PURPOSE: Korean children have their own unique lifestyle based on their living environment and culture. This study aimed to develop a questionnaire to evaluate the quality of life in Korean children with allergic rhinitis. METHODS: After a preliminary survey, an initial questionnaire was developed. Questions were modified to be easily understood by young children aged 6 to 7 years. The modified questionnaire was tested on children aged 6 to 12 years old. Item scores, defined as the proportion of children whose answer score was 1 point or higher was multiplied by the average answer score of each question, were used to identify questions that have practical application to the quality of life in Korean children with allergic rhinitis. Differences in answer scores between children with allergic rhinitis and those who were healthy were assessed by a Wilcoxon rank-sum test. The relationship between nasal index scores and quality of life scores was determined by a Spearman rank order test. RESULTS: An initial questionnaire was composed of 21 items. We identified 19 questions with item scores above 0.5 in children with allergic rhinitis, many of which were related to nasal symptoms and 10 questions that were different between the allergic rhinitis group and the control group. The final questionnaire included the 10 questions that had both high item scores and a significant difference in the answer scores between the two groups. CONCLUSIONS: The developed questionnaire is essential and practical for assessing discomfort related to the symptoms felt by Korean children with allergic rhinitis.
Child* ; Humans ; Life Style ; Quality of Life* ; Rhinitis* ; Surveys and Questionnaires

PURPOSE: We investigated the risk factors related to the development and aggravation of allergic rhinitis, which is associated with residential environment and lifestyle habits of children residing in Incheon. METHODS: A total of 182 children diagnosed with moderate to severe allergic rhinitis and 67 healthy children were enrolled. A detailed questionnaire of the environmental characteristics and the dietary habits were completed by the parents. Further, skin prick tests with 14 common allergens were performed. RESULTS: The mean age of the children with allergic rhinitis and healthy control was 8.2+/-2.8 and 9.4+/-2.0 years, respectively. The presence of indoor mold was associated with an increased risk of development of allergic rhinitis. (adjusted odds ratio [aOR], 4.26; 95% confidence interval [CI], 1.96-9.27) Among the food groups, there was no significant difference of the daily intake of milk and yogurt between the patients and the controls. However, daily intake of vegetables, except Kimchi, and daily intake of fruits or fruit juice were associated with a decreased risk of allergic rhinitis. (aOR, 0.43; 95% CI, 0.20-0.92 / aOR, 0.43; 95% CI, 0.13-0.90, respectively) CONCLUSION: The results indicate that an indoor dampness is one of the risk factors of development and aggravation of allergic rhinitis. Control of indoor humidity and daily intake of fruits and vegetables can prevent the development and control symptoms of allergic rhinitis.
Allergens ; Child ; Diet ; Food Habits ; Fruit ; Fungi ; Humans ; Humidity ; Life Style ; Milk ; Odds Ratio ; Parents ; Surveys and Questionnaires ; Rhinitis ; Rhinitis, Allergic, Perennial ; Risk Factors ; Skin ; Vegetables ; Yogurt

Asthma is a chronic disease associated with airway constriction due to inflammation caused by eosinophils, mast cells, and T lymphocytes, leading to serious chronic illness in children. The eotaxin gene family has been shown to play an important role in the pathogenesis of asthma. We hypothesized that the distinctive variations among the four seasons in Korea may affect the expression of eotaxin polymorphisms, especially in children. We examined the possible effects of birth season (spring, March-May; summer, June-August; fall, September-November; and winter, December-February) on the phenotype of asthma in children. All SNP data sets of the eotaxin-2 and eotaxin-3 genes were collected from 78 asthma patients and 101 controls. Here, we investigated the effects of birth season on the expression of eotaxin-2 and eotaxin-3 in Korean children. Using the HAPLOTYPE procedure with the HTR method in SAS/Genetics, we showed that children born in spring and summer show significant haplotypes in both the eotaxin-2 and eotaxin-3 genes. Thus, the expression of polymorphisms in eotaxin-2 and eotaxin-3 may vary by season.
Asthma ; Chemokine CCL24 ; Child ; Chronic Disease ; Constriction ; Eosinophils ; Haplotypes ; Humans ; Inflammation ; Korea ; Mast Cells ; Parturition ; Phenotype ; Seasons ; T-Lymphocytes

