Abstract:
:The optimal timing for clamping the umbilical cord after birth has been a subject of controversy and debate. Although many randomized controlled trials in term and preterm infants have evaluated the benefits of delayed umbilical cord clamping versus immediate umbilical cord clamping, the ideal timing for cord clamping has yet to be established. Several systematic reviews have suggested that clamping the umbilical cord in all births should be delayed for at least 30-60 seconds, with the infant maintained at or below the level of the placenta because of the associated neonatal benefits, including increased blood volume, reduced need for blood transfusion, decreased incidence of intracranial hemorrhage in preterm infants, and lower frequency of iron deficiency anemia in term infants. Evidence exists to support delayed umbilical cord clamping in preterm infants, when feasible. The single most important clinical benefit for preterm infants is the possibility for a nearly 50% reduction in intraventricular hemorrhage. However, currently, evidence is insufficient to confirm or refute the potential for benefits from delayed umbilical cord clamping in term infants, especially in settings with rich resources.
journal_name
Obstet Gynecoljournal_title
Obstetrics and gynecologyauthors
Committee on Obstetric Practice, American College of Obstetricians and Gynecologists.doi
10.1097/01.AOG.0000423817.47165.48subject
Has Abstractpub_date
2012-12-01 00:00:00pages
1522-6issue
6eissn
0029-7844issn
1873-233Xpii
00006250-201212000-00045journal_volume
120pub_type
杂志文章,实务指引abstract:OBJECTIVE:To estimate prenatal sexually transmitted disease-human immunodeficiency virus (HIV) screening rates among insured women with prenatal care and the association of chlamydia and gonorrhea screening with Pap testing. METHODS:We estimated prenatal screening rates for syphilis, hepatitis B, HIV, chlamydia, and g...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000000756
更新日期:2015-05-01 00:00:00
abstract:OBJECTIVE:To determine the association of intimate partner violence with maternal cigarette smoking before and during pregnancy. METHODS:Data were obtained for 196,391 U.S. mothers who delivered live neonates from 2004-2008 and completed the Pregnancy Risk Assessment Monitoring System survey 2-9 months postpartum. Int...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000000609
更新日期:2015-02-01 00:00:00
abstract:OBJECTIVE:To estimate the incidence of endocervical dysplasia in women with cervical cytology of atypical squamous cells of undetermined significance (ASCUS) or low-grade squamous intraepithelial lesion (SIL) who have a satisfactory and normal colposcopic examination. METHODS:An electronic colposcopy database was revi...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(00)00821-8
更新日期:2000-06-01 00:00:00
abstract::This report describes the first known case of delayed hemorrhage of a persistent ectopic pregnancy following surgical and medical therapy. A 2.5-cm ampullary pregnancy without cardiac activity was removed by laparoscopic salpingostomy. The serum beta-hCG level before laparoscopy was 1542 mIU/mL, increasing to 3163 mIU...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1991-11-01 00:00:00
abstract:OBJECTIVE:To estimate the occurrence and to assess clinical predictors of emergent cesarean delivery in the second twin after vaginal delivery of the first twin. METHODS:We conducted a population-based cohort study, using the 1995-1997 linked mother/infant twin data from the United States. The adjusted risk ratios and...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000110248.32558.fb
更新日期:2004-03-01 00:00:00
abstract::Six patients with pure nonmosaic 46,XY gonadal dysgenesis (XY GD) and histocompatibility H-Y antigen titers in the normal male range (H-Y+) are presented. Clinical characteristics included a female phenotype, masculine skeletal characteristics, signs of virilization, and primary amenorrhea. All individuals had unambig...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1981-07-01 00:00:00
abstract::The relation between clinically obvious polyhydramnios and poor perinatal outcome has been described. Much less is known about mild, unexplained polyhydramnios, which usually is initially suggested by sonographic examination late in gestation. The purpose of the present investigation was to relate mild idiopathic poly...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/00006250-199203000-00012
更新日期:1992-03-01 00:00:00
abstract::Findings on ultrasound scanning of the cervix and lower uterine segment were compared with those on digital examination in patients in preterm labor or those in whom induction was planned. An ultrasound scoring system gave results that corresponded closely to those of the Bishop score. ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1986-11-01 00:00:00
abstract::In a randomized four-way crossover study, 32 women with primary dysmenorrhea were treated with transcutaneous electrical nerve stimulation (TENS) for two cycles, placebo (sham) TENS for one cycle, or ibuprofen 400 mg four times a day for one cycle. The TENS setting used was 100 pulses per second with 100-microsecond p...
