در تشخيص ميگرن كودكان بين 5 تا 51 ساله )EEG( ارزش الكتروانسفالوگرافي

Diagnosis value of eletroencephalography (EEG) for migraine in children aged five-fifteen years old

Diagnosis of migraine in children may encounter with some difficulties due to their low ability to express the disease history, and some of the affected children with a diversity of symptoms may face with some invasive treatment measures like surgery. The present study was carried out to evaluate the diagnostic value of EEG for migraine in 5-15 years old children. The sample consisted of 70 children with symptoms such as headache, vertigo and abdominal pain, referred to the hospital or private clinics. A stimulating EEG was recorded from all of the patients. The diagnosis of migraine was based on the WHS and HIS codes. In 57% of the cases, headache, vertigo and abdominal pain attack lasted 1-6 hours, in 34% the duration was more than 6 hours with a maximum of 2 days and in 9% the duration was less than 1 hours for more than two days. The main complaints of the patients in 42.5% of the cases were nausea and vomiting. Light was the most important predisposing factor for the migraine attacks (32%). 57% of the patients had a common migraine and 10% a classic migraine. More than 34.2% of the patients complained of vertigo. Abnormal EEG changes were present in 31% of the cases, including, sharp waves observed in 18.6%, spike waves in 3.9%, and focal slowing in 8.5%. Eighty one percent of the patients with abnormal EEG had a common headache, 18% had a classic headache and the rest could not localize the pain. 58% of the patients with an abnormal EEG complained of vertigo as well. EEG changes were significantly different between children of 11-15 years old and those of under I 1 years old. Also the probability of an abnormal EEG in patients with migraine and vertigo was significantly higher than those with migraine headache without vertigo. The EEG changes in bi-or unilateral headache were similar. The study showed no relationship between frequency or predisposing factors of recurring migraine attacks and EEG changes. Therefore while EEG is not a definitive method for diagnosis of migraine, but in suspected cases the EEG changes may be attributed to migraine headache and if the vertigo associates with headache the two symptoms will increase the chance of migraine diagnosis.