Functional Seizures: The Epilepsy Mimic Clinicians Miss
2 minute read
Listen to resource
Audio generated by DropInBlog's Blog Voice AI™ may have slight pronunciation nuances. Learn more
What Does the Research Say?
Functional Seizures: The Epilepsy Mimic Clinicians Miss
Up to a third of patients referred for "refractory epilepsy" actually have functional seizures. Misdiagnosis means wrong medications, preventable side effects, and years without effective treatment.
20-30%
of patients referred to epilepsy monitoring units for uncontrolled seizures have psychogenic nonepileptic seizures (functional seizures), not epilepsy.
Key Numbers Clinicians Need
10-30%
Also have epilepsy
Functional seizures and epileptic seizures can coexist in the same patient. Both event types must be characterized separately.
>2 min
Typical event duration
Functional seizures tend to last longer than epileptic seizures, which typically resolve in under two minutes.
⚠️
Every year patients spend on the wrong antiseizure medications is a year of preventable side effects without therapeutic benefit. Functional seizures do not respond to antiseizure drugs. They require psychological and rehabilitative treatment.
3 Takeaways for Your Practice
1
Assessment Strategy
Know the Semiological Red Flags
Prolonged duration, waxing-and-waning intensity, eye closure, side-to-side head shaking, preserved awareness during bilateral motor activity, and rapid postictal reorientation all suggest functional seizures. No single feature is diagnostic, but the overall pattern matters.
2
Referral Priority
Video-Electroencephalographic Monitoring Remains the Gold Standard
Capturing a typical event on video-electroencephalographic monitoring with absence of epileptiform activity provides the definitive diagnosis. Surface electroencephalography alone may miss deep or mesial seizures, so clinical correlation is essential.
3
Treatment Redirection
Treatment Is Rehabilitation and Psychology, Not Medication
Cognitive behavioral therapy has the strongest evidence base for functional seizures. Physical therapy and multidisciplinary rehabilitation address associated disability. The sooner patients receive the right treatment, the better the outcomes.
This content is for informational purposes for licensed clinicians and does not constitute medical advice or a substitute for your own clinical research and judgment. Content may include AI-synthesized information; all clinical data, protocols, and dosages must be verified against official primary sources prior to patient care. Any reference to CE rules or regulations is provided as a guide and must be independently verified against current governing body requirements prior to completing credits. This article may contain links to external websites or third-party AI platforms. Ridley Learning has no control over the nature, content, and availability of those sites and does not necessarily endorse the views expressed within them. Ridley Learning is not liable for any injury, loss, clinical outcomes, or licensure issues resulting from the use of or reliance on this information. Your use of this site constitutes acceptance of these terms.
Unlimited CE Membership
Get Unlimited Access CE
To get CE Credit for learning in this subject, check out the Unlimited Access membership - and get courses on this subject and more! With an Unlimited Access CE Membership, you get instant access to courses to meet your CE needs — whenever you need them.
