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Cryptogenic late-onset epileptic spasms

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Disease definition

Cryptogenic late-onset epileptic spasms is a rare epilepsy syndrome characterized by late-onset (after 1 year old) epileptic spasms that ocurr in clusters, associated with tonic seizures, atypical absences and cognitive deterioration. Language difficulties and behavior problems are frequently present. EEG is characterized by a temporal, or temporofrontal, slow wave or spike focus combined with synchronous spike-waves and no hypsarrhythmia or background activity.

ORPHA:163708

Classification level: Disorder

Synonym(s):
  • Late-onset infantile spasms

Prevalence: Unknown

Inheritance: -

Age of onset: Childhood

ICD-10: G40.4

ICD-11: 8A61.2Y

UMLS: C4755310

A summary on this disease is available in Français, Español, Italiano, Nederlands, Polski
Detailed information

Logo ERN: produced/endorsed by ERN(s) Logo FSMR: produced/endorsed by FSMR(s)

General public
Article for general public
Español (2023) - Asociación Nacional de Personas con Epilepsia-ANPE
Guidelines
Emergency guidelines
Français (2020.pdf) - Orphanet Urgences
Additional information

Further information on this disease

Patient-centred resources for this disease

Research activities on this disease

Newborn screening

The documents contained in this website are presented for information purposes only. The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment.