to your frequent questions.
What can I expect when I get there?
The nursing staff and EEG technicians will discuss each part of the procedure with you prior to beginning that part. The nursing staff may place an intravenous catheter in your arm so medication can be administered quickly, should it be needed. The EEG technician will attach recording electrodes to your scalp. A device may be placed on your finger to measure oxygen levels in the blood, heart monitor patches may be applied to your chest to record her heart rhythm, blood pressure may be checked, and on some occasions a blood sample may be obtained.
How is the video-EEG recording performed?
An EEG monitors electrical impulses in the brain and records the brain's activity via computer. The electrical activity of the brain is detected by small metal disks that are glued to the scalp. The EEG technologist will measure your head and mark with pencil precise locations for placement of each of the electrodes. A dissolvable glue will be used by the technologist to attach the electrodes to your scalp. Small pieces of gauze may also be glued to the electrodes to help secure them to your scalp for the entire recording session. The technologist then applies a small amount of gel between the electrodes and the scalp. You may feel a scratching sensation when the technologist uses an instrument to rub the skin beneath the electrodes. The rubbing is done to insure a good connection between the electrodes in the scalp. Remaining still during the procedure is important. Placing the electrodes on the scalp can take up to an hour.
The wires from the electrodes are attached to a small device worn in a waist pack. Brain wave activity information is transmitted from the device to a computer. The monitoring unit team regularly watches your EEG recordings on this computer in a nearby room. There is also a video recording that is continuously monitored to assist in alerting your nurse when seizure activity develops. At periodic intervals, your epilepsy physician will review the data recorded with video and EEG and will meet with you to discuss the results.
During the recording you will be confined to the monitoring room with a private bathroom for your use. Although most of the activity within the room is recorded, every effort is made to respect your privacy. For example, the camera is movable and will be turned away when you take a bath or change clothes. No video recording is taken in the bathroom.