1.Improvement of neutropenia in 2 adolescent cases treated with empagliflozin for glycogen storage disease type Ib
Pediatric Emergency Medicine Journal 2024;11(3):136-141
Neutropenia and elevated concentrations of hepatic transaminases often lead to referrals from emergency or outpatient departments to relevant specialists to diagnose underlying inborn errors of metabolism. Glycogen storage disease type (GSD) Ib, a rare congenital disorder of glucose metabolism caused by the SLC37A4 gene mutations, shows various manifestations, including persistent neutropenia and elevated hepatic transaminases. Empagliflozin has demonstrated its efficacy in treating GSD Ib-associated neutropenia by reducing the entry of 1,5-anhydroglucitol-6-phosphate into the neutrophils. This article reports successful empagliflozin therapy for GSD Ib-related neutropenia in 2 Korean adolescents. Diagnosing GSD Ib is complex and usually initiated by a referral from emergency or outpatient departments when there is a high index of suspicion. Once diagnosed, empagliflozin shows promising outcomes in restoring counts and function of the neutrophils without severe adverse effects in children with GSD Ib, supporting it as a safe and effective therapeutic option for GSD Ib-associated neutropenia.
2.Reversible Metronidazole-induced Encephalopathy in a Patient with Acute Lymphoblastic Leukemia during Chemotherapy
Hyunwoo BAE ; So Mi LEE ; Ji Yoon KIM
Clinical Pediatric Hematology-Oncology 2017;24(2):153-156
We describe our experience regarding metronidazole-induced encephalopathy in a patient with acute lymphoblastic leukemia during chemotherapy. A 17-year-old girl was admitted to our institution with complaints of abdominal pain and mucoid stools. She was diagnosed with acute lymphoblastic leukemia and had been undergoing intensified chemotherapy protocol. During the fifth week of interim maintenance-1 therapy, she developed a fever and complained of chills. On stool examination, stool occult blood was positive and Clostridium difficile toxin A/B test was positive. She was started on metronidazole treatment for possible Clostridium difficile infection and other inflammatory gastrointestinal diseases. Ten days later, the patient complained of dizziness and nausea. A brain MRI was performed to make a differential diagnosis of any chemotherapy- induced CNS complication such as necrotizing leukoencephalopathy. The brain MRI showed features of metronidazole-induced encephalopathy. Metronidazole was discontinued and symptoms started to subside four days after. A follow-up brain MRI performed at four weeks showed that lesions of the dentate nucleus had disappeared.
Abdominal Pain
;
Adolescent
;
Brain
;
Brain Diseases
;
Cerebellar Nuclei
;
Chills
;
Clostridium difficile
;
Diagnosis, Differential
;
Dizziness
;
Drug Therapy
;
Female
;
Fever
;
Follow-Up Studies
;
Gastrointestinal Diseases
;
Humans
;
Leukoencephalopathies
;
Magnetic Resonance Imaging
;
Metronidazole
;
Nausea
;
Occult Blood
;
Precursor Cell Lymphoblastic Leukemia-Lymphoma
3.Clinical Impact of Coronavirus Disease 2019 Outbreaks in Korea on Seizures in Children
Seungjae LEE ; Su-Kyeong HWANG ; Yun-Jeong LEE ; Hyunwoo BAE ; Soonhak KWON
Annals of Child Neurology 2024;32(3):154-160
Purpose:
Coronavirus disease 2019 (COVID-19) can be associated with neurological complications. This study investigated the impact of COVID-19 outbreaks on seizure incidence and duration in children in Korea.
Methods:
We retrospectively analyzed medical records from Kyungpook National University Children’s Hospital, including 768 children with seizures during the peak COVID-19 outbreaks in March and August 2022, and compared patterns with the same periods in 2021. We examined demographic and clinical characteristics, causes of seizures, underlying conditions, seizure durations, and COVID-19 test results.
