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1.
Childhood Kidney Diseases ; : 117-121, 2021.
Article in English | WPRIM | ID: wpr-913883

ABSTRACT

Chronic kidney disease (CKD)-mineral and bone disorder (CKD-MBD) is a common complication of CKD, often accompanied by extra-skeletal calcification in adult patients. As increased vascular calcification is predicted to increase cardiovascular mortality and morbidity, the revised Kidney Disease: Improving Global Outcomes guidelines recommend avoiding calcium-containing phosphate chelators. However, extra-skeletal calcification is less commonly noticed in pediatric patients. Here, we report our experience of such a complication in pediatric patients receiving maintenance peritoneal dialysis. Extra-skeletal calcification was noticed at the corneas, pelvic cavity, and soft tissues of the lower leg in 4 out of 32 patients on maintenance peritoneal dialysis. These patients experienced the aggravation of extra-skeletal calcifications during peritoneal dialysis, and 2 of them underwent excisional operations. It is required to monitor extra-skeletal calcifications in children on kidney replacement therapy.

2.
Article | WPRIM | ID: wpr-835181

ABSTRACT

Objective@#To compare short- and long-term dentoalveolar, skeletal, and rotational changes evaluated by Björk’s structural method of superimposition between children with Class II malocclusion treated by functional appliances and untreated matched controls. @*Methods@#Seventy-nine prepubertal or pubertal children (mean age, 11.57 ± 1.40 years) with Class II malocclusion were included. Thirty-four children were treated using an activator with a high-pull headgear (Z-activator), while 28 were treated using an activator without a headgear (E-activator). Seventeen untreated children were included as controls. Lateral cephalograms were obtained before treatment (T1), after functional appliance treatment (T2), and after retention in the postpubertal phase (T3). Changes from T1 to T2 and T1 to T3 were compared between the treated groups and control group using multiple linear regression analysis. @*Results@#Relative to the findings in the control group at T2, the sagittal jaw relationship (subspinalenasion- pogonion, p < 0.001), maxillary prognathism (sella-nasion-subspinale, p < 0.05), and condylar growth (p < 0.001) exhibited significant improvements in the Z- and E-activator groups, which also showed a significantly increased maxillary incisor retraction (p < 0.001) and decreased overjet (p < 0.001). Only the E-activator group exhibited significant backward rotation of the maxilla at T2 (p < 0.01). The improvements in the sagittal jaw relationship (p < 0.01) and dental relationship (p < 0.001) remained significant at T3. Condylar growth and jaw rotations were not significant at T3. @*Conclusions@#Functional appliance treatment in children with Class II malocclusion can significantly improve the sagittal jaw relationship and dental relationships in the long term.

3.
Article in Korean | WPRIM | ID: wpr-123564

ABSTRACT

Hemophagocytic lymphohistiocytosis (HLH), associated with acute myelocytic leukemia (AML), is a very rare disease. We here report a case of HLH occurring after induction chemotherapy for AML. AML-associated HLH can be triggered by AML itself, by chemotherapeutic agents, or by infectious complications. Our patient developed a high-grade fever of unknown cause, bilateral pulmonary infiltrates, and shock after successful treatment of AML with induction chemotherapy, and had high serum ferritin, hypertriglyceridemia, hypofibrinogenemia, hemophagocytic histiocytes in bone marrow, low natural killer cell activity, and elevated soluble interleukin-2 receptor levels. A diagnosis of HLH was made. Dexamethasone, cyclosporine, and etoposide were given and allogeneic hematopoietic stem cell transplantation was performed. Careful suspicion of HLH may be warranted if a patient experiences fever of unknown etiology, high ferritin levels, and liver dysfunction during AML treatment.


Subject(s)
Bone Marrow , Cyclosporine , Dexamethasone , Diagnosis , Etoposide , Ferritins , Fever , Hematopoietic Stem Cell Transplantation , Histiocytes , Humans , Hypertriglyceridemia , Induction Chemotherapy , Interleukin-2 , Killer Cells, Natural , Leukemia, Myeloid, Acute , Liver Diseases , Lymphohistiocytosis, Hemophagocytic , Rare Diseases , Shock
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