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Original Article
Cardiology
Subclinical left ventricular dysfunction in children after hematopoietic stem cell transplantation for severe aplastic anemia: a case control study using speckle tracking echocardiography
Beom Joon Kim, Kyung Pil Moon, Ji-Hong Yoon, Eun-Jung Lee, Jae Young Lee, Seong Koo Kim, Jae Wook Lee, Nack Gyun Chung, Bin Cho, Hack Ki Kim
Clin Exp Pediatr. 2016;59(4):190-195.   Published online April 30, 2016
Purpose

Severe aplastic anemia (SAA), a fatal disease, requires multiple transfusion, immunosuppressive therapy, and finally, hematopoietic stem cell transplantation (HSCT) as the definitive treatment. We hypothesized that iron overloading associated with multiple transfusions and HSCTrelated complications may adversely affect cardiac function. Left ventricular (LV) function was assessed in children after HSCT for SAA.

Methods

Forty-six consecutive patients with a median age of 9.8...

Review Article
Haploidentical hematopoietic stem cell transplantation in children and adolescents with acquired severe aplastic anemia
Ho Joon Im, Kyung-Nam Koh, Jong Jin Seo
Clin Exp Pediatr. 2015;58(6):199-205.   Published online June 22, 2015

Severe aplastic anemia (SAA) is a life-threatening disorder for which allogeneic hematopoietic stem cell transplantation (HSCT) is the current available curative treatment. HSCT from matched sibling donors (MSDs) is the preferred therapy for children with acquired SAA. For patients who lack MSDs, immunosuppressive therapy (IST) is widely accepted as a first-line treatment before considering HCT from an unrelated donor (URD)....

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...

Mesenchymal stem cells transplantation for neuroprotection in preterm infants with severe intraventricular hemorrhage
So Yoon Ahn, Yun Sil Chang, Won Soon Park
Clin Exp Pediatr. 2014;57(6):251-256.   Published online June 30, 2014

Severe intraventricular hemorrhaging (IVH) in premature infants and subsequent posthemorrhagic hydrocephalus (PHH) causes significant mortality and life-long neurological complications, including seizures, cerebral palsy, and developmental retardation. However, there are currently no effective therapies for neonatal IVH. The pathogenesis of PHH has been mainly explained by inflammation within the subarachnoid spaces due to the hemolysis of extravasated blood after IVH. Obliterative...

Original Article
Long-term follow-up of Fanconi anemia: clinical manifestation and treatment outcome
Byung Gyu Yoon, Hee Na Kim, Ui Joung Han, Hae In Jang, Dong Kyun Han, Hee Jo Baek, Tai Ju Hwang, Hoon Kook
Clin Exp Pediatr. 2014;57(3):125-134.   Published online March 31, 2014
Purpose

The aim of this study was to characterize Korean patients with Fanconi anemia (FA), which is a rare but very challenging genetic disease.

Methods

The medical records of 12 FA patients diagnosed at Chonnam National University Hospital from 1991 to 2012 were retrospectively reviewed.

Results

The median age at diagnosis was 6.2 years. All patients showed evidence of marrow failure and one or more...

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...

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...

Immune reconstitution after allogeneic hematopoietic stem cell transplantation in children: a single institution study of 59 patients
Hyun O Kim, Hyun Jin Oh, Jae Wook Lee, Pil-Sang Jang, Nack-Gyun Chung, Bin Cho, Hack-Ki Kim
Clin Exp Pediatr. 2013;56(1):26-31.   Published online January 29, 2013
Purpose

Lymphocyte subset recovery is an important factor that determines the success of hematopoietic stem cell transplantation (HSCT). Temporal differences in the recovery of lymphocyte subsets and the factors influencing this recovery are important variables that affect a patient's post-transplant immune reconstitution, and therefore require investigation.

Methods

The time taken to achieve lymphocyte subset recovery and the factors influencing this recovery were investigated...

Review Article
Treatment of high-risk neuroblastoma
Ki Woong Sung
Clin Exp Pediatr. 2012;55(4):115-120.   Published online April 30, 2012

Although high-dose chemotherapy and autologous stem cell transplantation (HDCT/autoSCT) have improved the prognosis for patients with high-risk neuroblastoma (NB), event-free survival rates remain in the range of 30 to 40%, which is unsatisfactory. To further improve outcomes, several clinical trials, including tandem HDCT/autoSCT, high-dose 131I-metaiodobenzylguanidine treatment, and immunotherapy with NB specific antibody, have been undertaken and pilot studies have reported...

