Abstract：
:Preterm birth remains a major cause of perinatal morbidity and mortality. A short cervix is strongly associated with spontaneous preterm birth. Professional organizations support cervical length screening for singleton gestations with a prior spontaneous preterm birth and second-trimester cervical length measurements between 16-24 weeks. All interventions used to decrease the risk of preterm birth in women with a short cervix are based on clinical trials that used transvaginal cervical length measurement, but transabdominal ultrasound has been shown to correlate well with transvaginal measurement in some observational studies. Transvaginal cervical length measurement is more accurate and more reliably obtained than the transabdominal approach. Conversely, transabdominal ultrasound could have the advantage of ease of implementation and, in general, is perceived by patients to be associated with less discomfort. Currently, there is no randomized clinical study that compares head-to-head the effectiveness of transvaginal vs transabdominal ultrasound for preterm birth risk screening. This point/counterpoint article summarizes the pros and cons of the 2 ultrasound approaches and debates whether transvaginal ultrasound should be used exclusively or if transabdominal ultrasound can be incorporated in cervical length screening for prevention of preterm birth.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Khalifeh A,Berghella Vdoi
10.1016/j.ajog.2016.07.019subject
Has Abstractpub_date
2016-12-01 00:00:00pages
739-744.e1issue
6eissn
0002-9378issn
1097-6868pii
S0002-9378(16)30453-7journal_volume
215pub_type
社论abstract：OBJECTIVE:An infrequent clinical dilemma arises when a patient with uterine prolapse that is best treated vaginally is discovered to have coexisting endometrial cancer. Often the underlying cancer is only discovered intraoperatively or postoperatively. We have reviewed our experience in this situation in an effort to e...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/0002-9378(95)91399-8
更新日期：1995-06-01 00:00:00
abstract：:The aggressive management of early labor has been suggested as a means to lower the cesarean section rate for dystocia. The aim of our study was to prospectively evaluate a protocol of early intervention in primigravid women with infrequent uterine contractions during early labor in relation to the course of labor, th...
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(87)80288-0
更新日期：1987-11-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to evaluate the effect of a low-cholesterol low-saturated fat diet on Doppler indices in the fetus and mother. STUDY DESIGN:Two hundred ninety nonsmoking white women, aged 21-38 years, without previous pregnancy complications and carrying a single fetus were assigned randomly to...
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.2007.01.017
更新日期：2007-06-01 00:00:00
abstract：OBJECTIVE:We sought to compare the outcomes of cervicoisthmic (CI) cerclage using traditional transabdominal (TA) approach vs the lesser used transvaginal (TV) approach. STUDY DESIGN:We conducted a retrospective cohort study of women who underwent placement of a CI cerclage. RESULTS:Before CI placement, the abdominal...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2009.03.020
更新日期：2009-07-01 00:00:00
abstract：:We report a case of uterine cancer and invasive cervical cancer, detected incidentally during the female-to-male sex reassignment surgery. The management of these patients is presented. Such individuals may not be receiving regular gynecologic care appropriate to their remaining genital organs; symptoms of malignant d...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2010.12.057
更新日期：2011-05-01 00:00:00
abstract：OBJECTIVE:We have investigated the use of uterine artery Doppler waveform analysis in growth restricted fetuses delivered at > or =34 weeks. STUDY DESIGN:Included in the study were all consecutive euploid non-malformed singleton fetuses with accurate dating diagnosed as growth restricted (sonographic abdominal circumf...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2002.127137
更新日期：2002-10-01 00:00:00
abstract：:Cyclic adenosine 3',5'-monophosphate is known to modulate smooth muscle contractility. Because both relaxin and progesterone have been demonstrated to affect myometrial cyclic adenosine monophosphate activity, we questioned whether the previously observed synergism of these two hormones in inhibiting uterine contracti...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(88)90564-9
更新日期：1988-12-01 00:00:00
