초록 ▼

A method and apparatus for treating an arrhythmia is provided. The method includes the steps of: (a) sensing at least one electrical signal from the patient's heart; (b) calculating a frequency spectrum of each electrical signal; (c) calculating a center frequency for each frequency spectrum; and (

A method and apparatus for treating an arrhythmia is provided. The method includes the steps of: (a) sensing at least one electrical signal from the patient's heart; (b) calculating a frequency spectrum of each electrical signal; (c) calculating a center frequency for each frequency spectrum; and (d) selecting an electro-therapy for delivery to the patient's heart based on the center frequency. The electro-therapy can be a pre-programmed anti-tachycardia pacing (ATP) therapy, a shock therapy, or no therapy at all. The method is performed through the use of an implantable cardioverter defibrillator (ICD). Also provided is a method of determining the optimal location to deliver the electro-therapy.

대표청구항 ▼

What is claimed is: 1. A method of choosing amongst a plurality of electro-therapies for delivery to a patient's heart, comprising: (a) sensing a plurality of electrical signals from a plurality of electrodes disposed at a plurality of locations with respect to the patient's heart; (b) calculating

What is claimed is: 1. A method of choosing amongst a plurality of electro-therapies for delivery to a patient's heart, comprising: (a) sensing a plurality of electrical signals from a plurality of electrodes disposed at a plurality of locations with respect to the patient's heart; (b) calculating a frequency spectrum for each of the plurality of electrical signals; (c) calculating a center frequency for each of the frequency spectrums; (d) calculating a global median frequency based on the calculated center frequencies; and (e) selecting an electro-therapy for delivery to the patient's heart based on the global median frequency. 2. A method according to claim 1, wherein step (e) comprises selecting an anti-tachycardia pacing therapy for delivery to the heart if the global median frequency is below approximately 6 Hz. 3. A method according to claim 1, wherein step (e) comprises selecting a shock therapy for delivery if the global median frequency is greater than about 10 Hz. 4. The method of claim 2 further comprising: selecting the electrode with the maximum center frequency; and delivering the anti-tachycardia pacing therapy through the selected electrode. 5. The method of claim 1 further comprising, prior to step (a), detecting a heart rate indicative of an arrhythmia. 6. The method of claim 5 further comprising, using one of the plurality of electrodes to detect the heart rate. 7. A device comprising: a plurality of electrodes adapted to be disposed at a plurality of locations with respect to a patient's heart; sensors adapted to sense electrical signals from the plurality of electrodes; and a processor programmed to: calculate a frequency spectrum for each of the plurality of electrical signals; calculate a center frequency for each of the frequency spectrums; calculate a global median frequency based on the calculated center frequencies; and select an electro-therapy for delivery to the patient's heart based on the global median frequency.