Occipital Lobe Seizures and Epilepsies

Adcock, Jane; Panayiotopoulos, C. P.

doi:10.1097/wnp.0b013e31826c98fe

Cited by 78 publications

(68 citation statements)

References 51 publications

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“…Panayiotopoulos found a more common type of childhood epilepsy with occipital paroxysms with the same occipital lobe epilepsy findings in younger children, a type in which seizures are infrequent, usually nocturnal, and marked by ictal vomiting as well as tonic eye deviation. Visual symptoms rarely occurred in these children 3,5,13 .…”

Section: Discussionmentioning

confidence: 99%

Türk Çocuklarında İdiopatik Çocukluk Çağı Oksipital Lob Epilepsisi

İncecik¹,

Hergüner²,

Mert³

et al. 2015

Cukurova Medical Journal

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Purpose: Two forms of idiopathic occipital lobe epilepsy can be distinguished: an early onset or Panayiotopoulos type (PS), and a late onset or Gastaut type (GS). The aim of this study was to identify clinical manifestations and outcome in Turkish children with idiopathic occipital lobe epilepsy. Material and Methods: Thirty nine children (27 boys, 12 girls) were divided into the PS and GS type, according to the classification for epileptic seizures of the International League Against Epilepsy. Results: Among the 39 patients, 27 (69.3%) were boys and 12 (30.7%) were girls and the mean age at the seizure onset was 77.38 ± 27.33 months (36-145 months). The PS type patients consisted of 27 children (19 boys, 8 girls). The average age of seizure onset in PS type patients was 60.76 ± 14.21 months (range, 36-94 months). The GS type patients consisted of 12 children (8 boys, 4 girls), and seizure onset was 107.7 ± 18.8 months (range, 72-145 months).Ictal vomiting was more common in the PS type patients, and visual symptoms were more common in the GS type patients. We detected that after treatment, 27 patients (100%) in PS type and 10 patients (83.3%) in GS type became seizures-free. Two patients continued having seizures in GS type. Conclusions: The average age of seizure onset was much younger in the PS than in the GS. Also, in idiopathic occipital lobe epilepsy, the PS type has better seizure-free and prognosis than the GS.

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Section: Discussionmentioning

confidence: 99%

Türk Çocuklarında İdiopatik Çocukluk Çağı Oksipital Lob Epilepsisi

İncecik¹,

Hergüner²,

Mert³

et al. 2015

Cukurova Medical Journal

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“…Due to fast propagation, the most frequent IED in OLE are spikes and sharp waves in temporal or temporo-occipital regions with shifting maximums in some patients [104][105][106][107]. Widespread and bilateral IED including secondary bilateral synchrony are common and isolated epileptiform activity restricted to the occipital lobe is infrequent [108,109].…”

Section: Occipital Lobe Epilepsy/parietal Lobe Epilepsymentioning

confidence: 97%

“…Among these patients, however, patients with OLE have the highest incidence ranging from 6 to 13% [104,106,112].…”

Section: Non-invasive Eeg Evaluation In Epilepsy Diagnosismentioning

confidence: 98%

Non-invasive EEG evaluation in epilepsy diagnosis

Rosenow

Klein

Hamer

2015

Expert Review of Neurotherapeutics

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The EEG is an invaluable tool in the diagnosis of epilepsy which guides clinical management. It helps to determine if attacks are of epileptic origin, allows the estimation of the recurrence risk after a first seizure, aids in the diagnosis of the epilepsy syndrome and represents the gold standard in the presurgical evaluation of epilepsy. The EEG can also detect subclinical seizures as a cause of coma. In this review we discuss the sensitivity and specificity of the EEG, present the EEG findings and their significance in different epilepsy syndromes including focal and generalized epilepsies and describe the application of activation procedures.

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“…Posterior lobe epilepsies are mainly characterized by visual symptoms (e.g. flashing lights), abnormal eye movements with or without subsequent altered consciousness, automatisms or motor manifestations depending on propagation of epileptic activity (Adcock and Panayiotopoulos, 2012;Panayiotopoulos, 1999;Tandon et al, 2009;Williamson et al, 1992). Postictally, patients can complain of headaches and transient visual field deficits (Panayiotopoulos, 1999).…”

Section: Introductionmentioning

confidence: 99%

Hemodynamic changes during posterior epilepsies: An EEG-fNIRS study

et al. 2014

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Posterior epilepsies are relatively rare, mainly suspected clinically by the presence of visual auras.Functional near-infrared spectroscopy (fNIRS) is an emerging non-invasive imaging technique that has the potential to monitor hemodynamic changes during epileptic activity. Combined with electroencephalography (EEG), 9 patients with posterior epilepsies were recorded using EEG-fNIRS with large sampling (19 EEG electrodes and over 100 fNIRS channels). Spikes and seizures were carefully marked on EEG traces, and convolved with a standard hemodynamic response function for general linear model (GLM) analysis. GLM results for seizures (in 3 patients) and spikes (7 patients) were broadly sensitive to the epileptic focus in 7/9 patients, and specific in 5/9 patients with fNIRS deoxyhemoglobin responses lateralized to the correct lobe, and to plausible locations within the occipital or parietal lobes. This work provides evidence that EEG-fNIRS is a sensitive technique for monitoring posterior epileptic activity.

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Occipital Lobe Seizures and Epilepsies

Cited by 78 publications

References 51 publications

Türk Çocuklarında İdiopatik Çocukluk Çağı Oksipital Lob Epilepsisi

Türk Çocuklarında İdiopatik Çocukluk Çağı Oksipital Lob Epilepsisi

Non-invasive EEG evaluation in epilepsy diagnosis

Hemodynamic changes during posterior epilepsies: An EEG-fNIRS study

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