OBJECTIVE: This study estimated the effects of weekend and off-hour childbirth and the size of perinatal medical care center on the incidence of cerebral palsy. METHODS: The cases were all children with severe cerebral palsy born in Japan from 2009 to 2012 whose data were stored at the Japan Obstetric Compensation System for Cerebral Palsy database, a nationally representative database. The inclusion criteria were the following: neonates born between January 2009 and December 2012 who had a birth weight of at least 2000 g and gestational age of at least 33 weeks and who had severe disability resulting from cerebral palsy independent of congenital causes or factors during the neonatal period or thereafter. Study participants were restricted to singletons and controls without report of death, scheduled cesarean section, or ambulance transportation. The controls were newborns, randomly selected by year and type of delivery (normal spontaneous delivery without cesarean section and emergency cesarean section) using a 1:10 case to control ratio sampled from the nationwide Japan Society of Obstetrics and Gynecology database. RESULTS: A total of 90 cerebral palsy cases and 900 controls having normal spontaneous delivery without cesarean section were selected, as were 92 cerebral palsy cases and 920 controls with emergent cesarean section. A significantly higher risk for cerebral palsy was found among cases that underwent emergent cesarean section on weekends (odds ratio [OR] 1.72, 95% confidence interval [CI] 1.06-2.81) and during the night shift (OR 2.29, 95% CI 1.30-4.02). No significant risk was found among normal spontaneous deliveries on weekends (OR 1.63, 95% CI 0.97-2.73) or during the quasi-night shift (OR 1.26, 95% CI 0.70-2.27). Regional perinatal care centers showed significantly higher risk for cerebral palsy in both emergent cesarean section (OR 2.35, 95% CI 1.47-3.77) and normal spontaneous delivery (OR 2.92, 95% CI 1.76-4.84). CONCLUSION Labor on weekends, during the night shift, and at regional perinatal medical care centers was associated with significantly elevated risk for cerebral palsy in emergency cesarean section.
Case-Control Studies ; Cerebral Palsy ; epidemiology ; etiology ; Delivery, Obstetric ; statistics & numerical data ; Health Facilities ; statistics & numerical data ; Humans ; Incidence ; Infant, Newborn ; Japan ; epidemiology ; Parturition ; Perinatal Care ; statistics & numerical data ; Retrospective Studies ; Time Factors

OBJECTIVE: The objective of this study was to reinterpret the neurodevelopmental prognostic factors that are associated with birth head injury by performing a long-term follow-up. METHODS: Seventy-three neonates with head injuries were retrospectively analyzed after a duration of 10.0±7.3 years to determine the correlations between perinatal factors, including gender, head circumference, gestational age, body weight, and mode of delivery, and head injury factors from radiologic imaging with social, fine motor, language, and motor developmental quotients. RESULTS: There was a statistically significant difference between perinatal factors and head injury factors with respect to head circumference, body weight, gestational age, mode of delivery, Apgar scores at 1 min, cephalohematoma, subdural hemorrhage, subarachnoid hemorrhage, and hypoxic injury, but no direct correlation by regression analysis was observed between perinatal factors and developmental quotients. Of the head injury factors, falx hemorrhage showed a significant indirect relationship with the language and motor developmental quotients. Mode of delivery, subgaleal hematoma, cephalohematoma, greenstick skull fracture, epidural hemorrhage (EDH), tentorial hemorrhage, brain swelling, and hypoxic injury showed an indirect relationship with social development. CONCLUSION: In terms of perinatal factors and head injury factors, mode of delivery, subgaleal hematoma, cephalohematoma, greenstick skull fracture, EDH, tentorial hemorrhage, falx hemorrhage, brain swelling, and hypoxic injury displayed an indirect relationship with long-term development, and therefore these factors require particular attention for perinatal care.
Birth Injuries ; Body Weight ; Craniocerebral Trauma* ; Follow-Up Studies ; Gestational Age ; Head* ; Hematoma ; Hematoma, Subdural ; Hemorrhage ; Humans ; Infant, Newborn* ; Intracranial Hemorrhages ; Parturition* ; Perinatal Care ; Retrospective Studies ; Skull Fractures ; Social Change ; Subarachnoid Hemorrhage

