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. 1985 Nov;60(11):1045–1049. doi: 10.1136/adc.60.11.1045

Recurrence risk after first febrile seizure and effect of short term diazepam prophylaxis.

F U Knudsen
PMCID: PMC1777614  PMID: 3907504

Abstract

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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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Addy D. P. Prophylaxis and febrile convulsions. Arch Dis Child. 1981 Feb;56(2):81–83. doi: 10.1136/adc.56.2.81. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Camfield C. S., Chaplin S., Doyle A. B., Shapiro S. H., Cummings C., Camfield P. R. Side effects of phenobarbital in toddlers; behavioral and cognitive aspects. J Pediatr. 1979 Sep;95(3):361–365. doi: 10.1016/s0022-3476(79)80507-7. [DOI] [PubMed] [Google Scholar]
  3. Frantzen E., Lennox-Buchthal M., Nygaard A. Longitudinal EEG and clinical study of children with febrile convulsions. Electroencephalogr Clin Neurophysiol. 1968 Mar;24(3):197–212. doi: 10.1016/0013-4694(68)90001-1. [DOI] [PubMed] [Google Scholar]
  4. Knudsen F. U. Effective short-term diazepam prophylaxis in febrile convulsions. J Pediatr. 1985 Mar;106(3):487–490. doi: 10.1016/s0022-3476(85)80688-0. [DOI] [PubMed] [Google Scholar]
  5. Knudsen F. U. Plasma-diazepam in infants after rectal administration in solution and by suppository. Acta Paediatr Scand. 1977 Sep;66(5):563–567. doi: 10.1111/j.1651-2227.1977.tb07947.x. [DOI] [PubMed] [Google Scholar]
  6. Knudsen F. U., Vestermark S. Prophylactic diazepam or phenobarbitone in febrile convulsions: a prospective, controlled study. Arch Dis Child. 1978 Aug;53(8):660–663. doi: 10.1136/adc.53.8.660. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Nelson K. B., Ellenberg J. H. Predictors of epilepsy in children who have experienced febrile seizures. N Engl J Med. 1976 Nov 4;295(19):1029–1033. doi: 10.1056/NEJM197611042951901. [DOI] [PubMed] [Google Scholar]
  8. Nelson K. B., Ellenberg J. H. Prognosis in children with febrile seizures. Pediatrics. 1978 May;61(5):720–727. [PubMed] [Google Scholar]
  9. Van den Berg B. J. Studies on convulsive disorders in young children. 3. Recurrence of febrile convulsions. Epilepsia. 1974 Jun;15(2):177–190. doi: 10.1111/j.1528-1157.1974.tb04940.x. [DOI] [PubMed] [Google Scholar]
  10. Wallace S. J. Recurrence of febrile convulsions. Arch Dis Child. 1974 Oct;49(10):763–765. doi: 10.1136/adc.49.10.763. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Wolf S. M., Forsythe A. Behavior disturbance, phenobarbital, and febrile seizures. Pediatrics. 1978 May;61(5):728–731. [PubMed] [Google Scholar]

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