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Original Article
Early postictal electroencephalography and correlation with clinical findings in children with febrile seizures
Kyung A Jeong, Myung Hee Han, Eun Hye Lee, Sajun Chung
Clin Exp Pediatr. 2013;56(12):534-539.   Published online December 20, 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...

Review Article
Food protein-induced proctocolitis: Is this allergic disorder a reality or a phantom in neonates?
Jin-Bok Hwang, Jeana Hong
Clin Exp Pediatr. 2013;56(12):514-518.   Published online December 20, 2013

The etiology of small and fresh rectal bleeding in neonates who are not sick is usually unknown; the only known cause is food protein-induced proctocolitis (FPIPC). It has been recently reported that FPIPC is a rare cause of rectal bleeding in newborns, and most cases have been proved to be due to idiopathic neonatal transient colitis. A recommended strategy for...

Case Report
Parotid sialolithiasis in a two-year-old boy
Do Hoon Kim, Woo Sun Song, Yeong Jin Kim, Won Duck Kim
Clin Exp Pediatr. 2013;56(10):451-455.   Published online October 31, 2013

Sialolithiasis is caused by the obstruction of a salivary gland or its excretory duct by the formation of calcareous concretions or sialoliths; this results in salivary ectasia and provokes subsequent dilation of the salivary gland. Sialolithiasis is relatively common, accounting for 30% of salivary diseases; however, it is rarely observed in childhood. This case report describes a 2-year-old male patient...

Original Article
Association between cord blood 25-hydroxyvitamin D concentrations and respiratory tract infections in the first 6 months of age in a Korean population: a birth cohort study (COCOA)
Youn Ho Shin, Jinho Yu, Kyung Won Kim, Kangmo Ahn, Seo-Ah Hong, Eun Lee, Song-I Yang, Young-Ho Jung, Hyung Young Kim, Ju-Hee Seo, Ji-Won Kwon, Byoung-Ju Kim, Hyo-Bin Kim, Jung Yeon Shim, Woo Kyung Kim, Dae Jin Song, So-Yeon Lee, Soo Young Lee, Gwang Cheon Jang, Dong In Suh, Hyeon-Jong Yang, Bong Sung Kim, Suk-Joo Choi, Soo-Young Oh, Ja-Young Kwon, Kyung-Ju Lee, Hee Jin Park, Pil Ryang Lee, Hye-Sung Won, Soo-Jong Hong
Clin Exp Pediatr. 2013;56(10):439-445.   Published online October 31, 2013
Purpose

Previous studies suggest that the concentration of 25-hydroxyvitamin D [25(OH)D] in cord blood may show an inverse association with respiratory tract infections (RTI) during childhood. The aim of the present study was to examine the influence of 25(OH)D concentrations in cord blood on infant RTI in a Korean birth cohort.

Methods

The levels of 25(OH)D in cord blood obtained from 525 Korean...

Transcatheter closure of small ductus arteriosus with amplatzer vascular plug
Eun Hyun Cho, Jinyoung Song, I-Seok Kang, June Huh, Sang Yoon Lee, Eun Young Choi, Soo Jin Kim
Clin Exp Pediatr. 2013;56(9):396-400.   Published online September 30, 2013
Purpose

The purpose of this study was to share our experience of transcatheter closure of small patent ductus arteriosus (PDA) by using an Amplatzer vascular plug (AVP).

Methods

We reviewed the medical records of 20 patients who underwent transcatheter closure at Samsung Medical Center and Sejong General Hospital from January 2008 to August 2012. The size and shape of the PDAs were evaluated...

Acute viral gastroenteritis in children hospitalized in Iksan, Korea during December 2010-June 2011
Cheol Whoan So, Dong Sup Kim, Seung Taek Yu, Ji-Hyun Cho, Jong Duck Kim
Clin Exp Pediatr. 2013;56(9):383-388.   Published online September 30, 2013
Purpose

Viral etiology is common in cases of children with acute diarrhea, and antibiotic therapy is usually not required. Therefore, it is important to determine the distribution of common viruses among children hospitalized with acute diarrhea.

Methods

We included 186 children who suffered from acute diarrhea and were hospitalized at the Wonkwang University Hospital Pediatric ward from December 1, 2010 to June 30,...

