No abstract available.
Child* ; Gangwon-do* ; Humans

OBJECTIVE: To investigate the effect of the type of placenta and the portion of umbilical cord insertion on birthweight and growth discordancy in twin pregnancies. METHODS: We selected 120 twins of 146 multiple pregnancies between March, 2000 and March, 2002, and one fetus of all cases at least weighed 500 g or more and over 24 weeks of gestation. The fetuses were included that 44 twins (88 fetuses) had monochorionic placentas and the 76 twins (152 fetuses) had dichorionic placentas. The dichorionic twins were divided into two groups; one (38 twins, 76 fetuses) showed the fused type of placenta and the other (38 twins, 76 fetuses) showed the separate type of placenta. The types of umbilical cord insertion were also divided into the central portion and the peripheral portion, the peripheral portion was defined within 2 cm of margin of placenta, and included marginal and velamentous insertion of umbilical cord. Stastical analysis were performed with Student t-test and runs test. p<0.05 was defined significantly. RESULTS: 1. The central type of umbilical cord insertion in dichorionic placenta was more frequent than that of monochorionic placenta (p<0.01). 2. The dichorionic infants, regardless the number of placenta, who weighed more than monochorionic infants at birth (p<0.01). 3. Twin pairs with over 25% of growth discordancy were 16 cases (13.3%), which included 9 cases (9/76, 11.8%) of dichorionic placenta and 7 cases (7/44, 15.9%) of monochorionic placenta. The severe growth discordancy was more commonly developed in monochorionic twins than dichorionic twins (p<0.01). 4. Perinatal deaths in twin pairs with over 25% of GD were 12 cases, which included 3 cases (3/18, 16.7%) of dichorions, and 9 cases (9/14, 64.3%) of monochorions. Therefore, perinatal death was showed more commonly in monochorinic twin infants (p<0.01). CONCLUSION: The type of umbilical cord insertion affected the birthweight of dichorionic separated infants. Monochorionic placenta attributed to more severe growth discordancy and increased perinatal death rate than the dichorionic placenta. Antenatal detection of chorionicity and the portion of umbilical cord insertion may improve the perinatal outcome.
Chorion ; Female ; Fetus ; Humans ; Infant ; Mortality ; Parturition ; Placenta* ; Pregnancy ; Pregnancy, Multiple ; Pregnancy, Twin* ; Umbilical Cord*

PURPOSE: Non-intraocular pressure (IOP) factors such as vascular factors have been identified as contributing to normal tension glaucoma. However, there is not an established range of haemorheological factors considered normal, nor are there standardized tests. In this study, we investigated differences in blood viscosity and haemorheological parameters between patients with normal tension glaucoma (NTG) and normal controls using a new instrument called the BVD-RO1 (BIO-VISCO. Inc., Jeonju, Korea). METHODS: Twenty patients with NTG and 20 age-matched normal controls were included in the study. Haemorheological parameters of the venous blood samples, including blood viscosity at the shear rates of 300 (high shear rate) and 1 (low shear rate) s-1 were measured using an automated scanning capillary tube viscometer. RESULTS: More hematocrit concentration was detected in the NTG group than in the control group (p < 0.05). Furthermore, higher blood viscosities at the high (p < 0.01) and low (p < 0.01) shear rates were found in the NTG group. CONCLUSIONS: The NTG patients differed in blood viscosity with the control group. This may signify the importance of hemodynamic factors in the pathogenesis of NTG.
Blood Viscosity* ; Capillaries ; Hematocrit ; Hemodynamics ; Humans ; Jeollabuk-do ; Low Tension Glaucoma*

PURPOSE: To investigate the clinical features and treatment outcomes between methicillin-sensitive Staphylococcus epidermidis (MSSE) and methicillin-resistant Staphylococcus epidermidis (MRSE) keratitis groups. METHODS: A retrospective analysis of case series was conducted of all patients with keratitis caused only by Staphylococcus epidermidis from January 1997 through December 2008. Sex, age, history of trauma, systemic disease, previous ocular history, antibiotic sensitivity test results, and treatment outcomes were evaluated. Patients were categorized into two groups as MSSE and MRSE according to methicillin-sensitivity result, and a comparative analysis was performed. RESULTS: There were no significant differences in clinical features, such as risk factors or size or location of keratitis between the two groups. All MSSE and MRSE isolates were sensitive to vancomycin, moxifloxacin, and levofloxacin. All MSSE and 17%, 50%, 52%, and 57% of MRSE isolates were sensitive to cephalothin, norfloxacin, ciprofloxacin, and erythromycin, respectively (p < 0.05). There was no significant difference in visual acuity between the two groups. CONCLUSIONS: All MSSE and MRSE isolates were sensitive to vancomycin and to third- or fourth-generation fluoroquinolones In addition, approximately 50% of MRSE isolates were sensitive to norfloxacin and ciprofloxacin. There were no significant differences in clinical features of keratitis caused by MSSE versus those of MRSE isolates. Both keratitis groups had relatively good visual prognoses.
Aza Compounds ; Cephalothin ; Ciprofloxacin ; Epidemiologic Studies ; Erythromycin ; Fluoroquinolones ; Humans ; Keratitis ; Methicillin Resistance ; Norfloxacin ; Ofloxacin ; Prognosis ; Quinolines ; Retrospective Studies ; Risk Factors ; Staphylococcus ; Staphylococcus epidermidis ; Vancomycin ; Visual Acuity

