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Published on: August 5, 2014
Evaluating executive function in patients with temporal lobe epilepsy using the frontal assessment battery
Elmira Agah1, Nasima Asgari-Rad2, Mona Ahmadi2
1School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; NeuroImmunology Research Association (NIRA), Universal Scientific Education and Research Network (USERN), Tehran, Iran; Students' Scientific Research Center, Tehran University of Medical Sciences, Tehran, Iran.
Temporal lobe epilepsy (TLE) patients exhibit executive dysfunction, measurable by the Frontal Assessment Battery (FAB). Recent seizures negatively impact FAB scores, highlighting FAB
Area of Science:
- Neuroscience
- Clinical Psychology
- Epileptology
Background:
- Executive dysfunction is a known complication in temporal lobe epilepsy (TLE).
- The Frontal Assessment Battery (FAB) is a brief neuropsychological test designed for clinical assessment of frontal lobe functions.
- Assessing executive function deficits is crucial for managing TLE patients.
Purpose of the Study:
- To determine the clinical utility of the Frontal Assessment Battery (FAB) in detecting executive dysfunction in temporal lobe epilepsy (TLE) patients.
- To investigate the relationship between TLE, executive functions, and clinical factors such as seizure recurrence and antiepileptic drug (AED) use.
Main Methods:
- A cohort of 48 TLE patients and 48 age- and sex-matched healthy controls were evaluated.
- Participants completed the Frontal Assessment Battery (FAB), assessing various executive functions.
- Statistical analyses were performed to compare FAB scores between groups and identify predictors of performance.
Main Results:
- TLE patients demonstrated significantly lower total FAB scores compared to healthy controls.
- Specific executive functions, including mental flexibility, motor programming, sensitivity to interference, and inhibitory control, were impaired in TLE patients.
- The time since the last seizure was a significant predictor of FAB performance, with scores lower in patients evaluated within a week of a seizure.
- Sodium valproate use was associated with impaired mental flexibility, though the overall number of AEDs did not significantly affect executive function.
Conclusions:
- Executive dysfunction is prevalent in TLE, and the Frontal Assessment Battery (FAB) is a clinically applicable tool for its assessment and monitoring.
- The recency of seizures is a critical factor influencing executive functioning in TLE patients, with performance potentially declining for up to seven days post-seizure.
- Clinicians should consider the cognitive side effects of antiepileptic drugs (AEDs), particularly sodium valproate's impact on mental flexibility, when managing TLE patients.
