Abstract:
:It is well established that ultrasound measurement of femur length and biparietal diameter are comparably accurate estimators of gestational age when obtained in the first half of pregnancy. Both estimators, however, become less accurate later in pregnancy. The present study compares the relative accuracy of these estimators when obtained in the third trimester. It is concluded from linear regression analysis that the correlation between gestational age estimated from femur length and the actual gestational age is stronger than that between gestational age estimated from biparietal diameter and actual gestational age. Furthermore, gestational age calculated from femur length is significantly more likely to be within 2 weeks (P less than or equal to .01) and 3 weeks (P less than or equal to .05) of actual gestational age than is gestational age calculated from biparietal diameter. Estimating gestational age from the mean of the gestational age based on biparietal diameter and that based on femur length is less accurate than estimating gestational age from femur length alone.
journal_name
Am J Perinatoljournal_title
American journal of perinatologyauthors
Egley CC,Seeds JW,Cefalo RCdoi
10.1055/s-2007-999837subject
Has Abstractpub_date
1986-04-01 00:00:00pages
77-9issue
2eissn
0735-1631issn
1098-8785journal_volume
3pub_type
杂志文章abstract:BACKGROUND:Bacillus Calmette-Guerin (BCG) scar formation is considered a visual marker of vaccination and cell-mediated immune response. This study characterized the association between pregnancy and birth characteristics with BCG scar formation. STUDY DESIGN:Pregnant women were enrolled prospectively. Infants were fo...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0038-1676614
更新日期:2019-10-01 00:00:00
abstract:OBJECTIVE:To determine the associations of measured protein, energy, and protein-to-energy (PER) intakes with body composition in human milk (HM)-fed preterm infants. STUDY DESIGN:Neonates born at < 33 gestational weeks were eligible. Standard fortification method with modular supplements was used and the HM compositi...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0038-1626717
更新日期:2018-07-01 00:00:00
abstract::We have examined the trend in the incidence and mortality of intraventricular hemorrhage (IVH) in low birthweight infants from 1981 through 1984. During this time we admitted 407 infants in the first week of life with a birthweight less than or equal to 1500 gm in whom a cranial ultrasonogram or autopsy had been perfo...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-999896
更新日期:1986-10-01 00:00:00
abstract::Trichosporon beigelii is an uncommon cause of sepsis in low-birth-weight infants. We present two cases of neonatal trichosporonosis and two cases of neonatal trichosporon colonization to familiarize neonatologists with this entity and to discuss management considerations. A 23-week-gestation male developed clinical ev...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-994109
更新日期:1997-02-01 00:00:00
abstract:OBJECTIVES:This study aims to compare women with early (13-16 years), late teenage (17-19 years), and adult (25-29 years) pregnancies regarding pregnancy risk factors and reproductive outcomes. METHODS:An observational study, utilizing medical charts and direct interview, conducted in an academic hospital during Janua...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0035-1565917
更新日期:2016-03-01 00:00:00
abstract::The objective of this paper is to evaluate the efficacy of various magnetic resonance imaging (MRI) sequences and the general usefulness of prenatal MRI in determining the position of the fetal liver and visualizing lung tissue in fetuses who have congenital diaphragmatic hernia (CDH). This was a retrospective review ...
journal_title:American journal of perinatology
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更新日期:1999-01-01 00:00:00
abstract::Premature birth before 37 weeks of gestation is a significant public health problem. Each year, 4.5 million premature infants are born worldwide. Despite extensive research and a variety of interventions, the rate of preterm birth has steadily increased over the past 20 years and reached a high of 12.8% in 2006. The e...
journal_title:American journal of perinatology
pub_type: 杂志文章
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abstract::The aim of this study was to determine the risk of respiratory distress syndrome (RDS) and neonatal death (NND) in relation to birth weight in preterm neonates. A group of 255 singleton preterm neonates born at 22-36 weeks were examined. The mean birth weight for each gestational week was estimated from a fitted curve...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-994327
更新日期:1997-10-01 00:00:00
abstract::The purpose of this study was to determine the short-term outcome of newborns less than 30 weeks gestation when there is definite placental histologic chorioamnionitis. A retrospective analysis was performed of records of all neonates delivered at our institution from January 1989 through January 1999. This informatio...
journal_title:American journal of perinatology
pub_type: 杂志文章
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更新日期:2005-04-01 00:00:00
abstract::The aim of this study is to identify clinical, etiologic, and laboratory factors that potentiate adverse outcome of hyperbilirubinemia among term and late preterm neonates in logistic regression analysis. A retrospective cohort of infants with total serum bilirubin (TSB) ≥ 20 mg/dL from 1995 to 2007 was surveyed. Eigh...
journal_title:American journal of perinatology
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更新日期:2011-05-01 00:00:00
abstract::The Advisory Committee on Immunization Practices of the Centers for Disease Control and Prevention recommends influenza vaccination for women who will be in the second or third trimester of pregnancy during the influenza season. We analyzed hospital admissions with principal diagnoses of influenza or pneumonia and inf...
journal_title:American journal of perinatology
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更新日期:2004-08-01 00:00:00
abstract:OBJECTIVE:The aim of the article is to review the effectiveness of neonatal noninvasive high-frequency ventilation (NIHFV) in preventing endotracheal mechanical ventilation. STUDY DESIGN:Retrospective case series including all 79 instances of NIHFV use at four participating centers between July 2010 and September 2012...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0034-1381317
更新日期:2015-02-01 00:00:00
abstract::The use of transabdominal vibroacoustic stimulation has been shown to improve the efficiency of antepartum fetal surveillance. The ability of the fetus to habituate to such a stimulus has also been suggested as a means of assessing the function of the central nervous system. The purpose of this blinded prospective inv...
