User's Manual

24
Pacing Types – Modes
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Figure 1: AV-sequential pacing in DDD mode without an intrinsic event
In the case of an atrial sensed or paced event, the AV delay starts
together with the basic interval. If a ventricular sensed event does not
occur within the AV delay, ventricular pacing is triggered at the end of
the AV delay. If ventricular sensing (V
S
) occurs within the AV delay, the
ventricular pulse delivery (V
P
) is inhibited.
Figure 2: An atrial sensed event restarts the basic interval
If atrial sensing occurs, atrial pacing is inhibited and the basic interval
is restarted (See Figure 2).