Abstract:
OBJECTIVE:To estimate the relationship between cervical length and hemorrhage leading to preterm delivery in women with placenta previa. METHODS:Between October 2007 and May 2009, transvaginal cervical-length measurements were obtained in all singleton pregnancies with placenta previa identified at or beyond 24 weeks of gestation. Only women who delivered liveborn or stillborn neonates at our hospital and had placenta previa confirmed at delivery were included. Cervical length of 30 mm or less was considered short. Clinicians were blinded to cervical-length measurements. Chi-square and logistic regression were used for analysis. RESULTS:Of 89 identified women with placenta previa at initial ultrasonography, 68 had placenta previa at delivery, and 29 (43%) of these had a short cervix. Gestational age at cervical-length measurement was 32+/-4 weeks in women with a short cervix and 33+/-2 weeks in those with a longer cervix (P=.4). Women with previa and a short cervix were more likely to require delivery for hemorrhage, 79% compared with 28%, and to deliver preterm, 69% compared with 21% (both P<.001). Tocodynamometer evidence of regular uterine contractions was more common with a short cervix than with a longer cervix, 69% compared with 21% (P<.001). Conversely, 64% with a cervical length greater than 30 mm had no bleeding episodes and progressed to term. CONCLUSION:In pregnancies with placenta previa, a third-trimester cervical length of 30 mm or less is associated with increased risk for hemorrhage, uterine activity, and preterm birth. LEVEL OF EVIDENCE:II.
journal_name
Obstet Gynecoljournal_title
Obstetrics and gynecologyauthors
Stafford IA,Dashe JS,Shivvers SA,Alexander JM,McIntire DD,Leveno KJdoi
10.1097/AOG.0b013e3181ea2debsubject
Has Abstractpub_date
2010-09-01 00:00:00pages
595-600issue
3eissn
0029-7844issn
1873-233Xpii
00006250-201009000-00007journal_volume
116pub_type
杂志文章abstract:OBJECTIVE:To compare the Centers for Disease Control and Prevention's (CDC) contraceptive effectiveness poster with a more patient-centered poster on factors affecting the likelihood of using effective contraceptives. METHODS:The posters were tested in a randomized controlled trial. Women were eligible if they were ag...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,随机对照试验
doi:10.1097/AOG.0000000000003012
更新日期:2019-01-01 00:00:00
abstract::Internal FHR tracings of 259 patients with variable decelerations and 49 with late decelerations were analyzed for frequency and severity of the pattern in an attempt to correlate with fetal pH or Apgar score at 1 minute. A significant increase in the risk of fetal acidosis was associated with a frequency of greater t...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1978-06-01 00:00:00
abstract:BACKGROUND:We describe a case of arteriovenous fistula of the middle and posterior cerebral arteries detected in a fetus. CASE:Fetal echocardiography revealed a high-output cardiac failure. Color Doppler ultrasound demonstrated an arteriovenous fistula, localized at the middle and posterior cerebral arteries, which dr...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0029-7844(96)00100-7
更新日期:1996-10-01 00:00:00
abstract::Physician wellness directly affects patient and physician health and has broader implications for our health systems. A summary of what is known about physician wellness in medicine, and obstetrics and gynecology in particular, identifies several areas for future focus. To change our culture and the structure of our a...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000002328
更新日期:2017-11-01 00:00:00
abstract:OBJECTIVE:To examine the relationship between an obstetrician's delivery volume and a patient's risk for cesarean delivery. METHODS:This retrospective cohort study examined patient-level and obstetrician-level data between 2000 and 2012 at a large academic hospital. All laboring patients who delivered viable, liveborn...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000000473
更新日期:2014-10-01 00:00:00
abstract:BACKGROUND:Umbilical vascular coiling may function as a rudimentary pump that facilitates venous return from the placenta. CASES:Three consecutive twin gestations with twin-twin transfusion syndrome were evaluated prospectively at delivery. The birth weights and umbilical coiling indices of donor and recipient twins w...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(97)00057-4
更新日期:1997-05-01 00:00:00
abstract:OBJECTIVE:To estimate the overall reduction in ovarian cancer risk associated with the use of oral contraceptive pills (OCPs) and whether reduction in risk is affected by specifics of OCP use, such as formulation or duration of use. DATA SOURCES:We searched PubMed, Embase, the Cochrane Database of Systematic Reviews, ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,meta分析,评审
