Video EEG

Date of Procedure: November 18, 2006

CLINICAL HISTORY: D is a 15 month male born at full-term with history of infantile spasms and developmental delay

RECORDING DATA: Scalp electrodes were applied according to the International 10/20 system of electrode placement. Zygomatic electrodes were also used. The recording was made on the Nihon Kohden digital system.

DIGITAL EEG ANAYSIS: Automatic spike and seizure detection programs were applied.
Background activity: The background during the awake state consisted of a mixture of felta, theta, and alpha activities ranging from 4-7 Hz, which was bilaterally symmetrical. During sleep, the background consisted of a mixture of delta and theta activity ranging from 2-5 Hz. Sleep spindles, vertex waves, and K complexes were seen bilaterally.

INTERICTAL FINDINGS: Occasional spike and wave activity was seen in the right temporal-partietal-occipital region and independently occasionally spike and wave activity was seen at left temporal-parietal-occipital region. No ongoing seizure was noted.

CLINICAL EVENTS: A total of 10 events were recorded by the parents. These events were characterized by rapid eye blink. None of these episodes showed evolution of epileptiform activity.

IMPRESSION: This was an abnormal video monitoring recording.
1) The background was slow. This finding may suggest diffuse neuronal dysfunction.
2) Occasional spike and wave activity was seen in the tight temporal-parietal occipital region and independently occasional spike and wave activity was seen in the left temporal parietal occipital region. These findings may suggest increased risk of epileptic seizures.
3) A total of 10 events were recorded by the parents. These events were characterized by rapid eye blink and staring. None of these episodes showed evolution of epileptiform activity so therefore; these events were probably nonepileptic in nature.
Clinical correlation was suggested.