BACKGROUND: Gastroesophageal reflux is common in infants. The incidence of reflux in preterm infant has been reported to be higher than in fullterm infant. We perform this study to evaiuate the gastroesophageal reflux in preterm infant and fullterm infant. METHOD: A continuous 24 hour esophageal pH monitoring was performed in 28 asymptomatic infant(16 preterm infants and 12 fullterm infants). Four parameters(reflux index, number of reflux episodes in 24 hours, number of reflux episodesp 5 minutes in 24 hours, and duration of the longest reflux episode) were analyzed by gestation and birth weight. RESULT: All four parameters were not different in the low birth weight infant group(birth weight<2,500gm) compaired with infant of birth weight> or =2,500gm. In preterm infant group, mean reflux index was 3.08+/-6.84%; number of reflux episodes in 24 hours was 85.94+/-145.99; number of reflux episodes longer than 5 minutes was 0.38+/-0.72; and duration of the longest reflux episode was 3.69+/-4.88 minutes. In fullterm infant group, mean reflux index was 9.42+/-8.98%; number of reflux episodes in 24 hours was 190.58+/-158.27; number of reflux episodes longer than 5 minutes was 5.17+/-5.97; and duration of the longest reflux episode 16.58+/-15.41 minutes. Significant differences in reflux index, number of reflux episode longer than 5 minutes, and duration of the longest reflux episode were found between the preterm infant and fullterm infant. The number of reflux episodes in 24 hours was not different between preterm and fullterm infants. CONCLUSION: In continuous 24 hour esophageal pH monitoring, gastroesophageal reflux was more common in fullterm infant than preterm infant.
Birth Weight ; Esophageal pH Monitoring ; Gastroesophageal Reflux* ; Humans ; Hydrogen-Ion Concentration* ; Incidence ; Infant ; Infant, Low Birth Weight ; Infant, Newborn ; Infant, Premature* ; Parturition ; Pregnancy

No abstract available.

No abstract available.
Drainage* ; Pancreatic Pseudocyst*

OBJECTIVES: Ischemic heart disease (IHD) is a major cause of death in Korea and known to result from several occupational factors. This study attempted to estimate the current magnitude of IHD mortality due to occupational factors in Korea. METHODS: After selecting occupational risk factors by literature investigation, we calculated attributable fractions (AFs) from relative risks and exposure data for each factor. Relative risks were estimated using meta-analysis based on published research. Exposure data were collected from the 2006 Survey of Korean Working Conditions. Finally, we estimated 2006 occupation-related IHD mortality. RESULTS: For the factors considered, we estimated the following relative risks: noise 1.06, environmental tobacco smoke 1.19 (men) and 1.22 (women), shift work 1.12, and low job control 1.15 (men) and 1.08 (women). Combined AFs of those factors in the IHD were estimated at 9.29% (0.3-18.51%) in men and 5.78% (-7.05-19.15%) in women. Based on these fractions, Korea's 2006 death toll from occupational IHD between the age of 15 and 69 was calculated at 353 in men (total 3,804) and 72 in women (total 1,246). CONCLUSION: We estimated occupational IHD mortality of Korea with updated data and more relevant evidence. Despite the efforts to obtain reliable estimates, there were many assumptions and limitations that must be overcome. Future research based on more precise design and reliable evidence is required for more accurate estimates.
Cardiovascular Diseases ; Cause of Death ; Female ; Humans ; Korea ; Male ; Myocardial Ischemia ; Noise ; Occupations ; Risk Factors ; Smoke ; Tobacco

A 12-year-old boy developed cholestatic hepatitis with Steven-Johnson syndrome following the use of amoxicillin. The skin lesion and general condition were improved over 2 weeks, but jaundice was gradually aggrevated. We performed liver biopsy, on 30th hospital day, which showed cholestatic hepatitis. The patient improved gradually and liver function was normalized 5 months later.
Amoxicillin ; Biopsy ; Child ; Hepatitis* ; Humans ; Jaundice ; Liver ; Male ; Skin

