Myoclonic absence true Myoclonic absences human_phenotype HP:0011150 2011-10-18T02:04:35Z Rhythmic myoclonic jerks of the shoulders and arms with tonic abduction that results in progressive lifting of the arms during the seizure. The myoclonic jerks are typically bilateral but may be unilateral or asymmetric. Perioral myoclonias and rhythmic jerks of the head and legs may occur. Seizures last 10-60 seconds and typically occur daily. Level of awareness varies from complete loss of awareness to retained awareness. peter UMLS:C4023512 https://www.epilepsydiagnosis.org/seizure/awsf-myoclonic-absence-overview.html myoclonic absence seizure generalized non-motor onset seizure