Electroencephalogram and Visual Evoked Potential Changes in Patients with Primary Headaches
Keywords:EEG, VEP, migraine headache, non-migraine headache.
This study was a case/control study in which a total of (450) subjects, into (150) with primary headache ( male
and female) and this was included in this study, 128 with migraine headache, 22 with non-migraine headache
and 300 were normal, as control group. The electrophysiological tests were done at the neurophysiology unit
of Mirjan Teaching hospital in Babylon City, during the period from 28 / October/ 2014 until 22 / May/2015.
This study reveals that involvement of the migraine are more than that of the non-migraine in headache
patients when compared with control group and when compared between the migraine and non-migraine
headache patients. The most common EEG changes in headaches patients were diffuse slowing and spike
wave of back ground activity, in such a way that 54 (42.2%) migraine patients had abnormal EEG changes,
in comparison to 4 (18.2%) of non-migraine patients. Visual evoked potential (VEP) was dependable marker
for central nervous system affection in primary headache (migraine and non-migraine ) and the most common
abnormalities were prolonged latency and amplitude is stay in normal ranged (5-10) µ.volt.
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