• Title/Summary/Keyword: Brain, epilepsy

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The Activity of Dopamine $\beta$-Hydroxylase of Central Nervous System in Genetically Epilepsy Prone Rats

  • Park, Youn-Joo;Chung, Hye-Joo;Lee, Kwang-Ho;Ko, Kwang-Ho
    • Archives of Pharmacal Research
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    • v.14 no.2
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    • pp.172-175
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    • 1991
  • Abnormality in the central noradrenergic system may be related to the seizure prone state in the genetically epilepsy prone rats (GEPR). The present work deals with the characterization of the deficit in noradrenergic system if susceptitibility and intensity of seizure are dependent on central noradrenregic activities by comparing the activities of dopamine $\beta$-hydroxylase (DBH) which hydroxylates dopamine into noradrenaline. DBH activities were measured in 5 areas of brain of normal rats, native GEPR and severe GEPR. The results suggest that lower DBH activities in the midbrain of GEPRs may positively be coupled to the susceptibility to seizure, whereas the same characteristics of the native or severe GEPR are not neccessarily in parallel with the intensity of seizure.

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Prediction and Classification System for Temporal lobe Epilepsy (측두엽 간질 예측과 분류시스템)

  • Kim, Min-Soo;Seo, Hee-Don
    • Journal of Sensor Science and Technology
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    • v.13 no.3
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    • pp.199-206
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    • 2004
  • Epileptic seizures result from a temporary electrical disturbance of the brain. In this paper, a method of discriminating EEG for diagnoses of temporal lobe epilepsy is proposed. The proposed method for classification of epilepsy and sleep EEG is based on the wavelet transform and the fuzzy c-means. The magnitude and mean of wavelet coefficients for each EEG band are applied to the cluster of the FCM classifier. The proposed system show a little more accurate diagnosis for EEG by analysis of frequency for Wavelet and the success rate of 95% classification using FCM. From the simulation results by the implemented system, we demonstrated this research can be reduce doctor's labors and realize quantitative diagnosis of EEG.

Case Study of Chun-Kwang Patient Showed Psychomotor Epilepsy Symptoms (정신 운동 간질 증상을 보인 전광(癲狂) 환자의 증례보고)

  • Kang, Hee-Chul;Jung, Myong-Suk;Lee, Seung-Gi
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.21 no.3
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    • pp.785-788
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    • 2007
  • Chun-Kwang(癲狂) is a oriental medical term which has psychosis or similar symptoms. It is similar to schizophrenia or bipolar disorder in western medicine. Recently we have treated a patient with Chun-Kwang showed psychomotor epilepsy symptoms. He usually has gotten vertigo in the morning, and then suffered from hallucinations. There was no evidence of organic abnormality in the brain. We treated the patient with oriental medical therapy. The result of treatment was effective partially.

A Case of Ring Chromosome 20 with Mental Retardation and Epilepsy (정신 지체와 간질을 동반한 20 환(Ring) 염색체 증후군 1례)

  • Jung, Yeon Kyung;Lee, Gyeong Hoon
    • Clinical and Experimental Pediatrics
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    • v.48 no.1
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    • pp.108-111
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    • 2005
  • Ring chromosome 20 mosaicism [r(20)] is a rare chromosomal anomaly associated with minor dysmorphism, mental retardation, autistic behavior, and intractable epilepsy. The proposed mechanism of ring formation is breakage of both short and long arms of a chromosome with subsequent end-to-end fusion. We encountered an 18-month-old boy who presented with developmental delay and mental retardation with seizure episodes, but showed normal brain magnetic resonance imaging. Chromosome study from peripheral blood showed 46,XY, r(20)(p13q13.3) karyotype. The authors report a case of ring chromosome 20 with mental retardation and epilepsy, with a review of the literature.

A Case Report of Autonomic Seizure with Recurrent Vomiting, Abdominal pain and Headache (반부성(反復性) 구토(嘔吐) 및 복통(腹痛), 두통(頭痛)을 동반(同伴)한 소아(小兒) 자율신경발작(自律神經發作) 1예(例) 보고(報告))

  • Ku, Eun-Jeong;Lee, Jae-Won
    • The Journal of Korean Medicine
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    • v.17 no.2 s.32
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    • pp.394-404
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    • 1996
  • Epilepsy is a chronic cerebral. disease resulting from a variety of factors, which is a syndrome with chief complaint of recurrent seizure caused by abnormal electrical discharge of cerebral nerve cell, while the clinical result showed that epilepsia occurs more frequently in pediatrics. A Child having the chief complaint of recerrent vomiting for 2 months undergone the brain and abdominal C.T, MRI, and gastric endoscopy, when the child was normal. While vomiting gas too serious to administer a medicine, a cyclic vomiting repeated with its discontinuation for 2-3 days after continuation for 10 days. As a result, the child visited the ambulatorium of our hospital and then was hospitalized and treated over two times, when there was a remarkably improvement. There was no any particular complaint for 1 year and 2 months, then, the child complained moderate headache. For thjs reason, we performed again electroencephalography, when there appeared in epilepsia opinion. Since then, we have experienced a case of autonomic nervous seizure which was significantly improved by anticonvulsant, and a therapy by using the phlegm resolvents and central stimulants for treating epilepsy(豁痰醒腦治癎法) as an oriental medicine. Therefore, it is to report both treatment view of oriental medicine and analysis on Oriental and Western medical literatures.

