Abstract：
OBJECTIVE:We sought to study neonatal outcomes in early preterm births by delivery route. STUDY DESIGN:Delivery precursors were analyzed in 4352 singleton deliveries, 24 0/7 to 31 6/7 weeks' gestation. In a subset (n = 2906) eligible for a trial of labor, neonatal mortality in attempted vaginal delivery (VD) was compared to planned cesarean delivery stratified by presentation. RESULTS:Delivery precursors were classified as maternal or fetal conditions (45.7%), preterm premature rupture of membranes (37.7%), and preterm labor (16.6%). For vertex presentation, 79% attempted VD and 84% were successful. There was no difference in neonatal mortality. For breech presentation, at 24 0/7 to 27 6/7 weeks' gestation, 31.7% attempted VD and 27.6% were successful; neonatal mortality was increased (25.2% vs 13.2%, P = .003). At 28 0/7 to 31 6/7 weeks' gestation, 30.5% attempted VD and 17.2% were successful; neonatal mortality was increased (6.0% vs 1.5%, P = .016). CONCLUSION:Attempted VD for vertex presentation has a high success rate with no difference in neonatal mortality unlike breech presentation.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Reddy UM,Zhang J,Sun L,Chen Z,Raju TN,Laughon SKdoi
10.1016/j.ajog.2012.06.023subject
Has Abstractpub_date
2012-08-01 00:00:00pages
117.e1-8issue
2eissn
0002-9378issn
1097-6868pii
S0002-9378(12)00636-9journal_volume
207pub_type
杂志文章abstract：OBJECTIVE:The purpose of this study was to describe trends and outcomes of planned births. STUDY DESIGN:Data from linked birth and hospital records for 779,521 singleton births at ≥33 weeks' gestation from 2001-2009 were used to determine trends in planned births (prelabor cesarean section and labor inductions). Adver...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2012.06.082
更新日期：2012-09-01 00:00:00
abstract：:The gonadotropin-releasing hormone antagonist offers several advantages over the use of the agonist and allows several physiologic questions to be addressed. In this study, we evaluated the ability of Nal-Glu to acutely inhibit the luteinizing hormone surge and prevent ovulation. We also assessed whether recovery of t...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/0002-9378(91)90037-r
更新日期：1991-12-01 00:00:00
abstract：:To determine the genetic origin of the complete hydatidiform mole, 20 abnormal pregnancies were studied with restriction fragment length polymorphism with five genomic probes: EJ 6.6, beta-globin gene, 3'alpha-hypervariable region, J-Bir, and St14. In the 12 cases of molar pregnancy, pure paternal origin was proved in...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90537-2
更新日期：1991-03-01 00:00:00
abstract：:Serine proteases such as plasminogen activators are produced by granulosa cells both in vivo and in vitro and have been implicated in the process of ovulation. For a study of potential roles of serine proteases in early follicular development, immature rats were injected with pregnant mare serum gonadotropin, followed...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(88)90051-8
更新日期：1988-03-01 00:00:00
abstract：BACKGROUND:As compared with singleton gestations, twin pregnancies are associated with a significantly higher risk of preterm birth and maternal complications as well as fetal and neonatal morbidity and mortality. Multifetal pregnancy reduction is a technique developed in the 1980s to reduce the fetal number in higher-...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2019.04.001
更新日期：2019-09-01 00:00:00
abstract：:The confluence of maternal and fetal tissues to form the placenta causes a wide variety of alterations in cells of both origins. Three closely related primate species were studied for similarities and differences in the interrelationships formed during various stages of placental development in the areas of implantati...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(76)90068-5
更新日期：1976-03-15 00:00:00
abstract：OBJECTIVE:Our aim was to determine the relative efficacy and complications of low-dose heparin and intermittent pneumatic calf compression for the prevention of postoperative venous thrombosis in patients undergoing surgery for gynecologic malignancy. STUDY DESIGN:Randomized trial comparing 107 patients treated with l...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/0002-9378(93)90360-u
更新日期：1993-04-01 00:00:00
abstract：OBJECTIVE:To determine whether severe preeclampsia is associated with increased maternal hypotension or fetal heart rate abnormalities after epidural anesthesia placement during labor. STUDY DESIGN:Retrospective cohort study of 100 women with severe preeclampsia and 100 normotensive controls who underwent epidural ane...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2012.07.029
