Severe laryngomalacia in a 1-month infant with Marfan syndrome

Severe respiratory difficulty can be more prominent, when combined with severe pectus excavatum and cardiovascular manifestations in infants with Marfan syndrome. There have been few reports on severe laryngomalacia as a cause of severe respiratory difficulty in an infant with Marfan syndrome. A 1-month-old boy was admitted due to severe respiratory difficulty. Immediately after birth, he had dysmorphic features, such as micrognathia, wrinkles on the forehead, and down-slanting palpebral fissures. On echocardiography, aortic root dilation with a mitral valve prolapse was observed. Due to severe laryngomalacia accompanied by severe respiratory difficulty and feeding difficulty, a partial epiglottectomy was performed at 1 month of age. After the surgery, suprasternal retraction and inspiratory stridor disappeared, and he started gaining weight with improvement in respiratory difficulty. On whole exome sequencing, a missense mutation on the FBN1 gene (c.3560A> C on exon 29, p.His1187Pro, calcium-binding epidermal growth factor-like #21) was identified. Despite higher perioperative risk due to comorbidities in Marfan syndrome, early intervention of laryngomalacia can be helpful in improving quality of life even in infants with Marfan syndrome.

Erratum: Addition of a Co-Author: Etiology of Invasive Bacterial Infections in Immunocompetent Children in Korea (2006–2010): a Retrospective Multicenter Study

The authors regret that one co-author (Kyung-Hyo Kim) was missing in the article.

Neonatal and Maternal Clinical Characteristics of Late Preterm Births: Single Center Data

PURPOSE: Recently, the number of late preterm infants are increasing, and they are prone to have many clinical problems. The purpose of this study is to emphasize the importance of perinatal care for the late preterm infants and their mothers. METHODS: Total admitted numbers of late preterm infants were 547 (from 464 mothers) and of term infants were 1,514 (from 1,470 mothers) in NICU, at Chonnam National University Hospital January 2014~December 2015. Maternal and neonatal mortality rate were calculated in the total admitted numbers. Exclusion criteria were death or transfer during admission, congenital anomaly, and etc. The enrolled numbers of late preterm infants were 493 (from 418 mothers) and of term infants were 1,167 (from 1,123 mothers). Retrospective chart review was conducted. In mothers, demographics, underlying illness, and obstetric complication, and in newborns, demographics, hospital days and morbidity were compared between late preterm group and term group. RESULTS: Maternal mortality rate was not different. However, neonatal mortality rate was higher in late preterm infants. In mothers of late preterm group, there was no difference in demographic characteristics, but the rates of autoimmune disease and obstetric complication were higher. In infants of late preterm group, body size was smaller, artificial conception and C-section rate were higher, and one and five-minute Apgar scores were lower, and hospital duration was longer. And the incidence of respiratory distress, transient tachypena of newborn, intraventricular hemorrhage and metabolic abnormalities were higher, but the incidence of meconium aspiration syndrome was lower compare to the term infant group. CONCLUSIONS: Maternal mortality was not different. However, neonatal mortality was higher in late preterm infants. In late preterm group, the mothers had higher rate of autoimmune disease and obstetric complication, and the infants had higher morbidity compare to the term group. When the obstetrician decides on delivery time in high risk pregnancy, maternal medical condition and neonatal outcome should be considered.

Neurological Outcome of Ischemic Stroke in Children: a Single Center Study / 대한소아신경학회지