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Antiepileptic Drugs in Children : Current Concept

  • Lee, Jeehun
    • Journal of Korean Neurosurgical Society
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    • v.62 no.3
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    • pp.296-301
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    • 2019
  • An epileptic seizure is defined as the transient occurrence of signs and/or symptoms due to abnormally excessive or synchronous neuronal activity in the brain. The type of seizure is defined by the mode of onset and termination, clinical manifestation, and by the abnormal enhanced synchrony. If seizures recur, that state is defined as epilepsy. Antiepileptic drugs (AEDs) are the mainstay of treatment. Knowledge about initiating and maintaining adequate AEDs is beneficial for the clinician who treats children with epilepsy. This article will delineate the general principles for selecting, introducing, and discontinuing AEDs and outline guidelines for monitoring adverse effects. In general, AED therapy following a first unprovoked seizure in children is not recommended. However, treatment should be considered after a second seizure. In children and adolescents, if they are seizure-free for at least 2 years, attempts to withdraw medication/s should be made, taking into account the risks vs. benefits for the individual patient. The decision on when and what AED to use should be tailored according to the patient. For optimal treatment, the selection of adequate AEDs can be achieved by considering the precise definition of the patient's seizure and epilepsy syndrome. Continuous monitoring of both therapeutic and adverse effects is critical for successful treatment with AEDs.

Efficacy of levetiracetam in refractory childhood epilepsy (난치성 소아 간질에서 levetiracetam의 효과)

  • Lee, Keon-Su;Kang, Joon-Won
    • Clinical and Experimental Pediatrics
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    • v.53 no.4
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    • pp.571-578
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    • 2010
  • Purpose : To evaluate the efficacy and safety of levetiracetam adjunctive therapy for reducing the rate of seizure frequency in children with intractable pediatric epilepsy. Methods : We reviewed the medical records of 86 patients with intractable pediatric epilepsy who visited our hospital between March 1989 and February 2009. Levetiracetam was included in the previous anticonvulsant regimen for at least 6 months and the reduction in the rate of seizure frequency was determined in follow-up examinations. We analyzed demographic data, seizure types, antiepileptic drug history, levetiracetam dose, adverse effects of levetiracetam therapy, treatment outcome, electroencephalogram findings, etc. Results : More than 50% reduction in the seizure frequency was observed in 62 of the 86 (72.1%) patients; 44 patients (51.1%) became seizure free, while the seizure frequency increased in 5.8% patients. The associations between seizure reduction rate and age, associated diseases, seizure types, and seizure frequency before treatment were not significant. However, the duration of disease, dose of levetiracetam, duration and frequency of anticonvulsant administration before levetiracetam therapy were significantly correlated. Electroencephalogram findings and the cause of epilepsy showed partial correlation. Forty (46%) patients showed adverse symptoms; the symptoms in the order of their frequency were somnolence, hyperactivity, irritability, aggressiveness, tiredness, etc. Conclusion : The findings of our study provide the evidence that levetiracetam adjunctive therapy is efficacious and well tolerated in various refractory childhood epilepsy cases.

Language Lateralization in Patients with Temporal Lobe Epilepsy : A Comparison between Volumetric Analysis and the Wada Test

  • Oh, Young-Min;Koh, Eun-Jeong
    • Journal of Korean Neurosurgical Society
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    • v.45 no.6
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    • pp.329-335
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    • 2009
  • Objective : Determining language lateralization is important for the presurgical evaluation of patients with medically intractable epilepsy. The Wada test has been the gold standard for lateralization of language dominance before epilepsy surgery. However, it is an invasive test with risk, and have some limitations. Methods : We compared the volumetric analysis with Wada test, and studied the clinical potential of volumetric analysis to assess language laterality in large surgical candidates with temporal lobe epilepsy (TLE). To examine the efficacy of volumetric analysis to determine language lateralization during presurgical evaluation, we compared the volumetric analysis of the bilateral planum temporale with the results of Wada test in 59 patients with chronic intractable TLE (rTLE, n=32; lTLE, n=27) who underwent epilepsy surgery. We measured the gray matter volumes of planum temporale (PT) of each patients using the VoxelPlus2 program (Mevisys, Daejeon, Korea). Results : Overall congruence of the volumetric analysis with the Wada test was 97.75% in rTLE patients and 81.5% in lTLE patients. There were more significant leftward asymmetry of the PT in rTLE patients than lTLE patients. In lTLE patients, relatively high proportion (37%) of the patients showed bilateral or right hemispheric language dominance. Conclusion : These results provide evidence that the volumetric analysis of the PT could be used as an alternatives in language lateralization. Also, the results of the Wada test suggested that there was considerable plasticity of language representation in the brains of patients with intractable TLE and it was associated with an earlier age of brain injury.