S-100B is superior to NSE, BDNF and GFAP in predicting outcome of resuscitation from cardiac arrest with hypothermia treatment |
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Authors: | Mörtberg Erik Zetterberg Henrik Nordmark Johanna Blennow Kaj Rosengren Lars Rubertsson Sten |
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Institution: | a Department of Surgical Sciences, Anaesthesia and Intensive Care, Uppsala University, Uppsala University Hospital, Uppsala, Sweden b Department of Psychiatry and Neurochemistry, The Sahlgrenska Academy at the University of Gothenburg, Institute of Neuroscience and Physiology, Mölndal, Sweden c Department of Neurology, The Sahlgrenska Academy at the University of Gothenburg, Institute of Neuroscience and Physiology, Gothenburg, Sweden |
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Abstract: | ObjectiveTo conduct a pilot study to evaluate the blood levels of brain derived neurotrophic factor (BDNF), glial fibrillary acidic protein (GFAP), neuron specific enolase (NSE) and S-100B as prognostic markers for neurological outcome 6 months after hypothermia treatment following resuscitation from cardiac arrest.DesignProspective observational study.SettingOne intensive care unit at Uppsala University Hospital.PatientsThirty-one unconscious patients resuscitated after cardiac arrest.InterventionsNone.Measurements and main resultsUnconscious patients after cardiac arrest with restoration of spontaneous circulation (ROSC) were treated with mild hypothermia to 32-34 °C for 26 h. Time from cardiac arrest to target temperature was measured. Blood samples were collected at intervals of 1-108 h after ROSC. Neurological outcome was assessed with Glasgow-Pittsburgh cerebral performance category (CPC) scale at discharge from intensive care and again 6 months later, when 15/31 patients were alive, of whom 14 had a good outcome (CPC 1-2). Among the predictive biomarkers, S-100B at 24 h after ROSC was the best, predicting poor outcome (CPC 3-5) with a sensitivity of 87% and a specificity of 100%. NSE at 96 h after ROSC predicted poor outcome, with sensitivity of 57% and specificity of 93%. BDNF and GFAP levels did not predict outcome. The time from cardiac arrest to target temperature was shorter for those with poor outcome.ConclusionsThe blood concentration of S-100B at 24 h after ROSC is highly predictive of outcome in patients treated with mild hypothermia after cardiac arrest. |
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Keywords: | Hypothermia Post-resuscitation period Outcome |
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