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Original Article
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Korean parents’ perceptions of the challenges and needs on school re-entry during or after childhood and adolescent cancer: a multi-institutional survey by Korean Society of Pediatric Hematology and Oncology
Jun Ah Lee, Jae Min Lee, Hyeon Jin Park, Meerim Park, Byung Kiu Park, Hee Young Ju, Ji Yoon Kim, Sang Kyu Park, Young Ho Lee, Ye Jee Shim, Heung Sik Kim, Kyung Duk Park, Yeon-Jung Lim, Hee Won Chueh, Ji Kyoung Park, Soon Ki Kim, Hyoung Soo Choi, Hyo Seop Ahn, Jeong Ok Hah, Hyoung Jin Kang, Hee Young Shin, Mee Jeong Lee
Clin Exp Pediatr. 2020;63(4):141-145.   Published online November 14, 2019
Question: What are the parental needs and challenges when their children return to school after cancer?
Finding: In addition to scholastic aptitude-oriented programs, emotional and psychosocial support is necessary for a successful return to school.
Meaning: Pediatric oncologists should actively engage in improving oncology practices to better integrate individualized school plans and educate peers and teachers to improve health literacy to make them understand the needs of children with cancer.
Hematology and Oncology
Lymphocyte-monocyte ratio at day 14 of first cisplatin-doxorubicin chemotherapy is associated with treatment outcome of pediatric patients with localized osteosarcoma
Jun Ah Lee, Hea Lin Oh, Dong Ho Kim, Jung Sub Lim
Clin Exp Pediatr. 2019;62(2):62-67.   Published online October 1, 2018

Purpose: We aimed to determine the prognostic significance of lymphocyte counts and the lymphocytemonocyte ratio (LMR) in pediatric patients with osteosarcoma. Methods: We retrospectively reviewed the medical records of 27 pediatric patients with localized extremity osteosarcoma, treated at the Korea Cancer Center Hospital between May 2002 and March 2016. Leukocyte counts and LMR before treatment and on day 14 (LMR14) of...
Oncology
Metformin displays in vitro and in vivo antitumor effect against osteosarcoma
Yunmi Ko, Aery Choi, Minyoung Lee, Jun Ah Lee
Clin Exp Pediatr. 2016;59(9):374-380.   Published online September 21, 2016
Purpose

Patients with unresectable, relapsed, or refractory osteosarcoma need a novel therapeutic agent. Metformin is a biguanide derivative used in the treatment of type II diabetes, and is recently gaining attention in cancer research.

Methods

We evaluated the effect of metformin against human osteosarcoma. Four osteosarcoma cell lines (KHOS/NP, HOS, MG-63, U-2 OS) were treated with metformin and cell proliferation was evaluated using...

Case Report
Infection
Tuberculosis-associated hemophagocytic lymphohistiocytosis in adolescent diagnosed by polymerase chain reaction
Ju-Hee Seo, Jun Ah Lee, Dong Ho Kim, Joongbum Cho, Jung Sub Lim
Clin Exp Pediatr. 2016;59(1):43-46.   Published online January 22, 2016

We present a case of tuberculosis-associated hemophagocytic lymphohistiocytosis in a 14-year-old girl. The patient presented with weight loss, malaise, fatigue, prolonged fever, and generalized lymphadenopathy. Laboratory investigation revealed pancytopenia (white blood cells, 2,020 cells/µL; hemoglobin, 10.2 g/dL; platelets, 52,000 cells/µL), hypertriglyceridemia (229 mg/dL), and hyperferritinemia (1,420 ng/mL). Bone marrow biopsy showed a hypocellular bone marrow with a large numbers of...

Review Article
Osteosarcoma in Korean children and adolescents
Jun Ah Lee
Clin Exp Pediatr. 2015;58(4):123-128.   Published online April 22, 2015

Osteosarcoma is the most frequent primary bone tumor. Advances in combination chemotherapy and surgical technique have greatly improved the survival of patients with osteosarcoma. In Korea, improvements in osteosarcoma treatment have been made over the past two decades. The 5-year event-free survival rate of Korean children and adolescents with localized disease is 64.6%, comparable to that of American or European...