OBJECTIVE: The aim of study was to compare incidence rate and causes of the preterm birth that are the major factor of newborn mortality and morbidity. METHODS: Respectively there were 428 preterm deliveries out of 5,309 deliveries, from January to August 1995, and there were 319 preterm deliveries out of 2,028 deliveries, from January to August 2000 at Gill hospital, a hospital in affiliation with Gachon Medical School. The data were collected by review of the hospital record and the statistical analysis was performed using paired T-tests, Oneway ANOVA, Fisher's exact test, and statistics significance was defined as p<0.05. RESULTS: The incidence rate of the preterm birth increased from 8.1%(428/5,309) in 1995 to 15.7%(319/2,028) in 2000. Unknown causes of preterm birth decreased from 25.5%(109) to 20.2%(66). PPROM(Preterm premature rupture of the membranes) decreased from 26.9%(115) to 22.9%(73). IIOC(Incompetent internal os of cervix) decreased from 9.7%(41) to 6.9%(22). Uterine anomaly decreased from 1.6%(7) to 1.0%(3). And other causes deceased from 8.9%(38) to 5.1%(16). Multiple pregnancy increased from 10.1%(44) to 17.6%(56). Fetal anomaly increased from 2.1%(9) to 6.3%(20). Pregnancy induced hypertension increased from 7.9%(34) to 13.3%(42). There was not much change for the placental disorder or for placental abruption which decreased from 7.3%(31) to 6.7%(21). According to the analysis, there is a noticeable decrement in IIOC but noticeable increase in multiple pregnancy, fetal anomaly and PIH. CONCLUSION: Comparing the data from the preterm birth of 1995 and 2000, the unknown cause of the preterm birth is understood more accordingly to the decrement of known cause. The increase of multiple pregnancy seems to be caused by better in vitro fertilization. The increase of fetal anomaly is most likely caused by drug abuse, environmental pollution, and prenatal diagnosis. Differ from the decrease of previous research, the increase of PIH is caused by the increase of incidence of the preterm birth and also patients moving from private hospital to 3rd party hospital. We hope that we can continuously research the cause of the preterm birth and use that basic information to decrease the death and disease rates of newborn infants
Abruptio Placentae ; Animals ; Environmental Pollution ; Female ; Fertilization in Vitro ; Gills ; Hope ; Hospital Records ; Hospitals, Private ; Humans ; Hypertension, Pregnancy-Induced ; Incidence* ; Infant, Newborn ; Mortality ; Pregnancy ; Pregnancy, Multiple ; Premature Birth* ; Prenatal Diagnosis ; Rupture ; Schools, Medical ; Substance-Related Disorders

PURPOSE: The aim of this study was to translate the Urinary Tract Infection Symptoms Assessment (UTISA) questionnaire, which assesses the severity and nuisance of symptoms and signs of uncomplicated urinary tract infection, into Korean with subsequent linguistic validation for clinical use and research. MATERIALS AND METHODS: This self-administered questionnaire is composed of 14 items that cover the 7 most frequent symptoms and signs. After acquiring permission for use of the questionnaire in Korea from Bayer Health Care Pharmaceuticals Global Health Economics and Outcome Research, 2 bilingual linguists individually translated the original English version of the UTISA questionnaire into Korean, and the translations were then reconciled by the linguists and the authors. A preliminary Korean version was translated back into English and reconciled by another bilingual linguist to confirm proper forward translation of the UTISA questionnaire, and then a complete Korean version of the UTISA questionnaire was finished. Ten women with acute cystitis completed the Korean UTISA questionnaire and were then interviewed to confirm the final Korean version through cognitive debriefing. RESULTS: Linguistic validation of the Korean version of the UTISA questionnaire was completed through forward translation and reconciliation, back-translation and reconciliation, cognitive debriefing, and finally, proof-reading of the questionnaire as a instrument for assessing symptoms and signs of uncomplicated urinary tract infection. CONCLUSIONS: The UTISA questionnaire was translated into a Korean, and the translation was validated linguistically. Psychometric validation will be needed in a large set of patients with uncomplicated urinary tract infection.
Cystitis ; Delivery of Health Care ; Female ; Humans ; Korea ; Linguistics ; Psychometrics ; Translations ; Urinary Tract ; Urinary Tract Infections

