Abstract:
AIM:To examine the gestational age-specific distribution of twin birth weight discordance. METHODS:We analyzed all liveborn twin sets between 28 and 40 weeks' gestation from the United States 1995-1998 Multiple Matched Birth Data Set compiled by the National Center for Health Statistics. We calculated the 50th and 95th percentiles of birth weight discordance at each gestational age. Neonatal mortality rates were calculated for discordant twins at the 95th percentile of birth weight discordance for each gestational age. RESULTS:At older gestational ages, the 95th percentile of birth weight discordance resulted in an inter-twin birth weight difference of approximately 25%, a value often used to define twins as birth weight discordant. However, at earlier gestational ages, the 95th percentile of birth weight discordance was greater, reaching nearly 50% at 28 weeks. CONCLUSIONS:The inter-twin birth weight difference at the 95th percentile is greater at lower gestational ages, possibly illustrating the different nature or severity of twin birth weight discordance at an earlier gestational age.
journal_name
J Perinat Medjournal_title
Journal of perinatal medicineauthors
Kalish RB,Branum A,Sharma G,Keith LG,Blickstein Idoi
10.1515/JPM.2005.022keywords:
subject
Has Abstractpub_date
2005-01-01 00:00:00pages
117-20issue
2eissn
0300-5577issn
1619-3997journal_volume
33pub_type
杂志文章abstract::Various substances and methods are used as alternatives to corticoids for stimulating antenatal pulmonary maturation. This study discusses thyroid hormones, intralipid, ambroxol, carnitine, theophylline (aminophylline) and betasympathomimetic agents. ...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1987.15.5.453
更新日期:1987-01-01 00:00:00
abstract:OBJECTIVE:Determine social factors related to pregnancy among young adolescents. METHODS:We obtained socio-demographic data from early adolescent nulliparas aged < or = 15 years. RESULTS:During the study period at the Enrique C. Sotomayor Obstetrics and Gynecology Hospital, Guayaquil-Ecuador 201 early adolescent null...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/JPM.2004.063
更新日期:2004-01-01 00:00:00
abstract::Objectives To identify the probability of survival and severe neurodevelopmental impairment (sNDI) at which perinatal physicians would or would not offer or recommend resuscitation at birth for extremely preterm infants. Methods A Delphi process consisting of five rounds was implemented to seek consensus (>80% agreeme...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2019-0444
更新日期:2020-09-25 00:00:00
abstract::The placenta is the principal organ regulating respiratory, nutritional, endocrine and metabolic functions on behalf of the developing fetus. Changes in gene expression patterns of placenta-specific genes may influence fetal growth. We profiled the expression of 17 genes related to placenta functioning in term placent...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2017-0064
更新日期:2017-10-26 00:00:00
abstract::Objective To assess the feasibility and accuracy of point-of-care ultrasound (POCUS) in monitoring peripherally inserted central catheter (PICC) location in neonates by non-radiologist physicians. Methods A prospective cohort study compared PICC localization by ultrasound in neonates with a recent radiograph. The ultr...
