Albaeni et al reported an out-of-hospital cardiac arrest (OHCA) score. This can help to identify patients with a better prognosis. The authors are from the Johns Hopkins University.
Patient selection: out-of-hospital cardiac arrest, >= 18 years
Cardiac arrest: absence of palpable central pulse, apnea and unresponsiveness
Outcome: good neurological outcome (Glasgow-Pittsburgh Cerebral Performance Categories 1 or 2).
Parameters:
(1) initial rhythm
(2) number of minutes to return of spontaneous circulation (ROSC)
(3) time to brainstem reflex score >= 3 (Geocadin et al, graded from 0 to 5)
Parameter
Finding
Points
initial rhythm
ventricular fibrillation or tachycardia
1
other
0
ROSC
<= 20 minutes
1
> 20 minutes
0
time to brainstem reflex >= 3
<= 24 hours
1
> 24 hours
0
total score =
= SUM(points for all 3 parameters)
Interpretation:
• minimum score: 0
• maximum score: 3
• The higher the score the better the outcome.
Score
Survival with Good Neurological Outcome
0
0%
1
12%
2
64%
3
86%
Performance:
• The area under the ROC curve was 0.84 in the derivation set and 0.92 in the validation set.
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