BACKGROUND: Management of pregnant women at high risk of pre-eclampsia (PE) requires frequent monitoring, with referral to specialized perinatal care centers. Reliable tests are necessary to improve prediction of PE and related complications and to assess disease severity and progression. An imbalance in two biomarkers, soluble fms-like tyrosine kinase 1 (sFlt-1) and placental growth factor (PlGF), is involved in PE pathogenesis. The sFlt-1 to PlGF ratio is increased in pregnant women before the onset of PE. An elevated ratio is highly predictive of PE, whereas the diagnosis of PE can be ruled out within one week for low ratios. The main objective of this study was to assess whether a low sFlt-1/PlGF ratio, below a cutoff of 38, can predict the absence of PE within one week. METHODS: We performed a prospective, monocentric, observational study to evaluate serum sFlt-1/PlGF ratio (Roche Diagnostics Cobas e411 system) for predicting -PE in a group of 67 high-risk pregnant women (20–37 gestation weeks). RESULTS: Among the 67 patients included, 53 had a sFlt-1/PlGF ratio lower than 38; none developed subsequent PE leading to a negative predictive value of 100%. Eight patients developed clinical PE. The positive predictive value was 21% at one week and 18% at four weeks, in accordance with previous studies. CONCLUSIONS: The serum sFlt-1/PlGF ratio showed highly predictive performances for ruling out PE. Using these biomarkers in routine management of PE may improve clinical care and avoid inappropriate hospitalization, which has a significant economic impact.
Biomarkers ; Diagnosis ; Female ; Hospitalization ; Humans ; Observational Study ; Perinatal Care* ; Pre-Eclampsia* ; Pregnancy ; Pregnant Women ; Prospective Studies ; Referral and Consultation ; Vascular Endothelial Growth Factor Receptor-1

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.
Autoimmune Diseases ; Body Size ; Demography ; Fertilization ; Hemorrhage ; Humans ; Incidence ; Infant ; Infant Mortality ; Infant, Newborn ; Infant, Premature ; Jeollanam-do ; Maternal Mortality ; Meconium Aspiration Syndrome ; Mortality ; Mothers ; Perinatal Care ; Pregnancy, High-Risk ; Premature Birth ; Retrospective Studies

Background: The RxBox 2 Model 2 is a portable device developed by the National TeleHealth Center capable of measuring various physiologic signals including fetal heart beat and uterine contractions, making it able to act as a cardiotocogram. The first model of the RxBox 2 was used in an observational cross-sectional study and was noted to have a low accuracy compared with the standard cardiotocogram. An adjustment was made with the objective of improving the sensitivity and specificity. Objective: The objective of this diagnostic cross-sectional study is to validate the RxBox 2 Model 2 by comparing its sensitivity and specificity with that of the standard cardiotocogram in detecting Category II traces. Results: The results of this study exhibited an improvement in the sensitivity (77% versus 60%) and specificity (71% versus 61%). In terms of accuracy, there is no significant difference between the high risk and non-high risk groups. These contribute to the validity of RxBox 2 Model 2 as an acceptable screening tool. Recommendation Further studies may still be done to improve the correlation of each component of the trace to that of the standard cardiotocogram. Detailed analysis of the interpretations with corresponding interventions and perinatal outcomes may aid in validating the device.
Telemedicine ; Perinatology ; Perinatal Care ; Maternal Health

