Abstract:
:During normal pregnancy there is a decrease in the hematocrit due to a disproportionate increase in the blood volume compared with the red cell mass. Using a new enzyme-linked immunoassay (Amgen Diagnostics), serum erythropoietin was quantified in normal nonanemic pregnancies throughout gestation and in third trimester anemic patients. We found that the mean hematocrit in normal pregnancy reached a nadir late in the second trimester and the serum erythropoietin plateaued at a 50% increase. Those pregnancies complicated by anemia defined by a hematocrit less than 30 vol% demonstrated a statistically significant increase in serum erythropoietin above those not anemic.
journal_name
Am J Perinatoljournal_title
American journal of perinatologyauthors
Harstad TW,Mason RA,Cox SMdoi
10.1055/s-2007-994778subject
Has Abstractpub_date
1992-07-01 00:00:00pages
233-5issue
4eissn
0735-1631issn
1098-8785journal_volume
9pub_type
杂志文章abstract:BACKGROUND:Retinopathy of prematurity (ROP) is a significant cause of childhood blindness. AIM:The aim of this study is to determine the feasibility of remifentanil analgesia during laser treatment of ROP performed in the neonatal intensive care unit (NICU). PATIENTS AND METHODS:Remifentanil was infused continuously ...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0034-1370348
更新日期:2014-11-01 00:00:00
abstract::The purpose of this study was to examine the maternal risk factors associated with early onset Group B streptococcus (GBS) sepsis and determine the potential impact of intrapartum chemoprophylaxis using these risk factors. Using a computerized perinatal database, 26,525 deliveries over a five-year period (1989 to 1994...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-994433
更新日期:1996-11-01 00:00:00
abstract::A prospective study of 377 premature infants (less than or equal to 1500 gm) was undertaken to delineate the natural history of subependymal/intraventricular hemorrhage (S/IVH) and its complications using ultrasound (US) and computed tomography (CT). Low grade (I, II) S/IVH had a low mortality while higher grades (III...
journal_title:American journal of perinatology
pub_type: 杂志文章,评审
doi:10.1055/s-2007-999929
更新日期:1985-04-01 00:00:00
abstract::Ehlers-Danlos syndrome type IV (EDS IV) is a rare but serious disorder of connective tissue that is characterized by the abnormal production or secretion of type III collagen. Experience with pregnant patients exhibiting this syndrome is limited. This report describes the successful management of a pregnancy in a woma...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-999756
更新日期:1987-04-01 00:00:00
abstract::Objective To evaluate if in high-risk non-extracorporeal membrane oxygenation (ECMO)-treated congenital diaphragmatic hernia (CDH) survivors, ventilatory time (VT) is correlated to and can be used as clinical marker of neurodevelopmental delay at 2 years of age. Study Design Cohort study was conducted between 2008 and...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0036-1586120
更新日期:2017-02-01 00:00:00
abstract::Infection-related neonatal mortality due to omphalitis in developing country home births is an important public health problem. Three cluster randomized trials of 4% chlorhexidine applied to the umbilical cord stump from once to multiple times in the days following a home birth have evaluated this intervention compare...
journal_title:American journal of perinatology
pub_type: 杂志文章,评审
doi:10.1055/s-0032-1329695
更新日期:2013-09-01 00:00:00
abstract:OBJECTIVES:This article prospectively examines the use of ultrasound for antenatal detection of abnormal placental cord insertion (PCI) and compares the antenatal classification with delivered placental classification. STUDY DESIGN:This prospective cohort study examined 277 singleton pregnancies in a tertiary center. ...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0039-3400309
更新日期:2020-01-01 00:00:00
abstract::The incidence of triplet pregnancies has increased several times due to the widespread use of ovulation induction agents. Premature delivery is the main complication of triplet gestations. In twin conceptions it was shown definitely that elective cervical suture does not prolong these pregnancies. However, in higher o...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-994691
更新日期:1993-01-01 00:00:00
abstract:OBJECTIVE:To determine the risk of gestational diabetes mellitus (GDM) and insulin resistance (IR) in obesity defined by body mass index (BMI), waist-to-hip ratio (WHR), or both combined. METHODS:Secondary analysis of a randomized multicenter trial of antioxidant supplementation versus placebo in nulliparous low-risk ...
