spirodoc
SPIRODOC
cod. 980156
Rev 2.4
EN 12/46
User manual
Symbol
Description
Units
%SPO2 end
Final SPO2 reading during walking phase
%
BPM end
Final BPM reading during walking phase
BPM
%SPO2 Base
Initial phase SPO2 base value, before walking test
%
BPM start
Initial phase BMP base value, before walking test
BPM
T Baseline
Duratation of base phase
hh:mm:ss
T Walking
Duration of walking phase
hh:mm:ss
T Recovery
Duration of recovery phase
hh:mm:ss
Distance
Distance covered
m
T2%Δ SPO2
Time spent during the walking test, with SpO2<2% compared to the SpO2 base value
hh:mm:ss
T4%Δ SPO2
Time spent during the walking test, with SpO2<4% compared to the SpO2 base value
hh:mm:ss
Predicted
Standard predicted distance
m
Predicted min
Minimum predicted distance
m
% Predicted
% variation of the distance covered compared to the standard predicted distance
%
%Predicted min
% variation of the distance covered compared to the minimum predicted distance
%
AUC/Distance*
Area below the SpO2 base curve compared to the distance covered
/
Dyspnea Base
Degree of breathlessness prior to the walking test
Borg
Dyspnea End
Degree of breathlessness at the end of the walking test
Borg
Dyspnea CHG
Variation in the degree of breathlessness during the walking test
/
Fatigue Base
Degree of tiredness prior to the walking test
Borg
Fatigue End
Degree of tiredness at the end of the walking test
Borg
Fatigue CHG
Variation in the degree of tiredness during the walking test
/
Diastolic Base
Starting diastolic value
mmHg
Systolic Base
Starting systolic value
mmHg
Diastolic Fine
Final diastolic value
mmHg
Systolic Fine
Final systolic value
mmHg
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
L/min-%
SPO2 Base
SPO2 base value for the SPO2 and ODI tests
%
BPM Base
BPM base value for the SPO2 and ODI tests
BPM
ODI
Desaturation events per hour of analysis
1/h
Mean Dur. Desat. Average duration of the desaturation event
s
Tot Desaturat.
Number of desaturation events during the entire analysis period
/
Longest Desat.
Duration of the longest desaturation event
s
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
s
Mean Drop
Average SpO2 fall compared to the base value during the desaturation events
s
Max Drop
Maximum fall in the SpO2 compared to the saturation events
s
BPM Variation
Number of variations in the Pulse Rate during the entire analysis period
/
NOD4%
Number of events with SpO2<4% compared to the SpO2 base value for a continuous period of at least 5
minutes
/
NOD89%
Number of events with SpO2<89% for a continuous period of at least 5 minutes
/
NOD90%
Number of events with SpO2<90% for a continuous period of at least 5 minutes with min value <86% (Nadir)
/
t.NOD4%
Time with SpO2<4% compared to the SpO2 base value for a continuous period of at least 5 minutes
hh:mm:ss
t.NOD89%
Time with SpO2<89% for a continuous period of at least 5 minutes
hh:mm:ss
t.NOD90%
Time with SpO2<90% for continuous periods of at least 5 minutes with mim value <86% (Nadir)
hh:mm:ss
*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
2
GAP index estimates the percentage of oxygen to be administered to a patient by using the (6MWT) For more information please refer to the
publication: “The six minute walk test (6MWT) can predict O2 flows required to prevent exercise-induced O2 desaturation”; Authors: G. Pezzuto, L.
