Does the duration of video-EEG recording influence diagnostic yield in pediatric epilepsy: Results from a single
Mohammed A Al-Omari1, Andrea Andrade2, Asuri N Prasad2
1Department of Pediatrics, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, King Fahad Hospital of the University, Al-Khobar, Saudi Arabia.
Insights
Longer electroencephalography (EEG) monitoring duration increases diagnostic yield in children with seizures. Extended EEG recordings improve seizure diagnosis and resource efficiency.
Area of Science:
- Pediatric Neurology
- Clinical Neurophysiology
Background:
- Epilepsy diagnosis in children often relies on electroencephalography (EEG).
- Determining optimal EEG recording duration is crucial for diagnostic accuracy and resource management.
Purpose of the Study:
- To investigate the association between EEG recording duration and diagnostic yield in pediatric seizure evaluations.
- To compare diagnostic utility between routine EEG and EMU recordings.
Main Methods:
- Retrospective review of clinical and EEG data from 310 children.
- Comparison of mean recording durations between diagnostic and non-diagnostic EEG studies.
- Analysis of epilepsy duration and seizure onset type in relation to diagnostic yield.
Main Results:
- Longer EEG monitoring duration significantly correlated with higher diagnostic yield (44.27 hours vs. 31.05 hours).
- Epilepsy Monitoring Unit (EMU) recordings showed higher diagnostic yield with longer epilepsy duration.
- Diagnostic EEGs were more likely in children with abnormal routine EEG and focal-onset seizures.
Conclusions:
- Extended EEG recording duration enhances diagnostic yield in pediatric seizure evaluations.
- Optimizing EEG duration and considering patient-specific factors can improve diagnostic utility and resource allocation.
Aim:
This exploratory study examines the association of the duration of electroencephalography (EEG) recordings to diagnostic yield in children undergoing evaluation for seizures.
Method:
Clinical and EEG data on three hundred and ten patients (167 males and 143 females) were reviewed retrospectively. 134 (43.2%) children with focal-onset seizures, and 59 (19%) children with generalized-onset seizures. The mean duration of recordings in studies interpreted as "diagnostic" was compared to studies that were interpreted as "non-diagnostic". EMU recordings were also compared to routine EEG studies to identify the relationship between routine EEG and diagnostic studies.
Results:
The principal finding of this study indicates that a longer duration of monitoring is more likely to be associated with a positive diagnostic yield. Mean duration of recording in children with a "non-diagnostic study" was 31.05 hours versus 44.27 hours; p < 0.001 in a "diagnostic study". EMU recordings are likely to be diagnostic with longer epilepsy duration (2.6 years vs 3.7 years; p < 0.01). A diagnostic EEG from a prolonged recording is more likely to be achieved in children with abnormal routine EEG and focal-onset seizures. p < 0.001.
Interpretation:
Tailoring the optimal duration of EEG recordings and factoring in confounding variables will reduce the need for repeated studies, improving diagnostic utility and permitting efficient utilization of resources.