Original Article
Hematopoietic stem cell transplantation in children with acute leukemia: similar outcomes in recipients of umbilical cord blood versus marrow or peripheral blood stem cells from related or unrelated donors
Eun Sang Yi, Soo Hyun Lee, Meong Hi Son, Ju Youn Kim, Eun Joo Cho, Su Jin Lim, Hee Won Cheuh, Keon Hee Yoo, Ki Woong Sung, Hong Hoe Koo
Clin Exp Pediatr. 2012;55(3):93-99.   Published online March 16, 2012
Purpose

This study compared outcomes in children with acute leukemia who underwent transplantations with umbilical cord blood (UCB), bone marrow, or peripheral blood stem cells from a human leukocyte antigen (HLA)-matched related donor (MRD) or an unrelated donor (URD).

Methods

This retrospective study included consecutive acute leukemia patients who underwent their first allogeneic hematopoietic stem cell transplantation (HSCT) at Samsung Medical Center between...

Case Report
Unrelated stem cell transplantation after reduced-intensity conditioning plus rituximab for Epstein-Barr virus-associated hemophagocytic lymphohistiocytosis with CNS involvement
Hee Jo Baek, Hoon Kook, Dong Kyun Han, Min-Cheol Lee, Tae Woong Jeong, Tai Ju Hwang
Clin Exp Pediatr. 2009;52(6):725-729.   Published online June 15, 2009
Epstein-Barr virus-associated hemophagocytic lymphohistiocytosis (EBV-HLH) with central nervous system (CNS) involvement is usually fatal unless stem cell transplant (SCT) is offered. However, SCT with conventional intensity conditioning is associated with high transplant-related mortality. We describe our experience with unrelated SCTs after reduced-intensity conditioning (RIC) for patients with EBV-HLH with progressive CNS disease. This approach was associated with minimal toxicities and...
Facial palsy as the presenting symptom of acute myeloid leukemia in children: Three cases with stem cell transplantatio
Hee Jo Baek, Dong Kyun Han, Young Ok Kim, Ic Sun Choi, Tai Ju Hwang, Hoon Kook
Clin Exp Pediatr. 2009;52(6):713-716.   Published online June 15, 2009
Facial palsy as the presenting symptom of leukemia is very rare, especially in acute myeloid leukemia. A review of the medical literature identified reports on 8 children with AML who had facial paralysis as the presenting sign. Whole brain irradiation (WBI) has been applied in most cases. We present the cases of 3 such children. Achieving a remission without WBI,...
Original Article
Distribution of CD4+CD25+ T cells and graft-versus-host disease in human hematopoietic stem cell transplantation
Dae Hyoung Lee, Nak Gyun Chung, Dae Chul Jeong, Bin Cho, Hack Ki Kim
Clin Exp Pediatr. 2008;51(12):1336-1341.   Published online December 15, 2008
Purpose : This study aimed to determine the frequencies of CD4+CD25+ T cells in donor graft and peripheral blood CD4+CD25+ T cells in recipients after hematopoietic stem cell transplantation (HSCT) and their association with graft-versus-host disease (GVHD). Methods : Seventeen children who underwent HSCT were investigated. CD4+CD25+ T cells in samples from donor grafts and recipient peripheral blood were assessed...
Clinical outcomes of hematopoietic stem cell transplantation from HLA-matched parental donor in childhood acute leukemia
Eun Young Cha, Moon Hee Lee, Jae Wook Lee, Young Joo Kwon, Dae Hyoung Lee, Young-Shil Park, Nak Gyun Chung, Dae Chul Jeong, Bin Cho, Hack Ki Kim
Clin Exp Pediatr. 2008;51(1):67-72.   Published online January 15, 2008
Purpose : In this study, we retrospectively analyzed the clinical outcomes of patients who underwent allogeneic hematopoietic stem cell transplantation (HSCT) grafted from HLA-matched parents. Methods : Seven children with acute leukemia (4 acute lymphoblastic leukemia, 3 acute myeloid leukemia) in first complete remission received allogeneic HSCT from their respective parents at the St. Marys Hospital between April, 1999 and October,...
Review Article
Hematopoietic stem cell transplantation : overview for general pediatrician
Tai Ju Hwang
Clin Exp Pediatr. 2007;50(7):613-621.   Published online July 15, 2007
Hematopoietic stem cell transplantation (HSCT) has expanded and evolved substantially in the last decades to treat various malignant and nonmalignant diseases. However, the conditioning regimen can lead to transplantation related death by major organ dysfunction, severe infection and bleeding. In the allogeneic setting, graft versus host disease may also develop, making post-transplant management complex. To overcome these problems, new stem...