Risk factors for short term thyroid dysfunction after hematopoietic stem cell transplantation in children
You Jin Jung, Yeon Jin Jeon, Won Kyoung Cho, Jae Wook Lee, Nack-Gyun Chung, Min Ho Jung, Bin Cho, Byung-Kyu Suh
Clin Exp Pediatr. 2013;56(7):298-303.   Published online July 19, 2013
Purpose

The purpose of this study was to evaluate short-term thyroid dysfunction and related risk factors in pediatric patients who underwent hematopoietic stem cell transplantation (HSCT) during childhood.

Methods

We studied 166 patients (100 boys and 66 girls) who underwent HSCT at the Catholic HSCT Center from January 2004 through December 2009. The mean age at HSCT was 10.0±4.8 years. Thyroid function of...

Effects of coagulation factor concentrate prophylaxis in moderate and severe hemophilia A patients at a single hemophilia center in Korea
Byung Suk Moon, Jun Seok Choi, Chur Woo You
Clin Exp Pediatr. 2013;56(7):291-297.   Published online July 19, 2013
Purpose

The aim of this study was to investigate prophylactic treatment effects in Korean patients with severe hemophilia A.

Methods

A prospective study of 32 severe hemophilia A patients was conducted with the approval of the Institutional Review Board at the Eulji University Hospital. Two patients received primary prophylaxis; whereas, the other 30 patients were divided into 2 groups-secondary prophylaxis (n=15) and on-demand...

Review Article
Temporal lobe epilepsy surgery in children versus adults: from etiologies to outcomes
Yun-Jin Lee, Joon Soo Lee
Clin Exp Pediatr. 2013;56(7):275-281.   Published online July 19, 2013

Temporal lobe epilepsy (TLE) is the most common type of medically intractable epilepsy in adults and children, and mesial temporal sclerosis is the most common underlying cause of TLE. Unlike in the case of adults, TLE in infants and young children often has etiologies other than mesial temporal sclerosis, such as tumors, cortical dysplasia, trauma, and vascular malformations. Differences in...

Case Report
Severe dapsone hypersensitivity syndrome in a child
So Yoon Choi, Ho Yeon Hwang, Jung Hyun Lee, Jae Sun Park, Min Soo Jang
Clin Exp Pediatr. 2013;56(6):260-264.   Published online June 21, 2013

Dapsone (4,4'-diaminodiphenylsulfone, DDS), a potent anti-inflammatory agent, is widely used in the treatment of leprosy and several chronic inflammatory skin diseases. Dapsone therapy rarely results in development of dapsone hypersensitivity syndrome, which is characterized by fever, hepatitis, generalized exfoliative dermatitis, and lymphadenopathy. Here, we describe the case of an 11-year-old Korean boy who initially presented with high fever, a morbilliform...

Two cases of chronic pancreatitis associated with anomalous pancreaticobiliary ductal union and SPINK1 mutation
Eun Sam Rho, Earl Kim, Hong Koh, Han-Wook Yoo, Beom Hee Lee, Gu-Hwan Kim
Clin Exp Pediatr. 2013;56(5):227-230.   Published online May 28, 2013

Chronic pancreatitis is a progressive inflammatory disease resulting from repeated episodes of acute pancreatitis that impair exocrine function and eventually produce endocrine insufficiency. Some causes of chronic pancreatitis appear to be associated with alterations in the serine-protease inhibitor, Kazal type 1 (SPINK1), cationic trypsinogen (PRSS1), and cystic fibrosis-transmembrane conductance regulator (CFTR) genes, or with structural disorders in the pancreaticobiliary ductal...

Original Article
Depression and marital intimacy level in parents of infants with sleep onset association disorder: a preliminary study on the effect of sleep education
Sihyoung Lee, Seonkyeong Rhie, Kyu Young Chae
Clin Exp Pediatr. 2013;56(5):211-217.   Published online May 28, 2013
Purpose

Sleep onset association disorder (SOAD) is a form of behavioral insomnia observed in children that is caused by inappropriate sleep training. SOAD typically disturbs the sleep of not only infants and children but also their parents. We investigated levels of depression and marital intimacy among parents of infants with typical SOAD, to understand the influence of SOAD on family dynamics,...

