Parietal lobe epilepsies
Age at onset
Neurological and mental state
Somatosensory seizures (2/3): Paresthetic, dysesthetic, and painful sensations (numbness, thermal, pricking, tight, electric). Pain is sometimes exacerbating. Face, hand, and arm (per the homunculus) are mainly involved. Symptoms may be static or march in Jacksonian manner.
Somatic illusions (second most common): Distorted posture, limb position, or of movement, an extremity or a body part being alien or absent. They mainly emanate from the non-language-dominant . Inability to move one extremity or a feeling of weakness in the hand is contralateral to the zone.
Vertigo and other vertiginous sensations (~10%).
Visual illusions and complex formed visual hallucinations (~12%); images look larger or smaller, close or far away, or moving although static; metamorphopsia, palinopsia.
Genital sensations or orgasm may occur.
Dominant temporal-parietal regions: Linguistic disturbances of alexia with agraphia and miscalculations.
Non-dominant parietal-occipital-temporal regions: Spatial disorientation.
Simple focal seizures often spread to extra-parietal regions, producing unilateral focal motor clonic manifestations (57% of patients), head and eye deviation (41%), tonic posturing of usually one extremity (28%), and automatisms (21%).
Frequent, sometimes many per day, and often in multiple clusters.
*Expert opinion, please check FDA-approved indications and prescribing information
This page was adapted from:
The educational kit on epilepsies
Originally published by MEDICINAE
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