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Stratos LV/LV-T Technical Manual 75
Repetitive Hysteresis is only available when Hysteresis is
selected on.
Magnet application (closing of reed switch) suspends 180
consecutive event counter independent of synchronous or
asynchronous magnet effect.
There is one Standard Hysteresis interval which occurs
before the programmable number of Repetitive Hysteresis
occurs.
The repetitive rate hysteresis is deactivated in the standard
setting, but can be programmed to 1… (1) …15 cycles.
2.3.5 Night Mode
Programmable Night Time Begin and End in 10 minute steps.
The Night Mode feature allows a temporary reduction of the
base rate during normal sleeping hours. If selected, the base
rate is gradually and temporarily reduced to the programmed
night pacing rate. At the end of night mode, the base rate
gradually returns to the original values.
The Night Mode feature has been incorporated to allow the
patients spontaneous night rhythm and may reduce pulse
generator energy consumption.
NOTES:
Over time, the Stratos CRT-Ps internal time-of-day clock
may exhibit a discrepancy with the actual time (less than 1
hour per year). This may cause a corresponding
discrepancy between the programmed sleep and wake times
and the actual times that the system changes the rate.
The programmer automatically updates the CRT-P time-
of-day clock each time the device is programmed.
The actual time when the respective increase or decrease in
rate occurs may begin up to 4 minutes after the programmed
time because of internal device timing.
The rate (ppm/s) at which Night Mode decreases and
increases is a function of the Sensor Gain decrease and
increase parameters.