RATE ABERRANT BEAT SELECTION AND TEMPLATE FORMATION
First Claim
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1. A method comprising:
- monitoring an intrinsic electrical cardiac signal;
deriving depolarization morphology information for candidate arrhythmic beats in an arrhythmia episode of the intrinsic electrical cardiac signal;
selecting at least one of the candidate arrhythmic beats for use in forming an arrhythmic beat morphology template representative of the episode, the selecting including using information obtained from comparing at least one of a beat morphology, a cardiac cycle interval, a beat amplitude, and a rate zone classification of a candidate arrhythmic beat to respective information about the beat morphology, the cardiac cycle interval, the beat amplitude, and the rate zone classification of at least one other selected candidate arrhythmic beat from the arrhythmia episode; and
forming the arrhythmic beat morphology template from depolarization morphology information of at least one of the selected candidate arrhythmic beats.
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Abstract
A cardiac rhythm management system can be used to detect episode beats associated with cardiac events in a subject'"'"'s body. These events may be monitored and depolarization morphology information can be derived for candidate arrhythmic beats in an arrhythmia episode. An arrhythmic beat morphology template may be formed from selecting at least one of the candidate arrhythmic beats based upon user'"'"'s labeling according to specific morphologies of one or more candidate episodes. Methods of use are also presented.
105 Citations
30 Claims
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1. A method comprising:
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monitoring an intrinsic electrical cardiac signal; deriving depolarization morphology information for candidate arrhythmic beats in an arrhythmia episode of the intrinsic electrical cardiac signal; selecting at least one of the candidate arrhythmic beats for use in forming an arrhythmic beat morphology template representative of the episode, the selecting including using information obtained from comparing at least one of a beat morphology, a cardiac cycle interval, a beat amplitude, and a rate zone classification of a candidate arrhythmic beat to respective information about the beat morphology, the cardiac cycle interval, the beat amplitude, and the rate zone classification of at least one other selected candidate arrhythmic beat from the arrhythmia episode; and forming the arrhythmic beat morphology template from depolarization morphology information of at least one of the selected candidate arrhythmic beats. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus comprising:
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means for monitoring an intrinsic electrical cardiac signal; means for deriving depolarization morphology information for candidate arrhythmic beats in an arrhythmia episode of the intrinsic electrical cardiac signal; means for selecting at least one of the candidate arrhythmic beats for use in forming an arrhythmic beat morphology template representative of the episode, the selecting including using information obtained from comparing at least one of a cardiac cycle interval, a beat amplitude, and a rate zone classification of a candidate arrhythmic beat to respective information about the cardiac cycle interval, the beat amplitude, and the rate zone classification of at least one other selected candidate arrhythmic beat from the arrhythmia episode; and means for forming the arrhythmic beat morphology template by combining depolarization morphology information of at least two of the selected candidate arrhythmic beats.
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20. An apparatus comprising:
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an intrinsic electrical cardiac signal sensing circuit; a depolarization morphology storage circuit, coupled to the sensing circuit, the depolarization morphology storage circuit configured for storing depolarization morphology information for candidate arrhythmic beats in an arrhythmia episode; and a processor circuit, coupled to the depolarization morphology storage circuit, the processor circuit comprising; an arrhythmic beat morphology template; a candidate arrhythmic beat selector circuit, configured to select at least one of the candidate arrhythmic beats for use in forming the arrhythmic beat morphology template representative of the episode, the selecting including using information obtained from comparing at least one of a cardiac cycle interval, a beat amplitude, and a rate zone classification of a candidate arrhythmic beat to respective information about the cardiac cycle interval, the beat amplitude, and the rate zone classification of at least one other selected candidate arrhythmic beat from the arrhythmia episode; and a beat morphology aggregator circuit, coupled to form the arrhythmic beat morphology template by combining depolarization morphology information of at least two of the selected candidate arrhythmic beats. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification