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Review Article
Infection
Effects of nasopharyngeal microbiota in respiratory infections and allergies
Hyun Mi Kang, Jin Han Kang
Clin Exp Pediatr. 2021;64(11):543-551.   Published online April 15, 2021
· The nasal microbiota varies with age and is shaped by various factors in healthy individuals.
· The pathological condition of the respiratory tract appears to be associated with reduced nasal microbiota biodiversity, while dysbiosis is involved in the pathophysiology of many respiratory diseases, including otitis, sinusitis, allergic diseases, and lower respiratory infections.
Case Report
Rheumatology
Recurrent macrophage activation syndrome since toddler age in an adolescent boy with HLA B27 positive juvenile ankylosing spondylitis
Joon Hyeong Park, Yu Mi Seo, Seung Beom Han, Ki Hwan Kim, Jung Woo Rhim, Nack Gyun Chung, Myung Shin Kim, Jin Han Kang, Dae Chul Jeong
Clin Exp Pediatr. 2016;59(10):421-424.   Published online October 17, 2016

Recurrent macrophage activation syndrome (MAS) is very rare. We present the case of an adolescent boy with human leukocyte antigen (HLA) B27-positive ankylosing spondylitis (AS), who experienced episodes of recurrent MAS since he was a toddler. A 16-year-old boy was admitted because of remittent fever with pancytopenia and splenomegaly after surgical intervention for an intractable perianal abscess. He had been...

Review Article
BK virus-associated hemorrhagic cystitis after pediatric stem cell transplantation
Seung Beom Han, Bin Cho, Jin Han Kang
Clin Exp Pediatr. 2014;57(12):514-519.   Published online December 31, 2014

Hemorrhagic cystitis is a common stem cell transplantation-related complication. The incidence of early-onset hemorrhagic cystitis, which is related to the pretransplant conditioning regimen, has decreased with the concomitant use of mesna and hyperhydration. However, late-onset hemorrhagic cystitis, which is usually caused by the BK virus, continues to develop. Although the BK virus is the most common pathogenic microorganism of poststem...

Case Report
Use of intravenous immunoglobulin in a disseminated varicella infection in an immunocompromised child
Jae Hong Kim, Dae Hyun Kwon, E Young Bae, Seung Beom Han, Jae Wook Lee, Nack Gyun Chung, Dae Chul Jeong, Bin Cho, Jin Han Kang, Hack Ki Kim
Clin Exp Pediatr. 2014;57(8):370-373.   Published online August 25, 2014

Varicella-zoster virus infection can lead to severe illness in immunocompromised patients. Further the mortality rate of disseminated varicella infection is extremely high particularly in immunocompromised children. We report a case of disseminated varicella infection in a child with acute lymphoblastic leukemia who was receiving chemotherapy, but was initially admitted with only for acute abdominal pain. The patient rapidly developed severe...

Liver abscess due to Klebsiella pneumoniae in a healthy 12-year-old boy
Da Hye Yoon, Yeon Jin Jeon, E Young Bae, Dae Chul Jeong, Jin Han Kang
Clin Exp Pediatr. 2013;56(11):496-499.   Published online November 27, 2013

Pyogenic liver abscess (PLA) is rare in healthy children. We report a case of PLA in an immunocompetent 12-year-old boy. Percutaneous catheter drainage was performed for the abscess. In addition, parenteral antibiotics were administered for 3 weeks. Klebsiella pneumoniae was detected in the culture of blood and drained fluid. Here, we present this case and a brief review of the...

A case of Kikuchi-Fujimoto disease with autoimmune thyroiditis
Eun Ji Go, You Jin Jung, Seung Beom Han, Byung Kyu Suh, Jin Han Kang
Clin Exp Pediatr. 2012;55(11):445-448.   Published online November 23, 2012

Kikuchi-Fujimoto disease (KFD) is a benign self-limiting disease characterized by fever and lymphadenitis. The etiology and pathogenesis of KFD is unclear. However, two hypotheses have been suggested: a viral infection hypothesis and an autoimmune hypothesis. Several KFD patients with various types of autoimmune diseases have been reported, and these reports support the hypothesis for autoimmune pathogenesis of KFD. Here, we...

Original Article
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...

Clinical manifestations of CNS infections caused by enterovirus type 71
Cheol Soon Choi, Yun Jung Choi, Ui Yoon Choi, Ji Whan Han, Dae Chul Jeong, Hyun Hee Kim, Jong Hyun Kim, Jin Han Kang
Clin Exp Pediatr. 2011;54(1):11-16.   Published online January 31, 2011
Purpose

Enterovirus 71, one of the enteroviruses that are responsible for both hand-foot-and-mouth disease and herpangina, can cause neural injury. During periods of endemic spread of hand-foot-andmouth disease caused by enterovirus 71, CNS infections are also frequently diagnosed and may lead to increased complications from neural injury, as well as death. We present the results of our epidemiologic research on the...

