Symbol
Diastolic Fine
Final diastolic value
Systolic Fine
Final systolic value
Steps
Estimation of the steps taken by the patient during the test
VMU**
Number of movements made by the patient during the test
O2-GAP***
Estimation of the percentage of oxygen to administer to the patient
O2
percentage of oxygen administered to the patient before test
SPO2 Base
SPO2 base value for the SPO2 and ODI tests
BPM Base
BPM base value for the SPO2 and ODI tests
ODI
Desaturation events per hour of analysis
Mean Dur.
Average duration of the desaturation event
Desat.
Tot Desaturat.
Number of desaturation events during the entire analysis period
Longest Desat.
Duration of the longest desaturation event
Desatur. Peak
Minimum SpO2 value during a desaturation event
BPM Index
Number of events of variation of the Pulse rate per hour of a analysis
Mean Desaturat. Average of the desaturation troughs
Mean Drop
Average SpO2 fall compared to the base value during the desaturation events
Max Drop
Maximum fall in the SpO2 compared to the saturation events
BPM Variation
Number of variations in the Pulse Rate during the entire analysis period
Number of events with SpO2<4% compared to the SpO2 base value for a continuous period of at
NOD4%
least 5 minutes
NOD89%
Number of events with SpO2<89% for a continuous period of at least 5 minutes
Number of events with SpO2<90% for a continuous period of at least 5 minutes with min value
NOD90%
<86% (Nadir)
Time with SpO2<4% compared to the SpO2 base value for a continuous period of at least 5
t.NOD4%
minutes
t.NOD89%
Time with SpO2<89% for a continuous period of at least 5 minutes
t.NOD90%
Time with SpO2<90% for continuous periods of at least 5 minutes with mim value <86% (Nadir)
*Below is a description of the method for calculating the area below the SpO2 baseline curve:
** "index movement". The parameter is expressed in VMU and is used to quantify patient movement during oximetry testing.
*** O
GAP index estimates the percentage of oxygen to be administered to a patient by using the (6MWT).
2
The following table lists all the symbols used for the parameters in the service menu under item "Set parameters" describing to which
test each is related to and if optional:
Symbol
%SPO2 min
%SPO2 max
BPM min
BPM max
%SPO2 mean
BPM mean
T Total
T Analysis
T<90%
T<89%
T<88%
T<87%
Ev%SPO2<89
Δ Index
T<40BPM
SPIRODOC
Description
Symbol in menu "Set parameters"
\
\
\
\
\
\
\
\
T<90%
T<89%
T<88%
T<87%
Ev%SPO2<89
Δ INDEX
t<40BPM
cod. 980156
Rev 4.2.1
Test
Optional
all
no
all
no
all
no
all
no
all
no
all
no
all
no
all
no
all
yes
all
yes
all
yes
all
yes
all
yes
all
yes
all
yes
EN 17/48
spirodoc
User manual
Units
mmHg
mmHg
/
/
%
L/min-%
%
BPM
1/h
s
/
s
%
/
s
s
s
/
/
/
/
hh:mm:ss
hh:mm:ss
hh:mm:ss