Urothelial neoplasms in patients younger than 20 years old are extremely rare, and there is no established etiology, treatment guidelines, or surveillance for urothelial carcinoma in the pediatric population. A 17-year-old boy who presented with gross hematuria showed a smooth, round mass on the left lateral wall of the urinary bladder on cystoscopy. Histologic examination showed low grade papillary urothelial carcinoma of the urinary bladder without muscle layer invasion. We report a case of papillary urothelial carcinoma of the urinary bladder in a pediatric patient treated with transurethral resection.
Adolescent ; Cystoscopy ; Hematuria ; Humans ; Muscles ; Pediatrics ; Urinary Bladder

No abstract available.
Carcinosarcoma* ; Lung*

BACKGROUND: There is no effective treatment modality for caustic agent ingestion. Dilution and neutralization are prohibited because of the risk of secondary thermal injury. This experiment is designed to evaluate the amount of dilution and neutralization heat and to gauge the applicability of dilution and neutralization therapy using cold solutions to suppress the peak temperature. METHODS: This is an in-vitro chemical experiment. HCl, CH3COOH, NaOH, and NH4OH are selected as representatives of strong and weak acids and strong and weak alkali, respectively. 20degrees C, 11.6M, 5.8M, and 2.9M solutions of each acid and alkali are made and mixed using a magnetic stirrer at a room air temperature of 28degrees C. The peak temperature, the duration above 40degrees C, and the heat amount are measured or calculated. RESULTS: When a 11.6M HCl or NaOH solution is diluted with same amount of water, 32 or 18cal. per mL of HCl or NaOH is produced, respectively. HCl produces a significant peak temperature, but NaOH does not. The lower the concentration, the lower the amount of heat production. 11.6M CH3COOH and NH4OH solutions don't produce dilution heat. 11.6M and 5.8M solutions of all acids and alkali produce destructive neutralization heat. However, 2.9M solutions produce neutralization heat which might be controllable. When a 11.6M HCl or NaOH solution is neutralized with a -10degrees C 2.9 M NaOH or HCl solution, respectively, the peak temperature produced is below 40degrees C and seems to add little thermal damage to viable tissue. CONCLUSION: Dilution and neutralization with a cold solution in cases of strong acid or alkali ingestion is a promising method to avoid thermal injury.
Alkalies* ; Eating* ; Hot Temperature ; Thermogenesis ; Water

BACKGROUND: The purpose of this study is to know the healthcare-associated infection (HAI)s in small and medium sized hospitals, less than 400 beds. METHODS: We had web based surveillance for HAIs in 27 hospitals from August to October 2010. The surveillance performed in 1-2 ICUs and 1 general ward in each hospitals by CDC definition. And for the multi-drug resistant organisms (MDROs), we reviewed all of blood culture results. RESULTS: We identified 319 HAIs among 269,436 patients days. The HAIs rate was 1.18 (CI 1.05-1.32)/1,000 patient-days. Urinary tract infection was the most common HAI (52.4%) in this study followed by pneumonia (18.9%), blood-stream infections (14.2%), surgical site infection (7.9%), and others (6.6%). There were 76.5% of device associated infections in UTI, 46.7% in BSI, and 18.3% in pneumonia. The rate of HAIs in ICU was higher than that of in general ward (4.6 vs 0.9/1,000 patient-days). However, the indwelling catheter associated urinary tract infection rate was lower in ICU (2.6 vs 4.4/1,000 device days). There were no significant differences in central line-associated blood stream infection rate (1.5 vs 1.8) and ventilator-associated pneumonia rate (3.0 vs 0.0). The common microorganisms found in HAIs were Escherichia coli (19.8%), Staphylococcus aureus (13.1%), and Pseudomonas aeruginosa (12.7%). Moreover, 90.9% of S. aureus were resistant to methicillin, and 38.2% of P. aeruginosa and 44.4% of Acinetobacter baumannii were resistant to imipenem. Total of 66 MDROs were isolated from blood culture and the result shows that the MRSA was 84.6% (56 case), carbapenmen-resistant Acinetobacter spp. was 10.6% (7 case), and vancomycin-resistant enterococci was 4.6% (3 case). CONCLUSION: The characteristics of HAIs in small and medium sized hospitals will be contributed to the decision making of governance policy for infection control and to provide comparable data for these hospitals.
Acinetobacter ; Acinetobacter baumannii ; Catheters, Indwelling ; Centers for Disease Control and Prevention (U.S.) ; Decision Making ; Escherichia coli ; Humans ; Imipenem ; Infection Control ; Methicillin ; Methicillin-Resistant Staphylococcus aureus ; Patients' Rooms ; Pneumonia ; Pneumonia, Ventilator-Associated ; Pseudomonas aeruginosa ; Rivers ; Staphylococcus aureus ; Urinary Tract Infections