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Updated: Jul 14, 2026

Behavioral Characterization of Pentylenetetrazole-induced Seizures: Moving Beyond the Racine Scale
Published on: July 8, 2025
Spinal algetic-tonic seizures manifesting as paroxysmal "positive" Brown-Séquard syndrome
Anne Kirchner1, Annkathrin Poepel, Matthias Hantsch
1Dept. of Epileptology, University of Boon, Germany.
Abstract:
We report on a patient suffering from symptomatic spinal attacks in the form of a paroxysmal "positive" (algetic-tonic) Brown-Séquard syndrome. A cervical cord lesion, presumably inflammatory-demyelinating in origin, was identified as the morphological correlate of these attacks. Their pathogenesis is discussed in the light of similar case reports from the literature. For the first time, this rare type of seizure is published with a video documentation. It may deserve consideration in the differential diagnosis of otherwise unexplained paroxysmal events that present in an "epileptic" manner.
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