Results:
Out of 16,373,836 COVID-19 cases during the first peak, 25.6% were children (4,184,383), and during the second peak, 20.5% of 6,400,244 cases were children (1,314,331). No significant age differences were observed between either peak and the previous year. However, when compared to the previous year, febrile seizures (FS) were more common during both peaks (25.9% vs. 65.1% in the first peak; 34.3% vs. 59.2% in the second peak). The prevalence of FS was significantly higher in the COVID-19-positive group (84.1%) than in the COVID-19-negative group (51.9%). The incidence of new-onset seizures or breakthrough seizures showed no significant difference. Seizure duration and the incidence of status epilepticus (SE) showed no significant changes, but SE was more common in the COVID-19-negative group (17.1% vs. 6.2%). The clinical features of FS were similar in both groups.
Conclusion
COVID-19 appeared to increase the risk of FS in children, but there was no significant impact on the risk of breakthrough seizures or SE in children with epilepsy. Nevertheless, larger-scale studies are necessary.
4.A Pediatric Case of AVPR2-related Nephrogenic Syndrome of Inappropriate Antidiuresis
Hyunwoo BAE ; Hee Sun BAEK ; Hae Min JANG ; Eun Joo LEE ; Min Hyun CHO
Childhood Kidney Diseases 2020;24(2):126-130
Nephrogenic syndrome of inappropriate antidiuresis (NSIAD) is a rare X-linked genetic condition caused by a gain-of-function mutation of arginine vasopressin receptor 2 gene, AVPR2. We report the case of a male neonate diagnosed with NSIAD based on his DNA sequence of the AVPR2 gene and the clinical course. He demonstrated a complete correction of hyponatremia using oral urea. We suggest that (1) sequencing analysis of the AVPR2 gene ought to be done in newborns with prolonged euvolemic hyponatremia, hypo-osmolality, high urinary sodium and normal/low or undetectable AVP levels, and that (2) oral urea is a safe and effective treatment option in infants diagnosed with NSIAD until the patients are grown-up.
5.Clinical Usefulness of Simultaneous Electroencephalography and Functional Magnetic Resonance Imaging in Children With Focal Epilepsy
Yun Jeong LEE ; Hyunwoo BAE ; Jun Chul BYUN ; Soonhak KWON ; Sung Suk OH ; Saeyoon KIM
Journal of Clinical Neurology 2022;18(5):535-546
Background:
and Purpose The current study analyzed the interictal epileptiform discharge (IED)-related hemodynamic response and aimed to determine the clinical usefulness of simultaneous electroencephalography and functional magnetic resonance imaging (EEG-fMRI) in defining the epileptogenic zone (EZ) in children with focal epilepsy.
Methods:
Patients with focal epilepsy showing IEDs on conventional EEG were evaluated using EEG-fMRI. Statistical analyses were performed using the times of spike as events modeled with multiple hemodynamic response functions. The area showing the most significant t-value for blood-oxygen-level-dependent (BOLD) changes was compared with the presumed EZ. Moreover, BOLD responses between -9 and +9 s around the spike times were analyzed to track the hemodynamic response patterns over time.
Results:
Half (n=13) of 26 EEG-fMRI investigations of 19 patients were successful. Two patients showed 2 different types of spikes, resulting in 15 analyses. The maximum BOLD response was concordant with the EZ in 11 (73.3%) of the 15 analyses. In 10 (66.7%) analyses, the BOLD response localized the EZs more specifically. Focal BOLD responses in the EZs occurred before IEDs in 11 analyses and were often widespread after IEDs. Hemodynamic response patterns were consistent in the same epilepsy syndrome or when repeating the investigation in the same patients.
Conclusions
EEG-fMRI can provide additional information for localizing the EZ in children with focal epilepsy, and also reveal the pathogenesis of pediatric epilepsy by evaluating the patterns in the hemodynamic response across time windows of IEDs.
6.Bridging the Gap in Epilepsy Care for Refugees in Nakivale Settlement, Uganda
Hyunwoo BAE ; Hyunsuk LIM ; Ariane Dora NITEKA ; Yun-Jeong LEE ; Soonhak KWON
Annals of Child Neurology 2025;33(2):56-65
Purpose:
The global increase in forcibly displaced people, combined with insufficient aid, leaves many—in particular, people with epilepsy—in a dire medical state. Our study aimed to understand the demographics and clinical features of epilepsy in the Nakivale refugee settlement and to highlight our intervention through the ‘CARE FOR ALL’ project, which will run for 5 years.