abstract：OBJECTIVE:Our purpose was to define the diagnostic value of a new fetal assessment score that is based on each of the components of the Apgar score. STUDY DESIGN:A fetal assessment score was established to study the main fetal vital functions: (1) cardiovascular (heart rate, color of the skin in the Apgar score), now ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(93)90618-s
更新日期：1993-09-01 00:00:00
abstract：:Endometrial biopsies at varying times in the menstrual cycle were obtained from 30 healthy women (16-41 years) to be used as controls, and 19 women (16-36 years), who wore an IUD (Mazlin spring, Lippes loop, or Birnburg bow) for from 5 months to 4 years, in order to study histological changes in the endometrium in th...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(70)90508-9
更新日期：1970-04-15 00:00:00
abstract：:A national sample of 1944 white menopausal women greater than or equal to 55 years old from the epidemiologic follow-up of participants in the National Health and Nutrition Examination Survey was reviewed to investigate the role of hormone therapy in altering the risk of death from cardiovascular disease. Women in the...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(11)80006-2
更新日期：1991-02-01 00:00:00
abstract：OBJECTIVE:We sought to characterize reports to the Vaccine Adverse Event Reporting System (VAERS) of pregnant women who received tetanus toxoid, reduced diphtheria toxoid, and acellular pertussis vaccine (Tdap). STUDY DESIGN:We searched VAERS for reports of pregnant women who received Tdap from Jan. 1, 2005, through J...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2012.05.006
更新日期：2012-07-01 00:00:00
abstract：:Repeated nutritional assessments were made on 118 low-income women who registered at an urban hospital clinic prior to the twenty-eighth week of pregnancy and then on 122 comparable women who were provided with protein-mineral supplementation. Demographic and background information were obtained. Medical assessments w...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(75)90487-1
更新日期：1975-12-01 00:00:00
abstract：:A case of herpes gestationis recurring in each pregnancy, with a postpartum flare-up in the last pregnancy, is described. The diagnosis was confirmed by skin biopsy. The first pregnancy ended in a term stillbirth, but there were favorable outcomes in four subsequent pregnancies. Histopathologic examination of the plac...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90514-r
更新日期：1991-03-01 00:00:00
abstract：:Grand multiparity has been considered to be a factor in maternal and neonatal morbidity. In addition, families with seven or more children have been associated with low socioeconomic status. To minimize the confounding effect of the socioeconomic status, the outcome of grand multiparity has been investigated in a most...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(88)90213-x
更新日期：1988-05-01 00:00:00
abstract：:The premenstrual syndrome (PMS) is a major clinical entity afflicting a large segment of the female population. Available information are descriptive in nature and the etiology of this syndrome remains unclear. In this review, both biochemical and psychosocial elements of the syndrome have been explored in an effort t...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/0002-9378(81)90417-8
更新日期：1981-01-01 00:00:00
abstract：BACKGROUND:One of the controversies in the management of twin gestations relates to mode of delivery, especially when the second twin is in a nonvertex presentation (Vertex/nonVertex pairs) and birth is imminent at extremely low gestation. OBJECTIVE:We hypothesized that, for Vertex/nonVertex twins born before 28 weeks...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2020.12.002
更新日期：2020-12-09 00:00:00
abstract：:Herceptin (trastuzumab) is an adjuvant chemotherapy agent used in treatment of certain breast cancers. Limited information is available on the use of herceptin in pregnancy. This case is a twin pregnancy exposed to herceptin until 23 weeks' gestation. One twin had chronic renal failure develop, whereas the other twin ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2009.02.017
更新日期：2009-07-01 00:00:00
abstract：:Clinical research has shown that prostaglandins (PGs) play an important role in every phase of human reproduction. The logical consequence of early basic biological research into PGs is the current interest in clinical evaluation of PGs as agents to induce labor and abortion and to stimulate menstruation. This is a ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(72)90467-x
更新日期：1972-05-01 00:00:00
abstract：OBJECTIVE:Identifying patients at risk for preterm delivery continues to be difficult. We analyzed fetal fibronectin immunoassays in 763 subjects with threatened preterm delivery from 10 clinical sites. STUDY DESIGN:Symptomatic women between 24 weeks 0 days and 34 weeks 6 days with intact amniotic membranes and cervic...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,多中心研究
