EEG diffuse slow wave

The diffuse slow wave of EEG is mainly θ wave and δ wave. Under pathological conditions, localized slow wave appears in localized epilepsy, brain tumor, brain abscess, traumatic hematoma and cerebrovascular disease with softening lesions. , has the value of positioning diagnosis. Diffuse slow activity is seen in certain infections, poisoning, hypoglycemia, increased intracranial pressure, and coma caused by various causes. Basic Information Specialist classification: neurological examination classification: neuroelectrophysiology Applicable gender: whether men and women apply fasting: not fasting Tips: Wash your hair, don't lick the oil to avoid interference; don't eat too much, to prevent hypoglycemia from affecting the results; check the previous day to stop the various drugs, you can not stop the drug to explain the name, dosage and usage, for doctors . Normal value The frequency of normal human EEG is almost entirely composed of α wave and β wave. The amplitude and frequency of the waveform are uniformly symmetrical on both sides, the frequency is constant, and the amplitude can be different by 30 on both sides. Clinical significance Abnormal result The electroencephalogram of benign tumors or deep brain tumors is mostly θ wave or only θ wave, and malignant tumors are often δ wave. Need to check the crowd: localized epilepsy, brain tumors, brain abscess, traumatic hematoma and cerebrovascular disease with softening lesions and infection, poisoning, hypoglycemia, increased intracranial pressure and various causes of coma. Precautions Before the examination: the hair is washed, do not rub the oil to avoid interference; do not eat enough to prevent the hypoglycemia from affecting the results; the day before the examination to stop the various drugs, can not stop the drug to explain the name, dosage and usage, can be used for doctors reference. Requirements for examination: don't be nervous, the muscles are relaxed or the brain current is disturbed; in addition, blink, close your eyes or breathe as required by your doctor. Inspection process Sitting or lying, closing your eyes, quiet, relaxing, not moving, getting ready, the doctor takes the patient quietly and then checks the EEG. Not suitable for the crowd Inappropriate crowd: no Adverse reactions and risks Nothing.