Related Experiment Video
Updated: Jun 17, 2026
04:06
Minimally Invasive Surgical Decompression of Occipital Nerves
Published on: September 13, 2024
The role of visually evoked potentials in the management of hemispheric arachnoid cyst compressing the posterior
Vignesh Raja1, Anupma Kumar, Jon Durnian
1Department of Ophthalmology, Alder Hey Children's Hospital, Liverpool, United Kingdom. drvigneshraja@gmail.com
Insights
This study details an infant
Area of Science:
- Pediatric Neurology
- Neuro-ophthalmology
- Developmental Neuroscience
Background:
- Arachnoid cysts are congenital cerebrospinal fluid collections.
- Occipital arachnoid cysts can impact visual development in infants.
- Monitoring visual pathway function is crucial for early intervention.
Observation:
- An infant presented with an occipital arachnoid cyst.
- Visually evoked potentials (VEPs) revealed significant asymmetry.
- This asymmetry indicated impaired visual pathway function.
Findings:
- Neurosurgical intervention was performed based on VEP changes.
- Post-intervention, the infant showed improved visual behavior.
- Electrical responses to both pattern and flash stimuli normalized.
Implications:
- VEPs are valuable for managing pediatric occipital arachnoid cysts.
- Early neurosurgical intervention can improve visual outcomes.
- This case highlights the importance of electrophysiological monitoring in pediatric neurosurgery.
Abstract:
We report a case of an occipital arachnoid cyst in an infant, managed on the basis of changes in visually evoked potentials (VEPs). A significant asymmetry of VEP responses prompted neurosurgical intervention, which improved visual behavior and electrical response to both pattern and flash stimuli.
Related Concept Videos
01:22Cerebral Edema ll: Pathophysiology
Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this barrier loses...
01:29Increased Intracranial Pressure ll: Pathophysiology
Increased intracranial pressure (ICP) refers to a potentially life-threatening rise in pressure inside the skull. This usually happens when there is a major change in the volume of brain tissue, blood, or cerebrospinal fluid (CSF) — the three components inside the skull. According to the Monro-Kellie doctrine, if the volume of one component increases, the volumes of the other components must decrease to maintain normal pressure. If this does not happen, ICP rises.The process often begins with...