What can cause abnormal EEG?

Many individuals are subject to electroencephalog or EEG every year. This medical scan helps healthcare workers to determine whether the patient's brain works normally. The abnormal EEG result may be the result of a number of causes, including epilepsy and seizures, brain tumors, head injuries and degenerative disorders. These signals help brain cells in communication. When they react irregularly, abnormal EEG may indicate possible brain dysfunction.

The technicians measure brain signals by placing small metal discs known as electrodes over the head. The electrodes are connected to the EEG machine and this machine reads the pulses and converts them into patterns visible on a computer or other electronic screen. Trained technicians can then detect any strange features in these samples.

The physician often orders EEG if he suspects. For example, if an individual represents typical symptoms of a disorder of seizures such as epilepsy, EEG can confirm the diagnosis. Heavy shaking, body sink and temporary lossConsciousness is the primary features of most seizures. Such suspicions of brain disease are most of the abnormal findings of EEG.

Another brain dysfunction that commonly discovered EEG tests is a brain tumor. Matter can cause confusion on the effectiveness of the brain. Tumors can block blood flow into the brain - known as a cerebral heart attack - and facilitate the subsequent death of brain tissue. Brain tissue swelling as well as bleeding may also occur.

any of these problems can prevent the thinking of the brain and its related functions such as memory and attention. These changes can then be reflected in the EEG -released samples. In the case of brain infarction or encephalites - swelling of the brain - these conditions can generate in the absence of a tumor. Heavy migraines or weakened blood vessels - known as brain aneurysm - can cause similar problems.

disorders that deteriorate over time or degeneratoryDisorders can also be effectively discovered by abnormal EEG. Technicians are looking for the frequency of electrical brain activity and patterns. In a healthy individual, brain activity increases when one is conscious and fully works. Slower brain waves are among the first indicators of brain degenerative disorders such as Alzheimer's disease. In addition, some research suggests that EEG may be useful in predicting whether an individual is sensitive to progressive mental disorders such as schizophrenia or depression.

In addition to detecting a potential disorder, abnormal EEG can also provide insight into the extent of the already known state of the brain. When the individual suffers brain injuries, the tzavajnost damage and placement of injuries are essential factors of treatment. EEG results can determine these problems. In particular, the amount of brain activity is directly related to how well one thinks, understands and will work in everyday activities. Reading EEG can therefore help predict the patient recovery period for brain injury.

The changed brain activity may occur in a state that is not primarily related to the brain. Any significant changes in the overall chemistry of the body can affect the brain. Infections are one common culprit such as prolonged drug abuse or alcohol. Sleep disorders and the resulting lack of sleep may adversely affect the brain.