journal_title:Obstetrics and gynecology
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1990-04-01 00:00:00
abstract:OBJECTIVE:To address the evolving trends in the choice of transabdominal or transcervical chorionic villus sampling (CVS) at a teaching hospital and to evaluate the influence of gestational age on the approach chosen. METHODS:We analyzed our CVS data base, which contained information from 1986-1991. The proportions of...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1992-09-01 00:00:00
abstract::The incidence of cervical cancer in the United States has decreased more than 50% in the past 30 years because of widespread screening with cervical cytology. In 1975, the rate was 14.8 per 100,000 women. By 2008, it had been reduced to 6.6 per 100,000 women. Mortality from the disease has undergone a similar decrease...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,实务指引
doi:10.1097/aog.0b013e318277c92a
更新日期:2012-11-01 00:00:00
abstract:OBJECTIVE:To estimate the rate of histologic chorioamnionitis in the presence of diagnosed clinical chorioamnionitis and determine whether clinical markers of maternal and neonatal infection are associated with histologic chorioamnionitis. METHODS:We identified singleton pregnancies from 1996 in which discharge diagno...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(99)00416-0
更新日期:1999-12-01 00:00:00
abstract::A retrospective study of 29 patients with invasive carcinoma of the vagina was completed at The Milton S. Hershey Medical Center, Pennsylvania State University, for a ten-year period from 1976-1986. The overall incidence was 1.3% of all gynecologic malignancies. Twenty-four patients (83%) had squamous cell carcinoma a...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1988-07-01 00:00:00
abstract:OBJECTIVE:To explore the relationship between race and depression symptoms among participants in an early pregnancy loss clinical trial. METHODS:We performed a planned secondary analysis of a randomized trial by comparing treatments for medical management of early pregnancy loss. We hypothesized that Black participant...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000004212
更新日期:2021-01-01 00:00:00
abstract:OBJECTIVE:To estimate how implementation of the 2010 Affordable Care Act (ACA) might be associated with stage at diagnosis and time to treatment for women with ovarian cancer. METHODS:We conducted a retrospective cohort study using difference-in-differences analysis comparing stage at diagnosis and time to treatment b...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000003630
更新日期:2020-02-01 00:00:00
abstract::Two hundred thirteen women with abnormal glucose tolerance tests (GTTs) were diagnosed over 9 years by a screening program involving the total antenatal population. Each subject was matched for age, parity, and ethnic group with a control. The gestational diabetics were subdivided into classes A1 or A2 based on the fa...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1989-09-01 00:00:00
abstract::Parturients with heavy vaginal colonization of group B streptococci were selected randomly to receive either penicillin or no antibiotic. A simple and fast latex agglutination test, applied in 8977 consecutive parturients, detected 412 women with heavy colonization with group B streptococcus, 199 of whom were eligible...
