| Parietal lobe epilepsy: diagnostic considerations and results of surgery. | |
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MedLine Citation:
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PMID: 1575458 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Eleven patients, evaluated between 1983 and 1988, with parietal lobe seizure origin as determined by circumscribed lesion detection in all and successful surgery in 10, were retrospectively evaluated in terms of clinical seizure characteristics and electroencephalographic (EEG) findings. Seven of 11 patients reported auras prior to seizures. In 4 patients, auras were lateralized somatosensory sensations, but in 1 they were ipsilateral to the side of seizure origin, and in 2 they had only occurred many years previously when seizures began. Other auras were either nonspecific or suggested seizure origin outside of the parietal lobe. Observed seizures were of two types: asymmetrical tonic seizures with or without clonic activity and complex partial seizures with loss of contact and automatisms. Four patients had only the first type of seizure and an equal number had only the second type. Three patients had both types of seizures during different episodes. Scalp EEGs correctly localized the side and region of seizure onset in only 1 patient. Three additional patients with congruent parietal localization on scalp EEG had additional misleading EEG findings. All patients had lesions detected with neuroimaging, but in 5 this detection occurred after they had been initially evaluated. These 5 patients had intracranial EEG studies designed to localize the region of seizure origin, and correct seizure onset localization was achieved in 2. Of the other 3 patients, false localization occurred in 1, and 2 could not be localized. Four patients with known lesions and 2 of the patients in whom lesions were detected after initial intracranial evaluations were studied with subdural grid electrodes placed over the lesions.(ABSTRACT TRUNCATED AT 250 WORDS) |
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Authors:
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P D Williamson; P A Boon; V M Thadani; T M Darcey; D D Spencer; S S Spencer; R A Novelly; R H Mattson |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Annals of neurology Volume: 31 ISSN: 0364-5134 ISO Abbreviation: Ann. Neurol. Publication Date: 1992 Feb |
Date Detail:
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Created Date: 1992-06-01 Completed Date: 1992-06-01 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 7707449 Medline TA: Ann Neurol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 193-201 Citation Subset: IM |
Affiliation:
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Section of Neurology, Dartmouth-Hitchcock Medical Center, Hanover, NH 03756. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Astrocytoma / complications, surgery Brain Neoplasms / complications, surgery Diagnosis, Differential Electroencephalography Epilepsy / diagnosis, etiology, physiopathology*, surgery Epilepsy, Temporal Lobe / diagnosis Female Hamartoma / complications, surgery Humans Male Parietal Lobe / physiopathology*, surgery |
| Grant Support | |
ID/Acronym/Agency:
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NS06208/NS/NINDS NIH HHS |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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