Vitamin D deficiency in infants aged 1 to 6 months
You Jin Choi, Moon Kyu Kim, Su Jin Jeong
Clin Exp Pediatr. 2013;56(5):205-210.   Published online May 28, 2013
Purpose

The aim of this study was to recognize the state of vitamin D among healthy infants aged 1 to 6 months in South Korea, and also to identify the risk factors affecting the level of vitamin D.

Methods

A total of 117 infants were enrolled in this study for 12 months, from March 1, 2011 to February 29, 2012. Serum levels of...

Review Article
Systemic use of fluoroquinolone in children
Soo-Han Choi, Eun Young Kim, Yae-Jean Kim
Clin Exp Pediatr. 2013;56(5):196-201.   Published online May 28, 2013

Fluoroquinolones are an important class of antibiotics that are widely used in adult patients because of their broad spectrum of activity, good tissue penetration, and oral bioavailability. However, fluoroquinolone use in children is limited because juvenile animals developed arthropathy in previous experiments on fluoroquinolone use. Indications for fluoroquinolone use in patients younger than 18 years, as stated by the U.S....

Original Article
The hybrid perventricular closure of apical muscular ventricular septal defect with Amplatzer duct occluder
Soo Jin Kim, June Huh, Jin Young Song, Ji-Hyuk Yang, Tae-Gook Jun, I-Seok Kang
Clin Exp Pediatr. 2013;56(4):176-181.   Published online April 22, 2013
Purpose

Apical muscular ventricular septal defects (MVSDs), especially in small infants, can be difficult to manage using surgical and percutaneous closure. An intraoperative perventricular procedure is a good option for closing apical MVSDs in small children with or without associated cardiac anomalies. We evaluated the results of hybrid perventricular closure of apical MVSDs performed using an Amplatzer duct occluder (ADO).

Methods

We retrospectively...

Expression of peroxisome proliferator-activated receptor (PPAR)-α and PPAR-γ in the lung tissue of obese mice and the effect of rosiglitazone on proinflammatory cytokine expressions in the lung tissue
Seung Lok Ryu, Jae Won Shim, Duk Soo Kim, Hye Lim Jung, Moon Soo Park, Soo-Hee Park, Jinmi Lee, Won-Young Lee, Jung Yeon Shim
Clin Exp Pediatr. 2013;56(4):151-158.   Published online April 22, 2013
Purpose

We investigated the mRNA levels of peroxisome proliferator-activated receptor (PPAR)-α, PPAR-γ, adipokines, and cytokines in the lung tissue of lean and obese mice with and without ovalbumin (OVA) challenge, and the effect of rosiglitazone, a PPAR-γ agonist.

Methods

We developed 6 mice models: OVA-challenged lean mice with and without rosiglitazone; obese mice with and without rosiglitazone; and OVA-challenged obese mice with and...

Implantable cardioverter defibrillator therapy in pediatric and congenital heart disease patients: a single tertiary center experience in Korea
Bo Kyung Jin, Ji Seok Bang, Eun Young Choi, Gi Beom Kim, Bo Sang Kwon, Eun Jung Bae, Chung Il Noh, Jung Yun Choi, Woong Han Kim
Clin Exp Pediatr. 2013;56(3):125-129.   Published online March 18, 2013
Purpose

The use of implantable cardioverter defibrillators (ICDs) to prevent sudden cardiac death is increasing in children and adolescents. This study investigated the use of ICDs in children with congenital heart disease.

Methods

This retrospective study was conducted on the clinical characteristics and effectiveness of ICD implantation at the department of pediatrics of a single tertiary center between 2007 and 2011.

Results

Fifteen patients underwent...

Review Article
Oxidative stress and the antioxidant enzyme system in the developing brain
So-Yeon Shim, Han-Suk Kim
Clin Exp Pediatr. 2013;56(3):107-111.   Published online March 18, 2013

Preterm infants are vulnerable to the oxidative stress due to the production of large amounts of free radicals, antioxidant system insufficiency, and immature oligodendroglial cells. Reactive oxygen species (ROS) play a pivotal role in the development of periventricular leukomalacia. The three most common ROS are superoxide (O2•-), hydroxyl radical (OH), and hydrogen peroxide (H2O2). Under normal physiological conditions, a balance...

