BLENDING CARDIAC RHYTHM DETECTION PROCESSES
First Claim
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1. A method for classifying a tachyarrhythmia in a heart, the method comprising:
- sensing, at a patient device, one or more sequences of atrial and ventricular contractions associated with the tachyarrhythmia;
selecting, at the patient device, one or more template patterns of respective sequences of atrial and ventricular contractions; and
obtaining, at the patient device, a first classification of the tachyarrhythmia based on whether a match exists between the one or more sequences of atrial and ventricular contractions and the one or more template patterns.
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Abstract
Systems and methods are described for classifying a cardiac rhythm. A cardiac rhythm is classified using a classification process that includes a plurality of cardiac rhythm discriminators. Each rhythm discriminator provides an independent classification of the cardiac rhythm. The classification process is modified if the modification is likely to produce enhanced classification results. The rhythm is reclassified using the modified classification process.
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Citations
20 Claims
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1. A method for classifying a tachyarrhythmia in a heart, the method comprising:
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sensing, at a patient device, one or more sequences of atrial and ventricular contractions associated with the tachyarrhythmia; selecting, at the patient device, one or more template patterns of respective sequences of atrial and ventricular contractions; and obtaining, at the patient device, a first classification of the tachyarrhythmia based on whether a match exists between the one or more sequences of atrial and ventricular contractions and the one or more template patterns. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A tachyarrhythmia detection and classification system, comprising:
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a sensing circuit, adapted to sense at least one cardiac signal; and a control system, coupled to the sensing circuit, the control system including; an arrhythmia classification processor adapted to detect a tachyarrhythmia based on a heart rate obtained from the at least one cardiac signal; and an rhythm discriminator adapted to obtain a first classification of a tachyarrhythmia as either ventricular tachycardia (VT) or supraventricular tachycardia (SVT) using one or more template patterns of respective sequences of atrial and ventricular contractions based on whether a match exists in a sequence of atrial and ventricular depolarizations detected by the arrhythmia detection module. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A machine-readable storage medium comprising instructions, which when executed by a machine, cause the machine to:
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sense one or more sequences of atrial and ventricular contractions associated with the tachyarrhythmia; select one or more template patterns of respective sequences of atrial and ventricular contractions; and obtain a first classification of the tachyarrhythmia based on whether a match exists between the one or more sequences of atrial and ventricular contractions and the one or more template patterns. - View Dependent Claims (19, 20)
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Specification