• Journal of Korean Neurosurgical Society
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• 제41권6호
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• pp.387-390
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• 2007

Objective : To determine the presentation, incidence, and risk factors of seizures in patients treated for brain tumors. Methods : One hundred patients who consecutively underwent a craniotomy for the treatment of supratentorial brain tumors were assessed. The pathologies of the patients enrolled in the study included glioma [n=56], meningioma [n=31], metastatic brain tumor [n=7], primary central nervous system lymphoma [n=4], and central neurocytoma [n=2]. Anti-epileptic drugs [AEDs] were administered to all patients for up to six months after the surgery. Pre-defined variables for outcome analysis included tumor grade and location, extent of tumor resection, number of seizures, age at tumor diagnosis, adjuvant therapy, medication and radiological abnormalities. Results : Thirty patients [30%] presented at least a single episode of seizure at the time of admission. Five of these patients [16.7%] developed the seizure during the follow-up period. Newly developed seizure was noticed in six out of seventy patients [8.6%] without prior seizure. Histopathology was malignant gliomas in 10 and supratentorial meningioma in one. Early seizure developed only in two patients. Conclusion : Compared with patients without seizure, patients with seizure at the time of admission showed younger age [p=0.003], a higher portion of low-grade glioma [p=0.001], tumor location in the frontal and temporal lobes [p=0.003] and cortical involvement [p=0.017]. Our study suggestes that tumor progression is considered a significant risk factor for seizure development in glioma patients.

• BMB Reports
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• 제52권5호
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• pp.304-311
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• 2019

The cytoplasmic FMR1-interacting protein family (CYFIP1 and CYFIP2) are evolutionarily conserved proteins originally identified as binding partners of the fragile X mental retardation protein (FMRP), a messenger RNA (mRNA)-binding protein whose loss causes the fragile X syndrome. Moreover, CYFIP is a key component of the heteropentameric WAVE regulatory complex (WRC), a critical regulator of neuronal actin dynamics. Therefore, CYFIP may play key roles in regulating both mRNA translation and actin polymerization, which are critically involved in proper neuronal development and function. Nevertheless, compared to CYFIP1, neuronal function and dysfunction of CYFIP2 remain largely unknown, possibly due to the relatively less well established association between CYFIP2 and brain disorders. Despite high amino acid sequence homology between CYFIP1 and CYFIP2, several in vitro and animal model studies have suggested that CYFIP2 has some unique neuronal functions distinct from those of CYFIP1. Furthermore, recent whole-exome sequencing studies identified de novo hot spot variants of CYFIP2 in patients with early infantile epileptic encephalopathy (EIEE), clearly implicating CYFIP2 dysfunction in neurological disorders. In this review, we highlight these recent investigations into the neuronal function and dysfunction of CYFIP2, and also discuss several key questions remaining about this intriguing neuronal protein.

• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제10권12호
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• pp.587-594
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• 2021

뇌파(electroencephalogram, EEG)를 이용한 진단이 확대되면서 EEG 신호를 자동으로 분류하기 위한 다양한 연구가 활발히 이루어지고 있다. 본 논문은 일반인과 뇌전증 환자에게서 추출한 EEG 신호를 효과적으로 식별할 수 있는 CNN 모델을 제안한다. CNN의 학습에 필요한 데이터를 확장하기 위하여 EEG 신호를 낮은 차원의 신호로 분할하고, 이것을 다시 여러 개의 세그먼트로 중첩 분할하여 CNN 학습에 이용한다. 이와 더불어 CNN의 성능을 개선하기 위하여 CNN 앙상블 전략을 제안한다. 공개된 Bonn 데이터세트로 실험을 수행한 결과 뇌전증 발작을 99.0% 이상의 정확도로 검출하였고, 앙상블 방식에 의해 3-클래스와 5-클래스의 EEG 분류에서 정확도가 향상되었다.

• 대한의용생체공학회:의공학회지
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• 제36권4호
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• pp.95-102
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• 2015

Epilepsy is a chronic neurological disease which produces repeated seizures. Over 30% of epileptic patients cannot be treated with anti-epileptic drugs, and surgical resection may cause loss of brain functions. Seizure suppression by electrical stimulation is currently being investigated as a new treatment method as clinical evidence has shown that electrical stimulation to brain could suppress seizure activity. In this paper, design of a real-time closed-loop neurostimulation system for epileptic seizure suppression is presented. The system records neural signals, detects seizures and delivers electrical stimulation. The system consists of a 6-channel electrode, front-end amplifiers, a data acquisition board by National Instruments, and a neurostimulator and Generic Osorio-Frei algorithm was applied for seizure detection. The algorithm was verified through simulation using electroencephalogram data, and the operation of whole system was verified through simulation and in- vivo test.

