Atypical rolandic epilepsy.

Area of Science:

• Pediatric Neurology
• Epileptology
• Neurodevelopmental Disorders

Background:

• Typical benign rolandic epilepsy (BRE) is a common childhood epileptic syndrome.
• Mild cognitive and behavioral difficulties are increasingly observed in BRE and are not necessarily atypical.
• Atypical features require electroclinical confirmation.

Purpose of the Study:

• To clarify the distinction between typical and atypical features in benign rolandic epilepsy.
• To identify risk factors for neuropsychological deficits and atypical evolution in BRE.
• To understand the spectrum of atypical BRE manifestations.

Main Methods:

• Review of electroclinical features in childhood epilepsy.
• Analysis of age at onset and spike-wave discharge frequency.
• Correlation of clinical presentation with neuropsychological outcomes.

Main Results:

• Early onset and frequent spikes in BRE are associated with neuropsychological deficits.
• Atypical BRE evolution is characterized by severe impairments and continuous spike-and-waves during slow sleep (CSWSS).
• Syndromes like atypical benign focal epilepsy of childhood (ABFEC), BRE status, Landau-Kleffner syndrome (LKS), and CSWSS may represent a continuum.

Conclusions:

• Mild cognitive/behavioral issues in BRE are common and not always atypical.
• Specific electroclinical features predict a risk for atypical BRE evolution and neuropsychological deficits.
• Atypical BRE presentations may exist on a spectrum, including ABFEC, LKS, and CSWSS.