What is Sreda EEG?
Subclinical rhythmic EEG discharges in adults (SREDA) is a very rare benign EEG pattern. The electrophysiological features and atypical variants of SREDA has wide spectrum and they are poorly known. It resembles ictal discharges, and overinterpretation of SREDA may lead to misdiagnosis of epilepsy.
What is a benign variant EEG?
The range of benign variants includes wicket waves, rhythmic mid-temporal theta of drowsiness (RMTD or RTTD), benign small sharp spikes (BSSS, sometimes denoted BSST for benign small sleep transients), 14 and 6 positive spikes, 6-Hz “phantom” spike and wave, subclinical rhythmic EEG discharge of adults (SREDA), and the …
What is the meaning of epileptiform?
Epileptiform refers to spike waves, sharp waves, spike and wave activity, or other rhythmic waveforms that imply epilepsy or may be associated with epilepsy. However, epileptiform activity alone does not confirm a diagnosis of epilepsy.
What is the meaning of Sreda?
Sustainable and Renewable Energy Development Authority
Sustainable and Renewable Energy Development Authority (SREDA)
What are wicket spikes?
Wicket spikes (WS) are a benign eletroencephalogram (EEG) variant, seen mainly in adults, during somnolence, in the temporal regions, in many clinical situations. WS can appear in trains or isolatedly, sometimes being difficult to differentiate from epileptiform activity.
Can you have an abnormal EEG and not have seizures?
To complicate this further, some people have ‘abnormal’ EEGs but do not have epilepsy. Also, many people who do have epilepsy will only have ‘abnormal’ activity on the EEG if they have a seizure at the time the test is happening.
Are epileptiform discharges seizures?
Interictal epileptiform discharges (IEDs), meaning spikes, polyspikes, sharp waves, or spike and slow-wave complexes without observed clinical seizures, are commonly observed in children with epilepsy.
Are there subclinical rhythmic EEG discharges in adults with Sreda?
The EEGs with SREDA were reevaluated blindly by three clinical neurophysiologists. The demographic, clinical characteristics, and neuroimaging features of the patients were reviewed. Subclinical rhythmic EEG discharges in adults was present in 14 EEG records (0.06%), in nine patients.
Does Sreda increase the risk of misdiagnosis of epilepsy?
It resembles ictal discharges, and overinterpretation of SREDA may lead to misdiagnosis of epilepsy. Herein, we aimed to report patients with SREDA to identify the frequency and characterized clinical, demographic, electrophysiological features.
Is Sreda a unilateral lesion?
One patient had unilateral lesion, in whom SREDA had appeared on contralateral side of the lesion, whereas other patients with normal or nonlateralized lesions had SREDA bilaterally and symmetrical. This variant had been misdiagnosed as an ictal discharge in previous EEGs in three patients.