Summary: Recent epidemiologic data indicate that the vast majority of children with febrile seizures have a normal long‐term outcome. A precise knowledge of the short‐ and long‐term outcome with or without treatment, and short‐ and long‐term side effects is an important prerequisite for assessing the various treatment strategies. We focus on the impact of short‐term or prophylactic treatment on the short‐ and long‐term outcome of various types of febrile seizures. There is universal agreement that daily prophylaxis with antiepileptic agents should never be used routinely in simple febrile seizures, but only in highly selected cases, if at all. Intermittent diazepam (DZP) prophylaxis at times of fever may or may not reduce the recurrence rate, but it does not appear to improve the long‐term outcome as compared with short‐term seizure control. The treatment may be used to reduce the recurrence rate for a small arbitrarily defined group with multiple simple febrile seizures, complex febrile seizures, especially focal, prolonged or both, febrile status, and when parental anxiety is severe. However, there is no evidence that treatment of simple febrile seizures can prevent the rare cases of later epilepsy, and many children with complex febrile seizures have a benign long‐term outcome, even without treatment. Many prefer a “wait and see” policy. An attractive alternative is to treat new febrile seizures with rectal DZP in solution at seizure onset, given by the parents at home to prevent febrile status. Newer, less well documented short‐term strategies include nasal, oral, or rectal administration of other benzodiazepines. Short‐term seizure control of febrile status and careful parental counseling are the two most important targets of treatment.
Results of serologic tests were correlated with hepatitis C virus (HCV) viremia, determined by a cDNA polymerase chain reaction assay to detect HCV RNA, in 340 Danish dialysis patients; of these, 28 (8.2%) were positive for antibodies to HCV (anti-HCV) with second-generation ELI-SAs. HCV RNA was found in sera from 27 of these 28 anti-HCV-positive patients. However, 8 dialysis patients had detectable levels of HCV RNA but were anti-HCV-negative with second-generation ELISAs. Among the 35 HCV-infected dialysis patients 16 were positive, 7 indeterminate, and 12 negative with the second-generation RIBA. More than 60% of patients with evidence of ongoing liver disease had HCV infection. Thus, current commercially available antibody tests did not accurately reflect the HCV status in dialysis patients. A relatively high prevalence (> 10%) of HCV RNA, closely associated with liver disease, was found among dialysis patients in a low-prevalence area of the world.
SUMMARY In a prospective randomised study, 289 children admitted consecutively to hospital with their first febrile seizure were allocated, by date of admission, to short term diazepam prophylaxis (n=152) or to no prophylaxis (n=137) and followed for 18 months. In untreated children, five major risk factors for recurrent febrile convulsions were identified: age 15 months or less at the time of the first febrile seizure, epilepsy in first degree relatives, febrile convulsions in first degree relatives, a first complex febrile seizure, and day nursery care. The 18 month recurrence rate was 80 to 100% if three to five risk factors were present, 50% if two factors were identified, 25% where one factor was found, and 12% if there were no predictors. During prophylaxis the recurrence rate was uniformly low (mean 12%) in all risk groups. In high (three or more factors) and intermediate (two factors) risk children prophylaxis provided effective seizure control and reduced the recurrence rate from 80%, or more, to 12% and 50% to 12%, respectively. In children with one risk factor 50% of all recurrences were prevented (25% to 12%). Prophylaxis was ineffective in very low risk children (12% to 12%).
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