defibrillation shocks are delivered synchronously with an R wave if the current R-R interval meets one or more safety criteria so as to be considered shockable. A shockable R-R interval may be defined as one that exceeds the previous QT interval by a specified therapy margin. In one embodiment, the previous QT interval is estimated based upon the measured preceding R-R interval.
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