alexa Serum neuron-specific enolase predicts outcome in post-anoxic coma: a prospective cohort study.
Cardiology

Cardiology

Journal of Clinical & Experimental Cardiology

Author(s): Meynaar IA, Oudemansvan Straaten HM, van der Wetering J, Verlooy P, Slaats EH,

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Abstract OBJECTIVE: The aim of this study was to investigate whether serial serum neuron-specific enolase (NSE) can be used to predict neurological prognosis in patients remaining comatose after cardiopulmonary resuscitation (CPR). DESIGN. Observational cohort study. Clinicians were blinded to NSE results. SETTING: Eighteen-bed general ICU. PATIENTS: Comatose patients admitted to the ICU after CPR. INTERVENTIONS: Serum NSE was measured at admission and daily for 5 days. MEASUREMENTS AND RESULTS: Patients received full intensive treatment until recovery or until absence of cortical response to somatosensory evoked potentials more than 48 h after CPR proved irreversible coma. Of the 110 patients included (mean GCS at ICU admission 3, range 3--9), 34 regained consciousness, five of whom died in hospital. Seventy-six patients did not regain consciousness, 72 of whom died in hospital. Serum NSE at 24 h and at 48 h after CPR was significantly higher in patients who did not regain consciousness than in patients who regained consciousness (at 24 h: median NSE 29.9 microg/l, range 1.8-250 vs 9.9 microg/l, range 4.5-21.5, P<0.001; at 48 h: median 37.8 microg/l, range 4.4-411 vs 9.5 microg/l, range 6.2-22.4, P= 0.001). No patient with a serum NSE level >25.0 microg/l at any time regained consciousness. Addition of NSE to GCS and somatosensory evoked potentials increased predictability of poor neurological outcome from 64\% to 76\%. CONCLUSIONS: High serum NSE levels in comatose patients at 24 h and 48 h after CPR predict a poor neurological outcome. Addition of NSE to GCS and somatosensory evoked potentials increases predictability of neurological outcome. This article was published in Intensive Care Med and referenced in Journal of Clinical & Experimental Cardiology

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