Seizure cycles occur in more than 80% of people with epilepsy, a retrospective analysis found.
These cycles most often were circadian, but also included weekly and longer periods, reported Mark Cook, MD, of the University of Melbourne in Australia, and co-authors in The Lancet Neurology.
“There are patterns to when epileptic seizures occur, but these are hard to recognize unless you collect lots of data,” Cook told MedPage Today.
“The patterns are important across the course of a day, but there are also patterns over weeks and months.”
“While there has been extensive documentation about circadian (24-hour) patterns of seizures, longer cycles have been less frequently studied,” he added.
“We thought that cycles existed in women related to hormones, but in fact they are just as common in men. We don’t yet know what controls these cycles.”
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