Mintek LV Manuale Utente

98  Stratos LV/LV-T Technical Manual   

Regardless of the sensor signal amplitude, the pacing rate 
during sensor-driven operation will never exceed the 
programmed maximum activity rate (MAR).  The maximum 
activity rate only limits the pacing rate during sensor-driven 
operation and is independent of the rate limit.  The rate increase 
and rate decrease parameters are upper rate limited by the MAR 
and lower rate limited by the basic rate (night rate) (MAR, 
standard setting 120 

ppm, programmable: 90 ppm… (5) 

…180 ppm). 

The pacing rate is determined by the highest rate from the 
parameters of rate adaptation, the overdrive rate and the 
post-AES rate. 

The “rate decay” is set to a standard value of 0.5 ppm/cycle and 
is programmable (0.25… (0.25)…1.25 ppm/cycle). 

The programmed rate decrease setting applies only to the 
decrease in pacing rate during sensor-driven operation and does 
not affect the pacing rate during atrial triggered ventricular 
pacing. 

Even when a non-rate adaptive mode is programmed, the 
behavior of the sensor is recorded if a rate-adaptive mode has 
been selected in the Mode Switching mode.  The rate-adaptive 
mode is only effective in Mode Switching.  The sensor 
stimulation indicates how a sensor would have reacted with the 
displayed sensor setting if a rate-adaptive mode had been 
programmed.   

This function is helpful to find the optimum sensor settings and to 
compare the sensor rate with the intrinsic rate.  When rate 
adaptation is activated, sensor data are available that can be 
used to evaluate the sensor behavior. 

In the sensor stimulation, only values for the sensor 
threshold that are greater than those used for the permanent 
program maybe selected.