Sleep seizures versus wake seizures: A comparative hospital study on clinical, electroencephalographic and radiological profile
Background: Epileptic seizures, predominantly or exclusively during sleep had been the focus of attention for many electroencephalographers. Though few epileptic syndromes are associated with sleep seizures (SS) its frequencies in Indian patients is still unknown. Aim: To find out the patterns of ep...
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Published in | Neurology India Vol. 56; no. 2; pp. 151 - 155 |
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Main Authors | , , , , |
Format | Journal Article |
Language | English |
Published |
India
Medknow Publications on behalf of the Neurological Society of India
01.04.2008
Medknow Publications and Media Pvt. Ltd Medknow Publications & Media Pvt. Ltd |
Subjects | |
Online Access | Get full text |
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Summary: | Background: Epileptic seizures, predominantly or exclusively during
sleep had been the focus of attention for many
electroencephalographers. Though few epileptic syndromes are associated
with sleep seizures (SS) its frequencies in Indian patients is still
unknown. Aim: To find out the patterns of epilepsies in patients
having SS and compare them with patients having wake seizures (WS).
Setting and Design : Open label hospital based study. Materials and
Methods: One hundred and forty-four (13%) patients having predominantly
SS were compared with 976 (87%) patients of WS by various clinical,
electrophysiological and radiological factors. Statistical Analysis:
Chi square test and student T test, using software SPSS (version 10,
1999) was applied to compare various parameters. Relative risk was
calculated by 2 x 2 contingency table. Results: The seizure semiology
was better defined in patients with WS and GTCS was more common in SS (
P = 0.001). Wake-electroencephalogram (EEG) was abnormal in
significantly ( P = 0.001) higher number of patients with WS.
Symptomatic etiologies were found in more than half patients. Left lobe
involvement was more common in patients having SS ( P = 0.000). After
symptomatic, idiopathic generalized and frontal lobe epilepsy were most
frequent with SS. Undetermined epilepsy was found in 37 (25.7%)
patients with SS. Conclusion: Epilepsies associated with SS were less
frequent and had symptomatic cause in most cases. Left hemispherical
and frontal lobe lesion were more commonly associated with SS. Frontal
lobe and idiopathic generalized epilepsy was most frequent in patients
of SS. Sleep EEG should always be done in patients with sleep seizures. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0028-3886 1998-4022 |
DOI: | 10.4103/0028-3886.41992 |