Patient's in hospital mortality and morbidity was also noted by his residual losses in brain and motor functions and was later on matched with level of optic nerve sheath diameter (ONSD) at the time of presentation.
Table: Optic Nerve Sheath Diameter in Rt and Lt eyes.
Correlation of optic nerve sheath diameter
with direct measurement of intracranial pressure
Correlating optic nerve sheath diameter
with opening intracranial pressure in pediatric traumatic brain injury.
The International Mission for Prognosis and Analysis of Clinical Trials (IMPACT) and the Corticosteroid Randomisation After Significant Head injury (CRASH) prognostic scores are not meant for the emergency department (ED) estimation for TBI severity.4 Optic nerve is the most easily accessible part of the brain meninges and there are studies demonstrating the effectiveness of the optic nerve sheath diameter
(ONSD) on CT scans with the intracranial pressure (ICP) and the severity of the brain injury.5 Literature review has shown no such study having been conducted in an ED of Pakistan.
Kassai, "Ultrasonography of optic nerve sheath diameter
for detection of raised intracranial pressure: a systematic review and meta-analysis," Intensive Care Medicine, vol.
Cantello et al., "Intra- and interobserver reliability of transorbital sonographic assessment of the optic nerve sheath diameter
and optic nerve diameter in healthy adults," Journal of Ultrasound, vol.
Boyle, "Ultrasound measurement of optic nerve sheath diameter
in patients with a clinical suspicion of raised intracranial pressure," Emergency Medicine Journal, vol.
When optic nerve sheath diameter
is measured for intracranial pressure monitoring, the measurements are also very precise .
A single optic nerve sheath diameter
was measured 3.00 mm behind the globe (Figure 1 B) in each eye, and then the optic nerve sheath diameter
measurements from each eye were averaged to create a binocular optic nerve sheath diameter
Geeraerts, "Increase in optic nerve sheath diameter
induced by epidural blood patch: a preliminary report," British Journal of Anaesthesia, vol.
Individual patient data systematic review and meta-analysis of optic nerve sheath diameter
ultrasonography for detecting raised intracranial pressure: protocol of the ONSD research group.