Factors affecting long-term prognosis in adult patients with psychogenic non-epileptic seizures

Turksever, Meliha and Guldiken, Baburhan and Ozkan, Hulya and Cakar, Merve Melodi (2024) Factors affecting long-term prognosis in adult patients with psychogenic non-epileptic seizures. IDEGGYOGYASZATI SZEMLE / CLINICAL NEUROSCIENCE, 77 (1-2). pp. 21-26. ISSN 0019-1442

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Abstract

Background and purpose – Among epileptic patients who are monitored using the video-electroencephalography monitoring (VEM) technique, in some patients a psychogenic non-epileptic seizure (PNES) can be identified as a definitive diagnosis. The longterm prognosis of these patients is not well known. In this study, we aimed to determine the factors that affect the prognosis of PNES. Methods – Forty-one PNES patients diagnosed using VEM between 2012 and 2022 were questioned about their PNES frequencies in the last 12 months. According to their semiological characteristics, PNES types were divided into motor and non-motor seizures. The effects of clinical characteristics (e.g. age, gender, marital status, education level and PNES type) on the prognoses were identified. Results – Twenty-one PNES patients (51.2%) had long-term seizure freedom after VEM. Thirteen of them (31.7%) entered the seizure-free period immediately after VEM, and the other eight (19.5%) continued suffering from PNES for several years and became seizure free in the last 12 months. In the poor-prognosis group, female cases showed worse prognoses than male cases. The prognoses of motor and non-motor PNES types did not show significant differences. Conclusion – This study showed that 51.2% of the PNES patients examined had long-term seizure freedom and that female patients had worse prognoses than male patients.

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