Document Detail

The localizing yield of sphenoidal and anterior temporal electrodes in ictal recordings: a comparison study.
MedLine Citation:
PMID:  12366735     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To compare the localizing yield of sphenoidal electrodes placed under fluoroscopic guidance (SEs) and anterior temporal electrodes (ATEs) in ictal recordings from a group of patients with seizure disorders of anterior temporal origin. METHODS: We compared ictal recordings of 156 seizures obtained with SEs and ATEs from 40 consecutive patients with seizures of anterior temporal origin. Four electroencephalographers reviewed ictal recordings independently and blind to the patients' identity, presurgical data, and inclusion of ATEs or SEs. Outcome variables included (a) number of correctly localized seizures with SE and ATE recordings by at least three raters; (b) number of ictal foci in which all seizures were localized only with SEs; and (c) number of seizures in which SEs identified the ictal onset > or =5 s earlier than ATEs. RESULTS: Interrater agreement among the four raters was significantly greater with SE than with ATE recordings (p < 0.0001). The number of seizures correctly localized was significantly greater with SEs (n = 144) than with ATEs (n = 99; p < 0.0001). All the seizures [n = 36 (23%)] originating from 14 ictal foci (29%) in 11 patients (27.5%) were localized only with SEs. Finally, the ictal onset was detected at SEs > or =5 s earlier than at ATEs in 67 (43%) seizures originating from 33 (69%) foci in 30 (75%) patients. CONCLUSIONS: SEs improve interrater agreement in the localization of seizures of anterior temporal origin, and in about one fourth of patients, SEs add ictal data not identified by ATEs.
Andres M Kanner; Jaime Parra; Antonio Gil-Nagel; Arnoldo Soto; Sue Leurgans; Jorge Iriarte; Leyla deToledo-Morrell; Susan Palac
Related Documents :
17637215 - Multicentre observational study evaluating immediate and progressive switching from car...
17204435 - Levetiracetam monotherapy for children and adolescents with benign rolandic seizures.
9737445 - Evolutional changes and outcome of west syndrome: correlation with magnetic resonance i...
10627405 - Treatment of photosensitive epilepsy using coloured glasses.
2983625 - Serum alpha interferon and lymphocyte inclusions in systemic lupus erythematosus.
17584695 - Repolarization characteristics and incidence of torsades de pointes in patients with ac...
Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Epilepsia     Volume:  43     ISSN:  0013-9580     ISO Abbreviation:  Epilepsia     Publication Date:  2002 Oct 
Date Detail:
Created Date:  2002-10-07     Completed Date:  2002-11-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  2983306R     Medline TA:  Epilepsia     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1189-96     Citation Subset:  IM    
Department of Neurological Sciences, Rush Medical College, and Rush Epilepsy Center, Rush-Presbyterian St. Luke's Medical Center, Chicago, Illinois 60612, USA.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Brain Mapping / methods
Electrodes, Implanted*
Electroencephalography / methods*,  statistics & numerical data
Epilepsy, Temporal Lobe / diagnosis*,  physiopathology,  surgery
Fluoroscopy / methods
Heart Septum
Middle Aged
Sphenoid Bone*
Temporal Lobe / physiopathology*,  surgery
Comment In:
Epilepsia. 2003 May;44(5):732-3; author reply 733   [PMID:  12752477 ]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Effect of vagal nerve stimulation on interictal epileptiform discharges: a scalp EEG study.
Next Document:  Metabolic and electrophysiological alterations in subtypes of temporal lobe epilepsy: a combined pro...