Method and system to detect atrial flutter waves in cardiac activity signals

Abstract

A method and system are provided for detecting arrhythmias in cardiac activity. The method the method and system, under control of one or more processors configured with specific executable instructions, obtain cardiac activity (CA) signals for a series of beats, build a QRS-T template based on an ensemble of QRS complexes within the CA signals, and subtract the QRS-T template from the CA signals to obtain QRS-T scrubbed CA signals. The method and system determine an atrial flutter (AFL) timing feature within the QRS scrubbed CA signals, and declare an AFL episode based on a relation between the AFL timing feature and an AFL cluster criteria.

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