PURPOSE: Ischemic stroke is rarely seen in children, but it could cause mortality and result in developmental disabilities such as motor paralysis, cognitive dysfunction, and epilepsy. In this study, the neurological outcomes of ischemic stroke in children were reviewed and the factors associated with the neurological outcomes were to be analyzed. METHODS: Medical records of patients younger than 15 years of age who were newly diagnosed with ischemic stroke between January 2006 and December 2016 in Chonnam National University Hospital were reviewed. RESULTS: This study consisted of 38 patients with ischemic stroke (male/female= 18/20, mean age=6 years 1 month±4 years 8 months). Neurological outcomes assessment was done at least 1 year after the onset of ischemic stroke. 10 patients (26.3%) had no neurological impairments. Motor paralysis was noted in 22 (57.9%), cognitive dysfunction was in 9 (23.7%), and epilepsy in 20 (52.6%). Among the possible risk factors for neurological impairments (age, sex, early seizures, characteristics of the infarcted lesions, abnormal electroencephalogram (EEG) findings), abnormalities on EEG findings were significantly associated with cognitive dysfunction (P=0.026) and the occurrence of early seizures with epilepsy (P=0.000). CONCLUSION: Neurological impairments were remained in 73.7% of children one year after ischemic stroke. Cognitive dysfunction was associated with abnormalities on EEG findings within 2 weeks after the onset of ischemic stroke and epilepsy with the occurrence of early seizures.

Safety and Immunogenicity of an Egg-Cultivated Quadrivalent Inactivated Split-virion Influenza Vaccine (GC3110A) in Healthy Korean Children: a Randomized, Double-blinded, Active-controlled Phase III Study

BACKGROUND: The frequency with which the 2 B lineages have been found to cocirculate in a season has been on the rise, which has spurred the need for a quadrivalent influenza vaccine (QIV) to protect against both B lineages. The World Health Organization (WHO) recommended that QIV include both B lineages beginning in the 2013–2014 flu season. This study was conducted to evaluate the immunogenicity and safety of an egg-cultivated QIV in healthy Korean children and adolescents aged ≥ 6 months to < 19 years. METHODS: A total of 528 subjects were randomized 4:1 to receive either a QIV (GC3110A) or a trivalent influenza vaccine. Hemagglutination inhibition antibody responses were assessed 28 days after the last dose. Safety was also evaluated. RESULTS: The proportion of subjects in the GC3110A group who achieved seroconversion was confirmed to exceed 40% across all age groups. The proportion of subjects aged ≥ 6 months to < 3 years in the GC3110A group who achieved seroprotection failed to meet the Ministry of Food and Drug Safety (MFDS) standard of 70%. Potential causes may include the small number of subjects, as well as the small dosage. However, results pertaining to the other age groups satisfied the MFDS standard. The safety profile was also comparable to that of the control. CONCLUSION: The new quadrivalent split influenza vaccine may offer broader protection to children and adolescents aged ≥ 3 years to < 19 years of age against both influenza B lineages than the existing trivalent influenza vaccines (Registered at the ClinicalTrials.gov NCT02541253).

Etiology of Invasive Bacterial Infections in Immunocompetent Children in Korea (2006–2010): a Retrospective Multicenter Study

BACKGROUND: Invasive bacterial infections in apparently immunocompetent children were retrospectively analyzed to figure causative bacterial organisms in Korea. METHODS: A total of 947 cases from 25 university hospitals were identified from 2006 to 2010 as a continuance of a previous 10-year period study from 1996 to 2005. RESULTS: Escherichia coli (41.3%), Streptococcus agalactiae (27.7%), and Staphylococcus aureus (27.1%) were the most common pathogens in infants < 3 months of age. S. agalactiae was the most prevalent cause of meningitis and pneumonia and E. coli was the major cause of bacteremia without localizing signs in this group. In children 3 to 59 months of age, Streptococcus pneumoniae (54.2%), S. aureus (20.5%), and Salmonella spp. (14.4%) were the most common pathogens. S. pneumoniae was the leading cause of pneumonia (86.0%), meningitis (65.0%), and bacteremia without localizing signs (49.0%) in this group. In children ≥ 5 years of age, S. aureus (62.8%) was the predominant pathogen, followed by Salmonella species (12.4%) and S. pneumoniae (11.5%). Salmonella species (43.0%) was the most common cause of bacteremia without localizing signs in this group. The relative proportion of S. aureus increased significantly over the 15-year period (1996–2010) in children ≥ 3 months of age (P < 0.001), while that of Haemophilus influenzae decreased significantly in both < 3 months of age group (P = 0.036) and ≥ 3 months of age groups (P < 0.001). CONCLUSION: S. agalactiae, E. coli, S. pneumoniae, and S. aureus are common etiologic agents of invasive bacterial infections in Korean children.