It is known that early childhood wheezing associated with sensitization to allergens, including food, has an increased risk of developing asthma later during school age. Gastroesophageal reflux (GER) is well known to be associated with asthma. The purpose of this study was to determine whether there is an association between silent GER and food sensitization in infants and young children with recurrent wheezing. Eighty-five infants or young children with recurrent wheezing, and no gastrointestinal symptoms, underwent 24 hr esophageal pH monitoring, as well as total serum IgE and specific IgE testing for eggs and milk. Among the 85 subjects, 48.2% had significant GER. There was no significant difference in the GER between atopic and non-atopic recurrent wheezers (41.7% and 50.8%, respectively). The sensitization rate to food (eggs or milk) was 12.2% and 20.5% in the GER and non-GER groups, respectively and showed no statistically significant difference between the two groups (P=0.34). In conclusion, about half of infants and young children with recurrent wheezing and no gastrointestinal symptoms have silent GER. The silent GER may not contribute to food sensitization in infants and young children with recurrent wheezing.
Allergens/immunology ; Child, Preschool ; Esophageal pH Monitoring ; Female ; *Food Hypersensitivity/etiology/immunology ; *Gastroesophageal Reflux/complications/immunology ; Humans ; Infant ; Male ; *Respiratory Sounds/etiology/immunology

PURPOSE: This study was designed to investigate the characteristics of infants with recurrent or persistent wheezing who present normal chest X-ray. METHODS: Nonfebrile infants with recurrent or persistent wheezing who revealed normal or only peribronchial infiltration on chest X-rays were enrolled. All infants divided into 2 groups by CT findings: The bronchiolitis or asthma group (hyperinflation or peribronchial wall thickening) and the aspiration pneumonia group (air space consolidation). RESULTS: The subjects were 30 infants (26 males and 4 females). Their mean age was 6.5+/-3.51 months. CT findings revealed no congenital abnormalities of the airways. There were 22 patients (73.3%) in the bronchiolitis or asthma group and 8 patients (26.3%) in the aspiration pneumonia group. There was no difference in the levels of total IgE and serum eosinophil cationic proteins between the 2 groups (33.9+/-36.78 vs. 39.03+/-39.98/30.87+/-34.73 vs. 48.85+/-44.59, P>0.05). However, the concentration of peripheral eosinophils was significantly higher in the bronchiolitis or asthma group than that of the aspiration pneumonia group (272+/-191.03 vs. 92.25+/-79.33, P=0.012). The results of 24-hr pH monitoring did not show any difference between the 2 groups. During follow-up, 9 of the 20 in the bronchiolitis or asthma group and 4 of the 8 patients in the aspiration pneumonia group were diagnosed with infantile asthma. CONCLUSION: Aspiration pneumonia should be considered in infants presenting with recurrent or persistent wheezing who show normal X-ray without elevated levels of peripheral eosinophils.
Asthma ; Bronchiolitis ; Congenital Abnormalities ; Eosinophil Cationic Protein ; Eosinophils ; Follow-Up Studies ; Humans ; Hydrogen-Ion Concentration ; Immunoglobulin E ; Infant ; Male ; Pneumonia, Aspiration ; Respiratory Sounds ; Thorax

PURPOSE: Some patients develop side effects from theophylline even at low serum concentrations. We designed a prospective study to evaluate the side effects of theophylline. METHODS: A Prospective, controlled trial study was conducted. The low-dose group received an intravenous continuous aminophylline dose of 5 mg/kg/day on the first day and subsequently 10 mg/kg/day on the following two days. The usual-dose group received 10 mg/kg/day for three days and the control group received normal saline for three days. Heart rate, respiratory rate, serum concentration of theophylline, and four adverse events (irritability, sleep disturbance, jitter, and vomiting) were checked at the time of admission and at 2, 12, 24, 48, and 72 h after the start of aminophylline infusions. RESULTS: Nine patients out of 37 in the low-dose group and six of 21 in the usual-dose group dropped out because of uncontrolled irritability. The serum concentrations of theophylline in dropouts (3.68+/-1.93 ig/mL) and participants (4.47+/-2.45 ig/mL) were not significantly different. Irritability was a more frequent side effect in the usual-dose group at 12 h, but there was no difference between the low-dose and usual-dose groups in terms of vomiting, sleep disturbance, and jitter. Most of the severe adverse effects were observed in children below two years of age. CONCLUSION: Some patients dropped out regardless of the initiating aminophylline dose, especially patients under the age of two years.
Aminophylline ; Asthma ; Child ; Heart Rate ; Humans ; Patient Dropouts ; Prospective Studies ; Respiratory Rate ; Theophylline ; Vomiting