journal_title:American journal of perinatology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1055/s-0035-1562928
更新日期:2016-01-01 00:00:00
abstract::We sought to describe a case series and literature review of uterine rupture in the absence of a previous cesarean delivery. In addition to four cases in our institution, a search of the literature from 1994 to 2008 identified cases of uterine rupture unrelated to a prior cesarean. Uterine rupture in the absence of a ...
journal_title:American journal of perinatology
pub_type: 杂志文章,评审
doi:10.1055/s-0029-1223287
更新日期:2009-11-01 00:00:00
abstract::The aim of this study was to determine the relationship between maternal serum homocysteine levels in preeclampsia and the severity of the disease, neonatal serum homocysteine levels, maternal complications, and fetal outcome. Fifty pregnant women were included in this prospective study, of which 25 were severe (group...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2005-918889
更新日期:2006-01-01 00:00:00
abstract:OBJECTIVE: The study objective was to assess the correlation between hypernatremia during the first week of life and neurodevelopmental outcomes at 18 months of corrected age in premature infants. STUDY DESIGN: A retrospective observational study of preterm infants born at less than 32 weeks of gestation who had a neu...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0040-1716845
更新日期:2020-09-24 00:00:00
abstract:OBJECTIVE:To develop a model to predict cesarean-associated red blood cell transfusion. STUDY DESIGN:Secondary analysis of all cesarean deliveries in the Maternal-Fetal Medicine Units Network Cesarean Registry. Using a split-sample technique, the derivation group was used to identify associated factors and build predi...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0039-1678604
更新日期:2019-07-01 00:00:00
abstract:BACKGROUND:Obesity is associated with increased risk of stillbirth, although the mechanisms are unknown. Obesity is also associated with inflammation. Serum ferritin, C-reactive protein, white blood cell count, and histologic chorioamnionitis are all markers of inflammation. OBJECTIVE:This article determines if inflam...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0038-1639340
更新日期:2018-09-01 00:00:00
abstract::Background Late-onset sepsis (LOS) in very low-birth-weight (VLBW) infants is associated with significant morbidity and mortality. Objectives To determine the incidence of LOS workup, association, and predictive value of clinical indicators leading to culture-positive versus culture-negative sepsis workup. Methods All...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0036-1579648
更新日期:2016-07-01 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
doi:10.1055/s-2007-999420
更新日期:1991-11-01 00:00:00
abstract:OBJECTIVE: The aim of the study is to investigate factors affecting total sleep time (TST) during infant polysomnography (PSG) and assess if <4 hours of TST is sufficient for accurate interpretation. STUDY DESIGN: Overall, 242 PSGs performed in 194 infants <6 months of chronological age between March 2013 and December...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0040-1718948
更新日期:2020-10-27 00:00:00
abstract::Our purpose was to evaluate the impact of intravenous and oral tocolysis on prolongation of gestation for women with preterm uterine contractions and/or labor. Candidates for evaluation and treatment including women with contractions between 24 and 35 weeks. Two hundred women (group I) without cervical changes met the...