OBJECTIVE: To determine whether late preterm twin neonates have a more favorable perinatal outcome than singleton late preterm neonates. METHODS: We studied 401 late preterm births between 34+0 and 36+6 weeks of gestation, from January 2011 to December 2014 in our institution. We compared the maternal and neonatal characteristics and perinatal outcomes between singleton and twin pregnancies. Perinatal outcomes included Apgar score, admission to the neonatal intensive care unit (NICU) or special care nursery, duration of NICU stay, and the rate of composite morbidity (antibiotic use, hypoglycemia, hypocalcemia, hyperbilirubinemia requiring phototherapy, respiratory support, and respiratory distress syndrome). RESULTS: A total of 289 neonates were in the singleton group and 112 in the twin group. The twin group showed smaller mean birth weight despite of longer gestational age at delivery. In addition, there were significant differences in the indication of delivery and cesarean section rate between the 2 groups. Overall, the risk of composite morbidity was similar between 2 groups (odds ratio, 1.4; 95% confidence interval, 0.8 to 2.4). CONCLUSION: Our findings suggest that late preterm twins do not show a more favorable outcome than singleton late preterm births.
Apgar Score ; Birth Weight ; Cesarean Section ; Female ; Gestational Age ; Humans ; Hyperbilirubinemia ; Hypocalcemia ; Hypoglycemia ; Infant, Newborn ; Intensive Care, Neonatal ; Nurseries ; Perinatal Care ; Phototherapy ; Pregnancy ; Pregnancy, Twin* ; Premature Birth* ; Twins*

Fetal death is an important indicator of national health care. In Korea, the fetal mortality rate is likely to increase due to advanced maternal age and multiple births, but there is limited research in this field. The authors investigated the characteristics of fetal deaths, the annual changes in the fetal mortality rate and the perinatal mortality rate in Korea, and compared them with those in Japan and the United States. Fetal deaths were restricted to those that occurred at 20 weeks of gestation or more. From 2009 to 2014, the overall mean fetal mortality rate was 8.5 per 1,000 live births and fetal deaths in Korea, 7.1 in Japan and 6.0 in the United States. While the birth rate in Korea declined by 2.1% between 2009 and 2014, the decrease in the number of fetal deaths was 34.5%. The fetal mortality rate in Korea declined by 32.9%, from 11.0 in 2009 to 7.4 in 2014, the largest decline among the 3 countries. In addition, rates for receiving prenatal care increased from 53.9% in 2009 to 75.0% in 2014. Perinatal mortality rate I and II were the lowest in Japan, followed by Korea and the United States, and Korea showed the greatest decrease in rate of perinatal mortality rate II. In this study, we identified that the indices of fetal deaths in Korea are improving rapidly. In order to maintain this trend, improvement of perinatal care level and stronger national medical support policies should be maintained continuously.
Birth Rate ; Delivery of Health Care ; Fetal Death ; Fetal Mortality ; Humans ; Infant ; Infant Mortality ; Infant, Newborn ; Japan* ; Korea* ; Live Birth ; Maternal Age ; Multiple Birth Offspring ; Perinatal Care ; Perinatal Mortality* ; Pregnancy ; Prenatal Care ; Stillbirth ; United States*

PURPOSE: The study was undertaken to see whether the culturally sensitive education for perinatal care using a face to face approach improves understanding of spouse's culture, knowledge of pregnancy and parenting skills, and self-efficacy among Korean husbands and Vietnamese wives. METHODS: This study has a pre- and post-test study design conducted in a total of 13 couples who live in Seoul and agreed to participate. The education program consisted of lecture and hands on practice. The self-administered questionnaires and the checklist developed based on the educational purpose were used to assess the education effects. RESULTS: The knowledge scores on Korean/Vietnamese culture, pregnancy and parenting skills as well as the performance scores on hand washing, pelvic strengthening, feedings and newborn bathing techniques were significantly improved in both husbands and wives after education, but pelvic floor exercises were improved only in wives. CONCLUSION: Overall, the individual education for culturally sensitive perinatal care was effective in our study participants.
Asian Continental Ancestry Group* ; Baths ; Checklist ; Education* ; Exercise ; Family Characteristics ; Hand ; Hand Disinfection ; Humans ; Infant, Newborn ; Parenting ; Parents ; Pelvic Floor ; Perinatal Care* ; Pregnancy ; Seoul ; Spouses*

