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author:("him, Thad")
1.  Cross-Cultural Adaptation of the Korean Version of the Minneapolis-Manchester Quality of Life Instrument-Adolescent Form 
Journal of Korean Medical Science  2013;28(12):1788-1795.
We verified the reliability and validity of the Korean version of the Minneapolis-Manchester Quality of Life Instrument-Adolescent Form (KMMQL-AF) among Korean childhood cancer survivors. A total of 107 childhood cancer patients undergoing cancer treatment and 98 childhood cancer survivors who completed cancer treatment were recruited. To assess the internal structure of the KMMQL-AF, we performed multi-trait scaling analyses and exploratory factor analysis. Additionally, we compared each domains of the KMMQL-AF with those of the Karnofsky Performance Status Scale and the Revised Children's Manifest Anxiety Scale (RCMAS). Internal consistency of the KMMQL-AF was sufficient (Cronbach's alpha: 0.78-0.92). In multi-trait scaling analyses, the KMMQL-AF showed sufficient construct validity. The "physical functioning" domain showed moderate correlation with Karnofsky scores and the "psychological functioning" domain showed moderate-to-high correlation with the RCMAS. The KMMQL-AF discriminated between subgroups of different adolescent cancer survivors depending on treatment completion. The KMMQL-AF is a sufficiently reliable and valid instrument for measuring quality of life among Korean childhood cancer survivors.
doi:10.3346/jkms.2013.28.12.1788
PMCID: PMC3857376  PMID: 24339710
Quality of Life; Questionnaires; Validation Studies; Child Psychology; Neoplasms; Survivors
2.  Improved outcome in childhood ALL with intensive consolidation and hematopoietic stem cell transplant 
The Korean Journal of Hematology  2010;45(2):109-114.
Background
Despite advances in chemotherapy, the prognosis of relapsed acute lymphoblastic leukemia (ALL) remains poor. Few studies on relapsed ALL have reported the importance of intensive consolidation followed with or without allogeneic hematopoietic stem cell transplantation (HSCT).
Methods
We evaluated the post-relapse outcomes in 47 Korean children with a first marrow relapse, and analyzed the prognostic factors.
Results
A second complete remission (CR) was achieved in 40 patients (85.1%), and at the time of this study, second CR was maintained in 12 of these patients. The estimated 3-yr event-free survival (EFS) rate after the first marrow relapse was 29.8±6.7%, and the overall survival (OS) rate was 45.3±7.5%. We found that second remission, consolidation of pediatric oncology group chemotherapy regimen (POG 9411), and HSCT significantly affected the outcome of the disease after relapse (P<0.001; P=0.004; P=0.05).
Conclusion
The results of our study revealed that an intensified POG 9411 consolidation chemotherapy regimen followed by HSCT can improve the outcome of patients with relapsed ALL.
doi:10.5045/kjh.2010.45.2.109
PMCID: PMC2983016  PMID: 21120189
Acute lymphoblastic leukemia; Relapse; Intensive consolidation; Hematopoietic stem cell transplantation
3.  Time to establish multidisciplinary childhood cancer survivorship programs in Korea 
Improved treatment strategies and better supportive care have resulted in increased survival rates for childhood cancers. However, most of the survivors may have complex, long-term health issues. In 2004, Childhood Cancer Survivorship Study of the United States confirmed that both survivors and the medical community need to be educated about the late effects of childhood cancer treatment. Korea, with an estimated number of childhood cancer survivors of 20,000 to 25,000, faces similar challenges that the United States had experienced earlier. Despite of the tight budgetary situation on the part of government and hospitals, nationwide cohort study for Korean childhood cancer survivors was proposed and the versions of instruments to measure the quality of life of childhood cancer survivors were already validated. Nationwide registry of long-term survivors as well as the multi-center study is to be developed not only for the care of the survivors but also to raise the patient's awareness of the importance of regular follow-up. In addition to education of primary care providers regarding the survivorship, the need for special education program in the school system is emphasized.
doi:10.5045/kjh.2010.45.2.84
PMCID: PMC2983029  PMID: 21120183
4.  Normalization of Red Cell Enolase Level Following Allogeneic Bone Marrow Transplantation in a Child with Diamond-Blackfan Anemia 
Journal of Korean Medical Science  2010;25(4):626-629.
We describe a girl with Diamond-Blackfan anemia with accompanying red cell enolase deficiency. At the age of 9 yr old, the patient received allogeneic bone marrow transplantation from her HLA-identical sister who had normal red cell enolase activity. While the post transplant DNA analysis with short tandem repeat has continuously demonstrated a stable mixed chimerism on follow-up, the patient remains transfusion independent and continues to show a steady increase in red cell enolase activity for over two and a half years following bone marrow transplantation.
doi:10.3346/jkms.2010.25.4.626
PMCID: PMC2844588  PMID: 20358009
Anemia, Diamond-Blackfan; Erythrocyte Enzyme Deficiency; Red Cell Enolase Deficiency; Bone Marrow Transplantation
5.  Prophylactic Low-dose Heparin or Prostaglandin E1 may Prevent Severe Veno-occlusive Disease of the Liver after Allogeneic Hematopoietic Stem Cell Transplantation in Korean Children 
Journal of Korean Medical Science  2006;21(5):897-903.