Aplastic anemia
Hack Ki Kim
Clin Exp Pediatr. 2007;50(6):519-523.   Published online June 15, 2007
Aplastic anemia is a rare disease, which is characterized by pancytopenia and hypocellular bone marrow without infiltration of abnormal cells or fibrosis. The incidence in Asia is higher than in the West and new cases are diagnosed at a rate of 5.1 per million pediatric populations per year in Korea. The pathophysiology is understood roughly by defective hematopoiesis, impaired bone...
Original Article
Comparison of growth and neuropsychological function after treatment for hematologic and oncologic diseases in monozygotic twins
Gi Hwan Kim, Hoon Kook, Hee Jo Baek, Dong Kyun Han, Eun Song Song, Young Kook Jo, Ic Sun Choi, Young Ok Kim, Chan Jong Kim, Young Jong Woo, Soo Jin Yang
Clin Exp Pediatr. 2007;50(2):182-189.   Published online February 15, 2007
Purpose : The primary purpose of this study was to evaluate the growth and neuropsychologic function following treatments for pediatric hematologic and oncologic diseases. Healthy monozygotic twins served as ideal controls for comparison to exclude possible confounding factors. Methods : Seven children treated with various hematologic and oncologic diseases were included in the study: acute lymphoblastic leukemia (ALL; n=2), Diamond-Blackfan anemia...
Second allogeneic hematopoietic stem cell transplantation in children to overcome graft failure or relapse after initial transplant
Dong-Yeon Kim, Do Kyun Kim, Soo Young Kim, Seok Joo Kim, Dong Gyun Han, Hee Jo Baek, Hoon Kook, Tai-Ju Hwang
Clin Exp Pediatr. 2006;49(12):1329-1339.   Published online December 15, 2006
Purpose : Failure of hematopoietic stem cell transplantation(HSCT) may be encountered in practice because of either relapse of the malignancy or dysfunction of the graft. Second HSCT may be the only option for some patients whose initial HSCT failed. Methods : From May, 1991 to December, 2004, 115 HSCTs were performed at the Pediatric Blood & Marrow Transplantation Center, Chonnam National...
Short-term follow up of thyroid function after pediatric hematopoietic stem cell transplantation
Seon-Ju Lee, Jae-Wook Lee, Dae-Hyoung Lee, Young-Joo Kwon, Young-Shil Park, Hui Sung Hwang, Sun Young Kim, Ji Kyoung Park, Pil-Sang Jang, Min-Ho Jung, Nak-Gyun Chung, Dae-Chul Jeong, Bin Cho, Hack-Ki Kim, Byung-Churl Lee
Clin Exp Pediatr. 2006;49(11):1211-1215.   Published online November 15, 2006
Purpose : In this study, we analyzed the short term changes of thyroid function, incidence and risk factors of thyroid dysfunction soon after allogeneic hematopoietic stem cell transplantation (HSCT) in children. Methods : We enrolled 80 pediatric patients following allogeneic HSCT, at the Catholic HSCT center between January, 2004 and February, 2006. Serum TSH (thyroid stimulating hormone), total serum thyroxine and...
Factors affecting hematologic recovery and infection in high-dose chemotherapy and autologous stem cell transplantation in patients with high-risk solid tumor
Jung Hyun Lee, Bo Lyun Lee, Soo Hyun Lee, Keon Hee Yoo, Ki Woong Sung, Hye Lim Jung, Eun Joo Cho, Hong Hoe Koo
Clin Exp Pediatr. 2006;49(10):1079-1085.   Published online October 15, 2006
Purpose : The purpose of this study was to evaluate factors affecting hematologic recovery and infection in high-dose chemotherapy(HDCT) and autologous stem cell transplantation(ASCT) in patients with high-risk solid tumor. Methods : From January 2004 to December 2005, 72 HDCTs and ASCTs were applied to children with high-risk solid tumor at Samsung Medical Center. Medical records of these 72 HDCTs and...
CMV antigenemia following pediatric hematopoietic stem cell transplantation : risk factors and outcomes
Eun-Young Cho, Young-Shil Park, Dae-Hyung Lee, Ji Kyoung Park, Sangrhim Choi, Sun Young Kim, Pil-Sang Jang, Dong-Gun Lee, Nak-Gyun Chung, Jong Hyun Kim, Dae-Chul Jeong, Bin Cho, Jae Gyun Hur, Jin Han Kang, Hack-Ki Kim
Clin Exp Pediatr. 2006;49(2):173-180.   Published online February 15, 2006