Methods:
Between August 2022 and May 2023, we conducted four outreach visits across three locations in Uganda, consulting 161 patients. After excluding incomplete data, we analyzed the medical records of 81 epilepsy cases.
Results:
Of the 81 patients, most were male (65.4%), under 18 years old (77.8%), had low education levels (93.8%), and were predominantly Congolese (58.0%). The majority experienced focal onset seizures (51.8%), and epilepsy began before the age of one in 28.4% of patients. All patients had comorbidities, with intellectual impairment (70.4%) and cerebral palsy (27.2%) being the most common. Identified risk factors included antenatal complications, central nervous system infections, and war-related injuries. Before our intervention, the treatment gap was 76.5%; this was reduced to 0% after the project, which also significantly decreased seizure frequency (seizure freedom 30.9%, P<0.05). Carbamazepine was the most common antiseizure medication used (59.2%).
Conclusion
Refugees with epilepsy face major barriers to care that negatively impact their quality of life. A coordinated effort by governments and health agencies is crucial to overcome these challenges and improve outcomes for displaced individuals with epilepsy.
7.Bridging the Gap in Epilepsy Care for Refugees in Nakivale Settlement, Uganda
Hyunwoo BAE ; Hyunsuk LIM ; Ariane Dora NITEKA ; Yun-Jeong LEE ; Soonhak KWON
Annals of Child Neurology 2025;33(2):56-65
Purpose:
The global increase in forcibly displaced people, combined with insufficient aid, leaves many—in particular, people with epilepsy—in a dire medical state. Our study aimed to understand the demographics and clinical features of epilepsy in the Nakivale refugee settlement and to highlight our intervention through the ‘CARE FOR ALL’ project, which will run for 5 years.
Methods:
Between August 2022 and May 2023, we conducted four outreach visits across three locations in Uganda, consulting 161 patients. After excluding incomplete data, we analyzed the medical records of 81 epilepsy cases.
Results:
Of the 81 patients, most were male (65.4%), under 18 years old (77.8%), had low education levels (93.8%), and were predominantly Congolese (58.0%). The majority experienced focal onset seizures (51.8%), and epilepsy began before the age of one in 28.4% of patients. All patients had comorbidities, with intellectual impairment (70.4%) and cerebral palsy (27.2%) being the most common. Identified risk factors included antenatal complications, central nervous system infections, and war-related injuries. Before our intervention, the treatment gap was 76.5%; this was reduced to 0% after the project, which also significantly decreased seizure frequency (seizure freedom 30.9%, P<0.05). Carbamazepine was the most common antiseizure medication used (59.2%).
Conclusion
Refugees with epilepsy face major barriers to care that negatively impact their quality of life. A coordinated effort by governments and health agencies is crucial to overcome these challenges and improve outcomes for displaced individuals with epilepsy.
8.Bridging the Gap in Epilepsy Care for Refugees in Nakivale Settlement, Uganda
Hyunwoo BAE ; Hyunsuk LIM ; Ariane Dora NITEKA ; Yun-Jeong LEE ; Soonhak KWON
Annals of Child Neurology 2025;33(2):56-65
Purpose:
The global increase in forcibly displaced people, combined with insufficient aid, leaves many—in particular, people with epilepsy—in a dire medical state. Our study aimed to understand the demographics and clinical features of epilepsy in the Nakivale refugee settlement and to highlight our intervention through the ‘CARE FOR ALL’ project, which will run for 5 years.
Methods:
Between August 2022 and May 2023, we conducted four outreach visits across three locations in Uganda, consulting 161 patients. After excluding incomplete data, we analyzed the medical records of 81 epilepsy cases.
