Abstract:
:We studied 36 drop seizures in 5 patients with myoclonic astatic epilepsy of early childhood (MAEE) with simultaneous split-screen video recording and polygraph. Sixteen were falling attacks and 20 were either less severe attacks exhibiting only deep head nodding or seizures equivalent to drop attacks in terms of ictal pattern but recorded in the supine position. All seizures except those that occurred in patients in the supine position showed sudden momentary head dropping or collapse of the whole body downward. Recovery to the preictal position was observed in 0.3-1 s. As a result of carefully repeated observations, the 36 seizures were classified as myoclonic flexor type in 9, myoclonic atonic type in 2, and atonic type, with and without transient preceding symptoms in the remaining 25. The MF seizure was characterized by sudden forward flexion of the head and trunk as well as both arms, which caused the patient to fall. In the myoclonic atonic seizure, patients showed brief myoclonic flexor spasms, immediately followed by atonic falling. The AT seizure showed abrupt atonic falling, with and without transient preceding facial expression change and/or twitching of extremities. The ictal EEGs of all 36 seizures exhibited generalized bilaterally synchronous single or multiple spike(s) and wave discharges. Atonic drop attacks appear to be a common cause of ictal epileptic falling in MAEE.
journal_name
Epilepsiajournal_title
Epilepsiaauthors
Oguni H,Fukuyama Y,Imaizumi Y,Uehara Tdoi
10.1111/j.1528-1157.1992.tb02185.xsubject
Has Abstractpub_date
1992-09-01 00:00:00pages
805-13issue
5eissn
0013-9580issn
1528-1167journal_volume
33pub_type
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