Abstract:
:A prospective ultrasound study was conducted in 289 uncomplicated pregnancies with gestational ages ranging from 16-40 weeks. Biometric measurements obtained included biparietal diameter (BPD), head and abdominal circumferences, measurements of long bones, and maximal transverse colon diameter. The pattern of small intestinal peristalsis, presence of colonic haustra, and progressive changes in the colon's intraluminal echogenicity were also evaluated. A high degree of correlation was found between gestational age and transverse colon diameter (in millimeters) (R2 = 0.859; P less than .0001), increasing colonic intraluminal echogenicity (R2 = 0.741; P less than .0001), and the appearance and progressive increase in small intestinal peristalsis (R2 = 0.726; P less than .0001). Colonic haustra were visualized in 87.5% after 30 weeks (specificity 100%, sensitivity 77.4%). A high degree of correlation with gestational age was also found if echogenicity and peristalsis were combined (R2 = 0.873; P less than .0001), and proved superior to that found with measurement of BPD (R2 = 0.655; P less than .0001) or femur length (R2 = 0.805; P less than .0001) after 28 weeks. Observations of progressive changes in small intestinal peristalsis and colonic intraluminal echogenicity, together with the development of colonic haustra and progressive increase in transverse colon diameter, allow one to estimate gestational age independent of standard biometry. This approach has particular utility in the third trimester, when sonographic estimation of gestational age is least accurate.
journal_name
Obstet Gynecoljournal_title
Obstetrics and gynecologyauthors
Goldstein I,Lockwood C,Hobbins JCsubject
Has Abstractpub_date
1987-11-01 00:00:00pages
682-6issue
5eissn
0029-7844issn
1873-233Xjournal_volume
70pub_type
杂志文章abstract:OBJECTIVE:To compare temporal trends of urogynecologic mesh medical device reports with sentinel U.S. Food and Drug Administration (FDA) notices and to examine all linked reports of patient death. METHODS:The Reed Tech Navigator is an online tool used to extract and analyze data in the Manufacturer and User Facility D...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000003805
更新日期:2020-05-01 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:BACKGROUND:Although most patients with a surgical stage I endometrial cancer have an excellent prognosis, some patients will experience a recurrence. Endometrial cancer typically recurs at the vaginal cuff or in the pelvis; however, it can recur distantly in the abdomen or lung. Although recurrences have been reported ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000123268.57857.0d
更新日期:2004-11-01 00:00:00
abstract::Eight gravidas with symptomatic polyhydramnios were managed with maternal indomethacin therapy. The mean gestational age at presentation was 28.6 +/- 3.5 weeks. Only patients requiring serial amniotic fluid decompressions for rapid amniotic fluid reaccumulation were enrolled in the study. An initial amniotic fluid dec...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1990-02-01 00:00:00
abstract::To study time trends in maternal mortality in the United States and to attempt to compare the risk of cesarean with vaginal delivery, information from the Professional Activities Study of the Commission on Professional and Hospital Activities for 3 years-1970, 1974, and 1978-was reviewed. For all deliveries, mortality...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1982-01-01 00:00:00
abstract::The effects of a controlled sodium bicarbonate (SB) infusion on the acid-base balance of the primiparous mother and fetus at labor and delivery were evaluated. Two identical groups of primiparas with normal labor and delivery were studied. According to acid-base parameters observed in the mothers and fetuses of a cont...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1979-11-01 00:00:00
abstract:OBJECTIVE:To examine the risk factors for adult (aged 20 years and older) paternity in births to teenagers (14-17 years of age). METHODS:This was a population-based, retrospective cohort analysis of 27,215 adolescent mothers residing in California who had a live singleton birth during 1993. Adjusted risks for adult pa...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/S0029-7844(96)00481-4
更新日期:1997-02-01 00:00:00
abstract:OBJECTIVE:To collect data from nine European countries for cases of obstetric hemorrhage between 2000 and 2004 in which recombinant activated factor VII (rFVIIa) was used. METHODS:The cases were identified through national surveys. Standardized case report forms included sociodemographic details, past medical and obst...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000288515.48066.99
更新日期:2007-12-01 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:OBJECTIVE:To compare station and cervical dilation at the time of epidural placement for predicting cesarean delivery risk. METHODS:This prospective cohort study included 275 women in labor with live, singleton fetuses at term in vertex presentations. We excluded women with preeclampsia or previous cesarean deliveries...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(98)00370-6
更新日期:1999-02-01 00:00:00
abstract:OBJECTIVE:Epidermal growth factor is a ubiquitous mitogen that also possesses insulin-like properties. Fetal mal-growth is associated with altered epidermal growth factor levels. Maternal diabetes is frequently complicated by macrosomia, but the effect of maternal diabetes on fetal epidermal growth factor levels is not...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000110545.64874.49
更新日期:2004-02-01 00:00:00
abstract:OBJECTIVE:To examine whether maternal meal ingestion affects the fetal circulation in uncomplicated pregnancies. METHODS:A simple crossover blinded study was designed for late uncomplicated singleton pregnancies. After overnight fasting, two different maternal meal states were tested. In one state, pregnant women had ...
