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    • 1. 发明授权
    • Detection of tachyarrhythmia termination
    • 检测快速性心律失常终止
    • US07103404B2
    • 2006-09-05
    • US10375457
    • 2003-02-27
    • Robert W. StadlerEduardo N. WarmanJames H. EricksenReece W. Holbrook
    • Robert W. StadlerEduardo N. WarmanJames H. EricksenReece W. Holbrook
    • A61B5/0452A61N1/37
    • A61N1/3622
    • Determining termination of an identified tachyarrhythmia episode may involve analysis of a relative decrease in tachyarrhythmia rate, a normalization of electrogram morphology criteria, or both. An implanted medical device may obtain a tachyarrhythmia rate and a morphology of a cardiac waveform. The device may compare the tachyarrhythmia rate to a threshold tachyarrhythmia rate and the morphology to a template morphology, and classify the heart beat as indicating termination of the tachyarrhythmia episode when the tachyarrhythmia rate is less than the threshold tachyarrhythmia rate, the morphology categorizes as normal, or both. For arrhythmias with no therapy delivered, observation of arrhythmia behavior at the point of termination may lead to improved classification. In addition, observation of a relative decrease in tachyarrhythmia rate immediately after therapy application can lead to application of slower but more specific criteria for redetection. Also, delivery of cardioversion shocks can be aborted upon tachyarrhythmia termination.
    • 确定确定的快速性心律失常发作的终止可能涉及快速心律失常率相对降低的分析,电描记图形态学标准的归一化或两者。 植入的医疗装置可以获得心律失常速率和心脏波形的形态。 该装置可以将快速性心律失常率与阈值快速性心律失常率和形态学比较为模板形态,并且当心律失常发生率低于阈值快速性心律失常率时,将心跳分类为指示快速性心律失常发作的终止,形态分类为正常, 或两者。 对于没有治疗的心律失常,在终止时观察心律失常行为可能导致分类改善。 另外,在治疗后立即观察到快速性心律失常发生率的相对降低可导致应用较慢但更具体的重新检测标准。 此外,快速性心律失常终止时,心脏复律冲击的输送可以中止。