• 대한중풍순환신경학회지
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• 제21권1호
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• pp.33-38
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• 2020

■ Objectives This case report is reported to show the effect of Ukgansan and Hwangnyeonhaedok-tang on a patient who complaining myoclonic seizure due to psychogenic non epileptic seizure, occurred after traumatic stress event. ■ Methods A female patients with myolconic seizure was treated with Ukgansan and Hwangnyeonhaedok-tang during 5 days. Then we assessed dyskinesia severity by AIMS(Abnormal Involuntary Movement Scale) every two days til discharge. ■ Results Seizure decreased two days after hospitalization, then disappeared third day. There was no recurrence till discharge. When she revisited outpatients clinic, there was no symptom. ■ Conclusion This case showed the effect of Ukgansan and Hwangnyeonhaedok-tang on psychogenic epileptic seizure.

• 대한한방소아과학회지
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• 제18권1호
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• pp.131-138
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• 2004

Background: Epilepsy is a disorder of the central nervous system characterized by loss of consciousness and convulsions. Epilepsy, a typical chronic disease, may cause high level of psychosocial difficulties for all family members, including stigmatization, stress, martial problems, poor self esteem and restriction of social activities. Objective & Method: To demonstrate the therapeutic effect of herbal medicine (Kamigoakhyangjeonggisan) on patients with epilepsy. We treated two cases of epileptic children, who had frequent seizures. Results: Two children improved in the frequency of the seizure, the combined disabilities. Conclusion: We report that we had good effects of herbal medicine treatment on two cases of epileptic children.

• Journal of Korean Neurosurgical Society
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• 제62권3호
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• pp.336-343
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• 2019

Epilepsy surgery revealed dramatically improved seizure outcomes over medical therapy in drug-resistant epilepsy patients. Children with epilepsy, however, have multiple epileptic focuses which require multilobar resection for better seizure outcome. Multilobar resection has not only the several severe surgical complications, such as hydrocephalus and shunt-related craniosynostosis, due to intracranial volume reduction. Isolation method (disconnection surgery) was progressively studied over epileptic focus removal (resective surgery) for seizure control. This concept was first introduced for functional hemispherotomy, and its primary principle is to preserve the vital vascularized brain that is functionally disconnected from the contralateral healthy brain. Currently in most epilepsy centers, the predominant disconnection surgical methods, including functional hemispherotomy, are continually being refined and are showing excellent results. They allow the functional isolation of the hemisphere or multi-lobe, affected by severe epilepsy. This review describes recent findings concerning the indication, surgical technique, seizure outcome and complications in several disconnection surgeries including the functional hemispherotomy for refractory pediatric epilepsy.

• Genomics & Informatics
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• 제11권4호
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• pp.254-262
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• 2013

The multidrug resistance protein 2 (MRP2, ABCC2) gene may determine individual susceptibility to adverse drug reactions (ADRs) in the central nervous system (CNS) by limiting brain access of antiepileptic drugs, especially valproic acid (VPA). Our objective was to investigate the effect of ABCC2 polymorphisms on ADRs caused by VPA in Korean epileptic patients. We examined the association of ABCC2 single-nucleotide polymorphisms and haplotype frequencies with VPA related to adverse reactions. In addition, the association of the polymorphisms with the risk of VPA related to adverse reactions was estimated by logistic regression analysis. A total of 41 (24.4%) patients had shown VPA-related adverse reactions in CNS, and the most frequent symptom was tremor (78.0%). The patients with CNS ADRs were more likely to have the G allele (79.3% vs. 62.7%, p=0.0057) and the GG genotype (61.0% vs. 39.7%, p=0.019) at the g.-1774delG locus. The frequency of the haplotype containing g.-1774Gdel was significantly lower in the patients with CNS ADRs than without CNS ADRs (15.8% vs. 32.3%, p=0.0039). Lastly, in the multivariate logistic regression analysis, the presence of the GG genotype at the g.-1774delG locus was identified as a stronger risk factor for VPA related to ADRs (odds ratio, 8.53; 95% confidence interval, 1.04 to 70.17). We demonstrated that ABCC2 polymorphisms may influence VPA-related ADRs. The results above suggest the possible usefulness of ABCC2 gene polymorphisms as a marker for predicting response to VPA-related ADRs.

