Implantable heart stimulator and method for trending analysis of ventricular activation time
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United States of America Patent
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Dec 15, 2015
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Apr 18, 2012
filing date -
May 12, 2011
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Abstract
Exemplary versions of the invention include methods and apparatuses for assessing ventricular activation time by determining a point in time t1 of an initial positive deflection on a far-field electrogram and a point in time t2 of a first peak of the negative deflection on a near-field electrogram of a same heart cycle. They also determine a time difference between points in time t1 and t2 said time difference representing the ventricular activation time. A progression of ventricular conduction disorders such as the left bundle branch block (LBBB) and the right bundle branch block (RBBB) can be monitored. Trending analysis of the ventricular activation time provides a means for monitoring the progression of ventricular conduction diseases.
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