doi:10.1097/AOG.0b013e318291c235
更新日期:2013-07-01 00:00:00
abstract::Patient care emergencies may occur at any time in any setting, particularly the inpatient setting. It is important that obstetrician-gynecologists prepare themselves by assessing potential emergencies, establishing early warning systems, designating specialized first responders, conducting emergency drills, and debrie...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,实务指引
doi:10.1097/01.AOG.0000444442.04111.c6
更新日期:2014-03-01 00:00:00
abstract::During childhood and adolescence, the rate of malignancy in ovarian enlargement is reported to be high-approximately 35% in many large series from tertiary centers. To assess whether this represents an overestimation because of the referral patterns of these institutions, a retrospective review was conducted at five h...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1988-06-01 00:00:00
abstract:OBJECTIVE:To compare ophthalmic arterial velocimetry in normotensive and preeclamptic gravidas with and without photophobia. METHODS:Ophthalmic arteries were studied by color-flow Doppler ultrasonography in 118 normotensive pregnant women, 20 gravidas with preeclampsia and no visual symptoms, and 11 with preeclampsia,...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(99)00294-x
更新日期:1999-09-01 00:00:00
abstract:OBJECTIVE:To describe the presenting symptoms of women with depression in two obstetrics and gynecology clinics, determine depression diagnosis frequency, and examine factors associated with depression diagnosis. METHODS:Data were extracted from charts of women screening positive for depression in a clinical trial tes...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0b013e31829999ee
更新日期:2013-08-01 00:00:00
abstract::The circulating level of ACTH (by radioimmunoassay) and cortisol (by competitive protein binding) were determined at 1- to 2-hour intervals during spontaneous labor (N=8) and induced labor (N=28) and after delivery. There were no differences in ACTH levels between primiparous and multiparous women. The primiparous wom...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1975-09-01 00:00:00
abstract::Most discussion on labial adhesions is about the pediatric group. A case is presented of a postmenopausal woman whose main complaint was urinary incontinence. Etiology, symptoms, signs, and diagnosis are discussed. Guidelines for treatment and prevention are proposed. Because the number of postmenopausal women is stea...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/00006250-198409001-00020
更新日期:1984-09-01 00:00:00
abstract:OBJECTIVE:To present our current understanding of oxytocin and its receptors during pregnancy and parturition and their potential clinical applications. DATA SOURCES:A MEDLINE search was conducted for pertinent articles from 1966 to October 1996 related to oxytocin and its receptor and their clinical implications duri...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1016/s0029-7844(97)00056-2
更新日期:1997-05-01 00:00:00
abstract::The postpartum dose of Rh immune globulin varies according to an individual laboratory estimation of fetal red blood cells in each mother's peripheral blood. In the United States, a four-step procedure determines the postpartum dose (number of vials of 300 micrograms; 1,500 international units) of Rh immune globulin (...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1097/aog.0b013e3182742eba
更新日期:2012-12-01 00:00:00
abstract:OBJECTIVE:To assess treatment outcomes associated with an obstetric hypertensive emergency quality improvement intervention instituted in a tertiary care women's emergency department. METHODS:We conducted a cohort study of pregnant (20 weeks of gestation or greater) and postpartum (6 weeks of gestation or less) women ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000002809
更新日期:2018-10-01 00:00:00
abstract::To study the effect of maternal ethanol consumption on the production of prostacyclin and thromboxane, we measured urinary 6-keto-prostaglandin F1 alpha (a hydration product of prostacyclin), 2,3-dinor-6-keto-prostaglandin F1 alpha (generated from 6-keto-prostaglandin F1 alpha through beta oxidation), and thromboxane ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1988-01-01 00:00:00
abstract:OBJECTIVE:To determine the influence of maternal blood contamination on amniotic fluid (AF) glucose and white blood cell count (WBC). METHODS:Amniotic fluid from 23 preterm, nondiabetic pregnant women was studied. Maternal blood was added to the AF at increasing concentrations, and glucose and WBCs were assessed. RES...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0029-7844(95)00354-1