• 대한약침학회지
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• 제26권1호
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• pp.38-43
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• 2023

Objectives: Psychiatric symptoms in epilepsy are very common, and the most common symptoms are depression, insomnia, and anxiety. These symptoms not only lower the quality of life of epilepsy patients, but also elevate the risk of epileptic seizures. There are no specific criteria for the available antiepileptic drugs to ameliorate these symptoms in patients with epilepsy, and there is a lack of evidence to support the efficacy and safety of existing drugs. The Shugan Jieyu capsule (SJC) is a traditional herbal medicine composed of Acanthopanax senticosus and Hypericum perforatum and is reported to be effective in relieving psychiatric symptoms. The purpose of this study was to assess the efficacy of SJC as a treatment for psychiatric symptoms in epilepsy patients. Methods: Electronic databases will be investigated for publications in English, Korean, Japanese, and Chinese. The participants of the study are epilepsy patients with psychiatric symptoms diagnosed using any validated criteria. All types of controls will be compared-placebo, conventional treatments, and no treatment-to groups treated with SJC or modified SJC. We will measure the degree of improvement in psychiatric symptoms and check epileptic symptoms, such as the frequency of seizures. The study selection and data extraction will be performed by two independent reviewers, who will also assess methodological quality using the risk-of-bias tool by Cochrane. We will use Review Manager software (RevMan) to carry out all statistical analyses. Results: This systematic review and meta-analysis will be performed in accordance with the PRISMA-P statement. Conclusion: This systematic review is the first study to assess the efficacy and safety of SJC for the treatment of psychiatric symptoms in epilepsy. We expect that this study will provide clinically applicable evidence for patients with epilepsy when selecting drug treatments.

• Clinical and Experimental Pediatrics
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• 제49권11호
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• pp.1180-1185
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• 2006

목 적 : TPM를 복용중인 간질 환아들에서 소한증 관련 증상 발생률을 확인함과 더불어, 뉴로체크($Neurocheck^{TM}$) 발한 검사를 시행하여 비침습적으로 발한 감소 관련 증상을 비교 확인하고자 하였다. 방 법 : 2004년 10월부터 2005년 7월까지 전북대학병원 소아과에 내원한 환자 중 간질로 진단받고 TPM를 투여 시작한 환자 55명중 자료가 불충분한 9명을 제외하고 46명을 대상으로 하였다. 대상 환자는 약물 투여 전과 목표 용량에 도달 한 직후 가능한 빠른 시간에 뉴로체크를 이용한 발한 기능 검사를 시행하였고, 2005년 여름 소한증과 관련된 증상 발현 유무를 면담을 통해 확인하였다. 결 과 : 저자들은 전북대학교병원 소아과에서 부분발작으로 진단 받고 TPM를 복용중인 46명의 환아들을 대상으로 비침습적인 검사인 뉴로체크를 이용하여 TPM 유발성 발한 감소 증상을 예측하고자 하였으며 더불어 TPM으로 인한 발한 감소 증상의 유병률을 알아보고자 하였으며 다음과 같은 결과를 얻었다. 1) 설문조사상 여름 기간 동안 TPM 사용 중 소한증 관련 증상 발생률은 37.0% 였으며 완전 무한증은 없었고 경증의 비율은 26.1%, 중증의 비율은 10.9% 였다. 2) 뉴로체크 발한 검사상 발한 지연은 34.8% 였으며 변화 없는 경우는 54.3%, 발한이 증가한 경우는 10.9% 였다. 3) 설문조사 결과 발한 감소 관련 증상을 보인 환아들에서 뉴로체크 검사상 발한 감소를 보이는 경우는 46명 중 13명으로 76.5% 였으며 이중 설문조사 상 경증인 경우는 75.0%, 중증인 경우는 80%의 양성률을 보였다. 4) 뉴로체크 발한 검사상 TPM 사용전보다 3분 이상 지연된 경우 3분 이하에서보다 상대적으로 중증의 비율이 높았다. 결 론 : 소아연령에서 비침습적인 뉴로체크 발한 검사 방법으로 손쉽게 발한감소를 측정할 수 있었다. 뉴로체크 검사를 이용하여 TPM 유발성 발한 감소 관련 증상을 예측 할 수 있었으며, 특히 TPM 사용 전보다 3분 이상 지연된 경우 소한증 증상 발현이 현저하여 열감 불내성, 기면 혹은 열사병에 대한 주의가 필요할 것으로 생각된다.