OBJECTIVE: The aim of this study was to evaluate the association between prenatally diagnosed isolated single umbilical artery (iSUA) and perinatal outcomes. METHODS: We searched Medline, Embase, the Cochrane Library, and KoreaMed from inception to January 2016, with no language or regional restrictions, for cohort and case-control studies reporting on the relationship of iSUA and perinatal outcomes. We assessed the odds ratios (ORs) and 95% confidence intervals (CIs) for the occurrence of small for gestational age, preterm birth, pregnancy-induced hypertension, neonatal intensive care unit admission, and perinatal mortality in fetuses with iSUA compared with those in fetuses with three vessel cord. RESULTS: Eleven articles totaling 1,731 pregnancies with iSUA met the selection criteria. Studies varied in design, quality, outcome definition, and results. Meta-analysis carried out within predefined groups showed that the presence of an iSUA was associated with small for gestational age (OR, 2.75; 95% CI, 1.97 to 3.83; P<0.00001), preterm birth (OR, 2.10; 95% CI, 1.72 to 2.57; P<0.00001), pregnancy-induced hypertension (OR, 1.62; 95% CI, 1.00 to 2.63; P=0.05), neonatal intensive care unit admission (OR, 2.06; 95% CI, 1.33 to 3.19; P=0.001), and perinatal mortality (OR, 2.29; 95% CI, 1.32 to 3.98; P=0.003). CONCLUSION: Pregnancies complicated by iSUA are at increased risk for small for gestational age, preterm birth, pregnancy-induced hypertension, neonatal intensive care unit admission and perinatal mortality. Further, large prospective cohort studies are required to improve the quality of prenatal counseling and the neonatal care for pregnancies with iSUA.
Case-Control Studies ; Cohort Studies ; Counseling ; Female ; Fetus ; Gestational Age ; Hypertension, Pregnancy-Induced ; Infant, Newborn ; Intensive Care, Neonatal ; Odds Ratio ; Patient Selection ; Perinatal Mortality ; Pregnancy ; Premature Birth ; Prospective Studies ; Single Umbilical Artery*

OBJECTIVES: Preterm birth (PTB) is a leading cause of neonatal death and the second biggest cause of death in children under five years of age. The objective of this study was to determine the prevalence of PTB and its associated factors using logistic regression and decision tree classification methods. METHODS: This cross-sectional study was conducted on 4,415 pregnant women in Tehran, Iran, from July 6–21, 2015. Data were collected by a researcher-developed questionnaire through interviews with mothers and review of their medical records. To evaluate the accuracy of the logistic regression and decision tree methods, several indices such as sensitivity, specificity, and the area under the curve were used. RESULTS: The PTB rate was 5.5% in this study. The logistic regression outperformed the decision tree for the classification of PTB based on risk factors. Logistic regression showed that multiple pregnancies, mothers with preeclampsia, and those who conceived with assisted reproductive technology had an increased risk for PTB (p < 0.05). CONCLUSION: Identifying and training mothers at risk as well as improving prenatal care may reduce the PTB rate. We also recommend that statisticians utilize the logistic regression model for the classification of risk groups for PTB.
Cause of Death ; Child ; Classification ; Cross-Sectional Studies ; Decision Trees* ; Female ; Humans ; Infant ; Iran* ; Logistic Models* ; Medical Records ; Methods* ; Mothers ; Perinatal Death ; Pre-Eclampsia ; Pregnancy ; Pregnancy, Multiple ; Pregnant Women ; Premature Birth* ; Prenatal Care ; Prevalence* ; Reproductive Techniques, Assisted ; Risk Factors ; Sensitivity and Specificity