Sonographic Optic Nerve Sheath Diameter: A Simple and Rapid Tool to Assess the Neurologic Prognosis After Cardiac Arrest. Issue 6 (19th April 2015)

• Record Type: Journal Article
• Authors: Ueda, Takeshi; Ishida, Eri; Kojima, Yusuke; Yoshikawa, Satoshi; Yonemoto, Hitoshi
• Is Part Of: Journal of neuroimaging. Volume 25:Issue 6(2015)
• Page Start: 927
• Page End: 930
• Publication Date: 2015-04-19
• Subjects: Diagnostic imaging -- Periodicals; Nervous system -- Diseases -- Diagnosis -- Periodicals; Imagerie pour le diagnostic -- Périodiques; Système nerveux -- Maladies -- Diagnostic -- Périodiques; Imagerie médicale; Neuroimagerie; Neurologie; Système nerveux; Périodique électronique (Descripteur de forme); Ressource Internet (Descripteur de forme); 616.804754
• DOI: 10.1111/jon.12246
• Languages: English
• ISSNs: 1051-2284

Abstract

<abstract abstract-type="main"> <title>ABSTRACT</title> <sec id="jon12246-sec-0010" sec-type="section"> <title>BACKGROUND AND PURPOSE</title> <p>The early prediction of hypoxic encephalopathy after cardiac arrest is challenging. Measurement of the optic nerve sheath diameter (ONSD) by using sonography is a straightforward, noninvasive technique to detect an increased intracranial pressure, which can even be conducted at the bedside. However, it remains unknown whether or not sonographic ONSD measurement is valuable as a prognostic indicator of hypoxic encephalopathy.</p> </sec> <sec id="jon12246-sec-0020" sec-type="section"> <title>METHODS</title> <p>Seventeen patients after cardiac arrest were retrospectively enrolled in this study. ONSD measurements 3 mm behind the papilla were recorded. A Glasgow Outcome Scale score of 4 or above was considered to indicate a favorable prognosis.</p> </sec> <sec id="jon12246-sec-0030" sec-type="section"> <title>RESULTS</title> <p>The mean ONSD associated with a favorable prognosis was 5.0 mm (4.4‐6.1 mm). The ONSD associated with a poor prognosis was 6.1 mm (5.4‐7.2 mm). ONSD less than or equal to 5.4 mm was an indicator of a favorable prognosis, with a sensitivity of 83%, specificity of 73%, positive likelihood ratio of 3.1, and negative likelihood ratio of .23.</p> </sec> <sec id="jon12246-sec-0040" sec-type="section"> <title>CONCLUSIONS</title> <p>Sonographic ONSD measurement is a simple, rapid technique to assess the neurological prognosis after cardiac arrest.</p> </sec> </abstract>