Apparatus and method for discriminating between heart rhythms wi

Details Apparatus and method for discriminating between heart rhythms wi Apparatus and method for discriminating between heart rhythms wi

1992-04-28

1994-07-12

Kamm, William E.

Surgery

Truss

Pad

A61B 50464

Patent

active

053279000

ABSTRACT:
An apparatus and a method for discriminating between tachycardias of physiological origin, and those of pathological origin having similar atrial and ventricular rates, are disclosed. The apparatus includes two sensing electrodes for registering the electrograms from the atrium and the ventricle of the heart. There is further included a signal processing element for determining the times of atrial and ventricular events, and an algorithm for classifying the heart rhythm. The algorithm includes a means for discriminating between different types of heart rhythms having overlapping ventricular rates and having similar atrial and ventricular rates. The method utilizes an analysis of the relationships between successive atrial and ventricular intervals (i.e., atrial-atrial (AA), ventricular-ventricular (VV) and atrial-ventricular (AV) intervals) in discriminating between such heart rhythms.

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