Mucolipidosis II (ML II) or inclusion cell disease (I-cell disease) is a rarely occurring autosomal recessive lysosomal enzyme-targeting disease. This disease is usually found to occur in individuals aged between 6 and 12 months, with a clinical phenotype resembling that of Hurler syndrome and radiological findings resembling those of dysostosis multiplex. However, we encountered a rare case of an infant... |
McKusick-Kaufman syndrome (MKS) is an autosomal recessive multiple malformation syndrome characterized by hydrometrocolpos (HMC) and postaxial polydactyly (PAP). We report a case of a female child with MKS who was transferred to the neonatal intensive care unit of Seoul National University Children's Hospital on her 15th day of life for further evaluation and management of an abdominal cystic mass. She... |
Spontaneous pneumomediastinum in the absence of predisposing risk factors has been rarely observed in full-term neonates. A 3-day-old neonate, delivered vaginally at term without any perinatal complications or signs of respiratory difficulty, was referred to the Seoul National University Children’s Hospital because of reduced heart sound detected during routine neonatal examination. Chest computed tomography (CT) showed air collection in the... |
Purpose : To identify the short-term clinical outcomes of late preterm infants and to test the hypothesis that late preterm infants have more clinical problems during the early postnatal period than term infants. Methods : One hundred late preterm infants [gestational age (GA) 34+0-36+6 weeks] and the same number of term infants (GA 37+0-41+6 weeks) were randomly selected from 289 late... |
Purpose : This study aims to determine whether early closure (within 7 d) of significant patent ductus arteriosus (PDA) with indomethacin or ligation reduces neonatal morbidity when compared with delayed closure (after 7 d). Methods : Fifty-eight extremely-low-birth-weight infants admitted to the NICU of Seoul National University Hospital from April 2005 to May 2007 with PDA were studied retrospectively. Results :... |
Vallecular cyst is an uncommon but potentially dangerous condition causing stridor and has been associated with sudden airway obstruction resulting in death due to its anatomical location in neonates. It may also present with various degrees of feeding problems resulting in failure to thrive. When a vallecular cyst is suspected clinically, endoscopic laryngoscopy is necessary to visualize it. Other conditions... |
Purpose : This study aims to describe the clinical characteristics of severe meconium aspiration syndrome (MAS) which required mechanical ventilation over 48 h and to delineate the progress of respiratory failure and radiographic findings in severe MAS. Methods : Twelve infants admitted to the Neonatal Intensive Care Unit (NICU) of the Seoul National University Bundang Hospital diagnosed with severe MAS from... |
Purpose : To identify clinical characteristics of severe respiratory syncytial virus (RSV) in neonatal period and early infancy and provide information in clinical practice. Methods : Twelve neonates and young infants (<6 months) who were infected by respiratory syncytial virus and required mechanical ventilation between March 2005 and July 2007 were enrolled. Diagnosis of RSV infection was made based on the... |
Purpose : The purpose of this study is to make a diagnostic classification and discuss a diagnostic strategy of floppy infants by investigating clinical, neurological, electrophysiological, and genetic analysis of infants admitted to intensive care units with the complaint of hypotonia. Methods : A retrospective study was performed from Jan. 1993 to Dec. 2005 in neonatal and pediatric intensive care units... |
Purpose : The survival rate of infants weighing less than 1,000 g at birth(extremely low birth weight infants, ELBWI) has increased due to recent advances in perinatal and neonatal intensive care. The purpose of this study was to evaluate the survival rates of ELBWI born at Seoul National University Hospital during the last six years. Methods : A total of... |
Purpose: Histologic chorioamnionitis may play a role in the development of respiratory distress syndrome(RDS) and chronic lung disease(CLD) independently or through its association with preterm birth. We investigated the relationship between histologic chorioamnionitis and clinical complications including, RDS and CLD, of preterm infants. Methods: Clinical data were collected retrospectively from 478 preterm infants(gestational period≤34 weeks) who were admitted to the neonatal... |
Subcutaneous fat necrosis in neonates is a rare disease characterized by skin lesions, which may be single or multiple, poorly circumscribed and often tender erythematous nodules or plaques on cheeks, buttocks, back, arms, and thighs. These symptoms are usually self-limited; resolution occurs over a period of weeks to months. Subcutaneous fat necrosis affects full term and healthy- appearing infants who... |
Citrullinemia is a rare inborn error of metabolism of the urea cycle, and was first reported by McMurray, et al. in 1962. It is inherited as an autosomal recessive trait. The normal synthesis of argininosuccinic acid is blocked in this disease due to a deficiency of argininosuccinic acid synthetase(AS), which has been demonstrated in liver cells and fibroblasts. The clinical... |
Purpose : We tried to classify the different type of CLD and assess the risk factors for classical CLD and atypical CLD. Methods : Retrospective cohort analysis was done in 120 preterm infants with birth weights less than 1,500 g who were admitted to NICU in Seoul National University Children's Hospital between Jan. 1993 and Dec. 1998 and survived more... |
Congenital methemoglobinemia is caused by NADH-methemoglobin reductase deficiency in more than half of the total reported cases. NADH-methemoglobin reductase deficiency is an uncommon hereditary disorder producing methemoglobinemia and cyanosis in the homozygous subject. A majority of the patients born with these abnormalities have only a cosmetic defect-asymptomatic cyanosis. Congenital methemoglobinemia due to NADH-methemoglobin reductase deficiency is an autosomal recessive disorder... |
