Patent ID: 10967187

Abstract:
Methods and devices are provided for sensing cardiac events from electrodes located proximate to one or more atrial or ventricular sites, over a period of time that includes a detection period followed by an observation period. One or more processors declare a ventricular arrhythmia episode and a corresponding VT/VF therapy based on the cardiac events during at least the detection period. The processors delay delivery of the VT/VF therapy for a self-termination period within the observation period. The self-termination period represents a time period during which the ventricular arrhythmia episode may self-terminate. The processors analyze a stability characteristic of interest (COI) from the cardiac events sensed over at least a portion the observation period and determine an end point for the self-termination period, within the observation period, based on the stability COI. The VT/VF therapy is delivered when the VT/VF arrhythmia episode continues past the end point.