Cognitive dysfunction at epilepsy onset as a marker for seizure recurrence.

Area of Science:

• Neurology
• Neuropsychology
• Epilepsy Research

Background:

• Cognitive dysfunction is linked to seizure control in epilepsy.
• Prospective studies on cognitive dysfunction predicting recurrence in early epilepsy are lacking.
• First unprovoked seizure (UFS) and new onset epilepsy (NOE) are critical early stages.

Purpose of the Study:

• To investigate the role of cognitive dysfunction in predicting seizure recurrence.
• To examine cognitive function in individuals with first unprovoked seizure (FS) and new onset epilepsy (NOE).

Main Methods:

• 33 adult participants (18 FS, 15 NOE) from Halifax First Seizure Clinic (HFSC) underwent cognitive screening.
• Cognitive assessment was done at baseline (3 months post-diagnosis).
• Seizure recurrence was tracked one year after the initial HFSC visit.

Main Results:

• 76% of patients with seizure recurrence showed cognitive impairment versus 55% without.
• Speed/executive functions and memory were most affected cognitive domains.
• A regression model including cognitive factors significantly predicted seizure recurrence (p=.007).

Conclusions:

• Subtle cognitive dysfunction in executive functions and memory is prevalent in early epilepsy.
• Cognitive factors, alongside MRI and EEG, show potential for predicting seizure recurrence in FS and NOE.
• Early cognitive assessment may aid in managing epilepsy prognosis.