Case Report
Retropharyngeal abscess coinfected with Staphylococcus aureus and Mycobacterium tuberculosis after rhinoviral infection in a 1-month-old infant
Jeong Hee Shin, Se In Sung, Jin Kyu Kim, Ji Mi Jung, Eun Sun Kim, Soo Han Choi, Yae Jean Kim, Kang Mo Ahn, Yun Sil Chang, Won Soon Park
Clin Exp Pediatr. 2013;56(2):86-89.   Published online February 25, 2013

A retropharyngeal abscess is a rare disease entity in young infants but can develop after nasopharyngeal viral infection. Group B Streptococcus and Staphylococcus aureus are the most common pathogens in young infants, however, Mycobacterium tuberculosis is very rare. We report the case of retropharyngeal abscess and coinfection with S. aureus and M. tuberculosis in a very young infant presenting with...

Original Article
Predictors of nonresponse to intravenous immunoglobulin therapy in Kawasaki disease
Hyo Min Park, Dong Won Lee, Myung Chul Hyun, Sang Bum Lee
Clin Exp Pediatr. 2013;56(2):75-79.   Published online February 25, 2013
Purpose

It has been reported that 10% to 20% of children with Kawasaki disease (KD) will not respond to intravenous immunoglobulin (IVIG) treatment. In this study, we aimed to identify useful predictors of therapeutic failure in children with KD.

Methods

We examined 309 children diagnosed with KD at the Kyungpook National University Hospital and the Inje University Busan Paik Hospital between January 2005...

The control of invasive Candida infection in very low birth weight infants by reduction in the use of 3rd generation cephalosporin
Yu Jin Chang, Il Rak Choi, Won Sub Shin, Jang Hoon Lee, Yun Kyung Kim, Moon Sung Park
Clin Exp Pediatr. 2013;56(2):68-74.   Published online February 25, 2013
Purpose

To evaluate the effectiveness of new management policies on the incidence of invasive Candida infections

Methods

This observational study involved a retrospective analysis of the patients' medical records. In total, 99 very low birth weight infants, who were admitted to the neonatal intensive care unit at Ajou University Hospital from January 2010 to December 2011, were enrolled for the study. Period I,...

Review Article
Bone mineral density deficits in childhood cancer survivors: Pathophysiology, prevalence, screening, and management
Min Jae Kang, Jung Sub Lim
Clin Exp Pediatr. 2013;56(2):60-67.   Published online February 25, 2013

As chemotherapy and other sophisticated treatment strategies evolve and the number of survivors of long-term childhood cancer grows, the long-term complications of treatment and the cancer itself are becoming ever more important. One of the most important but often neglected complications is osteoporosis and increased risk of fracture during and after cancer treatment. Acquisition of optimal peak bone mass and...

Original Article
Detection rate and clinical impact of respiratory viruses in children with Kawasaki disease
Ja Hye Kim, Jeong Jin Yu, Jina Lee, Mi-Na Kim, Hong Ki Ko, Hyung Soon Choi, Young-Hwue Kim, Jae-Kon Ko
Clin Exp Pediatr. 2012;55(12):470-473.   Published online December 20, 2012
Purpose

The purpose of this prospective case-control study was to survey the detection rate of respiratory viruses in children with Kawasaki disease (KD) by using multiplex reverse transcriptase-polymerase chain reaction (RT-PCR), and to investigate the clinical implications of the prevalence of respiratory viruses during the acute phase of KD.

Methods

RT-PCR assays were carried out to screen for the presence of respiratory syncytial...

Enhanced detection and serotyping of Streptococcus pneumoniae using multiplex polymerase chain reaction
Jong Gyun Ahn, Seong Yeol Choi, Dong Soo Kim, Ki Hwan Kim
Clin Exp Pediatr. 2012;55(11):424-429.   Published online November 23, 2012
Purpose

Methods for quick and reliable detection of Streptococcus pneumoniae are needed for the diagnosis of pneumococcal disease and vaccine studies. This study aimed to show that sequential multiplex polymerase chain reaction (PCR) is more efficient than conventional culture in achieving S. pneumoniae-positive results.

Methods

Nasopharyngeal (NP) secretions were obtained from 842 pediatric patients admitted with lower respiratory infections at Severance Children's Hospital...

