P300 event-related potentials in people with epilepsy: clinico-neurophysiologic study

被引:2
作者
Hasan, Lina Abdulelah [1 ,2 ,3 ]
Hamdan, Farqad Bader [1 ,2 ,3 ]
Al-Mahdawi, Akram [1 ,2 ,3 ]
机构
[1] Al Imammain Al Kadhimian Med City, Neurophysiol Unit, Baghdad, Iraq
[2] Al Nahrain Univ, Coll Med, Dept Physiol, POB 70044, Baghdad, Iraq
[3] Baghdad Teaching Hosp, Dept Neurol, Med City, Baghdad, Iraq
关键词
Epilepsy; Electroencephalography; P300; NHS3; Cognitive impairment; TEMPORAL-LOBE EPILEPSY; MONTREAL COGNITIVE ASSESSMENT; AUDITORY NUMBER ASSAYS; CHILDHOOD EPILEPSY; EEG DISCHARGES; CHILDREN; SEIZURE; ADOLESCENTS; IMPAIRMENT; VALPROATE;
D O I
10.1186/s41983-023-00700-z
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
BackgroundThere is increasing evidence that prolonged or recurrent seizures can cause or exacerbate cognitive impairment (CI) in memory, attention, orientation, and visuospatial and abstraction disabilities, all of which can jeopardize educational progress and achievement throughout life. The objectives of our study are to assess the cognitive functions in people with epilepsy (PwE) using P300 event-related potentials (ERPs), and correlate each P300 components with six explanatory variables (epilepsy type, seizure type, NHS3 score- seizure severity, disease duration, age at first seizure, and the number of anticonvulsant medications).MethodsOne hundred and two PwE [52 with focal epilepsy and 50 with generalized epilepsy, as classified by the International League Against Epilepsy in 2017]. They underwent electroencephalography (EEG) and P300. The Montreal Cognitive Assessment (MoCA) scale was used to assess baseline cognitive functions.ResultsEpileptic patients showed significant latency prolongation and amplitude reduction of P300 as compared to non-epileptic population. Longer P300 latency and lower amplitude were seen in patients with abnormal EEG records. P300 latency was longer in patients using poly-therapy. P300 components correlated well with age at presentation and disease duration but not with NHS3. According to epilepsy type, 50.98% of PwE had focal epilepsy and 49.02% had generalized epilepsy, 85.29% of them had abnormal EEG recording. Considering seizure type, 47.06% had a generalized tonic-clonic seizure, 38.24% had a focal to bilateral tonic-clonic seizure, 20.59% had a myoclonic seizure, 12.75% had a focal with impaired awareness seizure, 3.92% had a focal aware seizure, and 2.94% had an absence seizure. Seventy-seven PwE had one type of seizure, while 25 had more than one type of seizure. The NHS3 score was higher in those with a single seizure type than in those with multiple seizure types.ConclusionAll seizure types had an abnormal P300 component, indicating cognitive function deficits. P300 may be a promising objective method for assessing cognitive function in PwE. The number of antiepileptic drugs used, the presence of EEG abnormalities, the age at presentation, and the duration of the disease are the factors that best correlate with cognitive impairment (CI).
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