journal_title:Obstetrics and gynecology
pub_type: 临床试验,杂志文章,随机对照试验
doi:
更新日期:1989-04-01 00:00:00
abstract::While an abnormal oral glucose tolerance test (GTT) is known to be associated with an increased risk of pregnancy complications, the impact of one abnormal value is not clear. In 1986 we screened 4618 pregnant women for gestational diabetes at 24-28 weeks' gestation. Eighty-seven percent had normal results; of the 13%...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1989-01-01 00:00:00
abstract::As the human immunodeficiency virus (HIV) epidemic affects more women, clinicians are increasingly observing pelvic inflammatory disease (PID) in HIV-infected women. The extent to which PID is a factor in the recognition of HIV or HIV is a factor in the recognition of PID is unknown. Even less is known about how HIV i...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1994-09-01 00:00:00
abstract::Amniotic fluid (AF) was measured in 511 post-dates pregnancies (at least 41 weeks of gestational age) with the use of the AF index. Ultrasonographic evaluations were conducted on a semiweekly basis. Only patients with reliable gestational ages calculated from certain last menstrual period and confirmed by early sonogr...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1992-02-01 00:00:00
abstract:OBJECTIVE:To evaluate the effect of delaying colposcopy in women with negative Papanicolaou smears and positive speculoscopy results. METHODS:This was a prospective study of asymptomatic women ages 13-60 years, regularly scheduled for pelvic examinations. All women had Papanicolaou smears and magnified visual examinat...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(99)00515-3
更新日期:2000-03-01 00:00:00
abstract::The use of the nitroblue tetrozolium (NRT) dye reduction test as a screening method for bacterial and fungal infections is now widely recognized. Levels have been reported to be falsely elevated in the pregnant state. This report includes a prospective study which showed that the results of this test in 124 pregnant w...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1975-03-01 00:00:00
abstract:OBJECTIVE:To examine the associations of maternal and child characteristics with early pregnancy maternal concentrations of testosterone, androstenedione, progesterone, 17-hydroxyprogesterone, and estradiol (E2). METHODS:We analyzed these hormones among 1,343 women with singleton pregnancies who donated serum samples ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0b013e3182342b7f
更新日期:2011-11-01 00:00:00
abstract:OBJECTIVE:To determine the prevalence of the metabolic syndrome postpartum in women with a history of pregnancy complicated by early-onset vascular disorders compared with women with late-onset disorders. METHODS:In this retrospective cohort study 849 women with a history of pregnancy complicated by vascular disorders...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0b013e3181b7b242
更新日期:2009-11-01 00:00:00
abstract::: Accurate dating of pregnancy is important to improve outcomes and is a research and public health imperative. As soon as data from the last menstrual period, the first accurate ultrasound examination, or both are obtained, the gestational age and the estimated due date should be determined, discussed with the patien...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1097/01.AOG.0000454932.15177.be
更新日期:2014-10-01 00:00:00
abstract:OBJECTIVE:To determine if scores from first attempts at the United States Medical Licensure Examination step 1 correlated with obstetrics-gynecology examination scores and identified students at risk of failure. METHODS:All students in obstetrics-gynecology clerkships at the University of Illinois at Chicago from July...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(99)00477-9
更新日期:1999-12-01 00:00:00
abstract:OBJECTIVE:To define the strengths and weaknesses of existing research on the natural history of cervical squamous intraepithelial lesions (SIL) and to estimate rates of progression and regression without treatment. DATA SOURCES:Studies of women whose cervical smears showed squamous atypia or worse and who were observe...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,meta分析
doi:10.1016/s0029-7844(98)00245-2
更新日期:1998-10-01 00:00:00
abstract:OBJECTIVE:To estimate whether excessive weight gain or obesity are risk factors affecting success for vaginal birth after cesarean (VBAC). METHODS:Patients attempting VBAC were identified by the International Classification of Diseases, 9th Revision, codes "VBAC" and "non-primary C-section" and by reviewing logbooks o...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000177972.32941.65
更新日期:2005-10-01 00:00:00
abstract:OBJECTIVE:To compare ondansetron with metoclopramide in the treatment of hyperemesis gravidarum. METHODS:We enrolled 160 women with hyperemesis gravidarum in a double-blind randomized trial. Participants were randomized to intravenous 4 mg ondansetron or 10 mg metoclopramide every 8 hours for 24 hours. Participants ke...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,随机对照试验
doi:10.1097/AOG.0000000000000242
更新日期:2014-06-01 00:00:00
abstract::Fertility and pregnancy complications were assessed in 137 women at risk of having inherited the gene for autosomal dominant polycystic kidney disease. Seventy-six (55%) of these subjects were found to have polycystic kidney disease (multiple renal cysts). The remaining 61 women served as controls. The prevalence of f...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1983-05-01 00:00:00