video eeg
Recently Published Documents


TOTAL DOCUMENTS

747
(FIVE YEARS 146)

H-INDEX

45
(FIVE YEARS 4)

2022 ◽  
pp. 155005942110708
Author(s):  
Ayse Nur Ozdag Acarli ◽  
Ayse Deniz Elmali ◽  
Nermin Gorkem Sirin ◽  
Betul Baykan ◽  
Nerses Bebek

Introduction. Although ictal blinking is significantly more frequent in generalized epilepsy, it has been reported as a rare but useful lateralizing sign in focal seizures when it is not associated with facial clonic twitching. This study aimed to raise awareness of eye blinking as a semiological lateralizing sign. Method. Our database over an 11-year period reviewed retrospectively to assess patients who had ictal blinking associated with focal seizures. Results. Among 632 patients, 14 (2.2%), who had 3 to 13 (7 ± 3) seizures during video-EEG monitoring, were included. Twenty-five percent of all 92 seizures displayed ictal blinking and each patient had one to five seizures with ictal blinking. Ictal blinking was unilateral in 17%, asymmetrical in 22% and symmetrical in 61%. The blinking appeared with a mean latency of 6.3 s (range 0-39) after the clinical seizure-onset, localized most often to fronto-temporal, then in frontal or occipital regions. Blinking was ipsilateral to ictal scalp EEG lateralization side in 83% (5/6) of the patients with unilateral/asymmetrical blinking. The exact lateralization and localization of ictal activity could not have been determined via EEG in most of the patients with symmetrical blinking, remarkably. Conclusions. Unilateral/asymmetrical blinking is one of the early components of the seizures and appears as a useful lateralizing sign, often associated with fronto-temporal seizure-onset. Symmetrical blinking, on the other hand, did not seem to be valuable in lateralization and localization of focal seizures. Future studies using invasive recordings and periocular electrodes are needed to evaluate the value of blinking in lateralization and localization.


2021 ◽  
Vol 11 (2) ◽  
pp. 127-135
Author(s):  
Young Jun Ko ◽  
Il Han Yoo ◽  
Jiwon Lee ◽  
Jeehun Lee ◽  
Mi-Sun Yum ◽  
...  

Background and Purpose: This study was aimed to describe focal epilepsy features of SCN1A mutation-positive Dravet syndrome patients.Methods: A total of 82 SCN1A mutation-positive patients were reviewed retrospectively (39 boys and 43 girls). Seizure type and electroencephalography (EEG) findings were investigated according to the stage, disease onset, and steady state (after age 2 years). Long-term video EEG data were used to classify the seizure type.Results: Focal seizures at onset and the steady state were found in 54.9% (45/82) and 90% (63/70) of patients, respectively. Afebrile focal seizures were an initial seizure in about one fourth of the patients (22/82, 26.8%). Of 48 seizures captured during long-term video EEG monitoring of 30 patients, 19 seizures were classified as focal onset (39.6%). Of the 19 focal seizures, 12 were either focal motor or focal non-motor seizures, and seven were focal onset bilateral tonic-clonic seizure. Focal epileptiform discharges were more frequent than generalized epileptiform discharges at seizure onset and during the clinical course on conventional EEG (3.7% vs. 0%, 52.9% vs. 32.9%, respectively).Conclusions: Our study provides a comprehensive description of focal epilepsy features of SCN1A mutation-positive Dravet syndrome patients. Recognizing these features as defining the clinical spectrum of Dravet syndrome may lead to earlier genetic diagnosis and tailored management.


2021 ◽  
pp. 480-481
Author(s):  
Mohini Bhelo ◽  
Harshita Jagwani ◽  
Swapan Mukherjee ◽  
Hriday De ◽  
Apurbo Ghosh

Ohtahara syndrome (OS) is a rare early infantile epileptic encephalopathy that is characterized by an abnormal electroencephalogram (EEG) and intractable seizures. The patient of this reported case is a 4-month-old male infant delivered by cesarean section with an uneventful antenatal and neonatal period. At 2 months of age, he developed seizures that were refractory to anticonvulsants. Prolonged video EEG showed a characteristic suppression-burst pattern. We report an infant OS associated with heterozygous mutation in the GABRB3 gene.


