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Automatic adjusting R-wave synchronization algorithm for atrial cardioversion and defibrillation
Automatic adjusting R-wave synchronization algorithm for atrial cardioversion and defibrillation
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机译:心房电复律和除颤的自动调整R波同步算法
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摘要
An implantable medical device system and method are provided for synchronizing atrial cardioversion shocks to the ventricular rhythm using an adjustable atrial cardioversion/defibrillation ventricular refractory period. Upon determining a need for an atrial shock therapy, the method determines if the ventricular rate meets synchronization criteria based on an upper ventricular refractory period limit. If synchronization criteria are not met, the refractory period is automatically adjusted in stepwise decrements until the synchronization criteria are met, or until a lower refractory period limit is exceeded. If synchronization criteria are met, an atrial shock is synchronized to the next ventricular depolarization occurring outside the current refractory period. If the lower refractory period limit is exceeded, the atrial therapy is aborted.
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