journal_title:Journal of perinatal medicine
pub_type: 临床试验,杂志文章
doi:10.1515/jpm-2019-0198
更新日期:2019-11-26 00:00:00
abstract::The present experiments should show if vena caval occlusion (V. C. O.) results in a decrease in uterine blood flow and increase in uterine vascular resistance (UVR). We are further interested to know, if V. C. O. influences fetal heart rate (FHR) and fetal blood pressure (BP). ...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1975.3.4.260
更新日期:1975-01-01 00:00:00
abstract::The concentration of bupivacaine in organs of non-viable human fetuses after obstetrical epidural analgesia in customary doses was investigated. The concentrations were determined with a gas chromatograph. The material consisted of a fetus who died following termination in the 24th week of pregnancy three minutes afte...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1986.14.4.219
更新日期:1986-01-01 00:00:00
abstract:AIM:Previous data from our Kaulsdorf Cohort Study (KCS) suggest that early neonatal ingestion (1st week) of breast milk from diabetic mothers (diabetic breast milk, DBM) may increase the risk of being overweight and delay speech development in offspring of diabetic mothers (ODM). Late neonatal DBM ingestion (2nd-4th we...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/JPM.2006.095
更新日期:2006-01-01 00:00:00
abstract::Monitoring of spontaneous brain electrical activity (EEG) has three purposes: Detecting sudden loss of background activity as an early sign of brain hypoxia/ischaemia, detection of silent seizures, and helping to diagnose brain damage. Tape-recording allows storage of upto 8 channels of standard EEG for prolonged peri...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章,评审
doi:
更新日期:1994-01-01 00:00:00
abstract::Objective To determine whether the risk of intra-amniotic infection/inflammation and spontaneous preterm delivery (SPTD) varies as a function of the concentration of cervical fetal fibronectin (fFN) in patients with preterm labor and intact membranes. Methods This prospective study included 180 patients with preterm l...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2018-0351
更新日期:2019-04-24 00:00:00
abstract::Neonatal and antenatal alloimmune thrombocytopenia is caused by the placental passage of maternal antibodies directed against platelet-specific fetal antigens. This disease is analogous to Rhesus hemolytic disease of the newborn and may be complicated by intracranial hemorrhage. Following increased awareness to the di...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1991.19.6.465
更新日期:1991-01-01 00:00:00
abstract::Objective To determine the association between pre-gravid obesity and stillbirth. Methods A retrospective study of a population-based dataset of births at ≥34 weeks' gestation. We excluded fetal deaths due to lethal anomalies and intrapartum fetal deaths. We calculated the incidence of stillbirths, neonatal respirator...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2018-0266
更新日期:2019-04-24 00:00:00
abstract::Objective To compare myocardial strain and mechanical dyssynchrony in fetuses with congenital heart disease (CHD) to normal controls using speckle tracking echocardiography (STE). Methods In this comparative cross-sectional study 23 fetuses with CHD and 105 normal controls between 19 and 41 weeks of gestation were ass...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2019-0073
更新日期:2019-08-27 00:00:00
abstract:OBJECTIVE:To determine the combination of amniotic fluid (AF) tests with the best diagnostic accuracy for predicting intrauterine infection/inflammation (IUI) in patients with clinical suspicion of chorioamnionitis. STUDY DESIGN:This is a retrospective study of 34 pregnant women who presented with uterine tenderness, ...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/JPM.2011.110
更新日期:2011-09-21 00:00:00
abstract:OBJECTIVE:Placement of a cervical cerclage at mid-trimester in women at risk for preterm labor is a common procedure with apparent benefits for some women. However, the changes that occur in the cervix following this procedure remain incompletely identified. METHODS:We evaluated the endocervical concentrations of medi...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/JPM.2011.132
更新日期:2011-11-25 00:00:00
abstract:AIMS:To determine the effect of bilateral pelvic neurectomy (BPN) on cervical ripening in pregnant rats by measuring cervical extensibility and changes in collagen cross-linkages. METHODS:Timed-pregnant rats were randomly laparotomized on days 9 or 10 of gestation and the pelvic nerves were exposed and either bilatera...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/JPM.2009.043
更新日期:2009-01-01 00:00:00
abstract:AIM:The aim of this study was to assess the risk of subsequent delivery complications after extremely preterm deliveries by initial (index) pregnancy mode of delivery (MOD): cesarean (CD) versus vaginal (VD). METHODS:This is a retrospective, longitudinal cohort study using Washington State birth certificate data and I...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2013-0023
更新日期:2013-11-01 00:00:00
abstract:OBJECTIVE:Pregravid maternal weight and appropriate weight gain during pregnancy might be associated with increased cesarean section rate. STUDY DESIGN:We used data from the Slovenian National Perinatal Information System to select singleton pregnancies born at ≥38 weeks, during the period between 2003 and 2012. We ca...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2015-0117
更新日期:2016-05-01 00:00:00
abstract::We report a term infant with Pompe disease presenting in the immediate newborn period. The infant was born at 40 weeks' gestation, weighing 3600 g to a 32 year-old black female. Infant presented at delivery with massive hypertrophic cardiomyopathy and pulmonary hypertension. Diagnosis was confirmed by low alpha-glucos...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/JPM.2002.081
更新日期:2002-01-01 00:00:00
abstract::We report on a fetus with intrauterine growth restriction detected at 27 weeks' gestation, who was longitudinally followed up until delivery by cesarean section 33 days later (31 + 5 weeks) due to severe decelerations in CTG. Longitudinal Doppler assessment of the umbilical artery (UA), the middle cerebral artery (MCA...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/JPM.2001.010
更新日期:2001-01-01 00:00:00
abstract:AIMS:Thrombocytopoiesis was investigated in term newborns determining thrombopoietin (TPO), reticulated platelets (PLRET) and blood platelets (PLT) in relation to gender. PATIENTS AND METHODS:The study was undertaken on 72 healthy term newborns, 33 girls and 39 boys. They fitted all criteria for healthy term newborns....