Purpose : Cisapride, a prokinetic agent, is widely used in preterm infants with feeding intolerance or gastroesophageal reflux. Although cisapride is regarded as a safe drug, increased QTc interval or ventricular arrhythmia has been reported in adults and neonates. So we prospectively examined the effects of cisapride on the QTc interval and QT dispersion in preterm infants. Methods : QTc interval... |
Purpose : To test the hemodynamic and biochemical sequences of secondary cerebral energy failure after acute reversed hypoxic ischemic brain insult(HI) can be reproduced in newborn piglets. Methods : Fifteen anesthetized, ventilated newborn piglet(<3 day) were studied. Eight(HI) were induced transient HI by breathing 8% oxygen and complete occlusion of bilateral common carotid arteries for 30 minutes followed by reoxygenation... |
Purpose : To see if a similar relationship exists between the decreased number of circulating neutrophils and the development of bronchopulmonary dysplasia(BPD) in preterm infants, we tried to test the hypothesis that claims that preterm infants, who develop BPD, have decreased number of circulating neutrophils than those who do not develop BPD. Methods : A retrospective cohort study was conducted in... |
Purpose : Surfactant replacement therapy significantly decreases neonatal complications and mortality in neonates with respiratory distress syndrome(RDS), but clinical responses to the treatment is not consistent. An analysis of the perinatal factors influencing the clinical response to the therapy is important for early detection of high risk and prognosis. The purpose of this study is to analyze the clinical... |
Purpose : Patent ductus arteriosus(PDA) is a common disease in very low birth weight infants(VLBWI). Hemodynamically significant PDA increases the morbidity and mortality of premature infants. Based on experimental model, light inhibits the constriction of immature piglet' s ductal rings. No specific mechanism adequately explains the effect of light on the relaxation of PDA. Several hypotheses, including activation of photosensitive metabolites, alterations in receptors, or... |
Purposes : Nitric oxide(NO) is classified as toxic gas in native states, but in most biologic systems NO acts as a messenger molecule. NO is known as endothelium derived relaxing factor that modulates tone of vascular smooth muscle. Inhaled NO has been reported to act as a selective pulmonary vasodilator and we expect that NO inhalation can be used as a successful treatment modality... |
Purpose : The genital mycoplasmas: Ureaplasma urealyticum and Mycoplasma hominis have recently assumed an increasing importance as neonatal pathogens especially in preterm infants. The aim of the present study was to determine the prevalence of infections with these organisms in newborn infants who were admitted in Neonatal Intensive Care Unit(NICU) and who were suspected having infection in newborn nursery Methods : Sixty four inborns who... |
Purpose : Retinopathy of prematurity(ROP) continues to be a serious problem in infants who survived with neonatal intensive care. Nevertheless, there is neither available data about the incidence of ROP which may be the basis of the epidemiology, nor analysis of the risk factors of ROP in Korea. The purpose of this retrospective study was to evaluate the incidence of... |
Over a continuous 4-year period, from January 1989 till December 1992, 7,100 infants were born in Department of Obstetrics and admitted to Nursery or Neonatal Intensive Care Unit of Department of Pediatrics of Seoul National University Children's Hospital. Among them, 126 cases were diagnosed as respiratory distress syndrome (RDS) of newborn. The total incidence of RDS among all the newborns(inborn)was 1.77%.... |
We studied the effects of chronic hyperoxia (>95% oxygen for 14 days) in change of body weight, wet to dry ling weight ratio, and morphologic changes of lung tissue compared with that of room air (21% oxygen for 14 days) in Sprague-Dawley neonatal rat pups. The results were as follows: 1) In neonatal rat pups exposed to room air (normoxia group), body... |
We analyzed neurodevelopmental outcome data of 36 selected studies. Data of individual studies were pooled by birth weight group: <800g, <1,000g, <1,500g and by time period of birth year: Period I(pre-intensive care era), 1960-67:Period II(beginning period of intensive care), 1968-76:and Period III(established period of intensive care), 1977-87. In all weight groups, survival and intact outcome rates based on live birth have... |
Intraventricular hemorrhage (IVH) is common in the premature infants and occurs mainly in subependymal germinal matrix. In contrast, IVH in the term infants is rare and different in pathogenesis and bleeding sites from those of the premature infants. Most studies of IVH in term infants have been studied by computerized tomography and postmortem examination. Brain ultrasonography which has become a... |
The 45 neonates with bronchopulmonary dysplasia among 355 neonates who were managed with mechanical ventilation and oxygen therapy in NICU of Seoul National University Chhildren's Hospital from January 1, 1968 to December 31, 1991, were analyzed for risk factors and outcome. The results were as follows: 1) The incidence of bronchopulmonary dysplasia was 12.7% 2) Respiratory Distress Syndrome was most common underlying problem. 3)... |
Five years ago, we made the cut-off value of TSH by dry filter paper method as 15μU/ml to screening congenital hypothyrodism. Since then, 1,210 term neonates, who had no perinatal problems, screening test with this cut-off point. Neonates had been recalled for measurement of serum T4/TSH to rule out congenital hypothyroidism if their TSH value by screening tests reveal more... |