Clinical Utility of Echocardiography for the Diagnosis and Prognosis in Children with Bronchopulmonary Dsyplasia

BACKGROUND: Bronchopulmonary dysplasia (BPD) may result in chronic pulmonary artery hypertension and right ventricular (RV) dysfunction. Various echocardiographic assessments of RV dysfunction have been used to determine whether echocardiographic measurements of premature infants with BPD could provide sensitive measures of RV function that correlates with BPD severity. METHODS: Twenty-eight control subjects without BPD (non BPD group), 28 patients with mild BPD, 11 patients with moderate BPD, and six patients with severe BPD underwent echocardiograms with standard measurement such as ejection fraction by M-mode, tricuspid regurgitation pressure gradient, myocardial performance index (MPI) derived from pulse Doppler, and tissue Doppler imaging (TDI) measurements. BPD severity was classified by the NICHD/NHLBI/ORD workshop rating scale. Twenty-eight control subjects without BPD (non BPD group), 28 patients with mild BPD, 11 patients with moderate BPD, and six patients with severe BPD underwent echocardiograms with standard measurement such as ejection fraction by M-mode, tricuspid regurgitation pressure gradient, myocardial performance index (MPI) derived from pulse Doppler, and TDI measurements. BPD severity was classified by the NICHD/NHLBI/ORD workshop rating scale. RESULTS: None of the standard echocardiographic findings was significantly different between the control group and BPD groups. However, mean septal TDI-MPI of the severe BPD group (0.68 ± 0.06) was significantly (p < 0.01) higher than that of the non-BPD (0.58 ± 0.10) or the mild BPD group (0.59 ± 0.12). In addition, mean RV TDI-MPI of the severe BPD group (0.71 ± 0.13) was significantly (p < 0.05) higher than that of the non-BPD group (0.56 ± 0.08) or the mild BPD group (0.60 ± 0.125). Linear regression showed a good correlation between the severity of BPD and RV TDI-MPI (p = 0.01, R = 0.30) or septal TDI-MPI (p = 0.04, R = 0.24). CONCLUSION: Echocardiographic evaluation of RV function based on an assessment of RV TDI-MPI can provide RV dysfunction parameter in premature infants with BPD.

Early Changes in the Serotype Distribution of Invasive Pneumococcal Isolates from Children after the Introduction of Extended-valent Pneumococcal Conjugate Vaccines in Korea, 2011-2013

This study was performed to measure early changes in the serotype distribution of pneumococci isolated from children with invasive disease during the 3-year period following the introduction of 10- and 13-valent pneumococcal conjugate vaccines (PCVs) in Korea. From January 2011 to December 2013 at 25 hospitals located throughout Korea, pneumococci were isolated among children who had invasive pneumococcal disease (IPD). Serotypes were determined using the Quellung reaction, and the change in serotype distribution was analyzed. Seventy-five cases of IPD were included. Eighty percent of patients were aged 3-59 months, and 32% had a comorbidity that increased the risk of pneumococcal infection. The most common serotypes were 19A (32.0%), 10A (8.0%), and 15C (6.7%). The PCV7 serotypes (4, 6B, 9V, 14, 18C, 19F, 23F, and 6A) accounted for 14.7% of the total isolates and the PCV13 minus PCV7 types (1, 3, 5, 7F and 19A) accounted for 32.0% of the total isolates. Serotype 19A was the only serotype in the PCV13 minus PCV7 group. The proportion of serotype 19A showed decreasing tendency from 37.5% in 2011 to 22.2% in 2013 (P = 0.309), while the proportion of non-PCV13 types showed increasing tendency from 45.8% in 2011 to 72.2% in 2013 (P = 0.108). Shortly after the introduction of extended-valent PCVs in Korea, serotype 19A continued to be the most common serotype causing IPD in children. Subsequently, the proportion of 19A decreased, and non-vaccine serotypes emerged as an important cause of IPD. The impact of extended-valent vaccines must be continuously monitored.