Original Article
High-dose chemotherapy and autologous peripheral blood stem cell transplantation in the treatment of children and adolescents with Ewing sarcoma family of tumors
Juhee Seo, Dong Ho Kim, Jung Sub Lim, Jae-Soo Koh, Ji Young Yoo, Chang-Bae Kong, Won Seok Song, Wan Hyeong Cho, Dae-Geun Jeon, Soo-Yong Lee, Jun Ah Lee
Clin Exp Pediatr. 2013;56(9):401-406.   Published online September 30, 2013
Purpose

We performed a pilot study to determine the benefit of high-dose chemotherapy and autologous peripheral blood stem cell transplantation (HDCT/autoPBSCT) for patients with Ewing sarcoma family of tumors.

Methods

We retrospectively analyzed the data of patients who received HDCT/autoPBSCT at Korea Cancer Center Hospital. Patients with relapsed, metastatic, or centrally located tumors were eligible for the study.

Results

A total of 9 patients (3...

Evaluation of immunogenicity of the 2008-2009 seasonal influenza vaccines by microneutralization test
Seung Youn Kim, Yun Kyung Kim, Byung Wook Eun, Nam Hee Kim, Eun Kyeong Kang, Byong Sop Lee, Jung Sub Lim, Jun Ah Lee, Dong Ho Kim
Clin Exp Pediatr. 2012;55(12):474-480.   Published online December 20, 2012
Purpose

For evaluating the immunogenicity of an influenza vaccine, the microneutralization (MN) test has a higher sensitivity and specificity as compared to the hemagglutination inhibition (HI) test. However, the MN test is more time consuming and is difficult to standardize. We performed the MN test to determine its usefulness as an alternative or complementary test to the HI test for evaluating...

Case Report
Candida tropicalis arthritis of the elbow in a patient with Ewing's sarcoma that successfully responded to itraconazole
Seung Youn Kim, Jung Sub Lim, Dong Hwan Kim, Hyeon Jeong Lee, Joong Bum Cho, Jun Ah Lee, Dong Ho Kim
Clin Exp Pediatr. 2011;54(9):385-388.   Published online September 30, 2011

Fungal infections are rarely responsible for arthritis. Few cases of fungal arthritis have been reported, even in immunocompromised hosts susceptible to low-virulence organisms. Herein, the authors report the first case of Candida tropicalis arthritis in a child with a solid tumor. A 13-year-old boy with Ewing's sarcoma developed arthritis in his elbow during the neutropenic period after chemotherapy. Despite treatment...

Original Article
Pulmonary tuberculosis misdiagnosed as lung Metastasis in childhood cancer patients
Hyun Rae KK, Dong Whand Lim, Kang Min, Kyung Duk Park, Jun Ah Lee, Soo Yeon Cho, Yoon Hoh Kook, Hee Youn Kim, Dong Ho Kim
Clin Exp Pediatr. 2009;52(8):904-909.   Published online August 15, 2009

