Aphasic seizures in patients with temporopolar and anterior temporobasal lesions: a video-EEG study

Toledano, Rafael and Jiménez Huete, Adolfo and Garcia Morales, Irene and Campo, Pablo and Poch, Claudia and Strange, Bryan A. and Gil Nagel, Antonio (2013). Aphasic seizures in patients with temporopolar and anterior temporobasal lesions: a video-EEG study. "Epilepsy & Behavior", v. 29 (n. 1); pp. 172-177. ISSN 1525-5050. https://doi.org/10.1016/j.yebeh.2013.07.017.

Description

Title: Aphasic seizures in patients with temporopolar and anterior temporobasal lesions: a video-EEG study
Author/s:
  • Toledano, Rafael
  • Jiménez Huete, Adolfo
  • Garcia Morales, Irene
  • Campo, Pablo
  • Poch, Claudia
  • Strange, Bryan A.
  • Gil Nagel, Antonio
Item Type: Article
Título de Revista/Publicación: Epilepsy & Behavior
Date: October 2013
ISSN: 1525-5050
Volume: 29
Subjects:
Freetext Keywords: Temporal lobe epilepsy; Basal temporal language area; Aphasia; Video-EEG; Seizures
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Tecnología Fotónica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Studies of patients with temporal lobe epilepsy provide few descriptions of seizures that arise in the temporopolar and the anterior temporobasal brain region. Based on connectivity, it might be assumed that the semiology of these seizures is similar to that of medial temporal lobe epilepsy. However, accumulating evidence suggests that the anterior temporobasal cortex may play an important role in the language system, which could account for particular features of seizures arising here. We studied the electroclinical features of seizures in patients with circumscribed temporopolar and temporobasal lesions in order to identify specific features that might differentiate them from seizures that originate in other temporal areas. Among 172 patients with temporal lobe seizures registered in our epilepsy unit in the last 15 years, 15 (8.7%) patients had seizures caused by temporopolar or anterior temporobasal lesions (11 left-sided lesions). The main finding in our study is that patients with left-sided lesions had aphasia during their seizures as the most prominent feature. In addition, while all patients showed normal to high intellectual functioning in standard neuropsychological testing, semantic impairment was found in a subset of 9 patients with left-sided lesions. This case series demonstrates that aphasic seizures without impairment of consciousness can result from small, circumscribed left anterior temporobasal and temporopolar lesions. Thus, the presence of speech manifestation during seizures should prompt detailed assessment of the structural integrity of the basal surface of the temporal lobe in addition to the evaluation of primary language areas.

More information

Item ID: 25959
DC Identifier: http://oa.upm.es/25959/
OAI Identifier: oai:oa.upm.es:25959
DOI: 10.1016/j.yebeh.2013.07.017
Official URL: http://www.sciencedirect.com/science/article/pii/S1525505013003405
Deposited by: Memoria Investigacion
Deposited on: 14 May 2014 18:37
Last Modified: 22 Sep 2014 11:39
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