Comparison between Caffeine and Theophylline Therapy for Apnea of Prematurity

PURPOSE: Methylxanthines are commonly used to treat apnea of prematurity. Recent studies have reported that caffeine therapy reduces the rate of bronchopulmonary dysplasia (BPD) and improves the rate of survival in preterm infant without neurodevelopmental disabilities. This study was performed to compare the effects on apnea episodes, adverse effects and morbidity between the caffeine and theophylline groups. METHODS: A retrospective study was performed in 143 infants born at less than 33 weeks of gestation and treated with caffeine (n=54) or theophylline (n=89) from 2011 to 2012. The baseline characteristics of mothers and their infants were examined. The number of apnea events before and after treatment, the duration of respiratory support, and the rate of re-intubation were compared. Furthermore, adverse effects, clinical course, and morbidities such as BPD and periventricular leukomalacia were compared before discharge. RESULTS: There were no significant differences in the baseline characteristics. Theophylline and caffeine appeared to have similar short-term therapeutic advantages on apnea of prematurity in mean apnea rate after first two weeks of treatment. However, there were no statistically significant differences in the duration of respiratory support, rate of re-intubation, clinical course, and morbidity between the two groups. Adverse effects, indicated by feeding intolerance were lower in the caffeine group. CONCLUSION: Caffeine was as effective as theophylline in the short-term for reducing apnea in preterm babies and was better tolerated and was easier to administer. A prospective randomized study is needed to confirm the effect of caffeine on the lone-term neurodevelopmental outcome in prematurity.

Risk Factors and Outcome of Nephrocalcinosis in Very Low Birth Weight Infants / 대한주산의학회잡지

PURPOSE: The aim of this study was to determine the incidence, risk factors, and long-term outcome of nephrocalcinosis in very low birth weight (VLBW) infants. METHODS: A retrospective chart review was performed in VLBW infants between 2006 and 2012 in the neonatal intensive care unit. RESULTS: The incidence of nephrocalcinosis in VLBW infants was 10.2%. By univariate analysis, oligohydramnios and use of antenatal steroids were more frequent in the nephrocalcinosis group. In the nephrocalcinosis group, the gestational age and birth weight were lower and there were more number of female infants. Also, the initial blood pH, the lowest systolic blood pressure, and urine output on the first day of life were lower and bronchopulmonary dysplasia, sepsis, and urinary tract infection were more prevalent in the nephrocalcinosis group. The use of dexamethasone or ibuprofen and the lowest levels of phosphorus, protein and albumin were significantly lower in the nephrocalcinosis group. By binary logistic regression analysis, the use of antenatal steroids, female sex, 5-minute Apgar score, duration of oxygen therapy and total parenteral nutrition, and the lowest albumin level were found to be significant risk factors for nephrocalcinosis. Overall, the resolution rate was 64.1% and 88.6% within 12 months and 18 months, respectively. CONCLUSION: The incidence of nephrocalcinosis in VLBW infants showed increasing trend. The risk factors of nephrocalcinosis were parameters for sick VLBW infants. Although the prognosis of nephrocalcinosis was relatively good, we should pay close attention to the development of complication.

Necrotizing enterocolitis in newborns: update in pathophysiology and newly emerging therapeutic strategies / 소아과

While the survival of extremely premature infants with respiratory distress syndrome has increased due to advanced respiratory care in recent years, necrotizing enterocolitis (NEC) remains the leading cause of neonatal mortality and morbidity. NEC is more prevalent in lower gestational age and lower birth weight groups. It is characterized by various degrees of mucosal or transmural necrosis of the intestine. Its exact pathogenesis remains unclear, but prematurity, enteral feeding, bacterial products, and intestinal ischemia have all been shown to cause activation of the inflammatory cascade, which is known as the final common pathway of intestinal injury. Awareness of the risk factors for NEC; practices to reduce the risk, including early trophic feeding with breast milk and following the established feeding guidelines; and administration of probiotics have been shown to reduce the incidence of NEC. Despite advancements in the knowledge and understanding of the pathophysiology of NEC, there is currently no universal prevention measure for this serious and often fatal disease. Therefore, new potential techniques to detect early biomarkers or factors specific to intestinal inflammation, as well as further strategies to prevent the activation of the inflammatory cascade, which is important for disease progression, should be investigated.

