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Serum tau and neurological outcome in cardiac arrest.

Artikel i vetenskaplig tidskrift
Författare Niklas Mattsson
Henrik Zetterberg
Niklas Nielsen
Kaj Blennow
Josef Dankiewicz
Hans Friberg
Gisela Lilja
Philip S Insel
Christian Rylander
Pascal Stammet
Anders Aneman
Christian Hassager
Jesper Kjaergaard
Michael Kuiper
Tommaso Pellis
Jørn Wetterslev
Matthew Wise
Tobias Cronberg
Publicerad i Annals of neurology
Volym 82
Nummer/häfte 5
Sidor 665-675
ISSN 1531-8249
Publiceringsår 2017
Publicerad vid Institutionen för kliniska vetenskaper, Avdelningen för anestesiologi och intensivvård
Institutionen för neurovetenskap och fysiologi, sektionen för psykiatri och neurokemi
Sidor 665-675
Språk en
Länkar dx.doi.org/10.1002/ana.25067
www.ncbi.nlm.nih.gov/entrez/query.f...
Ämneskategorier Neurokemi

Sammanfattning

To test serum tau as a predictor of neurological outcome after cardiac arrest.We measured the neuronal protein tau in serum at 24, 48, and 72 hours after cardiac arrest in 689 patients in the prospective international Target Temperature Management trial. The main outcome was poor neurological outcome, defined as Cerebral Performance Categories 3-5 at 6 months.Increased tau was associated with poor outcome at 6 months after cardiac arrest (median = 38.5, interquartile range [IQR] = 5.7-245ng/l in poor vs median = 1.5, IQR = 0.7-2.4ng/l in good outcome, for tau at 72 hours, p < 0.0001). Tau improved prediction of poor outcome compared to using clinical information (p < 0.0001). Tau cutoffs had low false-positive rates (FPRs) for good outcome while retaining high sensitivity for poor outcome. For example, tau at 72 hours had FPR = 2% (95% CI = 1-4%) with sensitivity = 66% (95% CI = 61-70%). Tau had higher accuracy than serum neuron-specific enolase (NSE; the area under the receiver operating characteristic curve was 0.91 for tau vs 0.86 for NSE at 72 hours, p = 0.00024). During follow-up (up to 956 days), tau was significantly associated with overall survival. The accuracy in predicting outcome by serum tau was equally high for patients randomized to 33 °C and 36 °C targeted temperature after cardiac arrest.Serum tau is a promising novel biomarker for prediction of neurological outcome in patients with cardiac arrest. It may be significantly better than serum NSE, which is recommended in guidelines and currently used in clinical practice in several countries to predict outcome after cardiac arrest. Ann Neurol 2017;82:665-675.

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