更新日期：2012-10-01 00:00:00
abstract：OBJECTIVE:The objective of this study was to quantitatively determine an immunoglobulin G receptor, placental alkaline phosphatase, and its ligand immunoglobulin G in maternal and fetal blood and to study the transport capacity of the receptor. STUDY DESIGN:Venous blood samples from 66 term pregnant women and cord sam...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(94)90479-0
更新日期：1994-07-01 00:00:00
abstract：OBJECTIVE:We tabulated first-trimester ultrasonography findings in women with recurrent pregnancy loss and determined the rate of subsequent pregnancy loss and live births after demonstration of a live embryo. STUDY DESIGN:Sixty-seven women with three or more recurrent miscarriages underwent first-trimester ultrasonog...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/s0002-9378(12)90896-0
更新日期：1993-01-01 00:00:00
abstract：:Postoperative adhesions occur in 60% to 90% of patients undergoing major gynecologic surgery and represent one of the most common causes of intestinal obstruction in the industrialized world. The incidence of adhesion-related intestinal obstruction after gynecologic surgery for benign conditions without hysterectomy i...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/s0002-9378(94)70170-9
更新日期：1994-05-01 00:00:00
abstract：:We report an asymptomatic 23-year-old female patient who was diagnosed to have a transmigrated intrauterine device (IUD) during a routine gynecological examination. After the IUD had been located within the colonic wall by further investigation, the IUD was successfully extracted via transanal route by colonoscopic in...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2010.11.037
更新日期：2011-03-01 00:00:00
abstract：:Each year, nearly 4 million pregnant patients in the United States receive prenatal care-a crucial preventive service that improves pregnancy outcomes for mothers and their children. National guidelines currently recommend 12-14 in-person prenatal visits, a schedule that has remained unchanged since 1930. When scrutin...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2020.05.029
更新日期：2020-09-01 00:00:00
abstract：:This review focuses on the contribution of psychosocial stress to the racial/ethnic disparities in preterm delivery in the United States and addresses the subset of psychosocial stressors that are disproportionately prevalent among minority women. We argue that chronic exposure to poverty, racism, and insecure neighbo...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2005.01.072
更新日期：2005-05-01 00:00:00
abstract：BACKGROUND:Previous studies have shown a decrease in cervical cancer associated with intrauterine device use. It has been hypothesized that intrauterine device use may alter the natural history of human papillomavirus infections, preempting development of precancerous lesions of the cervix and cervical cancer, but the ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2016.11.1053
更新日期：2017-04-01 00:00:00
abstract：BACKGROUND:Intra-amniotic infection or inflammation (IAI) is common in early preterm birth and associated with significant neonatal lung morbidity due to fetal exposure to pro-inflammatory cytokines and infectious organisms. Amniotic fluid interleukin-8 (IL-8), a pro-inflammatory cytokine, was previously correlated wit...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2020.12.1214
更新日期：2021-01-04 00:00:00
abstract：:Endocrine disrupting chemicals (EDCs) are defined as exogenous chemicals, or mixtures of chemicals, that can interfere with any aspect of hormone action. The field of endocrine disruption is historically rooted in wildlife biology and reproductive endocrinology where EDCs are demonstrated contributors to infertility, ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2016.01.182
更新日期：2016-05-01 00:00:00
abstract：OBJECTIVE:Ureaplasma colonization in the setting of polymicrobial flora is common in women with chorioamnionitis, and is a risk factor for preterm delivery and neonatal morbidity. We hypothesized that Ureaplasma colonization of amniotic fluid would modulate chorioamnionitis induced by Escherichia coli lipopolysaccharid...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2013.02.018
更新日期：2013-05-01 00:00:00
abstract：OBJECTIVE:Prostaglandins reduce cervical resistance by reorganizing collagen fibrils. Proteoglycans are involved in collagen fibril organization and structure. We evaluated the changes in proteoglycan composition induced by prostaglandin E(2) (PGE(2)). STUDY DESIGN:Prostaglandins were administered intravaginally to in...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2007.11.024
