Predicting psychogenic non-epileptic seizures from serum levels of neuropeptide y and adrenocorticotropic hormone

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Objective
Patients with psychogenic non-epileptic seizures (PNES) may present with convulsive events that are not accompanied by epileptiform brain activity. Video-electroencephalography (EEG) monitoring is the gold standard for diagnosis, yet not all patients experience convulsive episodes during video-EEG sessions. Hence, we aimed to construct a predictive model in order to detect PNES from serum hormone levels, detached from an evaluation of patients’ convulsive episodes.
Methods
Fifteen female patients with PNES and 60 healthy female controls participated in the study, providing blood samples for hormone analysis. A binomial logistic regression model and the leave-one-out cross-validation were employed.
Results
We found that levels of neuropeptide Y and adrenocorticotropic hormone were the optimal combination of predictors, with over 90% accuracy (area under the curve=0.980).
Conclusions
The ability to diagnose PNES irrespective of convulsive events would represent an important step considering its feasibility and affordability in daily clinical practice.
OriginalsprogEngelsk
TidsskriftActa Neuropsychiatrica
Vol/bind31
Nummer3
Sider (fra-til)167-171
ISSN0924-2708
DOI
StatusUdgivet - jun. 2019

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