Document Detail

Atypical presentation of subclinical rhythmic electrographic discharge of adults (SREDA) in a patient with idiopathic generalized epilepsy.
MedLine Citation:
PMID:  22558646     Owner:  NLM     Status:  In-Process    
Subclinical rhythmic electrographic discharge of adults (SREDA) is considered a benign EEG pattern of uncertain significance, although it may closely resemble an electrographic seizure pattern. SREDA was first described by Westmoreland and Klass in 1981 as a distinctive rhythmic and rare EEG pattern primarily seen in older subjects. The typical pattern consists of sharp contoured, non-evolving 5 to 7 Hz theta rhythm with a widespread bilaterally synchronous distribution, but maximal over the parietal and posterior temporal regions. It usually lasts for a few seconds to several minutes without clinical association. Later in 1997, several unusual variants of SREDA were reported consisting of variations infrequency, morphology, topographic distribution, duration, and stage of alertness. We report SREDA in a patient with idiopathic generalized epilepsy which shows some atypical features (such as asynchronous onset, bifid waveforms, asymmetry, and fragmentation) and mimics a secondarily generalized partial seizure. It is important to successfully identify SREDA to avoid misdiagnosis and incorrect treatment. The technologist's contribution is essential and valuable. EEG technologists and interpreters should be aware of typical and atypical features of SREDA and its wide spectrum.
Rajesh P Poothrikovil; Abdullah Al Asmi; Arunodaya Gujjar
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Neurodiagnostic journal     Volume:  52     ISSN:  2164-6821     ISO Abbreviation:  Neurodiagn J     Publication Date:  2012 Mar 
Date Detail:
Created Date:  2012-05-04     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101573167     Medline TA:  Neurodiagn J     Country:  United States    
Other Details:
Languages:  eng     Pagination:  42-53     Citation Subset:  IM    
Department of Clinical Physiology, Sultan Qaboos University Hospital, Muscat, Sultanate of Oman.
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