Personality disorders in temporal lobe epilepsy: What do they signify?

Area of Science:

• Neurology
• Psychiatry
• Epilepsy Research

Background:

• Temporal lobe epilepsy (TLE) is a common form of epilepsy, often associated with complex neurological and psychological comorbidities.
• Mesial temporal sclerosis (MTS) is a frequent finding in TLE, impacting brain structure and function.
• The relationship between TLE and personality disorders requires further investigation to understand its prevalence and impact.

Purpose of the Study:

• To determine the prevalence of personality disorders in patients diagnosed with TLE and mesial temporal sclerosis (MTS).
• To compare the prevalence of personality disorders in TLE patients with that of the general population.
• To analyze the implications of personality disorders on the treatment outcomes for TLE.

Main Methods:

• TLE diagnosis was confirmed using clinical history, MRI, and Video EEG.
• The IPDE-ICD10 screening questionnaire identified personality disorders in 120 subjects (60 TLE cases, 60 controls).
• The Bear-Fedio inventory (BFI) assessed behavioral traits in both TLE patients and control groups.

Main Results:

• Personality disorders were significantly more prevalent in TLE patients (71.7%) than in controls (38.3%) (P < .001).
• Specific personality traits like schizoid, dissocial, impulsive, anankastic, anxious, and dependent personalities were highly prevalent in TLE.
• Higher prevalence of personality disorders was observed in TLE patients with over two antiepileptic drugs (AEDs) or illness duration exceeding 10 years.

Conclusions:

• Patients with TLE exhibit a markedly higher prevalence of personality disorders.
• Integrating specific interventions for personality disorders early in treatment plans, alongside AEDs and surgical options, is recommended.
• Addressing personality disorders concurrently with epilepsy management may improve overall patient outcomes.