• Clinical and Experimental Pediatrics
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• 제57권10호
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• pp.440-444
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• 2014

Purpose: Febrile seizures are induced by fever and are the most common type of seizures in children. Although numerous studies have been performed on febrile seizures, their pathophysiology remains unclear. Recent studies have shown that cytokines may play a role in the pathogenesis of febrile seizures. The present study was conducted to identify potential links between serum interleukin-1beta (IL-$1{\beta}$), tumor necrosis factor-alpha (TNF-${\alpha}$), and febrile seizures. Methods: Ninety-two patients with simple or complex febrile seizures (46 patients per seizure type), and 46 controls with comparable age, sex, and severity of temperature were enrolled. Results: The median concentrations of serum IL-$1{\beta}$ in the simple, complex febrile seizure, and control groups were 0.05, 0.1, and 0.67 pg/mL, respectively (P=0.001). Moreover, the median concentrations of TNF-${\alpha}$ in the simple, complex febrile seizure, and control groups were 2.5, 1, and 61.5 pg/mL, respectively (P=0.001). Furthermore, there were significant differences between the case groups in serum IL-$1{\beta}$ and TNF-${\alpha}$ levels (P<0.05). Conclusion: Unlike previous studies, our study does not support the hypothesis that increased IL-$1{\beta}$ and TNF-${\alpha}$ production is involved in the pathogenesis of febrile seizures.

• Clinical and Experimental Pediatrics
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• 제56권12호
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• pp.534-539
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• 2013

Purpose: Electroencephalography (EEG) is frequently ordered for patients with febrile seizures despite its unclear diagnostic value. We evaluated the prevalence of abnormal EEGs, the association between clinical findings and abnormal EEGs, and the predictive value of EEG for the recurrence of febrile seizures Methods: Data were collected on 230 children who were treated for febrile seizures at Kyung Hee University Medical Center from 2005 to 2009. EEGs were recorded after 1-2 days of hospitalization when children became afebrile. EEG patterns were categorized as normal, epileptiform, or nonspecific relative to abnormalities. The patients' medical records were reviewed, and telephone interviews with the families of the children were conducted to inquire about seizure recurrence. The relationships between clinical variables, including seizure recurrence, and EEG abnormalities were evaluated. Results: Of the 131 children included, 103 had simple and 28 had complex febrile seizures. EEG abnormalities were found in 41 children (31%). EEG abnormalities were more common in children with complex than simple febrile seizures (43% vs. 28%), but the difference was not statistically significant. Logistical regression analysis showed that having multiple seizures in a 24-hour period was significantly predictive of abnormal EEG (odds ratio, 2.98; 95% confidence interval, 1.0 to 88; P =0.048). The frequency of recurrence did not differ significantly in the normal (31%) and abnormal (23%) EEG groups. Conclusion: Multiple seizures within 24 hours were predictive of abnormal EEG in children with febrile seizures. Abnormal EEG was not predictive of febrile seizure recurrence.

• Clinical and Experimental Pediatrics
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• 제62권4호
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• pp.131-137
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• 2019

Purpose: Respiratory syncytial virus (RSV) infection can cause various neurological complications. This study aimed to investigate the RSV-associated neurologic manifestations that present with seizures. Methods: We retrospectively reviewed the medical records of patients aged less than 15 years with laboratory-confirmed RSV infections and seizures between January 2011 and December 2016 in a regional hospital in South Korea. Results: During this period, 1,193 patients with laboratory-confirmed RSV infection were identified. Of these, 35 (35 of 1,193, 2.93%; boys, 19; girls, 16; mean age: $20.8{\pm}16.6months$) presented with seizure. Febrile seizure was the most common diagnosis (27 of 35, 77.1%); simple febrile seizures in 13 patients (13 of 27, 48.1%) and complex febrile seizures in 14 (14 of 27, 51.9%). Afebrile seizures without meningitis or encephalopathy were observed in 5 patients (5 of 35, 14.3%), seizures with meningitis in 2 (2 of 35, 5.7%), and seizure with encephalopathy in 1 (1 of 35, 2.9%) patient. Lower respiratory symptoms were not observed in 8 patients. In a patient with encephalopathy, brain diffusion-weighted magnetic resonance imaging revealed transient changes in white matter, suggesting cytotoxic edema as the mechanism underlying encephalopathy. Most patients recovered with general management, and progression to epilepsy was noted in only 1 patient. Conclusion: Although febrile seizures are the most common type of seizure associated with RSV infection, the proportion of patients with complex febrile seizures was higher than that of those with general febrile seizures. Transient cytotoxic edema may be a pathogenic mechanism in RSV-related encephalopathy with seizures.

