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Cephalic aura after frontal lobe resection.

Yosuke Kakisaka¹, Lara Jehi², Rafeed Alkawadri³

¹Epilepsy Center, Department of Neurology, The Cleveland Clinic, 9500 Euclid Avenue, Cleveland, OH 44195, USA; Department of Pediatrics, Tohoku University School of Medicine, Sendai, Japan.

Journal of Clinical Neuroscience : Official Journal of the Neurosurgical Society of Australasia

|March 12, 2014

Summary

This summary is machine-generated.

Cephalic aura, often seen in frontal lobe epilepsy, may arise from widespread brain activity. Surgical changes to the epileptic network might influence this aura

Keywords:

Cephalic aura Electroencephalography Fast activity Magnetoencephalography

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Area of Science:

Neuroscience
Epileptology
Clinical Neurology

Background:

Cephalic aura is a common sensory symptom in frontal lobe epilepsy.
The precise mechanisms underlying cephalic aura generation remain unclear.
Existing hypotheses suggest extensive cortical excitation is necessary for its occurrence.

Observation:

A patient developed cephalic aura post-right frontal lobe resection.
Magnetoencephalography (MEG) revealed interictal spikes and ictal changes in the right frontal region during aura.
Ictal changes showed significantly broader sensor involvement than interictal spikes.

Findings:

The observed seizure onset pattern suggests surgical modification of the epileptic network may be linked to cephalic aura development.
Epileptic activity during cephalic aura involved more extensive cortical areas compared to interictal activity.
This finding supports the hypothesis that widespread cortical involvement is crucial for cephalic aura generation in some patients.

Implications:

This case provides novel insights into the neurophysiological underpinnings of cephalic aura.
Understanding these mechanisms could inform surgical strategies for epilepsy.
Further research is warranted to explore the relationship between network plasticity and sensory aura in epilepsy.