journal_title:American journal of perinatology
pub_type: 杂志文章
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更新日期:1991-11-01 00:00:00
abstract:OBJECTIVE:Our study identified risk factors for the development of clinically identifiable catheter-associated thrombosis (CT). STUDY DESIGN:We performed a retrospective cohort study of neonates in whom a central catheter was present. A total of 1,475 catheters were identified in 766 patients during a 36-month study p...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0038-1667377
更新日期:2019-02-01 00:00:00
abstract:OBJECTIVE:This study aims to develop a scoring system for the prediction of bronchopulmonary dysplasia (BPD). METHODS:Medical records of 652 infants whose gestational age and birth weight were below 32 weeks and 1,500 g, respectively, and who survived beyond 28th postnatal day were reviewed retrospectively. Logistic r...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0034-1393935
更新日期:2015-06-01 00:00:00
abstract::Gestational diabetes mellitus (GDM) has increased dramatically in the past 20 years together with the obesity epidemic. Mirroring the increase in incidence of GDM is increasing use of endocrine disrupting chemicals (EDCs). EDCs are structurally similar to endogenous hormones and interfere with synthesis, secretion, ac...
journal_title:American journal of perinatology
pub_type: 杂志文章,评审
doi:10.1055/s-0036-1586500
更新日期:2016-11-01 00:00:00
abstract::This study assessed whether the amniotic fluid index (AFI) or the single deepest pocket (SDP) is the best technique to estimate amniotic fluid volume. The AFI and SDP were compared to a dye-determined or directly measured amniotic fluid volume. A PUBMED search from 1990 to 2006 was conducted using the search terms "si...
journal_title:American journal of perinatology
pub_type: 杂志文章,评审
doi:10.1055/s-2007-986689
更新日期:2007-10-01 00:00:00
abstract:OBJECTIVE:Our aim was to estimate the incidence of unintentional hysterotomy extension at the time of cesarean delivery and to identify associated risk factors and maternal morbidity. STUDY DESIGN:We conducted a secondary analysis of a randomized controlled trial evaluating chlorhexidine-alcohol versus iodine-alcohol ...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0038-1676112
更新日期:2019-08-01 00:00:00
abstract::The purpose of this study was to compare the delayed response to Bacillus Calmette-Guérin (BCG) immunization in preterm infants 31.4 to 34.6 weeks of age with full-terms infants by tuberculin test (tuberculin skin test with purified protein derivative [PPD]). One hundred newborns were studied from November 2000 to Apr...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-970080
更新日期:2007-03-01 00:00:00
abstract::Rotavirus is the most common nonseasonal vaccine preventable illness. Despite increased severity of rotaviral illness in early infancy, most neonatal intensive care units (NICU) do not administer rotavirus vaccination either during the NICU stay at age of eligibility or at discharge as the Advisory Committee on Immuni...
journal_title:American journal of perinatology
pub_type: 杂志文章,评审
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更新日期:2018-12-01 00:00:00
abstract:OBJECTIVE: The aim was to determine the fetal umbilical blood gas effects of supplemental maternal oxygenation compared with room air (RA) during term planned cesarean delivery. METHODS: This is a prospective randomized controlled study of singleton planned cesarean deliveries randomized to receive supplemental oxygen...
journal_title:American journal of perinatology
pub_type: 杂志文章,随机对照试验
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更新日期:2018-01-01 00:00:00
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journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-1999-6803
更新日期:1999-01-01 00:00:00
abstract::The Diabetes in Pregnancy Study Group of North America (DPSG-NA) was founded in 1997 in San Antonio, Texas, out of the recognition that the field of maternal-fetal medicine should support and conduct research to address the specialized needs of pregnant women with type 1, type 2, or gestational diabetes mellitus. Sinc...
journal_title:American journal of perinatology
pub_type: 历史文章,杂志文章
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更新日期:2016-11-01 00:00:00
abstract::Two cases of inadvertent third trimester amniocenteses occurring during attempted spinal tap and culdocentesis are presented. These hitherto undescribed occurrences stress potential complications of these invasive diagnostic procedures in the gravid woman. ...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-994618
更新日期:1993-11-01 00:00:00
abstract::We studied 16 women, at 32 weeks' or more gestation who required magnesium sulfate (MgSO4) therapy for preterm labor or preeclampsia. A 60-minute Doppler fetal heart rate (FHR) tracing, analyzed by the Oxford Sonicaid System 8000, was obtained for 1 hour before and 2 hours after each patient received intravenous MgSO4...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-994468
更新日期:1995-07-01 00:00:00
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journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2002-20175
更新日期:2002-01-01 00:00:00
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journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0028-1085065
更新日期:2008-09-01 00:00:00
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journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-993890
更新日期:1998-01-01 00:00:00
abstract::Previous work has shown that fetal hydrographic magnetic resonance imaging (MRI) provided additional information complementary to T2-weighted single-shot fast spin echo (ssFSE) images. The objective of this study was to determine if hydrographic MRI provides better conspicuity of fetal eye structures compared with ssF...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0031-1295636
更新日期:2012-04-01 00:00:00
abstract::One hundred twenty-one patients underwent an ultrasound examination within 48 hours of delivery to assess prospectively the reliability of the diagnosis of intrauterine growth retardation. Sonographic parameters examined included the abdominal circumference, sonographic estimate of fetal weight, the head to abdominal ...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-999622
更新日期:1989-10-01 00:00:00