• Clinical and Experimental Pediatrics
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• 제57권9호
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• pp.384-395
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• 2014

Febrile seizure (FS) is the most common seizure disorder of childhood, and occurs in an age-related manner. FS are classified into simple and complex. FS has a multifactorial inheritance, suggesting that both genetic and environmental factors are causative. Various animal models have elucidated the pathophysiological mechanisms of FS. Risk factors for a first FS are a family history of the disorder and a developmental delay. Risk factors for recurrent FS are a family history, age below 18 months at seizure onset, maximum temperature, and duration of fever. Risk factors for subsequent development of epilepsy are neurodevelopmental abnormality and complex FS. Clinicians evaluating children after a simple FS should concentrate on identifying the cause of the child's fever. Meningitis should be considered in the differential diagnosis for any febrile child. A simple FS does not usually require further evaluation such as ordering electroencephalography, neuroimaging, or other studies. Treatment is acute rescue therapy for prolonged FS. Antipyretics are not proven to reduce the recurrence risk for FS. Some evidence shows that both intermittent therapy with oral/rectal diazepam and continuous prophylaxis with oral phenobarbital or valproate are effective in reducing the risk of recurrence, but there is no evidence that these medications reduce the risk of subsequent epilepsy. Vaccine-induced FS is a rare event that does not lead to deleterious outcomes, but could affect patient and physician attitudes toward the safety of vaccination.

• Clinical and Experimental Pediatrics
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• 제56권2호
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• pp.80-85
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• 2013

Purpose: Febrile seizures (FS) are seizures that occur between the age of 6 and 60 months, but its pathophysiology still is not fully understood. There is limited information about the correlation between levels of selenium and leptin with FS. This study aimed to determine the relationship between serum levels of selenium and leptin in children with FS. Methods: This case-control study was conducted in a University Hospital in Shahrekord, Iran, in 2011. The serum levels of selenium and leptin of 25 children with simple febrile seizure (case group) were compared with 25 febrile children without seizure (control group) in acute phase and after three months. The levels of serum selenium and leptin were measured by flame atomic absorption spectrophotometer and enzyme-linked immunosorbent assay method, respectively. Results: In acute phase, the mean serum level of selenium in case and control groups were $95.88{\pm}42.55$ and $113.25{\pm}54.43{\mu}g/dL$, respectively, and difference was not significant (P=0.415), but after three months, this level had a significant increase in both groups (P<0.001). In acute phase, the mean serum leptin level in case and control groups were $0.94{\pm}0.5$ and $0.98{\pm}0.84$ ng/mL, respectively, but difference was not significant (P=0.405). After three months, serum leptin level had no significant change in both groups (P=0.882). Conclusion: These observations suggest that serum levels of selenium and leptin have not specific relation with FS but overllay is lower, however, further study is recommended. Also selenium level in stress and acute phase was significantly lower than recovery phase.

