Myeloablative Hematopoietic Stem Cell Transplantation with a Non-total Body Irradiation Regimen for Treating Pediatric Acute Lymphoblastic Leukemia / 임상소아혈액종양

BACKGROUND: Total body irradiation (TBI) has been traditionally used as a conditioning regimen prior to hematopoietic stem cell transplantation (HSCT) in patients with pediatric leukemia. However, TBI can cause late sequelae such as growth impairment, cataract, hormone abnormalities, infertility, neurocognitive effects, and secondary malignancy in pediatric patients. METHODS: This single center retrospective study included 22 patients with acute lymphoblastic leukemia who were aged <18 years and underwent HSCT between May 1999 and December 2014; seven patients received a TBI-based regimen and 15 received a non-TBI regimen. RESULTS: The overall survival and event-free survival rates in the TBI group were not significantly different from those in the non-TBI group (overall survival rate 71% vs. 73%, respectively; P=0.906; event-free survival rate 71% vs. 73%, respectively P=0.923). CONCLUSION: Our results indicate that non-TBI conditioning regimens can be an alternative treatment option of the treatment of pediatric acute lymphoblastic leukemia undergoing HSCT.

Voriconazole plus caspofungin for treatment of invasive fungal infection in children with acute leukemia

BACKGROUND: Invasive fungal infections (IFIs) are a life-threatening problem in immunocompromised patients. Despite timely diagnosis and appropriate antifungal therapy, clinical outcomes of IFIs remain unsatisfactory, necessitating treatment with a combination of antifungal agents. Therefore, childhood leukemic patients treated with voriconazole plus caspofungin were evaluated for the safety and efficacy of the combination antifungal therapy to treat IFIs. METHODS: In this retrospective study, medical records were retrieved for patients admitted to the Pediatric Department of Yeungnam University Hospital, Daegu, South Korea, between April 2009 and May 2013. Medical records of 22 patients were analyzed. RESULTS: Of the 22 patients studied, nine (41%) had been diagnosed with probable IFI, and 13 (59%) with possible IFI. All patients, except one, were already receiving antifungal monotherapy for the treatment of neutropenic fever. After a diagnosis of IFI was confirmed, antifungal monotherapy was replaced with combination therapy. The study's overall response rate was 90.9%, with complete responses in 86.3% of the patients. Two patients experienced a side effect of a small increase in liver enzyme levels. CONCLUSION: Voriconazole plus caspofungin combination therapy is an effective and safe treatment for serious IFI in pediatric patients with acute leukemia.

Myeloablative Hematopoietic Stem Cell Transplantation with a Non-total Body Irradiation Regimen for Treating Pediatric Acute Lymphoblastic Leukemia / 임상소아혈액종양

BACKGROUND: Total body irradiation (TBI) has been traditionally used as a conditioning regimen prior to hematopoietic stem cell transplantation (HSCT) in patients with pediatric leukemia. However, TBI can cause late sequelae such as growth impairment, cataract, hormone abnormalities, infertility, neurocognitive effects, and secondary malignancy in pediatric patients.METHODS: This single center retrospective study included 22 patients with acute lymphoblastic leukemia who were aged <18 years and underwent HSCT between May 1999 and December 2014; seven patients received a TBI-based regimen and 15 received a non-TBI regimen.RESULTS: The overall survival and event-free survival rates in the TBI group were not significantly different from those in the non-TBI group (overall survival rate 71% vs. 73%, respectively; P=0.906; event-free survival rate 71% vs. 73%, respectively P=0.923).CONCLUSION: Our results indicate that non-TBI conditioning regimens can be an alternative treatment option of the treatment of pediatric acute lymphoblastic leukemia undergoing HSCT.

A Case of Dasatinib-Induced Nephrotic Syndrome in a Child with Philadelphia Chromosome Positive Acute Lymphoblastic Leukemia

No abstract available.