Abstract:
OBJECTIVE:Our aim was to determine whether hysterotomy and selective removal of an acardiac twin could improve the outcome of the "pump" twin. STUDY DESIGN:A literature and case review of the outcome of the acardiac twin malformation was performed. When an acardiac malformation was diagnosed at 19 weeks' gestation the patient was monitored with weekly ultrasonographic examinations. At 23 weeks' gestation, no blood flow could be demonstrated to the acardiac twin and it was thought that the continued presence of the acardiac twin posed a risk to the "pump" twin. A midtrimester hysterotomy was performed and the acardiac twin was delivered. RESULTS:After the midtrimester hysterotomy, the pregnancy progressed to term and a healthy female infant was delivered by elective cesarean section at 37 weeks' gestation. CONCLUSION:Midtrimester hysterotomy may be a useful intervention in cases of twinning when one fetus is a threat to the health of the other.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Ginsberg NA,Applebaum M,Rabin SA,Caffarelli MA,Kuuspalu M,Daskal JL,Verlinsky Y,Strom CM,Barton JJdoi
10.1016/s0002-9378(11)91620-2subject
Has Abstractpub_date
1992-07-01 00:00:00pages
33-7issue
1eissn
0002-9378issn
1097-6868pii
S0002-9378(11)91620-2journal_volume
167pub_type
杂志文章abstract::A cryoprobe that will produce coagulation necrosis and subsequent scar formation of the cornual areas of the uterus has been tested. A discussion is made of the developmental program, including the design of the instrument, efficacy and safety testing in baboons, and preliminary investigations of the safety of this pr...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(78)90466-0
更新日期:1978-05-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to retrospectively determine the safety and efficacy of epidural anesthesia when administered by obstetricians in a community hospital. STUDY DESIGN:Data containing 14,598 epidural procedures from 31,818 births were obtained from delivery room logs over a period of 20 years, fro...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(93)90075-t
更新日期:1993-08-01 00:00:00
abstract::This article reviews the epidemiology, management, and outcome of 71 quadruplet pregnancies that occurred between 1980 and 1989. A study of detailed medical questionnaires and medical records revealed that 67 (94%) of the pregnancies followed ovulation induction therapy. A majority of the pregnancies were diagnosed by...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(90)90896-f
更新日期:1990-06-01 00:00:00
abstract:BACKGROUND:There is growing interest in uterine conservation at the time of surgery for uterovaginal prolapse, but limited data compare different types of hysteropexy. OBJECTIVE:We sought to compare 1-year efficacy and safety of laparoscopic sacral hysteropexy and vaginal mesh hysteropexy. STUDY DESIGN:This multicent...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2016.08.035
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:The integrity of the pelvic autonomic nervous system is essential for proper bowel, bladder, and sexual function. OBJECTIVE:The purpose of this study was to characterize the anatomic path of the pelvic autonomic system and to examine relationships to clinically useful landmarks. STUDY DESIGN:Detailed disse...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2016.12.002
更新日期:2017-04-01 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::Bicycle ergometry (non-weight-bearing exercise) and treadmill (weight-bearing exercise) were compared to assess physiologic responses to similar work loads. A total of 22 subjects at 29.3 +/- 1.6 (+/- SEM) weeks' gestation who performed non-weight-bearing exercise were compared with 15 similarly fit subjects at 26.1 +...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(89)90905-8
更新日期:1989-12-01 00:00:00
abstract:OBJECTIVE:We sought to determine the interventions utilized by maternal-fetal medicine specialists in the prediction and prevention of preterm labor in higher-order multiple (HOM) gestations. STUDY DESIGN:Online questionnaires and email surveys were sent to all the maternal-fetal medicine specialists in Canada (n=122)...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2014.12.031
更新日期:2015-05-01 00:00:00
abstract::The possible role of reproductive steroids in the vascular changes o f the estrous and menstrual cycles and of pregnancy has prompted both clinical observations and animal experiments on the influence of sex hormones on the physiology of blood vessels. Research was carried out to develop a method for exposing blood ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(72)90637-0
更新日期:1972-07-01 00:00:00
abstract::A study was made of the relationship of proton T1 relaxation times and stage of the menstrual cycle. Preliminary data show that these indicators of red blood cell hydration status may be useful as objective markers of premenstrual tension. ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(85)90358-8
更新日期:1985-12-01 00:00:00
abstract:BACKGROUND:Age-related decline in reproductive potential is mainly due to the increased incidence of aneuploidy. Furthermore, 2 recent studies have shown that euploid embryos of older women may have a lower implantation potential compared to those of younger women, suggesting that aging might compromise embryos beyond ...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2018.11.1103
更新日期:2019-04-01 00:00:00
abstract::The effects of maternal hyperexcitability on the fetus were studied in 17 baboons. In the period of agitation, induced by stressful stimulus such as exposure to bright light or by clamping of the toe, the mother exhibited an increase in arterial blood pressure and, in some instances, arrhythmia. These changes were acc...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(16)33032-0
更新日期:1979-06-01 00:00:00
abstract::Prostacyclin is a potent vasodilator produced by both maternal and fetal tissues that dilates the umbilical placental vasculature in vitro. To test the hypothesis that prostacyclin dilates the fetal placental circulation in vivo, we measured blood flow by the radioactive microsphere technique in six unanesthetized nea...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(89)90303-7
更新日期:1989-04-01 00:00:00
abstract::Twenty-two hirsute women underwent percutaneous adrenal and ovarian vein catheterization to differentiate and localize excessive hormonal output. All studies were done under fluoroscopic control; catheter placement was verified by venography, and blood samples were withdrawn for hormonal analysis. The right ovarian ve...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(76)90504-4
更新日期:1976-08-01 00:00:00