journal_title:American journal of perinatology
pub_type: 临床试验,杂志文章
doi:10.1055/s-2007-994169
更新日期:1997-08-01 00:00:00
abstract::There is increasing concern about Chlamydia trachomatis infection during pregnancy, because of reports of increased maternal, fetal, and neonatal risks. Amniotic fluid is known to possess antibacterial activity and has recently been shown to inhibit formation of chlamydial inclusions in McCoy cell culture. To further ...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-999341
更新日期:1991-01-01 00:00:00
abstract::Objective We aimed to evaluate which patient-level factors influence mode of delivery among candidates for operative vaginal delivery. Study Design Cross-sectional study of candidates for operative vaginal delivery from 18 hospitals over 8 years. Probabilities of mode of delivery were estimated using hierarchical logi...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0037-1601441
更新日期:2017-08-01 00:00:00
abstract::We evaluated the methodological quality of economic evaluation studies in the field of obstetrics and gynecology published in the last decade. A MEDLINE search was performed to find economic evaluation studies in obstetrics and gynecology from the years 1997 through 2009. We included full economic evaluation studies c...
journal_title:American journal of perinatology
pub_type: 杂志文章,评审
doi:10.1055/s-0032-1323591
更新日期:2013-04-01 00:00:00
abstract::The objective of this study is to review the safety and success of a trial of labor after cesarean in a group of patients managed by a solo practitioner in a rural community. This was a retrospective review of all deliveries performed over an 11-year period by a single practitioner in a rural community. Standard contr...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2003-38317
更新日期:2003-02-01 00:00:00
abstract::Our objective was to compare the incidence of recurrent spontaneous preterm delivery (SPTD) in patients with cervical cerclage treated with weekly 17 alpha-hydroxyprogesterone caproate (17P) injections versus daily outpatient nursing surveillance (ONS) without 17P. Included in this retrospective cohort study were sing...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2008-1064935
更新日期:2008-05-01 00:00:00
abstract::Multiple gestations are increasing in frequency secondary to assisted reproductive technologies; therefore, it will become increasingly important to know how to manage a multiple pregnancy in which an in utero fetal death has occurred. This case report describes the spontaneous resolution of maternal hypofibrinogenemi...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-994628
更新日期:1993-11-01 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
doi:10.1055/s-0038-1660463
更新日期:2018-12-01 00:00:00
abstract:OBJECTIVE:Although neurodevelopmental outcomes related to the management of patent ductus arteriosus with intravenous indomethacin and ibuprofen are known, little data on the long-term effects of oral ibuprofen can be found in the literature. METHOD:A follow-up study of 99 infants with birth weight ≤ 1,500 g and gesta...
journal_title:American journal of perinatology
pub_type: 杂志文章,随机对照试验
doi:10.1055/s-0033-1333667
更新日期:2013-11-01 00:00:00
abstract:OBJECTIVE: New treatments are needed for multidrug-resistant (MDR) gram-negative infections in neonates. Ceftolozane/tazobactam is a β-lactam/β-lactamase inhibitor combination that has broad-spectrum activity against most common gram-negative bacteria, including MDR strains. We evaluated pharmacokinetics (PK) and safet...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0039-3402719
更新日期:2020-01-07 00:00:00
abstract::Caffeine is commonly used in the treatment of apnea of prematurity. The skin of preterm infants varies considerably in its level of maturity. To understand skin absorption in low birthweight infants (less than 1500 gm) with gestational age between 26 and 34 weeks, a group of 56 preterm babies was studied after percuta...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-999282
更新日期:1992-09-01 00:00:00
abstract::Intra-amniotic infection is often the cause of a second-trimester abortion. The bacterial species involved include bacteria with low pathogenicity like Ureaplasma urealyticum and various Mycoplasma species. In this case we describe an intra-amniotic infection caused by Capnocytophaga sputigena, often found in the norm...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-993854
更新日期:1999-01-01 00:00:00
abstract::Community-acquired pneumonia (CAP) is the leading cause of death in children < 5 years of age worldwide. It is also one of the most frequent infectious diseases in children, leading to large antibiotic use and hospitalization even in the industrialized countries. However, the optimal management of CAP in children is s...
journal_title:American journal of perinatology
pub_type: 杂志文章,评审
doi:10.1055/s-0039-1691801
更新日期:2019-07-01 00:00:00