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Perioral myoclonia with absences is a rare epilepsy syndrome characterized by absence seizures with perioral myoclonia as the main seizure type, accompanied by generalized tonic-clonic seizures, appearing before or together with absences. Consciousness is usually impaired, although to variable degree. Commonly observed absence status epilepticus, poor response to antiepileptic drugs and persistence of seizures into adulthood, in the presence of normal neurological status and intelligence, are additional clinical features of this syndrome.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for perioral myoclonia with absences.
4 publications have been identified in PubMed for perioral myoclonia with absences. Kisho has analyzed 3 by research type. Research spans Review / Meta-Analysis (33%), Case Report / Case Series (33%), and Clinical Trial Publication (33%).
Yang H (2025). [PMID: 40359772](https://pubmed.ncbi.nlm.nih.gov/40359772/). *Seizure*. [Clinical Trial Publication]
Beniczky S (2025). [PMID: 41081650](https://pubmed.ncbi.nlm.nih.gov/41081650/). *Epileptic disorders : international epilepsy journal with videotape*. [Review / Meta-Analysis]
Muccioli L (2025). [PMID: 41003650](https://pubmed.ncbi.nlm.nih.gov/41003650/). *Epilepsia open*. [Case Report / Case Series]
Data assembled from 3 of 12 sources · Last updated Sep 19, 2026, 10:47 PM UTC
European rare disease database
Genetic and Rare Diseases Info Center