abstract:OBJECTIVE:This study investigates the association of allelic variation in angiogenic pathway genes and preeclampsia. STUDY DESIGN:Data for cases with preeclampsia and term control subjects were collected prospectively. Maternal DNA was extracted, and 124 tagging single nucleotide polymorphisms in 6 genes (vascular end...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2010.01.040
更新日期:2010-05-01 00:00:00
abstract::Five nonstress tests were interpreted by a national sample of obstetricians blinded to specific patient clinical data. The 169 questionnaires suitable for analysis showed that the reliability of the test interpretation, as measured by the kappa statistic, decreased with increasing number of categories of interpretatio...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(85)90459-4
更新日期:1985-11-01 00:00:00
abstract:OBJECTIVE:Our purpose was to test the hypothesis that severe placental insufficiency leads to reductions in fetal urine production and amniotic fluid volume in late-gestation fetal sheep. STUDY DESIGN:At 0.85 of gestation, chronically catheterized fetal sheep with ligated urachus were either embolized for 5 days by re...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1067/mob.2002.122291
更新日期:2002-05-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to review the validity of published studies that consider modifying physical activity during pregnancy to decrease preterm births and low birth weight. STUDY DESIGN:Presented is a critical review of extant literature, both case-control studies and studies of pregnant women follo...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1016/0002-9378(93)90374-r
更新日期:1993-04-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to compare the efficacy and safety profile of prostaglandin E2 with isosorbide mononitrate for cervical ripening before the induction of labor at term. STUDY DESIGN:Primigravid women were assigned randomly to receive either 40 mg of isosorbide mononitrate or 2 mg of prostaglandi...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.ajog.2005.10.812
更新日期:2006-04-01 00:00:00
abstract:OBJECTIVE:We hypothesized that diagnostic approaches to lower genital tract infections are inaccurate and proposed this study to evaluate typical approaches. STUDY DESIGN:Clinical diagnoses were made with symptoms, direct observation, wet mount, vaginal pH, and amines in 598 women with genital complaints. Laboratory t...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,多中心研究
doi:10.1016/j.ajog.2004.02.015
更新日期:2004-04-01 00:00:00
abstract:OBJECTIVES:Our purpose was to investigate the benefit, if any, of automated blood pressure monitoring over obstetric day unit conventional blood pressure measurement in the assessment of hypertensive pregnancies. STUDY DESIGN:A prospective, observational study was carried out in two large teaching hospitals. Three hun...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0002-9378(98)70432-6
更新日期:1998-03-01 00:00:00
abstract:OBJECTIVE:This study was undertaken to assess the utility of the Advanced Life Support in Obstetrics Course for obstetrics/gynecology first-year residents by triangulating pretest and posttest scores on written test of knowledge by interns, with qualitative surveys by residents, and faculty. STUDY DESIGN:Obstetrics/gy...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2006.10.912
更新日期:2007-05-01 00:00:00
abstract::Late in 1995 and early 1996, 4 epidemiologic studies were published that resulted in a crude mean weighted relative risk of approximately 2 when third-generation oral contraceptives were compared with second-generation oral contraceptives as risk factors for venous thromboembolism. This article reviews empirical evide...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1053/ob.1998.v179.a93059
更新日期:1998-09-01 00:00:00
abstract::In studying the mechanisms which govern estriol production in human pregnancy at term, 16 alpha OH-DHEA, 16alpha-OH-DHEA sulfate, and unbound unconjugated cortisol were measured in peripheral venous plasma of 28 healthy women and in cord venous and arterial plasms of their newborn infants at the time of elective cesar...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(75)90468-8
更新日期:1975-03-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to compare cardiac dynamics of high-risk and low-risk fetuses using beat to beat variability. STUDY DESIGN:This study obtained 214 fetal magnetocardiography recordings from a group of high-risk fetuses with maternal conditions associated with placental insufficiency with the ris...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2007.02.017
更新日期:2007-06-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to determine the accuracy of live-birth certificates and hospital discharge data that reported of pre-existing maternal medical conditions and complications of pregnancy. STUDY DESIGN:We conducted a population-based validation study in 19 non-federal short-stay hospitals in Wash...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2005.02.096
更新日期:2005-07-01 00:00:00
abstract:OBJECTIVE:Our purpose was to determine the effect of in utero exposure to indomethacin on the need for surgical closure of a patent ductus arteriosus (PDA). STUDY DESIGN:Perinatal variables were compared between infants at <32 weeks who required surgical closure of PDA after failed medical management and those who did...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1067/mob.2002.127464
更新日期:2002-10-01 00:00:00
abstract::Two hundred seventy-eight high-risk patients were managed by a comprehensive assessment of the anatomic, biochemical, and functional environment of the fetoplacental unit utilizing predetermined guidelines. Decisions to terminate pregnancy were reserved for patients who demonstrated a positive OCT. Perinatal outcome i...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(79)90835-4
更新日期:1979-07-01 00:00:00
abstract::Intravenous hydralazine was administered to 16 spontaneously hypertensive rats on day 21 of gestation. The radioactive labeled microsphere technique was used to assess the change in organ perfusion produced by the drug. Vascular resistance to most organs was decreased, except to the placentas, stomach, and cecum, wher...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0002-9378(87)90283-3
更新日期:1987-02-01 00:00:00
abstract:OBJECTIVE:To determine the prevalence of placental complications in patients conceived through donor versus autologous oocytes. STUDY DESIGN:A retrospective cohort study including 2 groups of patients who conceived through in vitro fertilization using: (1) donor oocyte (n = 139) and (2) autologous oocyte (n = 126). On...
journal_title:American journal of obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/j.ajog.2014.03.044
更新日期:2014-10-01 00:00:00