journal_title:Journal of perinatal medicine
pub_type: 临床试验,杂志文章
doi:10.1515/JPM.2005.046
更新日期:2005-01-01 00:00:00
abstract:Objectives:The purpose of this study is to follow the birth process with transperineal ultrasonography (TPU) and predict the delivery method using angle of progression (AOP). Methods:The study included 134 patients. The AOP was examined with TPU in the lithotomy position applied at 4-h intervals, not at a time of stra...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2020-0323
更新日期:2020-09-07 00:00:00
abstract::An easily applicable score to predict the risk of prematurity (Tab. I) (defined by weight) is examined prospectively (scoring during 6 th month of pregnancy) in 431 and retrospectively (obtained after delivery) in 1183 pregnancies. In the prospective study (Tab. II) 71.4% of all pregnancies resulting in babies below 2...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1976.4.1.38
更新日期:1976-01-01 00:00:00
abstract::Intrahepatic cholestasis of pregnancy (ICP) is the most common liver disorder of pregnancy. Diagnosis is based on the clinical picture, particularly the presence of pruritus with a deterioration of liver function tests, and typically elevated serum levels of total bile acids. ICP manifests in the second half of pregna...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章,评审
doi:10.1515/jpm-2014-0089
更新日期:2015-03-01 00:00:00
abstract::The diagnostic efficiency in the prediction of intrauterine growth retardation (IUGR) of repeated measurements of the symphysis-fundus (SF) distance and repeated ultrasonic measurements of the biparietal diameter (BPD) was investigated in 377 pregnancies, all at risk for IUGR. Measurements of the SF distance were foun...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1985.13.5.227
更新日期:1985-01-01 00:00:00
abstract:OBJECTIVE:We compared a non-invasive fetal electrocardiogram (fECG) to Doppler cardiotocogram (CTG) during the 1(st) stage of labor. STUDY DESIGN:This was a prospective observational study of non-invasive fECG using five abdominal electrodes and one Doppler ultrasound probe in 27 patients. Data were analyzed for relia...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm.2010.025
更新日期:2010-03-01 00:00:00
abstract::The development of the human central nervous system (CNS) begins in the early embryonic period and proceeds through a sequence of very complicated processes long after delivery. Although the neurodevelopmental processes are genetically determined, their complexity and intensity implicates the vulnerability of the CNS ...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章,评审
doi:10.1515/JPM.2005.086
更新日期:2005-01-01 00:00:00
abstract:OBJECTIVE:To compare normal ranges of ultrasonographically measured fetal nasal bone length in the second trimester between different ethnic groups. METHOD:A prospective, non-interventional study in order to establish normal ranges of fetal nasal bone length in the second trimester in a Greek population was conducted ...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpm-2014-0296
更新日期:2016-03-01 00:00:00
abstract:AIMS:The objective of the study was to examine the effect of ranitidine on the incidence of late onset sepsis. METHODS:This study was based on information extracted from charts of 569 infants admitted to the neonatal intensive care unit (NICU) from July 2003 to July 2005. All infants admitted for seven or more days we...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/JPM.2007.017
更新日期:2007-01-01 00:00:00
abstract::In a group of 26 primiparae, 48 hours after cesarean section, we have examined the urinary estriol (E3) and serum cystine aminopeptidase (CAP). 13 patients received ampicillin treatment, and 13 patients did not. In the group of patients without antibiotic treatment the urinary estriol after 48 h reached an average val...
journal_title:Journal of perinatal medicine
pub_type: 杂志文章
doi:10.1515/jpme.1981.9.3.145
更新日期:1981-01-01 00:00:00