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DISCRIMINATION OF SUPRAVENTRICULAR TACHYCARDIAS IN COMBINED CCM-ICD DEVICE
DISCRIMINATION OF SUPRAVENTRICULAR TACHYCARDIAS IN COMBINED CCM-ICD DEVICE
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机译:CCM-ICD装置组合中的髁上心动过速的辨别
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摘要
During a cardiac arrhythmia, defibrillation shocks from an implanted cardiac defibrillator are suppressed based on the sensing of electrical wavefront arrival times which indicate a supraventricular origin to the cardiac arrhythmia. In some embodiments, times of electrical wavefront arrival in at least two ventricular locations of the heart are sensed; one location being relatively superior, and one relatively inferior (e.g., relatively superior and inferior locations of a ventricular septum). In some embodiments, if the arrival time at the more inferior position is within a predetermined interval after arrival at the more superior position, delivery of defibrillation shocks are suppressed. In some embodiments, additional sensing of electrical wavefront arrival at one or more non-septal ventricular locations is performed, and defibrillation shock suppression is optionally itself suppressed if the additional sensing indicates that the wavefront initiated in a ventricular location.
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