Réponses évoquées multisensorielles chez le singe porteur d'un foyer épileptogène rolandique

Amand, Gérard; Demoulin, Axelle; Lamarche, M

doi:10.1016/s0370-4475(73)80081-4

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…Startle-induced activation of a diffusely abnormal cortex may produce a generalized spike-and-wave pattern, just as it may activate a focal epileptic discharge (Andermann and Andermann, 1988). Experimental support for this can be drawn from the report by Amand et al (1973), who produced a rolandic epileptic focus in Macaco Nemestrino and subsequently observed the onset of contralateral motor partial seizures, continuous myoclonus, and a marked, strictly unilateral, localized startle reaction on sudden acoustic, tactile, or visual stimulation. The following sequence has been hypothetized by Bancaud et al (1975); surprise stimulation-startle reaction-afferent proprioceptive volley-epileptic seizure.…”

Section: Discussionmentioning

confidence: 92%

“…The following sequence has been hypothetized by Bancaud et al (1975); surprise stimulation-startle reaction-afferent proprioceptive volley-epileptic seizure. Experimental support for this can be drawn from the report by Amand et al (1973), who produced a rolandic epileptic focus in Macaco Nemestrino and subsequently observed the onset of contralateral motor partial seizures, continuous myoclonus, and a marked, strictly unilateral, localized startle reaction on sudden acoustic, tactile, or visual stimulation. They also demonstrated high amplitude somatosensory and acoustic evoked potentials over the lesional area.…”

Section: Discussionmentioning

confidence: 92%

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Reflex Seizures are Frequent in Patients with Down Syndrome and Epilepsy

Guerrini

Genton²,

Bureau³

et al. 1990

Epilepsia

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In a retrospective study of 30 Down syndrome (DS) patients with epilepsy, we found 6 cases (20%) with reflex seizures. One patient had benign myoclonic epilepsy of infancy with clinical photosensitivity. The other 5 cases had all startle-induced epileptic seizures and a form of symptomatic epilepsy. Three patients had a Lenox-Gastaut syndrome, one had generalized symptomatic epilepsy, and one had partial symptomatic epilepsy (PSE). Reflex epilepsy was also used as a classification category in the PSE case, as most or all seizures were stimulus-related in this patient. Seizures precipitated by stimuli were stereotyped in 4 patients, but 2 patients responded to stimuli with different types of seizures. The actual occurrence of reflex seizures in DS patients with epilepsy is probably underestimated. These cases seem to confirm previous reports showing deficiencies in cortical inhibition in the brain of DS patients.

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Section: Discussionmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 92%

Reflex Seizures are Frequent in Patients with Down Syndrome and Epilepsy

Guerrini

Genton²,

Bureau³

et al. 1990

Epilepsia

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Startle epilepsy complicating down syndrome during adulthood

Giménez-Roldán¹,

Martín²

1980

Annals of Neurology

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A woman with Down syndrome--a trisomy 21 karyotype--developed severe startle epilepsy and spontaneous seizures at the age of 20 years. Triggering factors, seizure patterns, and ictal electroencephalograms were the same as in startle epilepsy occurring in children with cerebral palsy but differed in that there was no clinical or radiological evidence of a focal brain lesion in the vicinity of the motor supplementary cortex. A therapeutic trial with clonazepam substantially reduced the frequency of reflex-induced and spontaneous seizures.

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Reflex Seizures

Ritaccio

1994

Neurologic Clinics

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Reflex seizures are best defined as a collective of different seizure types distinguished by their ability to be precipitated by a specific stimulus. This article reviews established reflex syndromes, including data gleaned from the application of intensive monitoring. Animal models are also discussed. The majority of stimulus-sensitive seizures occur in the context of well established, generalized, or localization-related epilepsy syndromes. The study of these phenomena offers insight into sensory and cognitive processing.

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Réponses évoquées multisensorielles chez le singe porteur d'un foyer épileptogène rolandique

Cited by 3 publications

References 9 publications

Reflex Seizures are Frequent in Patients with Down Syndrome and Epilepsy

Reflex Seizures are Frequent in Patients with Down Syndrome and Epilepsy

Startle epilepsy complicating down syndrome during adulthood

Reflex Seizures

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