User Manual Part 1

3-22
TACHYARRHYTHMIA DETECTION
VENTRICULAR DETECTION
Detection window
satisfied.
Start End-of-
Episode timer.
Start Post-shock
Duration
End-of-Episode
timer resets to zero.
Detection met.
Start Charging.
Restart End-of-Episode timer. End-of-Episode times
out. Episode is over.
Charging
30 s
Shock Shock
Ventricular rate
remains fast.
Detection window does not become satisfied.
Right Ventricle
This example illustrates a Treated Episode when Ventricular m ode is Monitor + Therapy. The End-of-Ep isode timer is
reset to 0 when a ventricular detection window becomes satisfied after ventricular therapy delivery, b ut prior to the
episode time-out being reached. In this example, 2 shocks were delivered in the episode.
Figure 3-16. Treated episode, ven tricu lar mode is Monitor + Therapy an d End-of-Episode timer is reset to 0
Ventricular Detection Enhancements
Ventricular detection enhancements add specificity to th e Rate and Duration
detection criteria. You may program ventricular detection enhancements to
perform the following:
• Delay or inhibit therapy delivery
• Override therapy inhibition
• Bypass a sequence of ATP therapy in favor of shock therapy
Ventricular detection enhancements may be programmed to one of the
following:
•RhythmID
• Onset/Stability
• Off (i.e., ra te only)
If Off is selected, only the ventricular rate and duration are used for therapy
decisions.
- DRAFT -