These enhancements provide a powerful diagnostic tool that helps guide physicians in therapy decisions. In the presence of atrial arrhythmias exceeding the programmed trigger rate and duration, the device switches from a dual-chamber tracking mode to a nontracking mode. SBR responds to sudden decreases in intrinsic atrial rates by applying dual-chamber pacing at an elevated rate. Data for the last 52 weeks is saved in the device memory. Also this feature is automatically enabled during Quick Check threshold testing.
Snapshots allow onscreen analysis of intracardiac EGMs.
Rate and sensor trending available with graphic display allows replay of rate based on new parameter settings. Continuous atrial and ventricular intracardiac EGMs and annotated event markers available during testing and follow-up simplify evaluation. Battery status is automatically evaluated every 11 hours. Separately programmable for increase and decrease. ATR Lower Rate Limit must be equal to or greater than the permanent Lower Rate Limit.