Severe hypernatremic dehydration in a breast-fed neonate / 소아과

Although it is a rare condition, breast-feeding may result in hypernatremic dehydration. However, incidences might be increasing with more mothers breast-feeding. Although the early detection and management of hypernatremic dehydration from breast-feeding is important, its prevention is even more important on account of its serious complications. In order to prevent hypernatremic dehydration secondary to breast-feeding, it is essential to educate mothers in successful breast-feeding methods. An early follow-up after discharge is recommended. We report a case of hypernatremic dehydration secondary to breast-feeding in a full-term newborn that was corrected without any complications.

The Prevalence of Obesity, Serum Lipid Levels and Age at Menarche in Adolescent Female Athletes / 소아과

PURPOSE: The aim of this study is to find the prevalence of obesity, the serum lipid levels and the age at menarche in adolescent female athletes and to examine the effects of exercise in adolescent stage. METHODS: With a questionnaire regarding their age at menarche, physical measurement, body fat, and blood samples of the serum lipid levels to evaluate the hyperlipidemia were obtained from adolescent female athletes(n=107) and general adolescent students(n=650) who didn't exercise at regular intervals, aged 12 to 18 years. RESULTS: The mean weight in the athletes' group was 53.3+/-7.3 kg, which was similar with 54.3+/-8.0 kg in the control group. The mean height in the athletes' group was 161.4+/-5.4 cm, which was taller than 158.9+/-5.3 cm in the control group. The prevalence of obesity by obesity index, body fat, and BMI in the athletes' group were significantly lower than in control group. There was no significant difference in age at menarche between two groups(12.6+/-1.3, 12.9+/-1.2). The levels of cholesterol, LDL cholesterol, and HDL cholesterol in the athletes' group were higher than in the control group. The levels of triglyceride in the athletes' group was lower than in control group. CONCLUSION: These data suggest the importance of exercise in adolescents for the prevention of obesity since it may reduce body fat and increase the height. There was no negative effect of exercise on the age at menarche. We think that more controlled assessment of nutrition, diet habit, hormonal effect and height are warranted to find the correlation with hyperlipidemia and exercise at the adolescent stage.

A Case of Pyomyositis and Toxic Shock Syndrome Caused by Methicillin Resistant Staphylococcus aureus / 소아과

Pyomysitis is a primary acute bacterial infection of large skeletal muscule, usually occuring in the absence of specific cause of infection. Pyomyositis has been reported mainly in tropical countries and was rare in temperate climates. but it has been recognized with increasing frequency. Toxic shock syndrome(TSS) is an acute mutisystemic disease characterized by high fever, hypotension, multisystem dysfunction and erythematous rash followed by skin desquamation 8-12 days after onset. Especially, TSS and pyomyositis are rare conditions in the pediatric population. We experienced one case in a healthy 13-year-girl who developed pyomyositis of the right ileac and gluteal muscles associated with TSS caused by methicillin resistant Staphylococcus aureus. We reports a case of acute pyomyositis with TSS, in which the diagnosis was difficult because of the relative rare incidence in temperate climates and its vague symptoms. To our knowledge, this is the first reported case of pyomyositis with TSS in Korean pediatric population.

Iron Deficiency Anemia and Iron Nutrition in Adolescent Female Athletes / 소아과

PURPOSE: Iron deficiency, particularly iron deficiency anemia(IDA) often not only decreases athletic performance but also impairs immune function and leads to other physiologic dysfunctions. This study was designed to assess and compare iron status and the IDA prevalence in female adolescent athletes with those of general adolescent students. METHODS: Physical measurements and hematologic examinations were performed for adolescent female runners(n=32), non-runner athletes(n=78) and apparently healthy students(n=511). Iron deficiency was defined as a serum ferritin concentration <12 ng/mL. The diagnosis of IDA was established when hemoglobin level <12 g/dL was associated with ferritin <12 ng/mL and/or transferrin saturation <16%. RESULTS: The prevalence of ID in the runners' group(40.6%) was significantly higher than that of the non-runner athletes' group(23.1%) and the control group(25.4%). The prevalence of IDA in the runners' group was 31.3%, which was significantly higher than that of the non-runners' group and the control group(7.7% and 16.4%, respectively). CONCLUSION: The prevalence of IDA of Korean adolescent females was relatively high, especially, in female adolescent runners. Screening for anemia and iron status is warranted. It is important to measure for iron nutrition and to enforce effective nutritional education in these groups.