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Stratos LV/LV-T Technical Manual 65
Table 18: Timing Intervals
Event Timing
Interval
Ap As As
(PMT)
Vp Vsp VS VES
AV delay X X
Safety AV delay X
Interference
interval (A)
X X
Interference
interval (V)
X X
Blanking time
(A) after Ap
X
Blanking time
(V) after RVp
X X
Atrial upper rate
(AUR)
X
Far-field
Protection (A)
X X X X
PMT Protection
(A)
X X
X
PMT protection
extension (A)
X
Trigger Pacing
The triggered pacing modes are identical to the respective
demand modes except that the sensing of an atrial/ventricular
event outside of the refractory period does not result in inhibition
of pacing, but instead a pacing pulse is delivered in the
respective chamber.
The corresponding pacing modes are:
Demand
Pacing
DDD VDD DDI DVI AAI VVI
Triggered
pacing
DDT VDT DDI/T DVT AAT VVT
However, the following differences exist. There is no AV safety
interval in DDT, DDI/T and DVT pacing modes. The safety
interval is unnecessary as “cross talk” (ventricular sensing of
atrial pulses) can not occur during these modes.