• Journal of critical care · Feb 2024

    Observational Study

    Optic Nerve Sheath Diameter for Assessing Prognosis after Out-of-Hospital Cardiac Arrest.

    • Christopher Hohmann, Alexandros E Doulis, Carsten H Gietzen, Christoph Adler, Hendrik Wienemann, Philipp von Stein, Robert Hoerster, Konrad R Koch, and Guido Michels.
    • Department III of Internal Medicine, Heart Center, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany. Electronic address: christopher.hohmann@uk-koeln.de.
    • J Crit Care. 2024 Feb 1; 79: 154464154464.

    PurposeEvaluate optic nerve sheath and pial diameters (ONSD, ONPD) via sonography and computed tomography (CT) after out-of-hospital cardiac arrest (CA) and to compare their prognostic significance with other imaging and laboratory biomarkers.Materials And MethodsA prospective observational study enrolling patients after successful resuscitation between December 2017 and August 2021. ONSD and ONPD were measured with sonography. Additionally, ONSD, and also grey-to-white ratio at basal ganglia (GWRBG) and cerebrum (GWRCBR), were assessed using CT. Lactate and neuron specific enolase (NSE) blood levels were measured.ResultsSonographically measured ONSD and ONPD yielded no significant difference between survival and non-survival (p values ≥0.4). Meanwhile, CT assessed ONSD, GWRBG, GWRCBR, and NSE levels significantly differed regarding both, survival (p values ≤0.005) and neurological outcome groups (p values ≤0.04). For survival prognosis, GWRBG, GWRCBR, and NSE levels appeared as excellent predictors; in predicting a good neurological outcome, NSE had the highest accuracy.ConclusionsCT diagnostics, in particular GWRBG and GWRCBR, as well as NSE as laboratory biomarker, appear as excellent outcome predictors. Meanwhile, our data lead us to recommend caution in utilizing sonography assessed ONSD and ONPD for prognostic decision-making post-CA.Copyright © 2023 Elsevier Inc. All rights reserved.

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