Epidemiology of allergic rhinitis in Korean children

PURPOSE: The diagnosis of allergic rhinitis (AR) is based upon the concordance between a history of allergic symptoms and diagnostic tests. This study is to investigate the epidemiology of AR by using data from National Health Insurance Corporation (NHIC) and data according to the AR definition in general students health screening. METHODS: We examined medical insurance claims data of NHIC from 2004 to 2010 according to age, area, and gender. We investigated the results of Korean International Study of Asthma and Allergies in Childhood questionnaires and skin prick tests of 14,133 students participated in health screening from 2010 to 2012. RESULTS: The prevalence of AR according to the NHIC data was elementary school students (24.34%); middle school students (13.75%) and high school students (12.17%). The prevalence of AR was higher in boy than in girl, annually. In health screening, the prevalence of AR was elementary school students (19.50%+/-0.26); middle school students (23.19%+/-0.30) and high school students (24.11%+/-0.31). The prevalence of AR had peaking at the age late teens (P<0.0001) and was higher in boy (26.49%+/-0.38) than in girl (17.43%+/-0.35) (P<0.0001). Sensitization rate of allergen in students with AR was house dust mite (86.71%+/-0.48); pollen (41.26%+/-1.01) and molds (14.80%+/-0.52). CONCLUSION: The prevalence according to the AR definition tended to be increased with aging in Korean children. There are some differences in the prevalence of AR in the data of NHIC and health screening study. Further investigation will be needed to reveal the causes of this difference.

Chronic pulmonary complications due to toxic epidermal necrolysis

Toxic epidermal necrolysis (TEN) is the most severe form of skin reactions caused by drugs or infection. Acute pulmonary complications in TEN are often observed. The mortality is especially high in those who suffer chronic pulmonary complications of TEN such as bronchiolitis obliterance, which occur as a consequence of bronchial epithelial injury. We report a case of a 16-year-old male who had required mechanical ventilation due to acute respiratory distress syndrome caused by TEN at 8 years of age. Although the patient initially recovered from acute respiratory distress syndrome, he required mechanical ventilation again due to severe chronic pulmonary complications of bronchiolitis obliterance and bronchiectasis caused by respiratory epithelial detachment. Thereafter, chronic bronchitis and chronic sinusitis has persisted due to mucosal ciliary dysfunction and several episodes of spontaneous pneumothorax has occurred. However, despite these persisting and serious sequelae of TEN, the patient has survived for 8 years. We report a rare case of a patient with long-term chronic pulmonary complications who had previously suffered TEN 8 years ago.

The Chracteristics of Hypoxic Ischemic Encephalopathy with Seizures in Children

PURPOSE: This study was aimed to evaluate the clinical features of hypoxic ischemic encephalopathy(HIE) in children with and without seizures. METHODS: Fifty five children who had been diagnosed as HIE at Inha University Hospital from June 1999 to December 2011 were enrolled in this study. Subjects were divided into two groups by the presence of seizures and their medical records were retrospectively analyzed. RESULTS: Among the 55 cases, 34 patients (61.8%) had seizures, while 17 patients (32.2%) did not have them. Male to female ratio was 1:1 for the 'seizure' group and 2.5:1 for the 'no seizure' group. The onset age was 9.7 months (range: 0-158 months) for the 'seizure' group and 10 months (range : 0-108 months) for the 'no seizure' group. The most common risk factor was birth asphyxia (17.7%) for the 'seizure' group, and prematurity (23.8%) for the 'no seizure' group. The most common symptom other than seizure was respiratory arrest for both groups. On radiologic imaging studies of the brain, main causative lesion was most commonly observed in the cerebral cortex in both groups. The neurologic deficits or death were detected in 67.7% of the 'seizure' group, and 76.3% of the 'no seizure' group. There were no statistically significant differences in risk factors between the two groups. CONCLUSION: Although the characteristics between patients with and without seizures from HIE revealed no significant differences, HIE still can result in death or permanent disability in children. Therefore, permanent brain damage may be minimized by early suspicion and treatment in these patients.

Insulin Self-injection in School by Children with Type 1 Diabetes Mellitus

PURPOSE: Patients with type 1 diabetes have difficulty controlling diabetes during adolescence. Active self-management of diabetes in school during adolescence is essential for type 1 diabetic adolescents to successfully adapt to school and shift toward a healthy adulthood. This research examined insulin self-injection in school by diabetic adolescents and the correlation between the control of blood sugar and school adaptation. METHOD: Forty adolescents (aged 10-18 years) who were receiving care for type 1 diabetes in pediatric divisions of two university hospitals in the Incheon and Bucheon area from July 2011 to May 2012 were surveyed. RESULTS: Of the intense insulin treatment group (33/40), self-administration of insulin took place outside (22/33, 67%) and inside (11/33, 33%) restrooms. There was no significant difference in hemoglobin A1c between the two groups (P=0.7). 60% of those that had self-injected themselves within the restroom had not exposed their diabetes with more than 5 friends, while only 23% of those that had self-injected themselves outside the restroom had not exposed their diabetes with more than 5 friends, showing statistic significance between the two groups (P=0.02). There was also a significant difference in the frequency of experiencing depression: 91% for the group with self-injection in the restroom and 45% for the group with self-injection outside the restroom (P=0.02). CONCLUSION: Thirty-three percent of diabetic adolescents administered insulin in the restroom. These diabetic adolescents were reluctant to discuss the disease with others and had a higher frequency of experiencing depression. Thus, schools need to provide active support and care for students with type 1 diabetes.