Sốt cao co giật là phổ biến, nhất là đơn giản, và thường có diễn tiến lành tính, họ đang có, tuy nhiên, một chẩn đoán loại trừ. Để được coi là một cơn động kinh do sốt đơn giản, co giật là một sự kiện phải đáp ứng tiêu chí nhất định: (1) bệnh nhân tuổi từ 3 tháng đến 5 năm | CLINICAL CASES 383 APPROACH TO SEIZURES WITH FEVER Febrile seizures are common most are simple and usually have a benign course they are however a diagnosis of exclusion. In order to be considered a simple febrile seizure a convulsive event must meet certain criteria 1 patient age between 3 months and 5 years 2 a generalized seizure without focal elements 3 a seizure lasting less than 15 minutes 4 associated with a fever C 101 F that is not caused by a CNS infection and 5 occurs only once in a 24-hour period. If the seizure is focal in nature lasts longer than 15 minutes or recurs within 24 hours then it is considered to be a complex febrile seizure. Febrile seizures either simple or complex are a type of acute symptomatic or provoked seizure just like acute traumatic seizures or alcohol withdrawal convulsions. In fact febrile seizures are the most common type of provoked seizure-occurring in up to 5 percent of all children in the United States. It is important to understand the difference between epilepsy and an acute symptomatic provoked seizure. The former indicates that a patient has had two or more unprovoked seizures separated by at least 24 hours. The later refers to convulsions that occur immediately in response to a precipitating event such as fever ischemia anoxia or trauma . Febrile seizures most commonly occur within the first 24 hours of an illness with fever and it is not at all unusual for them to be the first manifestation of illness. The underlying illness is more commonly viral than bacterial and may be due to a large number of different causative agents. However certain viral agents particularly human herpesvirus 6 do seem to be disproportionately associated with febrile convulsions for unknown reasons. There are also familial genetic syndromes that can include febrile seizures as part of the phenotype particularly the generalized epilepsy with febrile seizures plus GEFS syndromes. In this heterogeneous disorder patients in a given family .
