Abstract
BackgroundPsychogenic nonepileptic seizures (PNES) are major challenges for diagnosis and management. The heterogeneity of psychogenic seizures is attributed to diverse psychopathological comorbidities, and the causal relationship between PNES and underlying psychopathologies is still enigmatic. ObjectiveOur objective was to study psychiatric comorbidities and personality constructs in patients with PNES and compare them to a control group of patients with epilepsy. MethodWe randomly recruited 33 patients with PNES and 33 patients with epilepsy. All patients completed the Mini-International Neuropsychiatric Interview (MINI) to screen for psychiatric comorbidities, the Structured Clinical Interview for psychiatric disorders in Axis II (SCID II) to screen for personality disorders, and Goldberg’s International Personality Item Pool (IPIP) Big Five personality questionnaire to study the psychological constructs of extroversion–introversion, agreeableness, conscientiousness, emotional stability–neuroticism, and intellect. ResultMood and anxiety disorders were highly prevalent in patients with PNES (72.7% and 54.5%, respectively); however, the prevalence of only cluster B personality disorder was higher in patients with PNES (69.7%) compared to 33.3% among patients with epilepsy (p < 0.05). Screening for personality disorders using SCID II showed that the prevalence of borderline and depressive personality disorders was significantly higher in patients with PNES (p < 0.001). Patients with psychogenic seizures were more likely to be receiving polydrug therapy (75.8%) compared to patients with epileptic seizures (45.5%); this difference was statistically significant (p < 0.05). ConclusionPsychiatric comorbidities are highly prevalent among patients with PNES.
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