• Clinical and Experimental Pediatrics
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• 제51권9호
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• pp.1007-1011
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• 2008

목 적 : 열성 경련은 소아에서 가장 흔한 경련의 원인으로 우리나라의 경우 6-9%의 발생율을 보인다. 열성 경련의 원인으로 유전적인 소인이 중요한 것으로 생각되고 있지만 아직까지 열성경련과 관련된 정확한 유전자는 밝혀지지 않았다. $IL-1{\beta}$은 내인성 발열인자로서 열성 경련의 발병에 중요한 역할을 할 것으로 생각된다. 방 법 : 40명의 열성경련 환아(가족형 20명, 산발형 20명)와 33명의 대조군을 대상으로 하여 말초혈액에서 DNA를 추출했으며 PCR을 통해 분석하였다. $IL-1{\beta}$ gene의 -31, -511 promoter region에서 C/T biallelic polymorphism의 빈도를 대조군과 단순 열성경련 군(가족형과 산발형)으로 나누어 각각 비교해 보았다. 결 과 : 두 군간 다형성의 빈도는 통계학적으로 유의한 차이를 보이지 않았다. 결 론 : 통계학적 의의는 없으나 가족력이 있는 열성경련 군에서 CT/CT의 빈도가 상대적으로 높게(70.0%) 측정되어 많은 수의 환아를 대상으로 한 연구가 필요할 것으로 보인다.

• 대한소아신경학회지
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• 제26권4호
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• pp.210-214
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• 2018

목적: 열성경련과 철 결핍성 빈혈간의 상관관계는 몇몇 연구에서 밝혀져 왔다. 하지만 단순 열성경련과 복합 열성경련에서 철 결핍성 빈혈의 역할을 확인한 연구는 적으며 열성경련 재발의 위험인자가 될 수 있는지 확인한 연구는 없었다. 본 연구의 목표는 단순 열성경련과 복합 열성경련에서 철 결핍성 빈혈의 역할을 알아보고 철 결핍성 빈혈이 열성경련의 재발에 미치는 영향을 확인하는 것이다. 방법: 2011년 1월부터 2018년 4월까지 중앙대병원에서 열성경련으로 진단받고 2년이상 추적관찰을 받았던 166명의 소아에 대해 연구를 진행하였다. 환자들은 다음과 같은 군으로 나뉘어 분석되었다: 단순 열성경련과 복합 열성경련, 재발이 있었던 환자와 없었던 환자. 각 그룹에서 발병시의 나이를 비교하였고 빈혈 여부를 확인하기 위한 진단검사 결과들을 비교하였다. 결과: 단순 열성경련과 복합 열성경련 군에서 철 결핍성 빈혈과 관련된 진단검사 결과는 두 군 간에 유의한 차이가 없었다. 발병 시 나이는 두 군 간에 유의한 차이를 보였고 복합 열성경련 군에서 낮은 경향을 보였다(24.00과 16.49개월) (P=0.004). 남성과 여성의 비율은 두 군 간에 차이가 없었다. 재발한 군과 재발이 없던 군을 비교할 때 평균 적혈구 용적이 유의한 차이를 보였고(P=0.043) 재발이 있던 군에서 유의하게 더 낮았다(78.92와 77.48 fl). 발병 시 나이는 재발이 있던 군에서 더 어렸다 (26.02와 19.68 개월). 결론: 본 연구에서 발병 시 나이가 복합 열성경련의 위험인자가 될 수 있음을 확인하였고 철 결핍성 빈혈이 복합 열성경련의 위험도를 올리지 않을 수 있다는 것을 알 수 있었다. 하지만 철 결핍성 빈혈은 열성경련의 재발과 연관이 있는 것으로 보인다.

• Clinical and Experimental Pediatrics
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• 제60권9호
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• pp.302-306
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• 2017

Purpose: This study aimed to investigate whether serum neuron-specific enolase (NSE) was expressed in acute encephalitis syndrome (AES) that causes neuronal damage in children. Methods: This prospective observational study was conducted in the pediatric neurology ward of Soetomo Hospital. Cases of AES with ages ranging from 1 month to 12 years were included. Cases that were categorized as simple and complex febrile seizures constituted the non-AES group. Blood was collected for the measurement of NSE within 24 hours of hemodynamic stabilization. The median NSE values of both groups were compared by using the Mann-Whitney U test. All statistical analyses were performed with SPSS version 12 for Windows. Results: In the study period, 30 patients were enrolled. Glasgow Coma Scale mostly decreased in the AES group by about 40% in the level ${\leq}8$. All patients in the AES group suffered from status epilepticus and 46.67% of them had body temperature >$40^{\circ}C$. Most of the cases in the AES group had longer duration of stay in the hospital. The median serum NSE level in the AES group was 157.86 ng/mL, and this value was significantly higher than that of the non-AES group (10.96 ng/mL; P<0.05). Conclusion: AES cases showed higher levels of serum NSE. These results indicate that serum NSE is a good indicator of neuronal brain injury.

