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Neuropsychiatric features of the coexistence of epilepsy and psychogenic nonepileptic seizures

2018; Elsevier BV; Volume: 111; Linguagem: Inglês

10.1016/j.jpsychores.2018.05.014

1879-1360

Gislaine Baroni, William Alves Martins, Vitória Lucietto Piccinini, Marcelo Pereira da Rosa, Luciano de Paola, Eliseu Paglioli, Regina Margis, André Palmini,

Schizophrenia research and treatment

To investigate demographic, epidemiologic and psychiatric features suggestive of the coexistence epilepsy (ES) and psychogenic nonepileptic seizures (PNES) that may contribute to precocious suspicion of the association. In this exploratory study, all patients older than 16 years admitted to prolonged video-electroencephalogram monitoring were evaluated about demographic, epileptological and psychiatric features. Detailed psychiatric assessment using M.I.N.I.-plus 5.0, Beck Anxiety Inventory, Beck Depression Inventory and the Childhood Trauma Questionnaire (CTQ) was performed. Data were collected previous to the final diagnosis and patients with ES-only, PNES-only or coexistence of ES/PNES were compared. Of 122 patients admitted to epilepsy monitoring unit, 86 patients were included and 25 (29%) had PNES. Twelve (14%) had PNES-only, 13 (15%) had ES/PNES and the remaining 61 (71%) had only ES. A coexistence of ES and PNES was associated with clinical report of more than one seizure type (p˂0.001), nonspecific white matter hyperintensities on MRI (p < .001) and a past of psychotic disorder (p = .005). In addition, these patients had significantly more emotional abuse and neglect (p < .002 and 0.001, respectively). Somatization (including conversion disorder) was the most common diagnosis in patients with PNES- only (83%) and co-existing of PNES and ES (69.2%), differentiating both from ES-only patients (p < .001). The high prevalence of this coexistence ES/PNES in this study reinforces a need to properly investigate PNES, especially in patients with confirmed ES who become refractory to medical treatment with antiepileptic drugs. The neuropsychiatric assessment may help to diagnostic suspicion and in the planning of therapeutic interventions.