更新日期：2008-05-01 00:00:00
abstract：OBJECTIVE:Carotenoids have antioxidant properties and have been associated with reduced risks of some cancers. We hypothesized that carotenoid intake may reduce the risk of diagnosed uterine leiomyoma (UL). STUDY DESIGN:We evaluated the associations between dietary carotenoids and risk of diagnosed UL in 82,512 premen...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2007.05.033
更新日期：2008-01-01 00:00:00
abstract：OBJECTIVE:The null hypothesis is that the use of intrapartum amnioinfusion in labors complicated by the presence of thick meconium and oligohydramnios will not decrease the incidence of fetal distress, cesarean delivery, meconium aspiration, or meconium aspiration syndrome. STUDY DESIGN:One hundred seventy term and po...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0002-9378(11)91641-x
更新日期：1992-07-01 00:00:00
abstract：OBJECTIVE:We measured the concentrations of plasma P selectin (or GMP-140) and glycocalicin in preeclamptic and eclamptic women. Correlations between these two parameters and blood pressures, platelet counts, or plasma thrombin-antithrombin complex values were evaluated. STUDY DESIGN:By use of enzyme-linked immunosorb...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(96)70407-6
更新日期：1996-01-01 00:00:00
abstract：:Observational studies demonstrate that women with severe periodontitis have a higher risk of adverse pregnancy outcomes like preterm birth and low birthweight. Standard treatment for periodontitis in the form of scaling and root planing during the second trimester failed to reduce the risk of preterm or low birthweigh...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2019.04.029
更新日期：2019-11-01 00:00:00
abstract：OBJECTIVE:Recent randomized trials comparing total laparoscopic hysterectomy (TLH) and vaginal hysterectomy (VH) have produced conflicting results. The role of TLH in women suitable for VH remains uncertain. STUDY DESIGN:This study was a metaanalysis of randomized studies comparing TLH and VH for benign disease. Poole...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,meta分析
doi：10.1016/j.ajog.2010.12.059
更新日期：2011-05-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to assess endothelial dysfunction in women with preeclampsia by measuring endothelial microparticles. STUDY DESIGN:A case-control study was conducted on 20 women with preeclampsia and 20 healthy pregnant women as control subjects. Endothelial microparticles were measured by flow...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/s0002-9378(03)00469-1
更新日期：2003-08-01 00:00:00
abstract：:Postoperative morbidity after hysterectomy was prospectively studied in 229 consecutive patients in our departments. The incidence of alcohol abuse (greater than 60 gm of alcohol daily) and social drinking (between 25 and 60 gm of alcohol daily) was 6.5% for each. When compared with the social drinkers and the control...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(92)91695-7
更新日期：1992-02-01 00:00:00
abstract：OBJECTIVE:Our objective was to study tone responses caused by hypoxia, reoxygenation, and hydrogen peroxide in human placental vessels from gestational diabetic and normal term pregnancies. STUDY DESIGN:Isolated placental arteries and veins from women with well-controlled gestational diabetic and uncomplicated term pr...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(11)90807-2
更新日期：1993-05-01 00:00:00
abstract：INTRODUCTION:The purpose of this study was to compare transobturator tape (MONARC) with tension-free vaginal tape in patients with borderline low maximum urethral closure pressure. STUDY DESIGN:Historical cohort analysis of 3-month outcomes in 145 subjects (MONARC = 85; tension-free vaginal tape = 60). A cut-off point...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2006.07.011
更新日期：2006-12-01 00:00:00
abstract：OBJECTIVE:We sought to estimate the risk of spontaneous preterm birth in parous women by use of obstetric history, fetal fibronectin, and sonographic cervical length. STUDY DESIGN:The probability of spontaneous preterm birth before 35 weeks' gestation was estimated from a logistic regression model with data from 1282 ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(98)70544-7
更新日期：1998-05-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to investigate the effect of methadone on fetal neurobehavioral functions and maternal physiologic indicators. STUDY DESIGN:Forty women attending a substance abuse treatment facility with otherwise uncomplicated pregnancies were evaluated at peak and trough methadone levels. Fet...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2005.02.075
更新日期：2005-09-01 00:00:00
