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Questions posted in the
Neurology and Neurosurgery Forum have been answered by doctors from The Cleveland Clinic Foundation.
Question Title: Brain Wave Study ResultsForum: Neurology Forum
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What does it mean if a person has an"abnormally rapid EEG" during a Sleep Study? Is this caused by Sleep Apnea itself and would you find this in all persons' who are diagnosed with Sleep Disorders? I have the impression .that it can be worrisome. Why??? Does this imply some stroke or pre-stroke concern? I am not on any medications. Should this be followed up in some way; by whom? Thank You = Numerous parameters are judged within the EEG as part of a sleep study, and it it is not clear which part of the EEG the comment refers to, is it the overall rythym, background rythym etc ? This is not part of the routine findings in sleep apnea and is not associated with sleep disorders in general, there is no reason to suggest any association with an increased risk of stroke. The finding may simply be a normal variant without any pathological significance. Since the EEG recording performed as part of a sleep study is usually quite limited and records from only a limited area of the brain the best way to study this further would be to have a full routine EEG specifically to address this issue. The comment on the EEg is usually only a peripheral issue in a sleep study,so a specific look at the EEG is probably the best course.
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