Purpose:The differential diagnosis for a pulmonary nodule is intriguing in cancer patients. Metastasis might be a preferential diagnosis, and yet possibilities of other medical conditions still exist. Pulmonary tuberculosis should be enlisted in the differential diagnosis for a pulmonary nodule in cancer patients in Korea. This study was aimed at analyzing the incidence and clinical features of pulmonary tuberculosis that were misdiagnosed as...
Bilateral retinoblastoma: Long-term follow-up results from a single institution
Sang Yul Choi, Dong Hwan Kim, Kang Min Lee, Hyun Jae Lee, Mi-Sook Kim, Tai-Won Lee, Sang Wook Choi, Dong Ho Kim, Kyung Duk Park, Jun Ah Lee
Clin Exp Pediatr. 2009;52(6):674-679.   Published online June 15, 2009
Purpose : The authors aimed to analyze the long-term effects of treatments, especially external beam radiotherapy (EBRT), in bilateral retinoblastoma patients. Methods : This retrospective study analyzed the medical records of 22 bilateral retinoblastoma patients who were registered between October, 1987 and October, 1998 and followed-up for more than 10 years. They were treated by enucleation, EBRT, and systemic chemotherapy....
Serum methotrexate level is inversely related to the outcome of osteosarcoma patients
Jun Ah Lee, Min Suk Kim, Jin Kyung Lee, Dong Ho Kim, Young Joon Hong, Won Seok Song, Wan Hyeong Cho, Soo-Yong Lee, Jung Sub Lim, Kyung Duk Park, Dae-Geun Jeon
Clin Exp Pediatr. 2009;52(5):581-587.   Published online May 15, 2009
Purpose : To evaluate the correlation between serum methotrexate (MTX) peak levels and clinical outcome of osteosarcoma, as well as to determine the correlation of these levels with the histologic response and event-free survival (EFS). Methods : To maintain the homogeneity of the study population, we selected 52 patients with localized extremity osteosarcoma who had received two cycles of neoadjuvant...
Review Article
Malignancies in children who present with bone pain
Jun Ah Lee
Clin Exp Pediatr. 2008;51(8):792-796.   Published online August 15, 2008
Bone pain in a child could be associated with cancer as an initial manifestation of the disease. The childhood malignancies that frequently present bone pain are leukemia, neuroblastoma, and primary bone tumors such as osteosarcoma and Ewing sarcoma. Persistent bone or joint pain associated with swelling, mass, or limitation of motion implies underlying serious causes. Systemic manifestations such as lymphadenopathy,...
Original Article
The optimal conditions to improve retrovirus-mediated transduction efficiency to NIH 3T3 cells
Jun Ah Lee, Kang-Min Lee, Hyun Jae Lee, Yun Jeong Lee, Dong Ho Kim, Jung Sub Lim, Kyung-Duk Park
Clin Exp Pediatr. 2007;50(10):1011-1017.   Published online October 15, 2007
Purpose : We tried to assess the optimal conditions to improve low transduction efficiency and their effect on target cells. Methods : Cultured NIH 3T3 cells were incubated with retroviral vectors bearing an enhanced green fluorescent protein (eGFP) gene. We varied the ratio of viral vectors to target cells (1:1-1:8) and the number of transfections (X1, X2), and compared transduction...
Immunomodulation Therapy in Aplastic Anemia : Relapse Rate, Complications and Long-term Survival During Follow-up for More than 1 Year
Jun Ah Lee, Hyoung Jin Kang, Hyo Jeong Han, Hyoung Soo Choi, Eun Sun Yoo, Hee Young Shin, Joong Gon Kim, Hyo Seop Ahn
Clin Exp Pediatr. 1998;41(6):775-784.   Published online June 15, 1998
Purpose : We evaluated the response to immunomodulation therapy, long-term survival and relapse rate of aplastic anemia during follow-up for more than 1 year. Methods : Twenty-eight children, with moderate to severe aplastic anemia were followed for more than one year and 7 children expired after therapy, were analyzed. Antilymphocyte globulin(ALG) or antithymocyte globulin(ATG) by itself was given to 27 patients, and cyclosporine A(CsA)...
Induction Chemotherapy with BH-AC, Idarubicin, and 6-Thioguanine in Childhood Acute Myelogenous Leukemia
Hyo Jeong Han, Hyoung Jin Kang, Jun Ah Lee, Hyoung Soo Choi, Hyeon Jin Park, Ki Woong Seong, Eun Sun Yoo, Hee Young Shin, Hyo Seop Ahn
Clin Exp Pediatr. 1998;41(2):209-215.   Published online February 15, 1998
Purpose : We have undertaken this study to evaluate the effects of induction chemotherapy involving BH-AC, idarubicin, and 6-thioguanine(6-TG). Methods : BH-AC 300mg/m2/day was administered intravenously over three hours for seven consecutive days. Idarubicin 12mg/m2/day was administered intravenously for three days. 6-TG 100 mg/m2/day was administered orally for seven days. Intrathecal ara-C was administered on the first day of treatment. Results...
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