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  • FRANÇAIS, page 148
78
Figure 16: Reaction of the upper tracking rate during atrial tachycardia 
(basic rate 72 ppm).
WARNING!
Pacing Modes and Parameters
The total atrial refractory period (TARP) of Reocor D is
calculated by the sum of 175 ms and the programmed
AV delay; however, its minimum value is 400 ms below
a pacing rate of 120 ppm. Above this rate, the mini-
mum TARP is reduced to 240 ms.
The ventricular refractory period VRP of Reocor D
depends on the pacing rate:
Pacing rate
Under 150 ppm
150 ppm to 200 ppm
Over 200 ppm

Rate

The rate can be continuously adjusted from 30 ppm to
250 ppm with the Rate control dial (18). If a value
greater than 180 ppm is set, the device will sound a
warning signal for two seconds.
Pacing the heart with rates higher than 180 ppm over
a long time period can cause severe hemodynamic
complications. Pacing with high rates should only be
performed when continuous monitoring is ensured.
Refractory period VRP
225 ms
200 ms
175 ms

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