Studies investigating the effect of prophylactic drugs on hepatic veno-occlusive disease (VOD) development are rare in children that have undergone allogeneic hematopoietic stem cell transplantation (HSCT). This study examined risk factors for VOD, the effect of prophylactic low-dose heparin or lipo-prostaglandin E1 (lipo-PGE1) and the survival rate at day +100 in children undergoing allogeneic HSCT. Eighty five children underwent HSCT between June 1997 and September 2004. Patients were diagnosed and classified as having mild, moderate or severe VOD according to Seattle clinical criteria. Among 85 patients, 25 (29%) developed VOD. VOD occurred more frequently in patients receiving busulfan-based conditioning (24/65, 37%) than in those receiving TBI-based (1/10, 10%) or other (0/10, 0%) regimens (p<0.05). The incidence of VOD was lower in patients with non-malignant disease compared to those with malignant disease (p<0.05). Survival at day +100 for non-VOD patients was better than that for VOD patients (92% vs. 76%, p<0.05). No patients receiving prophylactic heparin or lipo-PGE1 were found to develop severe VOD, whereas 5 of 35 patients not receiving such prophylaxis developed severe VOD. Given severe VOD is associated with a high mortality rate, this study indicates that prophylactic heparin or lipo-PGE1 may decrease mortality in children undergoing HSCT.
doi:10.3346/jkms.2006.21.5.897
PMCID: PMC2722002  PMID: 17043426
Hepatic Veno-occlusive Disease; Heparin; Prostaglandins; prevention and control; Prophylaxis; Hematopoietic Stem Cell Transplantation; Child
6.  Prognostic Significance of Multidrug Resistance Gene 1 (MDR1), Multidrug Resistance-related Protein (MRP) and Lung Resistance Protein (LRP) mRNA Expression in Acute Leukemia 
Journal of Korean Medical Science  2006;21(2):253-258.
The prognostic significance of multidrug resistance (MDR) gene expression is controversial. We investigated whether multidrug resistance gene 1 (MDR1), multidrug resistance-related protein (MRP) and lung resistance protein (LRP) mRNA expression are associated with outcomes in acute leukemia patients. At diagnosis we examined MDR1, MRP and LRP mRNA expression in bone marrow samples from 71 acute leukemia patients (39 myeloid, 32 lymphoblastic) using nested RT-PCR. The expression of each of these genes was then expressed as a ratio in relation to β-actin gene expression, and the three genes were categorized as being either 0, 1+, 2+ or 3+. MDR1, MRP and LRP mRNA expression was detected in 23.9%, 83.1% and 45.1%, respectively. LRP mRNA expression was significantly associated with resistance to induction chemotherapy in acute leukemia patients, and in the AML proportion (p=0.02 and p=0.03, respectively). MRP and high MDR1 mRNA expression was associated with poorer 2-yr survival (p=0.049 and p=0.04, respectively). Patients expressing both MRP and LRP mRNA had poorer outcomes and had worse 2-yr survival. The present data suggest that MDR expression affects complete remission and survival rates in acute leukemia patients. Thus, determination of MDR gene expression at diagnosis appears likely to provide useful prognostic information for acute leukemia patients.
doi:10.3346/jkms.2006.21.2.253
PMCID: PMC2734000  PMID: 16614510
Genes, MDR; Multidrug Resistance Gene 1; P-Glycoprotein Multidrug Resistance-related Protein 1; lung resistance protein; Prognosis; Leukemia
7.  Autologous stem cell transplantation for the treatment of neuroblastoma in Korea. 
Journal of Korean Medical Science  2003;18(2):242-247.
Autologous stem cell transplantation (ASCT) for the treatment of high-risk neuroblastoma (NBL) is an accepted method for restoring bone marrow depression after high dose chemotherapy. We retrospectively analyzed eighty eight cases of NBL that underwent ASCT following marrow ablative therapy at 12 transplant centers of the Korean Society of Pediatric Hematology-Oncology between January 1996 and September 2000. Seventy nine children were of stage IV NBL and 9 were of stage III with N-myc amplification. Various cytoreductive regimens were used. However, the main regimen was 'CEM' consisting of carboplatin, etoposide and melphalan, and this was used in 66 patients. Total body irradiation was also added in 36 patients for myeloablation. To reduce tumor cell contamination, stem cell infusions after CD34+ cell selection were performed in 16 patients. Post-transplantation therapies included the second transplantation in 18 patients, interleukin2 therapy in 45, 13-cis retinoic acid in 40, 131-meta-iodobenzylguanidine in 4, conventional chemotherapy in 11, and local radiotherapy in 8. Twenty two patients died, sixty six patients are surviving 1 to 46 months after ASCT (median followup duration, 14.5 months). Although the follow-up period was short and the number of patients small, we believe that ASCT might improve the survival rate in high-risk NBL.
PMCID: PMC3055035  PMID: 12692423

Results 1-7 (7)