PURPOSE: To evaluate factors associated with the direction of horizontal deviation in the sensory strabismus of patients with unilateral organic amblyopia. METHODS: The medical charts of 53 patients who had been diagnosed with sensory strabismus between 2000 and 2009 were reviewed retrospectively. The underlying ocular disease, time of onset and the duration of vision impairment, refractive error and axial length of the fixing eye, and the direction and angle of deviation were analyzed to determine the distribution of underlying diseases and any factors relevant to determining the direction of the horizontal deviation. RESULTS: Congenital cataracts were the most common underlying disease, found in 33 patients, followed by acquired cataracts, optic nerve disorders, retinal detachment, glaucoma and lens subluxation. Among the 50 patients with horizontal strabismus, 11 had esotropia and 39 had exotropia. The incidence of esotropia was significantly higher when the fixing eye had hyperopia or emmetropia, than when the eye was myopic. Age of onset of vision deterioration and at diagnosis of sensory strabismus, and the axial length of the fixing eye had no relationship to the direction of horizontal deviation. In addition, the duration of visual impairment had no significant relationship with the direction or extent of horizontal deviation. CONCLUSIONS: The most common cause of sensory strabismus was congenital cataracts and the most frequent type of strabismus was exotropia. With respect to the direction of horizontal strabismus, esotropia occurred significantly more often when the refractive error of the fixing eye was hyperopia or emmetropia than when the fixing eye was myopic.
Adolescent ; Adult ; Amblyopia/*complications/physiopathology ; Cataract/complications/congenital/physiopathology ; Child ; Child, Preschool ; Eye Movements/*physiology ; Female ; Follow-Up Studies ; Humans ; Infant ; Infant, Newborn ; Male ; Oculomotor Muscles/*physiopathology ; Refractive Errors ; Retrospective Studies ; Risk Factors ; Strabismus/etiology/*physiopathology ; Visual Acuity ; Young Adult

BACKGROUND: Discrepancies exist in the existing researches regarding the association between social capital and self-efficacy, and most of these researches have been done in developed countries. The aims of this study were to assess the independent association between individual social capital and self-efficacy and to assess the associations between individual social capital, self-efficacy and self-rated health. METHODS: Data were obtained from the Gyeongnam health survey (6,500 persons) conducted in 2008. A self-administered questionnaire was additionally administered to gather information on demographic variables, health behaviors, chronic diseases, self-efficacy, social capital, and self-rated health status. Total study population was 3,843 as those with chronic diseases were excluded. RESULTS: In males, trust was positively associated with confidence and preference to task difficulty, and participation was negatively associated with confidence and positively associated with regulation and preference to task difficulty. In females, trust was positively associated with confidence and preference to task difficulty and negatively associated with regulation. Participation was positively associated with preference to task difficulty. In males, the odds for self-rated health status was better for persons with confidence (95% confidence interval, CI 1.088-1.705), trust (95% CI 1.172-1.821) and participation (95% CI 1.268-2.117). In females, the odds for self-rated health status was better for those with confidence (95% CI 1.250-1.803), preference of task difficulty (95% CI 1.019-1.683) and participation (95% CI 1.024-1.555). CONCLUSIONS: High social capital measured at an individual level may promote self-efficacy and health status.
Chronic Disease ; Developed Countries ; Female ; Health Behavior ; Health Surveys ; Humans ; Male ; Self Efficacy ; Surveys and Questionnaires

BACKGROUND/AIMS: Foreign body (FB) removal is a common indication of therapeutic endoscopy in children. The trend is becoming wider and more rational in application. The spectrum of upper gastrointestinal FB's in children during a recent 2 year period was reviewed in Taegu, Kyungbook Province in order to obtain a the consensus of recent trend of indications and techniques of endoscopic FB removal in children. METHODS: Esophagogastroscopy was performed on 78 children who had been referred to 3 University Hospitals in Taegu for FB ingestion from Oct. 1996 to Sep. 1998. RESULTS: Age between 1~2 year was the peak age group; 22 cases (28%). Male to female ratio was 1.9:1. Thirty four cases (44%) were in the esophagus, 44 cases (56%) in the stomach. The majority (49%) of the FB's were coins, 26 of 34 esophageal FB's and 12 of 44 gastric FB's. Others were 14 sharp/pointed objects, 12 big/long objects, 7 toxic objects, etc. In 67 children (86%) the FB was successfully removed and spontaneous passage through the pylorus was observed in 9 children. CONCLUSIONS: Endoscopic FB removal can be performed safely and effectively in children with minimal or no complications by an experienced endoscopist. Proper arrangement should be conducted with consideration to the property of FB's, expected complication, and the possibility of an emergency situation.
Child* ; Consensus ; Daegu* ; Eating ; Emergencies ; Endoscopy ; Esophagus ; Female ; Foreign Bodies* ; Hospitals, University ; Humans ; Korea* ; Male ; Numismatics ; Pylorus ; Stomach ; Upper Gastrointestinal Tract*

