Filter
Top Products
70 Stratos LV/LV-T Technical Manual
During biventricular pacing in the Stratos CRT-Ps, the right
ventricle is paced first. Starting from the initially paced chamber
(RV), the intraventricular conduction time (VV delay) is
permanently set to 5 ms after a right ventricular sensed or paced
event.
NOTE:
While ventricular pacing and sensing events are
synchronized, synchronization does not occur during
ventricular extrasystoles.
The following table presents in detail the effects of the standard
pacing modes with the biventricular modes:
Table 19. Biventricular Pacing Modes
Biventricular Pacing Modes
(BiV RV RV/T)
DDD
VDD
DDI
VDI
VVI
DDD
VDD
DDI
VDI
RVs inhibits RVp X X X X X X X X X
RVs triggers LVp X X X X X X X X X
2.3 Timing Functions
The availability of parameters and parameter values is
determined by the software used for programming / interrogating
the CRT-Ps.
2.3.1 Basic Rate
The basic rate is the pacing rate in the absence of an intrinsic
rhythm and is programmable up to 180 ppm. The interval for the
basic rate is the time between two pacing pulses and is thus
called the basic interval.
The basic rate is programmable:
32… (1)…60… (1)…88… (2)…122… (3)…140… (5)…180 ppm.
In atrial-controlled modes, the basic interval is started by an
atrial event. In atrial-controlled, dual-chamber modes, the basic
interval is also started by a ventricular extrasystole.