• 대한한방소아과학회지
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• 제20권1호
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• pp.195-206
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• 2006

Objective : The purpose of this study is to investigate the current trends of children patients with convulsion. Children convulsion patients who visited the Pediatric Department of the Oriental Medicine hospital were investigated and analyzed. Method : 90 children complaining convulsion who visited the Department of Pediatrics of Kyung Hee University Oriental Medicine Hospital, between March, 2005 and October 2005 were statistically analyzed. Results : The percentage of boys outnumbered the girls. The percentage of children under the age of 5 18 66.7%. The percentage of children with family history is 43%. The majority of children had visited the hospital twice (n=21). As for intercurrent diseases, there were URI, C.P., ADHD, CHD, sequela of encephalitis and etc. As for the result of EEG examinations, 25 children were normal and 18 were abnormal. As for the appearance of seizures, Tonic-Clonic seizure was the most common seizure among the children (n=13). As for the type of convulsion, simple febrile convulsion was the most common (n=35). As for the curative effect. the percentage of children who showed improvement to treatment was 41.2%. Jangdambosintang, sunbangpaedoktang, gamichodeungeunm, gamichungeumchowitang and etc were the most frequently prescribed medicines.

• Clinical and Experimental Pediatrics
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• 제46권10호
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• pp.1003-1007
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• 2003

목 적 : 경련을 주소로 응급실을 찾아온 아이의 나이, 경련의 유형, 경련의 지속시간 등 경련의 임상 양상과 입원율과의 관계를 알아보고, 응급실에서 검사의 이상 여부와 이에 따른 입원율과의 관계를 알아보고자 하였다. 방 법 : 2000년 1월부터 2002년 6월까지 조선대학교병원 응급실을 방문한 소아 4,865명 중 경련이 주소인 180명(3.7%)을 대상으로 후향적으로 조사하였다. 경련을 주소로 응급실을 방문한 환아의 나이, 경련의 빈도, 유형, 지속시간을 분석하고 임상 양상에 따른 입원율과 응급실에서 시행한 검사(CT나 MRI 등의 방사선학적 검사와 뇌척수액 검사) 결과와 입원율을 비교 분석하였다. 결 과 : 응급실을 방문한 4,865명의 환아 중 경련이 증상인 환아는 180명(3.7%)이었다. 가장 흔한 경련의 양상은 단순 열성경련(52.2%)이었다. 경련 환아의 48.9%가 입원하였으며 연령과 성, 방사선학적 검사나 뇌척수액 검사의 이상 유무와 입원율과는 관련성이 없었다(P>0.05). 경련의 형태에 따른 입원율은 간질 중첩증 82.4%(14/17), 복합열성경련 63.6%(14/22)로 다른 형태의 경련에 비하여 통계학적으로 의의있게 높았다(P<0.05). 경련의 지속시간에 따르는 입원율은 5분 이내가 41.2%, 5-15분 60%, 15-30 58.8%, 30-60분 85.7%, 60분 이상이 66.7%이었다(Fig. 3). 경련의 지속 시간이 길어질수록 입원율은 통계학적으로 의의 있게 높았다(P<0.05). 경련의 빈도에 따른 입원율은 첫번째 발작인 경우 40.9%(45/110), 재발인 경우가 61.4%(43/70)이었다. 경련이 재발인 경우가 첫 경련에 비하여 입원율이 유의하게 높았다(P<0.05). 결 론 : 경련을 주소로 응급실을 방문한 소아 환자의 입원율은 48.9%이었다. 경련의 형태 중 간질 중첩증과 복합 열성 경련인 경우, 경련의 지속 시간이 길수록 입원율이 높았다. 또한 경련이 재발인 경우가 첫 경련인 경우보다 입원율이 높았다.