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A Long‐Term Prognosis of Febrile Convulsion and Status Convulsivus: In Relation to the Potential Risk of Subsequent Epilepsy

During the period from June, 1967, to March, 1974, 307 patients visited our clinic with a chief complaint of FC, excluding those cases with a previous history of afebrile convulsions (AC) in addition to FC. Of these patients, 260 were re-examined to confirm their present condition as of the end of March, 1981, and they constituted the subjects for this study. FC was defined in our study as a seizure associated with a temperature of 38OC or higher and the onset age is under 8 years excluding the CNS infection and metabolic disorder. The important difference between the subjects of the studies A and B is: the subjects in study A involved many poor prognosis cases developing AC and those in study B were apt to be dropped out as poor prognosis cases.