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Need Information about seizure type?

Tue, 04/11/2006 - 19:12
Scalp EEG with scalp elecrtodes of International 10/20 system - Age 4 1/2 at that time now 7 1/2 Background consisted of a fair well regulated alpha rhythm of 8-9 Hz, seen maximally over the posterior head regions and responded to eye opening and closing. Sleep and drowsiness were obtained and associated with slowing of the background rhythm, vertix sharp waves and spindles. There were several 3-5 second bursts of rhythmic high amplitude delta (up to 750 microvolts) seen during sleep. The discharges were predominately bifrontal 3-4 Hz. There were intermixed spike and slow waves and sharp and slow waves as well as sharply configured delta. The frequency was 3-4 Hz. Only one episode was associated with a clinical jerk. The onset was predominatly bifrontal. The frequency was 3-4 Hz. The burst was an admixture of sharply configured delta, amplitudes were 750 microvolts. Step-wase, photic stimulation for 10 second periods produced no appreciable driving response at frequencies from 1-30 Hz. Hyperventilation was not performed secondary to no cooperation. There was some excess muscle and movement artifact which limited their interpretation. The study lasted 1.5 hours. Impression: This EEG is abnormal because of bursts of epileptiform discharges, occurring during sleep, which were predominatly bifrontal. This finding is associated with irritatie and potentially epileptogenic activity. I have a couple of questions about this EEG and hoped someone out there might be able to help us understand this EEG. 1. Is it very common to see this type of EEG being a False-Positive? (Probability) 2. What type of seizures might we see from this type of EEG? (Petit Mall, Movements, Vocalizations?) 3. Would these seizures be considered Frontal lobe seizures with secondary generalized or just generalized? 4. What part of the brain are affected with these? 5. What does "irritatie and potentially epilptogenic activity mean? 6. Are these type of seizures only seen when she was sleeping or also when she was awake? 7. Or any other information you can give us about how to interpret EEGs Would this type of activity generally go away as a child gets older? We will be going to Mayo at the end of the month to get another EEG done and to see a pediatric neurologist and want to understand the activity that was seen on the last EEG so we will know what type of questions to ask the neurologist. What type of mediations would be used for these type of seizures? Also, can these discharges be from a brain abnormality in that area? Thank You Diana at wind_decor@yahoo.com Edit/Delete Message

Comments

Re: Need Information about seizure type?

Submitted by kayakmom on Wed, 2006-04-12 - 09:12
http://www.emedicine.com/neuro/topic128.htm#section~distinction_from_normal_or_nonspecific_sharp_transients http://www.emedicine.com/neuro/ELECTROENCEPHALOGRAPHY_ATLAS.htm I hope that these can help some with the terms.... [q]Impression: This EEG is abnormal because of bursts of epileptiform discharges, occurring during sleep, which were predominatly bifrontal. This finding is associated with irritatie and potentially epileptogenic activity.[/q] from what I understand ( NOT a doctor, just a mom who reads so ONLY an opinion)....Sounds like this shows a potential to have seizures and did not actually capture an event. Most neuros I have talked to say that you CAN have an abnormal EEG and not have seizures, just like you can have a normal one and HAVE seizures ...(NOT an exact Science in my book) Can your current neuro answer any of this? I would ask what types of seizures are suspected. I know that there are certain types more common to be outgrown, like Benign occipital, Benign Rolandic and Familial Frontal (I think that is it).....Best chance of outgrowing is finding control with 1st or second medication tried etc... I wish you well as you head to Mayo!! Gin

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