Transient Complete Atrioventricular Block in a Preterm Neonate with Congenital Myotonic Dystrophy: Case Report

Congenital myotonic dystrophy (CMD) is an inherited neuromuscular disorder with cardiac rhythm abnormalities that may occur as a child grows. No report has described complete atrioventricular (AV) block detected in a neonate with CMD. We report a floppy infant of 31(+4) weeks gestation with complete AV block at birth, who was diagnosed with CMD by Southern analysis. She recovered from complete AV block 32 hr after temporary transcutaneous pacing was applied. To the best our knowledge, this is the first recorded case of a complete AV block accompanied by CMD during the neonatal period. When a newborn has a complete AV block, the physician should consider the possibility of the CMD and conduct a careful physical examination.

A chromosome 1q44 deletion in a 4-month-old girl; The first report in Korea / 소아과

The deletion of the distal long arm of chromosome 1 is associated with a characteristic facial appearance and a pattern of associated malformations. Characteristic manifestations include a round face with prominent 'cupid's bow' and downturned corners of the mouth, thin vermilion borders of lips, a long upper lip with a smooth philtrum, a short and broad nose, epicanthal folds, apparently low-set ears, micrognathia, microcephaly, abnormal hands and feet, variable cardiac or genital anomalies, moderate to severe mental retardation, and growth retardation. Using fluorescent in situ hybridization (FISH) analysis to map precisely the deletion, we present a case of chromosome 1q44 deletion with craniofacial characteristics, multiple congenital anomalies, and growth and psychomotor retardation. In comparison with other reported cases of 1q43-44 deletion, the subject does not show hydrocephalus, seizure, syn- or polydactyly of hands, and a urogenital anomaly. However, an arachnoid cyst, pinpoint dimple on the midline of the forehead, a right-sided supernumerary nipple and auricular pit, polydactyly of the right foot, adducted thumb, and flexion restriction of the proximal interphalangeal joint with a simian line in both hands were observed additionally.

Prevention of Fungal Infection in Neonatal Intensive Care Unit

Although advances in neonatal intensive care have led to an improved survival rate of extremely low birth weight infants, prolonged hospitalization of these critically ill infants has rendered them to be vulnerable to fungal infection in NICU. Because the incidence of fungal infection with related mortality and morbidity is inversely related to gestational age and birth weight, preventive measure is imperative to improve the survival rate and the outcome. There are many evidence-based reports for antifungal prophylaxis with fluconazole target infants <1,000 g and/or < or =27 weeks, because this group has a high infection-related mortality and neurodevelopmental impairment among survivors. However, interventions should begin with prenatal initiatives, with women being treated for vaginal candidiasis, especially with preterm labor. Furthermore, policies for restrictive use of third-generation cephalosporins, H2-antagonists, proton pump inhibitors, and postnatal dexamethasone; follow of the guideline for central venous catheter care and removal; and feeding practices, with promotion of early feedings and breast milk, and supplementation with lactoferrin and or probiotics, may reduce the fungal infection. In conclusion, prophylactic systemic antifungal therapy along with comprehensive infection control measures, restrictive use of drugs and proper feeding practice reduce the incidence of invasive fungal infection in high risk very low birth weight infants in NICU. However, further study is needed for the routine use of prophylactic antifungal therapy because the effect on mortality rate was not significant and the data on the long-term neurodevelopmental consequences were limited. In addition, further data on the emergence of resistant organisms and Malassezia colonization are needed.

Lung torsion after tracheoesophageal fistula repair in an infant / 소아과

Lung torsion is a very rare event that has been reported in only 9 cases in the pediatric literature but has not yet been reported in Korean infants. We present a case of lung torsion after tracheoesophageal fistula repair in an infant. Bloody secretion from the endotracheal tube and chest radiographs and computed tomographic scan results indicated lung torsion. Emergency exploration indicated 180degrees torsion of the right upper lobe (RUL) and right middle lobe (RML). After detorsion of both lobes, some improvement in the RUL color was observed, but the color change in the RML could not be determined. Although viability of the RML could not be proven, pexy was performed for both the lobes. Despite reoperation, clinical signs and symptoms did not improve. The bronchoscopy revealed a patent airway in the RUL but not in the RML. Finally, the RML was surgically removed. The patient was discharged on the 42nd day after birth.

