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Original Article

Current Clinical Features of Febrile Seizures in a Pediatric Emergency Room

Sang Won Lee, Young Min Youn, Jihei Cha, Anna Cho
The Ewha Medical Journal 2017;40(4):149-154. Published online: October 31, 2017

Department of Pediatrics, Ewha Womans University College of Medicine, Seoul, Korea.

Corresponding author: Anna Cho. Department of Pediatrics, Ewha Womans University College of Medicine, 1071 Anyangcheon-ro, Yangcheon-gu, Seoul 07985, Korea. Tel: 82-2-2650-2943, Fax: 82-2-2653-3718, acho@ewha.ac.kr
• Received: July 31, 2017   • Revised: September 19, 2017   • Accepted: September 26, 2017

Copyright © 2017. Ewha Womans University School of Medicine

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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  • Objectives
    To expand current knowledge on febrile seizures (FSs), the most common childhood seizure disorder, we investigated clinical features and risk factors of FS in the pediatric emergency department of a center in western Seoul.
  • Methods
    Children with FS that visited the pediatric emergency room of the Ewha Womans University Medical Center from January to December 2014 were included in this study. A retrospective medical record review was conducted for a total of 404 seizure events relative to 265 patients.
  • Results
    A total of 150 boys and 115 girls were enrolled. Children presenting their first FSs were 70.9% (n=188). Average age of FS onset was 28.9 months. Family history was reported in 95 children (36.8%) with higher relevance of paternal inheritance (44.2%, n=42/95). More than half of the seizures (56.4%, n=228/404) occurred on the first day of fever. The most common cause of fever was upper respiratory tract infection (65.8%, n=266/404). Children attending a daycare center had higher incidence of multiple FS compared to those cared for at home. Approximately one third of seizure events (31.7%, n=128/404) were admission cases, mainly because of prolonged fever.
  • Conclusion
    FS is a common neurologic disorder with relatively high admission rate among pediatric emergency department visits. Daycare attendance is associated with current increased incidence of multiple FS. Further study with long-term follow up is necessary to expand knowledge on improving clinical care strategy in FS.
  • Keywords: Seizures, febrile; Recurrence of seizures
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Fig. 1

Age distribution by each febrile seizure (FS) event. The most frequent is from 12 months to less than 24 months.

emj-40-149-g001.jpg
Fig. 2

Distribution of body temperature for each febrile seizure (FS) event. The body temperature is the highest fever during the febrile period before the seizure. There is the greatest number of seizures at 39℃ or more and less than 39.5℃. Other than that, the higher the body temperature, the more the seizure is, but not related the recurrence of seizure.

emj-40-149-g002.jpg
Fig. 3

Seasonal variations of seizure events during a year. January and February, when there are the epidemic of influenza virus, are many febrile seizure (FS) events. And the period from April to June, when is season of enteroviruses, there is many FS events, also.

emj-40-149-g003.jpg
Table 1

Risk factors for recurrence of febrile seizure

Values are presented as number (%).

FS, febrile seizure; F/Hx, family history; CRP, C-reactive protein.

*Analysis performed by chi-square test.

emj-40-149-i001.jpg

Figure & Data

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      Current Clinical Features of Febrile Seizures in a Pediatric Emergency Room
      Ewha Med J. 2017;40(4):149-154.   Published online October 31, 2017
      DOI: https://doi.org/10.12771/emj.2017.40.4.149
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      Current Clinical Features of Febrile Seizures in a Pediatric Emergency Room
      Ewha Med J. 2017;40(4):149-154.   Published online October 31, 2017
      DOI: https://doi.org/10.12771/emj.2017.40.4.149
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      Figure

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      Current Clinical Features of Febrile Seizures in a Pediatric Emergency Room
      Image Image Image
      Fig. 1 Age distribution by each febrile seizure (FS) event. The most frequent is from 12 months to less than 24 months.
      Fig. 2 Distribution of body temperature for each febrile seizure (FS) event. The body temperature is the highest fever during the febrile period before the seizure. There is the greatest number of seizures at 39℃ or more and less than 39.5℃. Other than that, the higher the body temperature, the more the seizure is, but not related the recurrence of seizure.
      Fig. 3 Seasonal variations of seizure events during a year. January and February, when there are the epidemic of influenza virus, are many febrile seizure (FS) events. And the period from April to June, when is season of enteroviruses, there is many FS events, also.

      Fig. 1

      Fig. 2

      Fig. 3

      Current Clinical Features of Febrile Seizures in a Pediatric Emergency Room

      Risk factors for recurrence of febrile seizure

      Values are presented as number (%).

      FS, febrile seizure; F/Hx, family history; CRP, C-reactive protein.

      *Analysis performed by chi-square test.
      Table 1 Risk factors for recurrence of febrile seizure

      Values are presented as number (%).

      FS, febrile seizure; F/Hx, family history; CRP, C-reactive protein.

      *Analysis performed by chi-square test.

      Table 1

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