Purpose : Cytomegalovirus(CMV) infection still remains as a major cause of morbidity and mortality after stem cell transplantation. In this study, we analyzed the results of antigenemia-guided pre- emptive therapy among children with allogeneic hematopoietic stem cell transplantation to determine the incidence and risk factors associated with CMV antigenemia, and evaluated the efficacy of the CMV antigenemia based preemptive therapy....
Allogeneic Hematopoietic Stem Cell Transplantation in Juvenile Myelomonocytic Leukemia
Keon Hee Yoo, Dong Kil You, Soo Hyun Lee, Ki Woong Sung, Eun Joo Cho, Hong Hoe Koo
Clin Exp Pediatr. 2005;48(2):178-185.   Published online February 15, 2005
Purpose : The purpose of this study was to evaluate the outcome of children with juvenile myelomonocytic leukemia(JMML) treated with allogeneic hematopoietic stem cell transplantation(allo- HSCT). Methods : Eleven JMML patients aged 8-39 months underwent allo-HSCT. The sources of grafts were unrelated donors(n=7), HLA-matched siblings(n=3) and an HLA 1-antigen mismatched familial donor. All patients had received chemotherapy ?13-cis-retinoic acid(CRA) before...
Neurologic Complications after Hematopoietic Stem Cell Transplantation in Children
Moon Young Jeong, Young Kuk Cho, So Youn Kim, Young Ok Kim, Chan Jong Kim, Hoon Kook, Young Jong Woo, Tai Ju Hwang
Clin Exp Pediatr. 2004;47(9):978-985.   Published online September 15, 2004
Purpose : Neurologic complications(NC) after hematopoietic stem cell transplantation(HSCT) are important because of high mortality and severe sequelae. We analyzed the incidence, manifestation and risk factors of NC in 61 children undergoing HSCT. Methods : We retrospectively analyzed NC in 61 cases(42 male and 19 female, aged one to 16 years) given HSCT between 1996 and 2003 due to hematologic malignacies,...
Short-term Results of Hematopoietic Stem Cell Transplantation for Children with Myelodysplastic Syndrome
Jin Lee, Soh Yeon Kim, Bin Cho, Pil Sang Jang, Nak Gyun Chung, Hack Ki Kim
Clin Exp Pediatr. 2002;45(3):370-375.   Published online March 15, 2002
Purpose : In most cases, myelodysplastic syndrome(MDS) transforms into a more aggressive state or acute myelogenous leukemia; it's prognosis is very poor. It is believed that hematopoietic stem cell transplantation(HSCT) is the only curative treatment of MDS, but available data in children are very sparse. In this report, the short term outcome of HSCT in childhood MDS was analyzed. Methods :...
The Correlation between CD34+ Cell and Nucleated RBC Counts in Human Cord Blood
Seong Man Lee, Kyu Chan Kim, Sang Woo Kim
Clin Exp Pediatr. 1996;39(10):1422-1428.   Published online October 15, 1996
Purpose : Human umbilical cord blood as a potential source of hematopoietic stem cell for stem cell transplantation in children has recently been advocated. Clinical application of cord blood transplantation, however, requires adequate blood volume and number of stem cells. Currently, the number of stem cells in the cord blood is usually measured by flowcytometry, which requires strict quality control and high costs. Here,...
Stem Cell Transplantation in Umbilical Cord Blood(II) Characteristics of T-Lymphocyte Subpopulation in Umbilical Cord Blood
Kyung Ha Ryu, So Young Ahn
Clin Exp Pediatr. 1995;38(6):819-826.   Published online June 15, 1995
Purpose : Homatopoietic stem cells, which have the ability to undergo self-renewal as well as to develop into multipotential differentiations, have been consistantly demonsteraten in human umbilical cord blood. Recently, there have been a few studies using the umbilical cord blood as a source of stem cell transplantation. However it remains unclear whether umbilical cord blood in safe with regards to...
Stem Cell Transplantation in Umbilical Cord Blood(I) Expansion Effects of Stem Cells in Umbilical Cord Blood with Various Hematopoietic Growth Factors
Kyung Ha Ryu, Myung Hee Chung
Clin Exp Pediatr. 1995;38(5):675-684.   Published online May 15, 1995
Stem cell transplantation is used for the patients lacking the capability of production of hem-atopoitic cells. Recently, there have been a few studies using the umbilical cord blood as a sou-rce of stem cells, however it remains unclear whether umhhilical cord blood contains sufficient amount to reconstitute the patient. Our study was designed to know that umbilical cord blood is proper...