Korean Journal of Clinical Laboratory Science (대한임상검사과학회지)

Korean Society for Clinical Laboratory Science (대한임상검사과학회)
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A Study on the Relationship between Seizure Recurrence and EEG for Epilepsy

뇌전증 발작재발과 뇌파검사의 관계 연구

  • Chae, Kyoung-Min (Department of Neurology, Seoul National University Hospital) ;
  • Sung, Hyun-Ho (Department of Clinical Laboratory Science, Dongnam Health University) ;
  • Kim, Dae-Sik (Department of Clinical Laboratory Science, Dongnam Health University)
  • 채경민 (서울대학교병원 신경과) ;
  • 성현호 (동남보건대학교 임상병리과) ;
  • 김대식 (동남보건대학교 임상병리과)
  • Received : 2016.08.16
  • Accepted : 2016.10.31
  • Published : 2016.12.31
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Abstract

Epilepsy, characterized by enduring the predisposition to generate epileptic seizures, was conceptually defined in 2005 as a disorder of the brain. According to the international league against epilepsy in 2014 that there is a high risk of recurrence within 10 years. The existence of interictal epileptiform discharges (IEDs) at the Electroencephalography (EEG) is an important risk factor for a possible recurrence of seizures, disproving that the seizures may increase. The purpose of this study was to analyze the correlation between recurrent seizures and epilepsy EEG findings in patients with IEDs, which was carried out to serve as the basis for the EEG to predict the prognosis of patients with epilepsy. This study included 432 adults older than 20 years of age who care for patients with epilepsy at Seoul National University Hospital, between June 2007 and December 2010. The results showed no difference between men and women in the EEG epilepsy disease, but there was a difference between various age groups. Correlation analysis showed a negative correlation between recurrence of seizures and age; it showed a positive correlation between recurrence and IEDs. In addition, age was associated with a predictive power of 10.9% and IEDs showed a predictive power of 15% on recurrent seizures. Therefore, EEG is considered as a very important test in epilepsy diagnosis. Therefore, further studies are necessary on the relationship between seizure recurrence and EEG.

뇌전증의 개념은 간질발작이 지속적으로 발생하는 뇌변병으로 2005년에 정의 되었다. 2014년 국제항뇌전증연맹에서는 새로운 정의를 내렸으며, 10년 이내 재발 위험이 높다고 하였다. 뇌전증 발작재발의 중요한 위험인자로서 뇌파에서 IEDs의 존재는 발작 증상이 높게 나타날 수 있다는 것을 반영한다. 본 연구는 뇌전증 환자에서 뇌파검사 소견과 IEDs에 따른 발작재발의 상관관계를 분석하여 뇌전증 환자의 예후를 예측하기 위한 뇌파검사의 기초자료로 활용하고자 실시하였다. 연구결과, 뇌전증 질환의 남녀 차이는 없었으며, 연령의 분포 차이는 있었다. 상관관계 분석결과 연령에 따라 발작재발은 음의 상관관계였으며, IEDs에 따라 발작재발은 양의 상관관계를 나타내었다. 또한 통계적으로 연령은 발작재발에 10.9%의 영향을 나타내었고, IEDs는 발작재발에 15%의 설명력을 나타내었다. 따라서 뇌파검사는 임상에서 사용하는 뇌전증 진단에 매우 중요한 검사로 판단되며, 향후 보다 의미 있는 임상 자료가 되기 위하여 발병률에 따른 뇌파결과와 치료 중 뇌파결과와 발작재발 그리고 치료 후 발작재발 등을 지속적으로 연구해야 할 것으로 생각된다.

Keywords

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