Results:
Of the 81 patients, most were male (65.4%), under 18 years old (77.8%), had low education levels (93.8%), and were predominantly Congolese (58.0%). The majority experienced focal onset seizures (51.8%), and epilepsy began before the age of one in 28.4% of patients. All patients had comorbidities, with intellectual impairment (70.4%) and cerebral palsy (27.2%) being the most common. Identified risk factors included antenatal complications, central nervous system infections, and war-related injuries. Before our intervention, the treatment gap was 76.5%; this was reduced to 0% after the project, which also significantly decreased seizure frequency (seizure freedom 30.9%, P<0.05). Carbamazepine was the most common antiseizure medication used (59.2%).
Conclusion
Refugees with epilepsy face major barriers to care that negatively impact their quality of life. A coordinated effort by governments and health agencies is crucial to overcome these challenges and improve outcomes for displaced individuals with epilepsy.
9.Bridging the Gap in Epilepsy Care for Refugees in Nakivale Settlement, Uganda
Hyunwoo BAE ; Hyunsuk LIM ; Ariane Dora NITEKA ; Yun-Jeong LEE ; Soonhak KWON
Annals of Child Neurology 2025;33(2):56-65
Purpose:
The global increase in forcibly displaced people, combined with insufficient aid, leaves many—in particular, people with epilepsy—in a dire medical state. Our study aimed to understand the demographics and clinical features of epilepsy in the Nakivale refugee settlement and to highlight our intervention through the ‘CARE FOR ALL’ project, which will run for 5 years.
Methods:
Between August 2022 and May 2023, we conducted four outreach visits across three locations in Uganda, consulting 161 patients. After excluding incomplete data, we analyzed the medical records of 81 epilepsy cases.
Results:
Of the 81 patients, most were male (65.4%), under 18 years old (77.8%), had low education levels (93.8%), and were predominantly Congolese (58.0%). The majority experienced focal onset seizures (51.8%), and epilepsy began before the age of one in 28.4% of patients. All patients had comorbidities, with intellectual impairment (70.4%) and cerebral palsy (27.2%) being the most common. Identified risk factors included antenatal complications, central nervous system infections, and war-related injuries. Before our intervention, the treatment gap was 76.5%; this was reduced to 0% after the project, which also significantly decreased seizure frequency (seizure freedom 30.9%, P<0.05). Carbamazepine was the most common antiseizure medication used (59.2%).
Conclusion
Refugees with epilepsy face major barriers to care that negatively impact their quality of life. A coordinated effort by governments and health agencies is crucial to overcome these challenges and improve outcomes for displaced individuals with epilepsy.
10.Bridging the Gap in Epilepsy Care for Refugees in Nakivale Settlement, Uganda
Hyunwoo BAE ; Hyunsuk LIM ; Ariane Dora NITEKA ; Yun-Jeong LEE ; Soonhak KWON
Annals of Child Neurology 2025;33(2):56-65
Purpose:
The global increase in forcibly displaced people, combined with insufficient aid, leaves many—in particular, people with epilepsy—in a dire medical state. Our study aimed to understand the demographics and clinical features of epilepsy in the Nakivale refugee settlement and to highlight our intervention through the ‘CARE FOR ALL’ project, which will run for 5 years.
Methods:
Between August 2022 and May 2023, we conducted four outreach visits across three locations in Uganda, consulting 161 patients. After excluding incomplete data, we analyzed the medical records of 81 epilepsy cases.
Results:
Of the 81 patients, most were male (65.4%), under 18 years old (77.8%), had low education levels (93.8%), and were predominantly Congolese (58.0%). The majority experienced focal onset seizures (51.8%), and epilepsy began before the age of one in 28.4% of patients. All patients had comorbidities, with intellectual impairment (70.4%) and cerebral palsy (27.2%) being the most common. Identified risk factors included antenatal complications, central nervous system infections, and war-related injuries. Before our intervention, the treatment gap was 76.5%; this was reduced to 0% after the project, which also significantly decreased seizure frequency (seizure freedom 30.9%, P<0.05). Carbamazepine was the most common antiseizure medication used (59.2%).
Conclusion
Refugees with epilepsy face major barriers to care that negatively impact their quality of life. A coordinated effort by governments and health agencies is crucial to overcome these challenges and improve outcomes for displaced individuals with epilepsy.