Atrial fibrillation detection
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United States of America Patent
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Jun 19, 2018
Issued Date -
Oct 6, 2016
app pub date -
Mar 28, 2016
filing date -
Apr 2, 2015
priority date (Note) -
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Abstract
An apparatus includes a sensing circuit configured to generate a sensed physiological signal representative of cardiac activity of a subject, and an arrhythmia detection circuit. The arrhythmia detection circuit is configured to monitor information corresponding to ventricular depolarization (V-V) intervals using the sensed physiological signal; determine a V-V interval distribution; determine a heart rate density index (HRDI) as a portion of samples of the V-V interval distribution corresponding to a V-V interval occurring most often in the distribution; and generate an indication of atrial fibrillation (AF) using the HRDI.
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