Types of EEG examination

Types of EEG examination

1. Awake EEG. That is, when the EEG is recorded, the patient is in a state of sober state. At present, the general requirements are traced for more than half an hour. In the process of recording, patients should cooperate with eye opening, closing eyes, and changing breathing. Sometimes flash stimulation and sphenoidal electrodes are added to improve the ability to catch abnormal brain waves.EEG machine

2. Sleep EEG. When recording, the child is asleep, but not after sleeping. It is best to start with sober state, including drowsiness, light sleep and deep sleep. Generally speaking, abnormal EEG is most likely to occur during sleep, so sleep EEG is one of the best ways to detect abnormal EEG waves. Sleep without sleeping pills is best, because sleeping with sleeping pills can quickly lead to deep sleep, missing out on the most likely time to detect abnormal EEG, and studies have shown that sleeping pills interfere with EEG results and reduce the chance of abnormal EEG during sleep. Therefore, we do not advocate that patients take sleeping pills for EEG, but should sleep naturally or sleep deprivation for EEG. For children who are too young to cooperate, sedatives can be used and chloral hydrate is recommended. EEG machine

3 and 24 hours EEG. The feature is that the recording time is longer, and the recording time is 24 hours. The disadvantage is that the anti-interference ability is poor, the patient's activity can not be videotaped, epileptic seizures and EEG relationship is difficult to determine. The new machine also uses digital technology, positioning more accurate and reliable, EEG recording technology has been greatly improved. Generally, no epileptiform waves were recorded on routine wake-up and sleep EEG, while patients with high suspicion of epilepsy and those who had taken full course of medication and had no epileptic seizures were required to undergo 24-hour AEEG examination before withdrawal.

4. Video EEG (video EEG). The latest video EEG uses digital video recording devices to record the patient's condition and EEG in time is highly synchronized. At the same time, the behavioral manifestations of the video and audio recording patients and the recording of EEG changes and other physiological indicators, such as electrocardiogram, respiration, heart rate, electromyography and so on, determine the length of the recording time according to the condition of the disease, short for half an hour, long for several days, generally half a day or so, including the awake part and the sleep part, that is, including the front. EEG and sleep EEG are described, but not two. The diagnosis of epilepsy mainly depends on the characteristics of epileptic seizures. Epilepsy can not be diagnosed without the characteristic manifestations of epilepsy. Typical seizure manifestations are important for the diagnosis of epilepsy. Common manifestations include major seizures, partial motor seizures and absence seizures. The person who has witnessed the epilepsy is the best person to provide the history of the disease. Because the person who has witnessed the epilepsy is not a medical worker or a specialist in logarithm, the description is often not very accurate. If a third person who has not witnessed the epilepsy is allowed to provide the condition, it may be very different from the real situation. Therefore, it is emphasized that the person who provides the medical history is the witness, how much to see and how much to say. In most cases, the doctor can not see the patient's seizures. However, with the development of video-EEG technology, more and more patients can be recorded. Doctors can record, in chronological order, the onset of a seizure, the location of the body, the onset of the seizure, the duration of the seizure, mental clarity, and abnormal changes in EEG over the same period. It is very important to diagnose and distinguish epilepsy and to help classify epilepsy. This equipment has strong anti-interference performance, especially suitable for children with uncooperative, multiple seizures, frequent seizures, and refractory epilepsy. Video EEG can significantly improve the diagnostic accuracy of epilepsy.EEG machine