2021 ◽  
Vol 8 (5) ◽  
pp. 21-28
Author(s):  
E. V. Marchenko ◽  
A. M. Aleksandrov ◽  
G. V. Odintsova ◽  
A. A. Chukhlovin

Background. The basis of pre-surgical neurophysiological examinations of patients with pharmaco-resistant structural epilepsy is the method of monitoring bioelectrical activity of the brain, video-electroencephalographic monitoring and, if indicated, long-term invasive monitoring.Objective. The goal of the study is to estimate the diagnostic efficacy of the methods used for monitoring of the brain bioelectric activity on the basis of longterm results of surgical treatment of patients with temporal structural pharmaco-resistant epilepsy.Design and methods. The study included 61 patients with temporal lobe pharmaco-resistant epilepsy, who were divided into two groups: performance of video-EEG monitoring only (33 patients) and the additional use of invasive monitoring for the localization of the epileptogenic zone (28 patients). Each group was divided into subgroups depending on the outcome of surgical treatment: patients, in whom seizures ceased (Engel 1) and patients in whom seizures persisted to some degree (Engel 2-3-4). Invasive monitoring with ictal event recording was chosen as the reference method to calculate diagnostic efficacy.Results. Invasive monitoring was performed as part of the pre-surgical evaluation of patients with temporal lobe pharmaco-resistant epilepsy with a higher sensitivity (72.7 %) and accuracy (82.4 %) than video-EEG monitoring (sensitivity 50 %, accuracy 45.9 %).Conclusion. In simple monofocal variants of structural epilepsy, video-EEG monitoring has a sufficient level of diagnostic efficiency. The phenomenon of neurophysiological phenotypes convergence is responsible for the reduced diagnostic efficacy of noninvasive and invasive monitoring.


2021 ◽  
Vol 50 (1) ◽  
pp. 370-370
Author(s):  
Leanna Laor ◽  
Ritesh Korumilli ◽  
Anuj Jayakar ◽  
Hugh Ladd ◽  
Keith Meyer ◽  
...  

2021 ◽  
Vol 23 (6) ◽  
pp. 937-939
Author(s):  
Anna Stefánsdóttir ◽  
Anne Sabers ◽  
Annette Sidaros ◽  
György Rásonyi ◽  
Noémi Becser Andersen ◽  
...  

2021 ◽  
Vol 23 (6) ◽  
pp. 875-878
Author(s):  
Nikoli D. Brown ◽  
Mohammad Dastjerdi ◽  
Paul Herrmann ◽  
Joshua Loeb ◽  
Richard Tang-Wai ◽  
...  
Keyword(s):  

2021 ◽  
Vol 52 (04) ◽  
pp. 236-237

Ein einzelner unprovozierter epileptischer Anfall ist ein häufiges Szenario in der neurologischen Praxis. Zur Entscheidung über den Beginn einer antiepileptischen Medikation muss das Risikos eines Anfallsrezidivs abgeschätzt werden. Dafür spielt der Befund im EEG (Elektroenzephalogramm) eine entscheidende Rolle, da das Auftreten von epileptiformen Entladungen (EDs) im EEG das relative Risiko eines Anfallsrezidivs erhöht. Diese Arbeit sollte bewerten, welchen zusätzlichen Vorteil ein 24-Stunden-Elektroenzephalogramm (24h-EEG) nach dem ersten Anfall für die Erkennung epileptiformer Anomalien bringt.


2021 ◽  
pp. 1-10
Author(s):  
Roohi Katyal ◽  
Aruna Paul ◽  
Chao Xu ◽  
Claire Delpirou Nouh ◽  
Austin Clanton ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document