Outcomes of epileptic spasms in patients aged less than 3 years: single-center United States experience

Area of Science:

• Pediatric Neurology
• Epileptology

Background:

• Infantile epileptic spasms are a severe epilepsy syndrome in young children.
• Understanding treatment efficacy and long-term outcomes is crucial for managing this condition.

Purpose of the Study:

• To evaluate the short-term and long-term outcomes of epileptic spasms in children under 3 years old.
• To identify predictors of treatment response and neurodevelopmental outcomes.

Main Methods:

• Retrospective review of 173 children diagnosed with epileptic spasms between 2004 and 2010.
• Analysis of treatment modalities including adrenocorticotropic hormone, vigabatrin, and phenobarbital.
• Assessment of short-term seizure control and long-term outcomes including seizures and developmental delay.

Main Results:

• Adrenocorticotropic hormone and vigabatrin demonstrated superior short-term epileptic spasm control compared to other agents.
• At follow-up, 54% of children had ongoing seizures and 83% had developmental delay.
• Known etiology, bilateral/diffuse brain lesions, and initial presentation with hypotonia or developmental delay predicted poor outcomes.

Conclusions:

• While certain treatments offer short-term benefits for infantile epileptic spasms, long-term neurodevelopmental outcomes remain a significant concern.
• Early identification of prognostic factors like etiology and initial symptoms is vital for predicting patient trajectories.
• The presence of developmental delay or hypotonia at onset may indicate a poorer prognosis regardless of treatment choice.