Unprovoked seizures in children with complex febrile convulsion; short-term outcome

복합 열성 경련 후 간질 발생 환아의 임상적 고찰; 단기 추적 관찰 결과

  • Choi, Ji Yeon (Department of Pediatrics, College of Medicine, Konyang University) ;
  • Cheon, Eun Jung (Department of Pediatrics, College of Medicine, Konyang University) ;
  • Lee, Young Hyuk (Department of Pediatrics, College of Medicine, Konyang University)
  • 최지연 (건양대학교 의과대학 소아과학교실) ;
  • 천은정 (건양대학교 의과대학 소아과학교실) ;
  • 이영혁 (건양대학교 의과대학 소아과학교실)
  • Received : 2007.07.23
  • Accepted : 2007.08.01
  • Published : 2007.08.15

Abstract

Purpose : Febrile convulsions (FC) were considered to be a benign seizure syndrome that is distinct from epilepsy. But it is thought that children with complex features i.e., partial or prolonged seizures or multiple episodes of FC would bear a higher risk of developing unprovoked seizures. The aim of this study is to look into the relative significance of each criteria that define complex febrile convulsions (CFC) as a predictor of subsequent epilepsy. Methods : All children were retrospectively identified for a febrile seizure through pediatric departments of the Konyang University Hospital. Information was collected from medical records and interviews with parents. Patients with abnormal neurological examinations at presentation were excluded. Results : This study was performed from March 2000 to December 2003. Sixty-three out of 314 children (20.0%) with febrile convulsion fulfilled the criteria for CFC and forty-four children of them have been followed for 12 months or more. Ten of these (23.2%) had unprovoked seizures for 14-62 months (median $34.2{\pm}11.6$ months). The patients with partial FC showed a trend toward a higher risk (57.1%) of developing epilepsy than the patients with multiple or prolonged febrile convulsions (26.7%, 24.1% respectively). Conclusion : We found that the partial feature of febrile convulsion is associated with subsequent epilepsy.

목 적 : 열성 경련은 간질과는 구별되는 양성 질환이지만 복합 열성 경련에서는 간질의 발생이 더 많은 것으로 알려져 있다. 복합 열성 경련의 정의에 해당하는 환자에서 간질 이행의 발생률이 증가하는지 알아보기 위하여 본 연구를 시행하였다. 방 법 : 열성 경련으로 건양대학교 병원 소아과를 방문하였던 환자들을 대상으로 후향적 연구를 시행하였으며 환자의 정보는 의무 기록 분석과 부모와의 면담을 통하여 조사하였다. 결 과 : 2000년 3월부터 2003년 12월까지 열성 경련으로 본원을 내원한 환아는 314명이었으며, 이 중 복합 열성 경련으로 진단받은 환아는 63명(20.0%)으로 12개월 이상 추적 관찰은 44명(44/63, 70.0%)에서 가능했다. 평균 $34.2{\pm}11.6$개월의 추적 관찰 기간동안 10명에서 간질이 발생하였고, 부분 발작(57.1%)을 한 경우가 2회 이상(26.7%) 또는 15분 이상의 경련(24.1%)과 비교하였을때 더 높은 간질 발생률을 보였다. 결 론 : 복합 열성 경련이 있는 환자에서 첫 열성 경련의 양상이 부분 발작의 형태로 나타난 경우에 이후 간질 발생 빈도가 높음을 알 수 있었다.

Keywords

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