Okada et al reported a score for predicting the neurological outcome for a patient undergoing extracorporeal cardiopulmonary resuscitation (ECPR) following out-of-hospital cardiac arrest. The authors are from multiple hospitals in Japan.
Patient selection: out-of-hospital cardiac arrest, age >= 18 years
Parameters:
(1) time from to collapse to hospital arrival in minutes
(2) arterial pH
(3) shockable on hospital arrival (ventricular fibrillation or pulseless ventricular tachycardia)
(4) age in years
Parameter
Finding
Points
time from call to arrival
<= 25 minutes
1
> 25 minutes
0
arterial pH
< 7.0
0
>= 7.0
1
shockable on arrival
no
0
yes
1
age in years
< 65 years
1
>= 65 years
0
total score =
= SUM(points for all 4 parameters)
Interpretation:
• minimum score: 0
• maximum score: 4
• The higher the score the better the outcome.
Score
Percent Favorable Neurological Outcome at 1 Month
0
2-4%
1
3-5%
2
12-15%
3 or 4
26-31%
Performance:
• The area under the ROC curve is 0.72.
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