Importance of Genetic Testing in Children With Generalized Epilepsy
Madison Heebner1, Gayatra Mainali2, Sharon Wei3
1Neurology, Penn State College of Medicine, Hershey, USA.
Cureus
|June 10, 2024
Summary
Genetic testing is more effective than brain MRI for diagnosing the causes of idiopathic generalized epilepsy (IGE) in children. This finding aids in identifying the genetic basis of epilepsy for better treatment strategies.
Area of Science:
- Neurology
- Genetics
- Pediatrics
Background:
- Epilepsy is a neurological disorder with diverse causes, including genetic factors.
- Idiopathic generalized epilepsy (IGE) often has a presumed genetic etiology.
- Accurate diagnosis is crucial for effective epilepsy management.
Purpose of the Study:
- To compare the diagnostic utility of genetic testing versus brain MRI in pediatric patients with IGE.
- To identify the most effective diagnostic tool for determining the underlying cause of IGE.
- To enhance etiological diagnosis in pediatric epilepsy.
Main Methods:
- Retrospective chart review of 982 pediatric epilepsy patients.
- Selection of 143 patients meeting criteria for IGE based on ICD10 codes and TriNetX.
- Analysis of genetic testing and brain MRI results from electronic medical records.
Main Results:
- Genetic testing identified potential epilepsy causes in 72.2% (13/18) of IGE patients.
- Brain MRI identified potential causes in 30% (37/123) of IGE patients who also had genetic testing.
- Genetic testing showed a higher diagnostic yield for identifying epilepsy etiologies.
Conclusions:
- Genetic testing appears more valuable than neuroimaging for etiological diagnosis in pediatric IGE.
- This supports the increased use of genetic testing in the diagnostic workup of IGE.
- Further research can refine the role of genetic diagnostics in epilepsy.
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