Latency of epileptic and psychogenic nonepileptic seizures.
| Autor: | Ozkan H; Trakya University, School of Medicine, Department of Neurology, Edirne, Turkey., Turksever M; Trakya University, School of Medicine, Department of Neurology, Edirne, Turkey., Guldiken B; Trakya University, School of Medicine, Department of Neurology, Edirne, Turkey., Sut N; Trakya University, School of Medicine, Department of Biostatistics and Informatics, Edirne, Turkey. |
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| Jazyk: | angličtina |
| Zdroj: | Arquivos de neuro-psiquiatria [Arq Neuropsiquiatr] 2023 Jul; Vol. 81 (7), pp. 641-646. Date of Electronic Publication: 2023 Jul 24. |
| DOI: | 10.1055/s-0043-1768160 |
| Abstrakt: | Background: Due to their semiological similarities, psychogenic nonepileptic seizures (PNESs) can occasionally hardly be differentiated from epileptic seizures (ESs), and long-term video-electroencephalographic monitoring (VEM) is needed for the differential diagnosis. Objective: To investigate the time of the first clinical event and its distribution on the days of VEM in ES and PNES patients. Methods: In total, a consecutive series of 48 PNES and 51 ES patients matched for gender and age were retrospectively and consecutively evaluated. The time distribution of the seizures during the day was noted. Seizure latency was determined as the time in hours from the start of the video-electroencephalographic recording to the first clinical event. Results: The seizure latency was significantly shorter in PNES patients compared to ES patients ( p < 0.001). Seventy-two percent of PNES patients and 49.1% of ES patients had their first seizure in the 24 hours of video-EEG recording ( p = 0.023). Recording longer than 48 hours was required for 12.5% of PNES patients and 37.3% of ES patients ( p = 0.006). While ESs were almost evenly distributed throughout the day, most PNESs occurred during the evening hours ( p = 0.011). Conclusion: We observed that the PNESs appeared earlier than the ESs in the VEM and were concentrated during daylight hours. Although not strictly reliable, seizure latency can contribute to the differential diagnosis of ES and PNES. Competing Interests: The authors have no conflict of interest to declare. (The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution 4.0 International License, permitting copying and reproduction so long as the original work is given appropriate credit (https://creativecommons.org/licenses/by/4.0/).) |
| Databáze: | MEDLINE |
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