Clinical and Experimental Pediatrics

The Korean Pediatric Society (대한소아청소년과학회)
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Usefulness of video-EEG monitoring in paroxysmal nonepileptic events of children and adolescents

소아와 청소년의 돌발적 비간질 발작의 진단에 있어 비디오-뇌파 모니터링의 유용성

  • Lee, Jee Yeon (Department of Pediatrics, Kwangmyung-Sungae Hospital) ;
  • Lee, Hee Sun (Department of Pediatrics, College of Medicine, Korea University) ;
  • Choi, Wook Sun (Department of Pediatrics, College of Medicine, Korea University) ;
  • Eun, So Hee (Department of Pediatrics, College of Medicine, Korea University) ;
  • Lee, Ki Hyung (Department of Pediatrics, College of Medicine, Korea University) ;
  • Enu, Baik Lin (Department of Pediatrics, College of Medicine, Korea University) ;
  • Lee, Joo Won (Department of Pediatrics, College of Medicine, Korea University)
  • 이지연 (광명성애병원 소아청소년과) ;
  • 이희선 (고려대학교 의과대학 소아과학교실) ;
  • 최욱선 (고려대학교 의과대학 소아과학교실) ;
  • 은소희 (고려대학교 의과대학 소아과학교실) ;
  • 이기형 (고려대학교 의과대학 소아과학교실) ;
  • 은백린 (고려대학교 의과대학 소아과학교실) ;
  • 이주원 (고려대학교 의과대학 소아과학교실)
  • Received : 2007.10.05
  • Accepted : 2007.11.15
  • Published : 2008.01.15
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Abstract

Purpose : In addition to epileptic seizures (ES), a variety of physiologic, organic and psychogenic disorders can manifest as paroxysmal behavioral events. Paroxysmal nonepileptic events (PNEs) are quite encountered in infants, young children, and adolescents. In a substantial proportion of cases, a careful history and examination will elucidate their nature. However, in other cases, it is necessary to differentiate PNEs from ES by video-electroencephalographic (EEG) monitoring. We report our experiences with PNEs in a group of children and adolescents who underwent video-EEG monitoring. Methods : From September, 2004 to June, 2006, one hundred thirty patients were monitored in the Pediatric Epilepsy Monitoring Units of Korea University Guro and Ansan hospitals. Their hospital charts were reviewed and video records of these events were analyzed. We observed all patients after video-EEG monitoring for more than 3 months. Results : Typical spells occurred during monitoring in 33 patients, not associated with a seizure pattern on EEG recordings. Two patients were diagnosed as frontal lobe epilepsy on basis of typical semiology and clinical characteristics, so 31 patients were documented to have PNEs finally. The mean age of patients was $7.2{\pm}5.8\;years$. The male to female ratio was 15 (48.4%) to 16 (51.6%). Among 31 patients, fifteen patients had associated disorders such as epilepsy, developmental delay, cerebral palsy, gastric ulcer, attention deficit hyperactivity disorder or depressive disorder. Somatoform disorder and factitious disorder was frequently seen in children more than 5 years old (P<0.05). Psychogenic disorder was more frequent in female (n=6) than in male (n=2) but there was no statistical significance (P>0.05). Conclusion : Our study suggests that video-EEG monitoring is an important diagnostic tool in the evaluation of paroxysmal behavioral events. With correct diagnosis of the PNEs, several unnecessary treatment could be avoided.

목 적 : 다양한 생리적 현상, 기질적 질환, 정신병리 등이 돌발적 행동 이상(paroxysmal behavioral events)으로 나타날 수 있다. 돌발적 비간질 발작(Paroxysmal nonepileptic events, PNEs)은 영아, 소아 및 청소년에서 매우 흔하게 볼 수 있으며 자세한 병력청취와 진찰을 통해 상당 부분 정확히 감별할 수 있다. 그러나 일부 환자에서는 간질성 발작과의 구분을 위해 비디오-뇌파 모니터링이 필요하게 된다. 본 연구에서는 비디오-뇌파 모니터링을 시행하여 PNEs로 진단한 환자의 임상특징과 PNEs를 진단하는데 있어 비디오-뇌파 모니터링의 유용성을 알아보고자 하였다. 방 법 : 2004년 9월부터 2006년 6월까지 고려대학교 구로병원과 안산병원에 내원한 130명의 환자에서 비디오-뇌파 모니터링을 시행하였고, 이들의 모니터링 결과와 진료 기록을 후향적으로 분석하였다. 결 과 : 비디오-뇌파 모니터링을 시행한 130명의 환자 중 이 발작과 동시에 기록된 뇌파에서 간질 패턴을 보이지 않았고, 전형적인 증후(semiology)와 임상 소견을 근거로 전두엽 간질로 정정된 2명을 제외하고 최종적으로 31명(23.8%)이 PNEs로 진단되었다. 이들의 평균연령은 $7.2{\pm}5.8$세였으며, 남녀 비는 15:16(1:0.94)이었다. 31명 중 15명이 동반 이상으로 간질, 발달지체, 뇌성마비, 위궤양, 주의력결핍-과잉행동장애, 우울증 등이 있었다. 신체형장애와 인위성장애는 5세 미만의 연령군에 비해 5세 이상의 연령군에서 많았으며(P<0.05), 여아(n=6)가 남아(n=2)보다 심인성 질환을 갖는 경우가 더 많았다(P>0.05). 결 론 : 비디오-뇌파 모니터링을 통해 대부분의 환자에서 정확한 진단이 가능하였고 일부 환자에서 기존의 진단과 치료 방향이 수정되었다. 따라서 PNEs를 진단하는데 있어 비디오-뇌파 모니터링과 같은 유용한 검사를 적극적으로 시행함으로써 불필요한 항간질약제의 복용을 막고 보다 적절한 치료를 제공할 수 있을 것으로 생각된다.

Keywords

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