ANI Monitor V2 - Continuous analgesia monitoring system
MD/PRD/IN16.ANIV2 v.07 - 12 MAR 2020
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5.3
ANI index
We have developed calculation algorithms based on the amplitude measurement of the
respiratory modulation of RR interval time series.
A continuous index is displayed (each basic measurement is performed on 64 seconds of
data with a sliding window every second) that reflects the parasympathetic tone of the
patient. A calculation is made every second and then averaged over two time periods: a short
average (average over two minutes) and a longer average (average over 4 minutes). The
monitor displays two parameters: the yellow one is the inst
antaneous ANI (marked as “i”),
resulting from the short average; the orange one is the value of the longer average (marked
as “m”). These indexes can anticipate a hemodynamic reactivity during the nociceptive
stimuli. “
Index
Therefore we display in the adjoining window of trends, a yellow curve and an orange curve
reflecting these two indexes over time.
Average ANI
Instantaneous ANI