doi：10.1016/s0002-9378(97)70561-1
更新日期：1997-03-01 00:00:00
abstract：:Postpartum hemorrhage with concurrent massive inferior epigastric artery bleeding after cesarean delivery is unusual. In the current case, besides embolization of the bilateral hypogastric arteries, recognition and successful embolization of a clinically overlooked active bleeding source in the abdominal wall was cruc...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2002.122417
更新日期：2002-07-01 00:00:00
abstract：OBJECTIVE:The objective of the study was to investigate the differences in perinatal outcomes between various Asian ethnic subgroups at a national level. STUDY DESIGN:This is a retrospective cohort study of all non-Hispanic Chinese, Japanese, Filipino, Asian Indian, Korean, Vietnamese, Samoan, Guamanian, and Hawaiian ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2008.06.073
更新日期：2008-10-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to investigate the potential efficacy of high-intensity focused ultrasound for the treatment of uterine fibroid tumors in a nude mouse model. STUDY DESIGN:A total of 60 female athymic nude mice were inoculated subcutaneously with 3 to 5 x 10(6) ELT-3 cells, a uterine fibroid tum...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2000.105347
更新日期：2000-07-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to test the hypothesis that severe placental insufficiency and a rise in fetal systemic venous pressure are associated with fetal myocardial cell damage, which in turn leads to increased neonatal troponin T levels. STUDY DESIGN:Sixty-six neonates born after uncomplicated pregnancy a...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2000.106753
更新日期：2000-09-01 00:00:00
abstract：OBJECTIVE:The purpose of our study was to examine the neuronal outcome after a standardized period of umbilical cord occlusion. STUDY DESIGN:The umbilical cord was clamped for 10 minutes in nine experimental and four control chronically instrumented fetal sheep. Three days later the animals were killed for histologic ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(11)91728-1
更新日期：1992-11-01 00:00:00
abstract：:Experiments were conducted with 11 chronically catheterized fetal sheep to determine the effects of norepinephrine on the distribution of umbilical venous blood through the ductus venosus, and within the fetal liver. An intraumbilical infusion of 1.1 microgram/kg/min of norepinephrine increased placental blood flow bu...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(80)90388-9
更新日期：1980-05-01 00:00:00
abstract：:One hundred fifty-eight intravenous saline solution infusions (3 mmol Na per kilogram body weight) were performed in (1) normal primigravid women during the second and third trimesters and post partum, after 1 week of either a high, low, or ad libitum salt intake; (2) normotensive primigravid women during midpregnancy...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(88)80071-1
更新日期：1988-08-01 00:00:00
abstract：:Perimenopause represents a transition period lasting about 5 years before the permanent cessation of spontaneous menses. During this transition, the emphasis of clinical care changes. Although women still need effective contraception during perimenopause, issues including loss of bone mineral density, menstrual cycle ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1067/mob.2001.116525
更新日期：2001-08-01 00:00:00
abstract：:We analyzed the ultrasound examinations and medical records of 75 pairs of twins who were delivered between January, 1983, and December, 1984, to study the relationship between increased amniotic fluid volume, fetal abnormalities, and preterm labor. Ten of these 75 twin pregnancies demonstrated elevated amniotic fluid...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(86)90752-0
更新日期：1986-05-01 00:00:00
abstract：OBJECTIVES:Our goals were (1) to determine whether hypertension, proteinuria, and glomerular endotheliosis can be produced by chronic reduction of lower aortic pressure in pregnant rhesus monkeys and (2) to study the time course of the development of hypertension by means of longitudinal arterial blood pressure measure...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(93)90171-e
更新日期：1993-07-01 00:00:00
abstract：OBJECTIVE:Absent end-diastolic blood flow in the umbilical artery identifies growth-restricted fetuses at high risk of perinatal mortality and severe morbidity. We explored antenatal variables predictive of perinatal mortality or severe neonatal morbidity in such fetuses. STUDY DESIGN:We accessed a cohort of 39 single...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2005.07.032
更新日期：2005-09-01 00:00:00
