Patent ID: 8688204

Claim:
A cardiac system, comprising: an implantable sensing system configured to sense first electrogram signals during a first period of time and to sense second electrogram signals during a second period of time; a tachyarrhythmia detector configured to detect intrinsic tachyarrhythmia episodes using the first electrogram signals and to detect an induced tachyarrhythmia episode using the second electrogram signals; a data processor configured to: identify intrinsic tachyarrhythmia episode types based on a comparison of morphological characteristics extracted from the first electrogram signals with morphological characteristics extracted from the second electrogram signals of the induced tachyarrhythmia episode that determines a similarity between the induced tachyarrhythmia episode and at least one intrinsic tachyarrhythmia episode type; determine a tachyarrhythmia burden for each of the identified intrinsic tachyarrhythmia episode types; and rank each of the identified intrinsic tachyarrhythmia episode types based on each of the associated tachyarrhythmia burdens; and a display configured to present information related to the similarity between the induced tachyarrhythmia episode and the at least one intrinsic tachyarrhythmia episode type.