Changes in Birth Rate, Perinatal Risk Factors and Outcome in Newborns in Multi-cultural Family: Ten-year Experience in One Center

PURPOSE: The aim of this study is to investigate the periodical changes of birth rate, perinatal risk factors and outcome of newborns in multi-cultural families with Korean male and non-Korean, Asian female in Gwangju, Chonnnam province. METHODS: We enrolled newborns born in or transferred from other hospital to Chonnam National University Hospital between January 2001 and December 2010. They were categorized into two periods: data from 2001 to 2005 was defined as period I and from 2006 to 2010 was defined as period II. The clinical data of the birth rate, perinatal risk factors and outcome were retrospectively reviewed. RESULTS: Number and rate of newborns in multicultural families increased significantly. The nationality of the mother changed: Vietnamese, Chinese and Cambodian significantly increased; and Japanese and Filipino significantly decreased. As the maternal age tended to be younger in period II, the age gap between the spouses increased, and the paternal age significantly increased, especially in age group of over 45 year-old. Among other perinatal risk factors, premature rupture of membranes and oligohydramnios were decreased. There were no statistical difference in morbidity (except hyperbilirubinemia) and mortality. However, congenital anomalies significantly increased. CONCLUSION: As the number of newborns in multicultural families has increased, the incidence of congenital anomalies also increased. We carefully presumed this result could be caused by increasing paternal age. Careful concern and management are needed for these families and further prospective studies are needed in a larger number of subjects.

Safety and Reactogenicity of the Inactivated Poliomyelitis Vaccine (Poliorix(TM)) in Korea (2006-2012) / 소아감염

OBJECTIVE: As per the requirement of Korean Food and Drug Administration, this post-marketing surveillance was conducted in Korea to evaluate the safety and reactogenicity of Poliorix(TM) following its introduction in 2006. METHODS: In this open, multicenter study, the vaccine was administered as per the current practice of Korean doctors and in reference to the guidebook by the Korean Pediatric Society and as indicated in the Korean label which was as follows - for primary vaccination three doses were given to infants at ages 2, 4 and 6 months whereas, for the booster dose a single dose was given to children aged 4-6 years. Safety data during this six year surveillance was collected using diary cards which were distributed to the parents to record adverse events. RESULTS: A total of 639 subjects were enrolled into the study. Of these, 617 subjects and 22 subjects received the vaccine as a primary and booster dose, respectively. At least one unsolicited symptom was reported in 11.4% (73/639) of the subjects during the 7-day follow-up period; upper respiratory tract infection (2.5%;16/639) was the most frequently reported unsolicited symptom. One subject reported at least one unsolicited symptom (gastroenteritis) of grade 3 intensity within the 31-day post-vaccination period. Approximately 1.7% (11/639) of subjects reported 13 serious adverse events (SAEs). All SAEs were resolved by the end of the study. CONCLUSION: In Korea, primary and booster vaccination with Poliorix(TM) was well-tolerated in healthy subjects when administered according to the prescribing information as part of routine clinical practice.

Effect of Indomethacin Treatment in Full-term Infants with Symptomatic Patent Ductus Arteriosus / 대한주산의학회잡지

PURPOSE: Indomethacin has been reported as the prophylaxis and initial treatment of preterm infants with patent ductus arteriosus (PDA). However, there was controversy over indomethacin treatment in full-term infants with symptomatic PDA. Therefore, we evaluate the effect of indomethacin as a treatment of full-term infants with symptomatic PDA. METHODS: A retrospective study was performed to evaluate the effectiveness of indomethacin in full-term infants who had birth weight > or =2,500 g and a gestational age > or =37 weeks with symptomatic PDA at Chonnam National University Hospital between January 2007 and December 2009. According to responsiveness of indomethacin, we classified them into three groups: 1) complete responder which were completely closed after indomethacin treatment, 2) partial responder which were incompletely closed but symptoms were improved, 3) non responder which were conducted surgical ligation because did not respond. RESULTS: Among the total 29 full-term infants treated with indomethacin, 13 (44.8%) were complete responder, 8 (27.6%) were partial responder, and 8 (27.6%) were non responder. There were no significant differences in birth weight, narrow diameter of PDA, and dose of indomethacin between three groups. However, the age at initiation of treatment using indomethacin of complete (4.8+/-4.5 days, P=0.03) and partial responder (6.3+/-2.0 days, P=0.04) were earlier than those of non responder (13.8+/-8.1 days). CONCLUSION: Indomethacin can expect an effective treatment of PDA in full-term infants prior to surgical ligation.