A case of meningoencephalitis caused by Listeria monocytogenes in a healthy child
Ji Eun Lee, Won Kyoung Cho, Chan Hee Nam, Min Ho Jung, Jin Han Kang, Byung Kyu Suh
Clin Exp Pediatr. 2010;53(5):653-656.   Published online May 31, 2010

Listeria monocytogenes is a facultative anaerobic, gram-positive bacillus that is isolated from the soil, vegetables, and wild or domestic animals. Listeria occurs predominantly in the elderly, immunocompromised patients, pregnant women and newborns. Infections by this microorganism are rare in healthy infants and children. L. monocytogenes may cause meningitis, meningoencephalitis, brain abscess, pyogenic arthritis, osteomyelitis, and liver abscesses in children. The...

Case Report
A case of idiopathic pulmonary hemosiderosis with seasonal recurrence
Ga Young Kwak, Na Young Lee, Moon Hee Lee, Soo Young Lee, Seung Yun Chung, Jin Han Kang, Dae Chul Jeong
Clin Exp Pediatr. 2009;52(2):256-260.   Published online February 15, 2009
Idiopathic pulmonary hemosiderosis (IPH) is a rare disease affecting mostly children. This disorder is characterized by recurrent episodes of hemoptysis, bilateral diffuse pulmonary infiltrates, and iron-deficiency anemia. An acute fulminant alveolar hemorrhage can be fatal due to respiratory failure, while chronic hemorrhage leads to hemosiderin-laden macrophages and pulmonary fibrosis. Genetic, autoimmune, allergic, environmental, and metabolic mechanisms of pathogenesis have been...
Original Article
The immunogenicity and reactogenicity of Td booster vaccination in Korean preadolescents, aged with 11-12 years old
Soo Young Lee, Ga Young Kwak, Hye Rin Mok, Jong Hyun Kim, Jae Kyun Hur, Kyung Il Lee, Park Joon Su, Sang Hyuk Ma, Hwang Min Kim, Jin Han Kang
Clin Exp Pediatr. 2008;51(11):1185-1190.   Published online November 15, 2008
Purpose : This study was undertaken to evaluate the immunogenicity and reactogenicity of Td booster immunization in early preadolescents of Korea. Methods : Healthy preadolescents, who had been vaccinated with 4 or 5 doses of DTaP vaccines until 6 years old age, were enrolled in this study from August 2006 to April 2007. Diphtheria and tetanus anti-toxoid antibodies in sera were...
Performance effectiveness of pediatric index of mortality 2 (PIM2) and pediatricrisk of mortality III (PRISM III) in pediatric patients with intensive care in single institution: Retrospective study
Hui Seung Hwang, Na Young Lee, Seung Beom Han, Ga Young Kwak, Soo Young Lee, Seung Yun Chung, Jin Han Kang, Dae Chul Jeong
Clin Exp Pediatr. 2008;51(11):1158-1164.   Published online November 15, 2008
Purpose : To investigate the discriminative ability of pediatric index of mortality 2 (PIM2) and pediatric risk of mortality III (PRISM III) in predicting mortality in children admitted into the intensive care unit (ICU). Methods : We retrospectively analyzed variables of PIM2 and PRISM III based on medical records with children cared for in a single hospital ICU from January 2003...
An analysis of one-year experience of pediatric observation unit: The first report in Korea
Jee Young Lee, Ui-Yoon Choi, Soo Young Lee, Ji-Young Lee, Byong Chan Lee, Hui Sung Hwang, Hye Rin Mok, Dae Chul Jeong, Seung Yun Chung, Jin Han Kang
Clin Exp Pediatr. 2007;50(7):622-628.   Published online July 15, 2007
Purpose : While pediatric observation units (POU) have become a common practice in hospitals throughout developed countries, there has been no report about POUs in Korea so far. The aims of this study were to analyze our one-year's experience of the POU and to decide which disease entities are suitable for the POU. Methods : All children admitted from...
The immunogenicity and safety of three-component DTaP vaccine in Korean infants
Jin Han Kang, Jong Hyun Kim, Jung Hyun Lee, Soo Young Lee, Young Jin Hong, Chang Hwi Kim
Clin Exp Pediatr. 2007;50(4):355-362.   Published online April 15, 2007
Purpose : We conducted the study to evaluate the immunogenicity and safety of three component DTaP vaccine (Infanrix ) in a group of Korean healthy infants on a three-dose primary vaccination. And we compared the immunogenicity of this DTaP vaccine with two component DTaP vaccine which has been widely used in Korea. Methods : We enrolled one hundred fifty one healthy...
Review Article
Fever and rash
Jin Han Kang
Clin Exp Pediatr. 2007;50(2):132-137.   Published online February 15, 2007
Patients with febrile illness and skin rashes need full and immediate attention. In general, these diseases show mild manifestations and good prognosis. However, causalities of some diseases with fever and rash may be life threatening or trivial. So, the differential diagnosis for those patients is extensive. A through history, a careful physical examination and close observation of clinical progress are...
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