Reflex occipital lobe epilepsy

Yalçın, Ayşe Destînâ; Kaymaz, Asuman; Forta, Hulki

doi:10.1053/seiz.2000.0424

Cited by 28 publications

(16 citation statements)

References 12 publications

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“…Such responses are typically found in absence of juvenile myoclonic epilepsy, or epilepsy with grand mal seizures on awakening [6]. Although PPRs are most frequently generalized, photic stimulation has the potential to trigger focal occipital epileptiform discharges [17,18]. Besides its importance in increasing the diagnostic yield of routine EEG and better defining the type of epilepsy, IPS has other potential benefits that were not specifically addressed in this study [3].…”

Section: Discussionmentioning

confidence: 99%

Reexamining the Added Value of Intermittent Photic Stimulation and Hyperventilation in Routine EEG Practice

Ahdab

Riachi

2013

Eur Neurol

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Objective: Investigate the added value of hyperventilation (HV) and intermittent photic stimulation (IPS) to the routine electroencephalogram (EEG). Method: This is a retrospective review of 1,172 successive EEGs. The records with evidence of epileptogenic activity were identified and further analyzed to identify if the activation techniques could trigger the expression of epileptic activity not seen otherwise in the nonactivated tracing. Results: Activation procedures provided additional information in 9.5% of the abnormal EEG files. They helped establish the diagnosis of an epileptic disorder or further characterize the epileptic syndrome. This occurred exclusively in the younger age group (age <36 years), and predominantly in women. Conclusion: IPS and HV are easy to perform and remain important adjuncts to routine EEG. They may trigger the expression of epileptogenic activity in an otherwise uneventful EEG. Whereas their diagnostic value was obvious in the younger age group, we found no evidence to support their usefulness in the middle-age and elderly groups.

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Section: Discussionmentioning

confidence: 99%

Reexamining the Added Value of Intermittent Photic Stimulation and Hyperventilation in Routine EEG Practice

Ahdab

Riachi

2013

Eur Neurol

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“…74 A few families with affected members in multiple generations have been reported. 79,82,83 There is considerable overlap with the IGEs and with SeLECTS. 80,84 No known gene exists.…”

Section: Geneticsmentioning

confidence: 99%

International League Against Epilepsy classification and definition of epilepsy syndromes with onset in childhood: Position paper by the ILAE Task Force on Nosology and Definitions

et al. 2022

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The goal of this paper is to describe epilepsy syndromes that begin in childhood (age 2-12 years). Additional syndromes that have a variable age at onset, including in childhood, are described in the paper on epilepsy syndromes with onset at a variable age. 1 The childhood onset syndromes can be broadly divided into three main groups: (1) self-limited focal epilepsies (SeLFEs); (2) generalized epilepsy syndromes, which are thought to have a genetic basis; and (3) developmental and/or epileptic encephalopathies (DEEs), which often have both focal and generalized seizures, including Lennox-Gastaut syndrome (LGS), developmental epileptic encephalopathy with spike-and-wave activation in sleep (DEE-SWAS), and epileptic encephalopathy with spike-and-wave activation in sleep (EE-SWAS), or may have generalized seizures alone, such as epilepsy with myoclonic atonic seizures (EMAtS), or focal/multifocal seizures alone, such as hemiconvulsion-hemiplegia-epilepsy syndrome (HHE) and febrile infection-related epilepsy syndrome (FIRES).Childhood is also the typical age of onset of childhood absence epilepsy (CAE); this syndrome is covered in a separate paper on the idiopathic generalized epilepsy (IGE) syndromes. 2

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“…Photosensitivity is defined as an abnormal clinical and/or electroencephalographic (EEG) response evoked either by intermittent photic stimulation (IPS) or by visual stimuli in daily life 1 , 2 . Examples of environmental photic stimulation include electronic flicker (usually television), strobe light, and flickering sunlight 3 , which is easy to neglect unless specially inquired.…”

Section: Introductionmentioning

confidence: 99%

Genetic (idiopathic) epilepsy with photosensitive seizures includes features of both focal and generalized seizures

Gong

Yang

Liu

et al. 2018

Sci Rep

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Clinically, some patients having genetic (idiopathic) epilepsy with photosensitive seizures were difficult to be diagnosed. We aimed to discuss whether the genetic (idiopathic) epilepsy with photosensitive seizures is a focal entity, a generalized entity or a continuum. Twenty-two patients with idiopathic epilepsies and photoconvulsive response (PCR) were retrospectively recruited. In the medical records, the seizure types included “generalized tonic-clonic seizures (GTCS)” in 15, “partial secondarily GTCS (PGTCS)” in 3, partial seizures (PS) in 3, myoclonic seizures in 2, eyelid myoclonus in one, and only febrile seizures in one. Seizure types of PCR included GTCS (1/22), PGTCS (6/22), PS (9/22), electrical seizures (ES) (3/22) and GTCS/PGTCS (3/22). Combined the medical history with PCR results, they were diagnosed as: idiopathic (photosensitive) occipital lobe epilepsy (I(P)OE) in 12, genetic (idiopathic) generalized epilepsy (GGE) in one, GGE/I(P)OE in 5, pure photosensitive seizure in one, and epilepsy with undetermined generalized or focal seizure in 3. So, the dichotomy between generalized and focal seizures might have been out of date regarding to pathophysiological advances in epileptology. To some extent, it would be better to recognize the idiopathic epilepsy with photosensitive seizures as a continuum between focal and generalized seizures.

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Reflex occipital lobe epilepsy

Cited by 28 publications

References 12 publications

Reexamining the Added Value of Intermittent Photic Stimulation and Hyperventilation in Routine EEG Practice

Reexamining the Added Value of Intermittent Photic Stimulation and Hyperventilation in Routine EEG Practice

International League Against Epilepsy classification and definition of epilepsy syndromes with onset in childhood: Position paper by the ILAE Task Force on Nosology and Definitions

Genetic (idiopathic) epilepsy with photosensitive seizures includes features of both focal and generalized seizures

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