更新日期:1996-02-01 00:00:00
abstract:BACKGROUND:Double aneuploidies account for 0.21-2.8% of spontaneous abortions resulting from chromosomal abnormalities. Rarely, cell-free DNA testing detects multiple aneuploidies; however, to discern among maternal, placental, and fetal origin, further evaluation is required. CASE:A 49-year-old woman, gravida 5 para ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000001390
更新日期:2016-06-01 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::The safety of pregnancy after myocardial infarction remains a significant dilemma for both the obstetrician and the cardiologist. Only 20 cases of pregnancy after myocardial infarction have been reported. To clarify this problem, we add our experience of four such cases in which conception occurred 9 months to 9 years...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1991-06-01 00:00:00
abstract::A new rapid method of presurgical cleansing of the hands has been evaluated in a clinical setting. The effectiveness of a 90 second jet wash has been compared with a standard 10-minute presurgical scrub. Bacteriologic cultures were obtained from the fingertips of interns, residents, and staff of the Department of Obst...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1978-01-01 00:00:00
abstract:BACKGROUND:Serious injury can result from improper use of the birthing bar. CASE:A 31-year-old woman delivered a neonate using a birthing bar for her entire second stage of labor. Shortly after delivery, she experienced bilateral upper extremity weakness from compression of the radial nerve. She was treated with physi...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1996-05-01 00:00:00
abstract:BACKGROUND:Pelvic vein thrombosis may occur in nonpuerperal patients with hypercoagulable conditions and have significant sequelae. The purpose of this report is to describe a nonpuerperal woman with factor V Leiden mutation who developed acute pelvic pain secondary to pelvic varix thrombosis. CASE:A multiparous woman...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(01)01589-7
更新日期:2002-05-01 00:00:00
abstract::Two cases of thrombocytopenia, one resulting in bleeding, are reported in patients treated with prophylactic low-dose heparin. The evidence indicates that low-dose heparin was responsible. A review of the literature indicates that heparin-induced thrombocytopenia may be a common event. Since low-dose heparin has been ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1978-07-01 00:00:00
abstract::Sixty-two cases of oligohydramnios diagnosed by ultrasound between 13-28 weeks' gestation were reviewed. Three experienced ultrasonographers used a subjective scale to rate the oligohydramnios as mild, moderate, severe, or anhydramniotic. Interobserver reliability was excellent (intraclass correlation coefficient 0.81...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1989-05-01 00:00:00
abstract:OBJECTIVE:To assess, from the patient's perspective, the prevalence and impact of postoperative fatigue after hysterectomy and to increase understanding of physician-patient communications before and after surgery regarding recovery and diminished postoperative energy level. METHODS:We completed a telephone survey of ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(01)01622-2
更新日期:2002-01-01 00:00:00
abstract::Vaginal hysterectomy for sterilization was performed on 115 patients. The Heaney technique was used by nine gynecologists, using lidocaine and adrenaline. The average age of patients was 32.2 years and average parity 3.2. Significant unsuspected pathology was found after surgery in 21 patients. One postoperative d...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1972-05-01 00:00:00
abstract:OBJECTIVE:To establish the indications for surgical intervention, at the appropriate gestational duration, for brain tumors in pregnant women, and to evaluate any association pregnancy hormones may have with the rate of growth or development of complications of brain tumors. METHODS:We observed seven women with brain ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(96)00381-x
更新日期:1997-01-01 00:00:00
abstract:OBJECTIVE:To assess the efficacy and safety of an oral formulation of tranexamic acid for the treatment of heavy menstrual bleeding. METHODS:Adult women with heavy menstrual bleeding (mean menstrual blood loss 80 mL or more per cycle) were enrolled in a double-blind, placebo-controlled study. After two pretreatment me...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1097/AOG.0b013e3181f20177
更新日期:2010-10-01 00:00:00