Regional differences in phylogenetic group of Escherichia coli strains isolated from children with urinary tract infection in Korea
Ui-Yoon Choi, Seung Beom Han, Soo Young Lee, Jin Han Kang, Sun Mi Kim, Sang Hyuk Ma
Clin Exp Pediatr. 2012;55(11):420-423.   Published online November 23, 2012
Purpose

We phylogenetically analyzed the Escherichia coli strains isolated from children with urinary tract infection (UTI) in 2 regions of Korea. Virulence factors (VFs) and antibiotic resistance of the strains were also determined to compare the possible differences.

Methods

A total of 138 E. coli strains were collected from the 2 regions; Gyeongin (78 strains) and Gyeongnam (60 strains). The phylogenetic groups were...

Case Report
Magnetic resonance imaging and spectroscopic analysis in 5 cases of Pelizaeus-Merzbacher disease: metabolic abnormalities as diagnostic tools
Eun Lee, Mi-Sun Yum, Hae-Won Choi, Han-Wook Yoo, Su Jeong You, Eun-Hye Lee, Tae-Sung Ko
Clin Exp Pediatr. 2012;55(10):397-402.   Published online October 29, 2012

Pelizaeus-Merzbacher disease (PMD) is a rare, X-linked recessive disorder characterized by dysmyelination in the central nervous system. PMD results from deletion, mutation, or duplication of the proteolipid protein gene (PLP1) located at Xq22, leading to the failure of axon myelination by oligodendrocytes in the central nervous system. PMD may be suspected when there are clinical manifestations such as nystagmus, developmental...

Original Article
Cognitive and other neuropsychological profiles in children with newly diagnosed benign rolandic epilepsy
Soonhak Kwon, Hye-Eun Seo, Su Kyeong Hwang
Clin Exp Pediatr. 2012;55(10):383-387.   Published online October 29, 2012
Purpose

Although benign rolandic epilepsy (BRE) is a benign condition, it may be associated with a spectrum of behavioral, psychiatric, and cognitive disorders. This study aimed to assess the cognitive and other neuropsychological profiles of children with BRE.

Methods

In total, 23 children with BRE were consecutively recruited. All children underwent sleep electroencephalography (EEG) and were assessed on a battery of comprehensive neuropsychological...

Review Article
Renal scar formation after urinary tract infection in children
Young Seo Park
Clin Exp Pediatr. 2012;55(10):367-370.   Published online October 29, 2012

Urinary tract infection (UTI) is a common bacterial illness in children. Acute pyelonephritis in children may lead to renal scarring with the risk of later hypertension, preeclampsia during pregnancy, proteinuria, and renal insufficiency. Until now, vesicoureteral reflux (VUR) has been considered the most important risk factor for post-UTI renal scar formation in children. VUR predisposes children with UTI to pyelonephritis,...

Case Report
Sequential magnetic resonance spectroscopic changes in a patient with nonketotic hyperglycinemia
Ji Hun Shin, So Yoon Ahn, Jeong Hee Shin, Se In Sung, Ji Mi Jung, Jin Kyu Kim, Eun Sun Kim, Hyung Doo Park, Ji Hye Kim, Yun Sil Chang, Won Soon Park
Clin Exp Pediatr. 2012;55(8):301-305.   Published online August 23, 2012

Nonketotic hyperglycinemia (NKH) is a rare inborn error of amino acid metabolism. A defect in the glycine cleavage enzyme system results in highly elevated concentrations of glycine in the plasma, urine, cerebrospinal fluid, and brain, resulting in glycine-induced encephalopathy and neuropathy. The prevalence of NKH in Korea is very low, and no reports of surviving patients are available, given the...

Bronchial compression in an infant with isolated secundum atrial septal defect associated with severe pulmonary arterial hypertension
Sung-Hee Park, So Young Park, Nam Kyun Kim, Su-Jin Park, Han Ki Park, Young Hwan Park, Jae Young Choi
Clin Exp Pediatr. 2012;55(8):297-300.   Published online August 23, 2012

Symptomatic pulmonary arterial hypertension (PAH) in patients with isolated atrial septal defect (ASD) is rare during infancy. We report a case of isolated ASD with severe PAH in an infant who developed airway obstruction as cardiomegaly progressed. The patient presented with recurrent severe respiratory insufficiency and failure to thrive before the repair of the ASD. Echocardiography confirmed volume overload on...