Evaluation of Immunogenicity and Safety of the New Tetanus-Reduced Diphtheria (Td) Vaccines (GC1107) in Healthy Korean Adolescents: A Phase II, Double-Blind, Randomized, Multicenter Clinical Trial

This phase II clinical trial was conducted to compare the immunogenicity and safety of a newly developed tetanus-reduced diphtheria (Td) vaccine (GC1107-T5.0 and GC1107-T7.5) and control vaccine. This study was also performed to select the proper dose of tetanus toxoid in the new Td vaccines. Healthy adolescents aged between 11 and 12 yr participated in this study. A total of 130 subjects (44 GC1107-T5.0, 42 GC1107-T7.5 and 44 control vaccine) completed a single dose of vaccination. Blood samples were collected from the subjects before and 4 weeks after the vaccination. In this study, all subjects (100%) in both GC1107-T5.0 and GC1107-T7.5 groups showed seroprotective antibody levels (> or = 0.1 U/mL) against diphtheria or tetanus toxoids. After the vaccination, the geometric mean titer (GMT) against diphtheria was significantly higher in Group GC1107-T5.0 (6.53) and GC1107-T7.5 (6.11) than in the control group (3.96). The GMT against tetanus was 18.6 in Group GC1107-T5.0, 19.94 in GC1107-T7.5 and 19.01 in the control group after the vaccination. In this study, the rates of local adverse reactions were 67.3% and 59.1% in GC1107-T5.0 and GC1107-7.5, respectively. No significant differences in the number of adverse reactions, prevalence and degree of severity of the solicited and unsolicited adverse reactions were observed among the three groups. Thus, both newly developed Td vaccines appear to be safe and show good immunogenicity. GC1107-T5.0, which contains relatively small amounts of tetanus toxoid, has been selected for a phase III clinical trial.

Usefulness of Neuroimaging Study in Cephalohematoma of Newborn / 대한주산의학회잡지

PURPOSE: Cephalohematoma is a common birth injury that is absorbed spontaneously at most of the time. However, it sometimes can be accompanied with severe intracranial lesion which may ultimately lead to death. The aim of this study is to know when the CT and/or MRI study is useful by analyzing the risk factors for intracranial lesion associated with cephalohematoma in newborn. METHODS: From January 2006 to December 2010, 162 infants diagnosed with cephalohematoma were studied retrospectively. We examined the demographic and clinical data, and also examined the reasons for neuroimaging studies with CT/MRI findings. The risk factors for intracranial lesion associated with cephalohematoma were analyzed by uni- and multivariate analysis as well. RESULTS: Among 162 patients, many were groups of normal birth weight, first-born, singlet or vaginally delivered newborns. Of these patients, 13.6% had neurologic symptoms, 4.1% had other birth injuries, and 1.2% died with associated intracranial lesion. Parietal region was the commonest site and most were greater than 3 cm in diameter. Simple skull X-ray was performed in 56.8% and CT/MRI in 28.4%. Giant hematoma and neurologic symptom were the two common reasons for requesting CT/MRI. Intracranial lesions such as hemorrhage, hypoxic-ischemic encephalopathy, and infarction were shown in almost two thirds of patients who performed CT/MRI. Multivariate analysis showed that significant risk factors were being first-born, having large size hematoma (> or = 5 cm) or having seizure. CONCLUSION: CT and/or MRI is recommended in cephalohematoma of newborn, especially for first-born baby with large size hematoma (> or = 5 cm) or seizure.