• Pediatric neurology · Jan 2016

    Bedside Optic Nerve Sheath Diameter Assessment in the Identification of Increased Intracranial Pressure in Suspected Idiopathic Intracranial Hypertension.

    • Jose E Irazuzta, Martha E Brown, and Javed Akhtar.
    • Department of Pediatrics, University of Florida, Division of Pediatric Critical Care, Jacksonville, Florida. Electronic address: Jose.Irazuzta@jax.ufl.edu.
    • Pediatr. Neurol. 2016 Jan 1; 54: 35-8.

    ObjectiveWe determined whether the bedside assessment of the optic nerve sheath diameter could identify elevated intracranial pressure in individuals with suspected idiopathic intracranial hypertension.MethodsThis was a single-center, prospective, rater-blinded study performed in a freestanding pediatric teaching hospital. Patients aged 12 to 18 years scheduled for an elective lumbar puncture with the suspicion of idiopathic intracranial hypertension were eligible to participate. Optic nerve sheath diameter was measured via ultrasonography before performing a sedated lumbar puncture for measuring cerebrospinal fluid opening pressure. Abnormal measurements were predefined as optic nerve sheath diameter ≥4.5 mm and a cerebrospinal fluid opening pressure greater than 20 cmH2O.ResultsThirteen patients participated in the study, 10 of whom had elevated intracranial pressure. Optic nerve sheath diameter was able to predict or rule out elevated intracranial pressure in all patients.ConclusionsNoninvasive assessment of the optic nerve sheath diameter could help to identify patients with elevated intracranial pressure when idiopathic intracranial hypertension is suspected.Copyright © 2016 Elsevier Inc. All rights reserved.

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