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Using Optic Nerve Sheath Diameter for Intracranial Pressure (ICP) Monitoring in Traumatic Brain Injury: A Scoping Review
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Using Optic Nerve Sheath Diameter for Intracranial Pressure (ICP) Monitoring in Traumatic Brain Injury: A Scoping Review
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Journal Article
Using Optic Nerve Sheath Diameter for Intracranial Pressure (ICP) Monitoring in Traumatic Brain Injury: A Scoping Review
2024
Overview
Introduction
Neuromonitoring represents a cornerstone in the comprehensive management of patients with traumatic brain injury (TBI), allowing for early detection of complications such as increased intracranial pressure (ICP) [1]. This has led to a search for noninvasive modalities that are reliable and deployable at bedside. Among these, ultrasonographic optic nerve sheath diameter (ONSD) measurement is a strong contender, estimating ICP by quantifying the distension of the optic nerve at higher ICP values. Thus, this scoping review seeks to describe the existing evidence for the use of ONSD in estimating ICP in adult TBI patients as compared to gold-standard invasive methods.
Materials and Methods
This review was conducted in accordance with the Joanna Briggs Institute methodology for scoping reviews, with a main search of PubMed and EMBASE. The search was limited to studies of adult patients with TBI published in any language between 2012 and 2022. Sixteen studies were included for analysis, with all studies conducted in high-income countries.
Results
All of the studies reviewed measured ONSD using the same probe frequency. In most studies, the marker position for ONSD measurement was initially 3 mm behind the globe, retina, or papilla. A few studies utilized additional parameters such as the ONSD/ETD (eyeball transverse diameter) ratio or ODE (optic disc elevation), which also exhibit high sensitivity and reliability.
Conclusion
Overall, ONSD exhibits great test accuracy and has a strong, almost linear correlation with invasive methods. Thus, ONSD should be considered one of the most effective noninvasive techniques for ICP estimation in TBI patients.
Publisher
Springer US,Springer Nature B.V,Springer
Subject
/ Brain Injuries, Traumatic - diagnostic imaging
/ Brain Injuries, Traumatic - physiopathology
/ Humans
/ Intracranial Hypertension - diagnosis
/ Intracranial Hypertension - diagnostic imaging
/ Intracranial Hypertension - etiology
/ Intracranial Hypertension - physiopathology
/ Intracranial Pressure - physiology
/ Medicine
/ Methods
/ Monitoring, Physiologic - instrumentation
/ Monitoring, Physiologic - methods
/ Neurophysiological Monitoring - instrumentation
/ Neurophysiological Monitoring - methods
/ Optic Nerve - diagnostic imaging
/ Patients
/ Review
