Atypical absences are epileptic seizures that occur in children with severe learning and neurologic disabilities of epileptic encephalopathies, mainly, Lennox-Gastaut syndrome. They are distinct from typical absences in that onset and termination is slow, impairment of consciousness is mild, and they are often associated with significant tone disturbances. The ictal EEG shows diffuse spike waves that are slower than the typical absence, usually between 1.5 and 2.5 Hz. Patients with atypical absences also suffer from concurrent tonic, atonic, and other types of epileptic seizures according to the primary epileptic syndrome. Management is usually difficult, and prognosis is that of the underlying disorder.
To view the complete article, click here and log in.
First seizure (single or multiple events within 24 hours) represents a frequent presentation of new-onset seizures, accounting for up to a third of such presentations. However, the majority of these patients will not go on to have recurrent seizures (ie, epilepsy). Although treatment reduces recurrence risk, it does not alter long-term prognosis; therefore, reserving treatment until occurrence of the second seizure is appropriate in most cases, especially in children and adolescents. In this clinical summary, Dr. Shlomo Shinnar and Dr. Susan Duberstein of Albert Einstein College of Medicine address the workup and approach to management for a patient presenting with a first seizure.
To view the complete clinical summary, click here.
MedLink Neurology authors are always at work to bring you broad and up-to-date coverage of neurology topics. We are pleased to highlight clinical summaries that have been recently added or updated and to introduce the authors who write these authoritative articles. We hope you enjoy these overviews and appreciate the contributions of our more than 450 authors who keep MedLink Neurology the premier information resource for neurologists.