|
|
|
|
The only abnormality consistently reported in headache patients,as opposed to controls,in studies of relatively nonflawed design was a prominent photic driving response at high flash rates(the"H-response").The H- response was less effective than clinical criteria in distinguishing patients with headaches from individuals without headaches and in distinguishing migraine from other headache types.Studies did not show that the EEG is an effective screen for structural causes of headache,nor does the EEG effectively identify headache subgroups with different prognoses.We conclude that the EEG is not indicated in the routine evaluation of patients presenting with headache. |
|