User Manual Part 2

PACING THERAPIES
AV DELAY
5-33
The dynamic AV Delay is not adjusted following a PVC or when the previous
cardiac cycle was limited by the MTR .
When the atrial rate is between the LRL and the higher of the MTR and the
MSR, the pulse generator calculates the linear relationship to determine the
Dynamic AV Delay (Figure 5-14 on page 5-33).
Maximum
AV Delay
Minimum
AV Delay
Higher of MTR
and MSR interval
LRL Interval
Dynamic AV Delay
Figure 5-14. Dynamic AV Delay linear relationship
Dynamic AV Delay is activated during Paced AV Delay programming. The AV
delaymaybeprogrammedtoeitherafixed or dynamic value as follows:
• Fixed AV Delay—occurs when Paced AV Delay minimum and maximum
values are equal
• Dynamic AV Delay—occurs when Paced AV Delay minimum and maximum
values are not equal
Sensed AV Delay
Sensed AV Delay corresponds to the AV Delay after a sensed atrial event.
Sensed AV Delay may be programmed to a value shorter than or equal to the
Paced AV Delay. A shorter value is intended to compensate for the difference
in timing between paced atrial events and sensed atrial events (Figure 5-15 on
page 5-34).
- DRAFT -