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Hippocampal body changes in pure partial onset sleep and pure partial onset waking epileptic patients.
MedLine Citation:
PMID:  23283529     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The aim of the current study was to evaluate for the first time the hippocampal changes in patients with pure sleep and pure waking epilepsy. A total of 35 patients with pure partial onset sleep epilepsy and 35 patients with pure partial onset waking epilepsy matched for age and sex ratio were enrolled. MR images were analyzed to determine hippocampal body changes. Rounding ratio of hippocampal body was defined as short axis divided by long axis and hippocampal bodies with ratios ≥0.70 were considered rounded. Hippocampal sclerosis and atrophy were found in nine (25.7 %) and seven (20.0 %) patients with pure sleep epilepsy, and in 12 (34.3 %) and 11 (31.4 %) patients with pure waking epilepsy, respectively (P > 0.05 for the comparison between sleep and waking epilepsy). However, proportion of subjects with rounded hippocampal bodies (15, 42.9 % vs. 3, 8.6 % for patients with sleep and waking epilepsy, respectively) and rounding ratios of both left and right hippocampal bodies (0.66 ± 0.13 and 0.61 ± 0.12, respectively for left and right hippocampal bodies in sleep epileptic patients vs. 0.57 ± 0.11 and 0.55 ± 0.11, respectively for left and right hippocampal bodies in waking epileptic patients) were increased in patients with sleep epilepsy (P < 0.05). Further, in sleep epileptic patients with left sided hippocampal body rounding, epileptiform discharges were more readily lateralized to the left temporal lobe (P < 0.05). In conclusion, hippocampal sclerosis and atrophy are not different between pure partial onset sleep and waking epileptic patients. However, rounding ratio and frequency of hippocampal body rounding are increased in sleep epileptic patients.
Authors:
Mahmood Motamedi; Ali Zandieh; Alireza Hajimirzabeigi; Majid Tahsini; Fatemeh Vakhshiteh; Elham Rahimian
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-3
Journal Detail:
Title:  Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology     Volume:  -     ISSN:  1590-3478     ISO Abbreviation:  Neurol. Sci.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-3     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100959175     Medline TA:  Neurol Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Neurology, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran, motamedi@sina.tums.ac.ir.
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