BACKGROUND: This study examined whether defects in insulin secretion contribute to the development and progression of type 2 diabetes mellitus (T2DM). METHDOS: Plasma insulin and glucose were measured after a glucose tolerance test to calculate the insulinogenic index (IGI) and the HOMA-IR Homeostasis model assessment of insulin resistance in subjects with normal glucose tolerance (NGT), prediabetes (preDM, n=49), and T2DM patients with disease duration <1 year (n=84), 1~5 years (n=45), or >5 years (n=37). Plasma proinsulin and adiponectin levels were also measured as a parameter of insulin secretion and resistance. RESULTS: The mean HOMA-IR increased and the adiponectin levels decreased relative to the deterioration of glucose tolerance in NGT and preDM subjects. However, differences in the HOMA-IR were not related to disease duration in T2DM subjects. The mean IGI was similar in NGT and preDM subjects, but there were significant deteriorations in IGI relative to the duration of diabetes. CONCLUSIONS: Defects in both insulin sensitivity and insulin secretion contribute to T2DM, but decreased insulin secretion may be more important in the development and progression of T2DM.
Diabetes Mellitus, Type 2/*physiopathology ; Disease Outbreaks ; Female ; *Glucose Tolerance Test ; Health Status Indicators ; Humans ; Insulin/*secretion ; *Insulin Resistance ; Male ; Middle Aged

OBJECTIVES: This study estimated the magnitude of malignant mesothelioma and its epidemiologic features in Korea. We collected data on 160 cases for the 5-year period from 2001 to 2005. METHODS: We established a surveillance system for malignant mesothelioma in 2001. The important participants were pathologists, and respiratory and occupational physicians. We reclassified these cases according to the date of diagnosis and calculated fatality by comparing National Mortality Data. We actively surveyed 18 cases which were diagnosed in 2004 and 2005 to evaluate their work-relatedness. RESULTS: Among 160 cases, 18 were initially diagnosed before 1995, 57 from 1996 to 2000, 11 in 2001, 18 in 2002, 11 in 2003, 29 in 2004 and 16 in 2005. After 2001, 17cases were reported annually. Among the 86 cases which were diagnosed before 2003, 60 cases (69.8%) had died and 46(53.5%) had died within 1 year. Among the 18 cases which we surveyed, 5 were related with the construction industry, 2 with asbestos textile manufacturing industries and 1 with asbestos painting. There was no evident work relatedness in the other 10 cases, but 6 were related to environmental exposure. CONCLUSIONS: Although this surveillance system revealed the magnitude of malignant mesothelioma in Korea, it needs to be supplemented by an active surveillance system using death certificate data and cancer registry data etc.
Asbestos ; Construction Industry ; Death Certificates ; Diagnosis ; Environmental Exposure ; Korea* ; Mesothelioma* ; Mortality ; Paint ; Paintings ; Textiles

BACKGROUND: To maximize the histological advantage and minimize the physiological disadvantage, we have been using the skeletonized gastroepiploic artey (GEA) as a free graft for total arterial revascularization. The aims of the current study was to assess the efficacy of the skeletonized GEA as a composite or extended graft for total arterial revascularization. MATERIAL AND METHOD: Between January 2000 and Feburary 2005, 133 patients (43 female, mean age=61.8 yrs) undergoing coronary artery bypass grafting (CABG) with a skeletonized GEA as free graft (22 extended, 107 composite and 4 others) were enrolled in this study. Coronary angiograms were performed in the immediate (median 14 days, n=86), early (median 366 days, n=56) and midterm (median 984 days, n=29) postoperative periods. RESULT: There were 3 (2.2%) early and 4 (3.3%) late cardiac-related deaths. The mean number of distal anastomoses per patient was 3.34 for total graft and 1.92 for GEA graft. The immediate, early, and midterm GEA patency were 157/159 (98.7%), 106/112 (94.6%), and 53/56 (94.6%), respectively. During follow-up, four patients required percutaneous intracoronary intervention because of GEA and target coronary artery stenosis or competitive flow. CONCLUSION: These data demonstrate satisfactory clinical and angiographic results in the skeletonized GEA as free graft for total arterial revascularization. Although we need a careful longer follow-up, the skeletonized GEA as a free graft will be a valuable option 'to be' for CABG.
Coronary Artery Bypass* ; Coronary Stenosis ; Coronary Vessels* ; Female ; Follow-Up Studies ; Gastroepiploic Artery* ; Humans ; Postoperative Period ; Skeleton* ; Transplants*

Inflammatory myofibroblastoma is a solid tumor, occurring mainly to children and young adults, and occupying 0.7% of total isolated pulmonary nodules. Since 1973, several cases about inflammatory myofibroblastoma have been reported. Firstly, this tumor was found in lungs. Then, tumors have been founded and reported in mesentery or cardioesophageal region. Histologically, this tumor can be classified as a benign tumor. However, since this tumor has two characteristics showing malignancy, that is, local invasion and recurrence, malignancy can not be completely excluded. Recently, a patient with pulmonary inflammatory myofibroblastoma underwent surgical resection without any signs or symptoms of recurrence.
Child ; Humans ; Lung ; Lung Neoplasms ; Mesentery ; Myofibroblasts* ; Neoplasms, Muscle Tissue ; Recurrence ; Young Adult