PURPOSE: To compare the efficacy of the transconjunctival releasable suture technique for pars plana vitrectomy using 23-gauge (23G) instruments versus the conventional 20-gauge (20G) technique. METHODS: A retrospective and interventional case series was consecutively performed for 199 eyes of the 192 patients that were a part of this study. Clinical data were reviewed retrospectively regarding the operation time, preoperative and postoperative intraocular pressure, visual acuity and astigmatism for 54 consecutive patients who received a 23G releasable suture vitrectomy and for 98 consecutive patients who received a 20G conventional vitrectomy during the period between April 2007 and September 2010. RESULTS: Mean operation time based on the operation record was 88.5 +/- 20.1 minutes in the 23G releasable suture vitrectomy group and 102.1 +/- 23.1 minutes in the 20G conventional vitrectomy group, respectively (p = 0.01). The last best-corrected visual acuity (BCVA) was significantly better than the preoperative BCVA in both patient groups (p = 0.01, p = 0.01). The 23G releasable suture group showed less surgically induced astigmatism than the 20G conventional vitrectomy group. Vitreous bleeding was observed to be in 6 eyes (5.9%) in the 23G group, and in 8 eyes (8.2%) in the 20G group. In addition, ocular hypertension was noted to be in 3 eyes (3.0%) in the 23G group, and 6 eyes (6.1%) in the 20G group. No serious complications such as postoperative hypotony or endophthalmitis were observed in either group. CONCLUSIONS: The 23G releasable suture technique is as effective as the 20G conventional technique and offers several advantages.
Adult ; Aged ; Equipment Design ; Female ; Follow-Up Studies ; Humans ; Male ; Middle Aged ; Retrospective Studies ; Suture Techniques/*instrumentation ; *Sutures ; Treatment Outcome ; Visual Acuity ; Vitrectomy/*methods ; Vitreous Hemorrhage/physiopathology/*surgery

BACKGROUND: The overall prognosis of acute leukemia has dramatically improved in the past 20 years, primarily due to the use of intensive multiagent chemotherapy in combination with CNS prophylaxis. However, increased aggressiveness of treatment protocols was entailed a great risk of various toxic effects. Endocrine function was also affected. The aim of this study is to compare the effect of chemotherapy on thyroid function in children with acute leukemia. METHOD: Parameters of thyroid function during chemotherapy were measured in 11 children with acute leukemia. Level of the serum 73,74 and TSH were determined before therapy, 7th day and 30th day of chemotherapy. Determination of serum 73, 74 and TSH were performed by conventional radioimmunoassay technique. Statistical analysis was done using SAS software. RESULT: 1) Level of level 73 was normal in 7 cases before therapy and decreased in 9 cases on 7th day of remission induction therapy. On 30th day, 73 level was increased to normal value. 2) Level of 74 was normal before therapy and decreased on 7th day of therapy. On 30th day of therapy 74 level showed various change. Three of them showed sustained low level of 74 on 7th and 30th day. 3) Level of TSH were normal before therapy and decreased on 7th day of therapy, followed achievement of normal level after completion of induction therapy. CONCLUSION: We conclude that during induction chemotherapy in childhood acute leukemia, thyroid function was impaired which was reversible.
Child ; Clinical Protocols ; Drug Therapy* ; Humans ; Induction Chemotherapy ; Leukemia* ; Prognosis ; Radioimmunoassay ; Reference Values ; Remission Induction ; Thyroid Gland*