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January2013 Vol.50 Issue:        1        Table of Contents
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Peak Power Frequency Changes in Patients with Migraine

 Ahmed Osama, Ahmed Abou-Hagar, Mohamed Negm, Ihab Hashish    

 Department of Neuropsychiatry, Suez Canal University; Egypt

 



ABSTRACT

Background: Electroencephalography (EEG) is a valuable technique to assess electrophysiological changes related to migraine. Its sensitivity to detect these changes has been enhanced by Quantitative electroencephalography (QEEG).  Objective: To identify the Peak Power Frequency (PPF) changes in migraine patients during (ictal) and in-between (inter-ictal) headache attacks, compared to normal subjects. Methods: The study included 20 patients with migraine without aura (Mean age 30.2 ±9.5), 20 patients with migraine with aura (Mean age 33.3±13.6) and 20 control subjects (Mean age 35.2±9.1). The diagnosis of migraine depend on International Headache Society (HIS) criteria. Quantitative electroencephalography from, at least, 2 minutes, eyes closed, resting EEG was done according to 10/20 system.  The PPF was used for quantitative analysis of the EEG results. Results: In migraine without aura patients; the PPF at theta frequency band was significantly more frequent and the PPF at Alpha frequency band was significantly less frequent in all electrodes ictally (except at F4 and Fz electrodes) and inter-ictally (except at F3, P7, T7 and occipital electrodes). In migraine with aura patients; the PPF at theta frequency band was significantly more frequent and the PPF at Alpha frequency band was significantly less frequent in all electrodes ictally. There was no significant change in any electrode interictally compared to control subjects (except at Fp1 and T8 electrode). Significantly, PPF at theta frequency band was more frequent and the PPF at Alpha frequency band was less frequent ictally in frontal, central and occipital electrodes compared to inter-ictal state. [Egypt J Neurol Psychiat Neurosurg.  2013; 50(1): 67-72]

Key Words: EEG, QEEG, Migraine.

Correspondence to Mohamed Negm, Department of Neuropsychiatry, Suez Canal University, Egypt.Tel.: 01005641148          e-mail: mohnegm2@yahoo.com





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