Aschauer et al reported a tool for predicting survival of a patient having an out-of-hospital cardiac arrest. The score was simplified The authors are from the Medical University of Vienna.
Patient selection: out-of-hospital cardiac arrest
Outcome: 30-day mortality
Parameters:
(1) min2srosc (minutes between cardiac arrest and return of spontaneous circulation
(2) age in years
(3) shockable rhythm
(4) adrenaline dose in mg
Parameter
Finding
Points
age group
<= 40 years
11
40.01 to 50 years
16
50.01 to 60 years
20
60.01 to 70 years
23
70.01 to 80 years
27
> 80 years
32
adrenaline dose
0
0
0.001 to 1 mg
1
1.001 to 2 mg
2
2.001 to 3 mg
4
3.01 to 4 mg
5
4.01 to 5 mg
7
5.01 to 10 mg
12
> 10 mg
24
minutes to ROSC
0 minutes
0
0.01 to 10 minutes
1
10.01 to 20 minutes
4
20.01 to 30 minutes
7
30.01 to 40 minutes
10
40.01 to 50 minutes
13
50.01 to 100 minutes
21
> 100 minutes
35
shockable rhythm
no
0
yes
-15
where:
• The entries for > 50 and> 60 years appear to be reversed. In the linear model age is a continuous variable.
total score =
= SUM(points for all of the parameters)
Interpretation:
• mnimum score: -4
• maximum score: 91
Score
Mortality
< 13
10%
13 to 22
30%
23 to 30
50%
31 to 40
70%
> 40
90%
Performance:
• The area under the ROC curve is 0.821.
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