The SUDEP Risk Inventory: Association with postictal generalized EEG suppression
Brian D Moseley1, Christopher M DeGiorgio2
1Department of Neurology and Rehabilitation Medicine, University of Cincinnati, Cincinnati, OH, USA.
Epilepsy Research
|October 2, 2015
Summary
The SUDEP-7 Inventory helps identify epilepsy patients at high risk for sudden unexpected death in epilepsy (SUDEP). A history of more than three generalized tonic-clonic seizures strongly correlates with postictal generalized EEG suppression (PGES), a SUDEP risk biomarker.
Area of Science:
- Neurology
- Epileptology
- Clinical Neuroscience
Background:
- Sudden unexpected death in epilepsy (SUDEP) is a significant concern in patient care.
- Screening tools like the SUDEP-7 Inventory aim to identify at-risk individuals.
- Postictal generalized EEG suppression (PGES) is a recognized biomarker for SUDEP risk.
Purpose of the Study:
- To evaluate the association between SUDEP-7 Inventory risk factors and PGES in pediatric epilepsy patients.
- To determine which SUDEP-7 Inventory factors are most strongly linked to PGES.
Main Methods:
- Reanalysis of data from an epilepsy monitoring unit study involving 37 children.
- Utilized 2x2 contingency table analysis to assess the relationship between inventory responses and PGES.
- Calculated Pearson chi-square and Cramer's V to quantify association strength.
Main Results:
- A history of >3 generalized tonic-clonic seizures (GTCS) in the past year showed the strongest association with PGES (Cramer's V=0.75).
- Having >=1 GTCS in the past year was also strongly associated with PGES (Cramer's V=0.636).
- Seizure frequency (>50/month), intellectual disability, and use of >=3 anti-epileptic drugs (AEDs) showed weaker or non-robust associations with PGES.
Conclusions:
- The number of generalized tonic-clonic seizures is a key indicator for PGES, a SUDEP risk biomarker.
- Certain SUDEP-7 Inventory factors demonstrate stronger predictive value for PGES than others.
- Further research may refine the utility of the SUDEP-7 Inventory in clinical practice for SUDEP risk stratification.
