[Changes in seizure-triggering threshold and after discharge duration in seizure susceptibility].
Epilepsy is analysed on terms of two different conditions, seizure susceptibility and seizure induction. Reports on detailed changes of seizure-triggering threshold and after discharge duration in seizure susceptibility are few. We examined staged changes of seizure-triggering threshold and after discharge duration in seizure susceptibility in a cat amygdaloid kindling model. Ten crossed adult cats were used. We investigated after discharge threshold (ADT), partial seizure threshold (PST) in stage 4 group (P) and generalized seizure threshold (GST) in stage 6 group (C). At the same time, we examined after discharge duration on electroencephalograph (EEG) in each stage. Seizure-triggering threshold decreases significantly step by step. After discharge duration increases significantly step by step. It is concluded that staged decrease of seizure-triggering threshold and increase of seizure's grade and duration was seen in seizure susceptibility.
Nakase
H
H
Department of Neurosurgery, Nara Medical University, Japan.
Tada
T
T
Hashimoto
H
H
Eguchi
T
T
Hirabayashi
H
H
Morimoto
T
T
Sakaki
T
T
D000679:Amygdala / Q000503:physiopathology; D000818:Animals; D002415:Cats; D004195:Disease Models, Animal; D004558:Electric Stimulation; D004569:Electroencephalography; D004827:Epilepsy / Q000503:physiopathology*; D007696:Kindling, Neurologic / Q000502:physiology*