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. 2016 Apr:101:65-70.
doi: 10.1016/j.resuscitation.2016.01.024. Epub 2016 Feb 6.

Exploratory study of serum ubiquitin carboxyl-terminal esterase L1 and glial fibrillary acidic protein for outcome prognostication after pediatric cardiac arrest

Ericka L Fink  1 , Rachel P Berger  2 , Robert S B Clark  3 , R Scott Watson  4 , Derek C Angus  5 , Ashok Panigrahy  6 , Rudolph Richichi  7 , Clifton W Callaway  8 , Michael J Bell  3 , Stefania Mondello  9 , Ronald L Hayes  10 , Patrick M Kochanek  3
Affiliations

Exploratory study of serum ubiquitin carboxyl-terminal esterase L1 and glial fibrillary acidic protein for outcome prognostication after pediatric cardiac arrest

Ericka L Fink et al. Resuscitation. 2016 Apr.

Abstract

Introduction: Brain injury is the leading cause of morbidity and death following pediatric cardiac arrest. Serum biomarkers of brain injury may assist in outcome prognostication. The objectives of this study were to evaluate the properties of serum ubiquitin carboxyl-terminal esterase-L1 (UCH-L1) and glial fibrillary acidic protein (GFAP) to classify outcome in pediatric cardiac arrest.

Methods: Single center prospective study. Serum biomarkers were measured at 2 time points during the initial 72 h in children after cardiac arrest (n=19) and once in healthy children (controls, n=43). We recorded demographics and details of the cardiac arrest and resuscitation. We determined the associations between serum biomarker concentrations and Pediatric Cerebral Performance Category (PCPC) at 6 months (favorable (PCPC 1-3) or unfavorable (PCPC 4-6)).

Results: The initial assessment (time point 1) occurred at a median (IQR) of 10.5 (5.5-17.0)h and the second assessment (time point 2) at 59.0 (54.5-65.0)h post-cardiac arrest. Serum UCH-L1 was higher among children following cardiac arrest than among controls at both time points (p<0.05). Serum GFAP in subjects with unfavorable outcome was higher at time point 2 than in controls (p<0.05). Serum UCH-L1 at time point 1 (AUC 0.782) and both UCH-L1 and GFAP at time point 2 had good classification accuracy for outcome (AUC 0.822 and 0.796), p<0.05 for all.

Conclusion: Preliminary data suggest that serum UCH-L1 and GFAP may be of use to prognosticate outcome after pediatric cardiac arrest at clinically-relevant time points and should be validated prospectively.

Keywords: Biomarker; Brain injury; Cardiac arrest; Outcomes; Pediatric.

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Conflict of interest statement

Conflict of Interest Statement

The other co-authors have nothing to disclose.

Figures

Figure 1
Figure 1
1a and 1b. Median serum biomarker concentrations (ng/ml) by outcome and time point. UCH-L1, ubiquitin carboxyl-terminal esterase L1; GFAP, glial fibrillary acidic protein 1 Control vs. cardiac arrest with favorable outcome, p<0.05 2 Control vs. cardiac arrest with unfavorable outcome, p<0.05 3 Cardiac arrest with favorable vs. unfavorable outcome, p<0.05
See this image and copyright information in PMC

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