journal_title:Obstetrics and gynecology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/s0029-7844(97)00281-0
更新日期:1997-09-01 00:00:00
abstract::One hundred consecutive cases of hyperplasia of the endometrium were referred to the Sloane Hospital for Women. The referral diagnoses and consultation diagnoses were compared for the purpose of analyzing common diagnostic problems in interpretation of endometrial hyperplasias and the use of diagnostic terminology as ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1984-08-01 00:00:00
abstract::A 68-year-old postmenopausal patient with adenoid cystic carcinoma of the cervic is described. Thirty-two other cases were collected from the literature, and a clinicopathologic analysis for the whole group is presented. The study indicates that a) adenoid cystic carcinoma usually occurs in postmenopausal patients in ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/00006250-197506000-00018
更新日期:1975-06-01 00:00:00
abstract::Patients with a laparoscopically verified first episode of acute salpingitis were offered a second-look laparoscopy to determine the effectiveness of the treatment regimen in terms of anatomic end result as well as to correlate the anatomic end result with future fertility. Until now, 13 women have been subjected to s...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1983-06-01 00:00:00
abstract::Acknowledgement of the importance of patient autonomy and increased patient access to information has prompted more patient - generated requests for surgical interventions not necessarily recommended by their physicians. Decision making in obstetrics and gynecology should be guided by the ethical principles of respect...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000291581.16747.24
更新日期:2008-01-01 00:00:00
abstract::Terbutaline was administered to 50 women, all diagnosed as being in labor prior to 36 weeks' gestation. In 47, uterine activity was initially arrested with intravenous therapy. The infusion rate required to arrest uterine activity ranged from 10 to 80 microgram/min and 21 of the 50 patients (42%) required more than on...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/00006250-197804000-00001
更新日期:1978-04-01 00:00:00
abstract:OBJECTIVE:Increasing use of fertility drugs is considered the primary cause for the recent increase in dizygotic twinning in developed countries. However, dizygotic twinning has also been related to obesity in foreign populations. We sought to confirm this relationship in U.S. pregnancies, which predated widespread use...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000153491.09525.dd
更新日期:2005-03-01 00:00:00
abstract::Because autoimmune diseases are suspected of causing some cases of recurrent pregnancy loss, we sought clinical and serologic evidence of such diseases in a group of 277 women with recurrent pregnancy loss. Using HEp-2 cells as targets for an indirect immunofluorescence test for antinuclear antibodies, we compared the...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1989-03-01 00:00:00
abstract::For certain medical conditions, available data and expert opinion support optimal timing of delivery in the late-preterm or early-term period for improved neonatal and infant outcomes. However, for nonmedically indicated early-term deliveries such an improvement has not been demonstrated. Morbidity and mortality rates...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000428649.57622.a7
更新日期:2013-04-01 00:00:00
abstract:BACKGROUND:Women with Mayer-Rokitansky-Küster-Hauser syndrome fail to develop müllerian ducts, present with primary amenorrhea, and an absent or rudimentary uterus and vagina. After creation of a neovagina, vaginal vault prolapse may occur because of lack of support to the artificially created vagina. CASES:The first ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(02)01969-5
更新日期:2002-05-01 00:00:00
abstract:UNLABELLED:ōk--q----_xD-xD whether maternal antenatal therapy with vitamin K and phenobarbital prevents intracranial hemorrhage in premature newborns. METHODS:Women at high risk for spontaneous or indicated premature delivery before 34 weeks' gestation were randomly assigned to receive either placebo or vitamin K and ...
journal_title:Obstetrics and gynecology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1016/0029-7844(95)00091-5
更新日期:1995-07-01 00:00:00
abstract::Sixty percent of American Indian and Alaska Native women live in metropolitan areas. Most are not eligible for health care provided by the federal Indian Health Service (IHS). The IHS partly funds 34 Urban Indian Health Organizations, which vary in size and services. Some are small informational and referral sites tha...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000410162.34363.0b
更新日期:2012-01-01 00:00:00
abstract::Cervical softening by vaginal administration of a prostaglandin E1 analogue (ONO-802) was studied in a double-blind, placebo-controlled study using an objective measure of cervical resistance in 121 women undergoing first trimester induced abortion. Three hours after administration, cervical resistance in control and ...
journal_title:Obstetrics and gynecology
pub_type: 临床试验,杂志文章
doi:
更新日期:1987-01-01 00:00:00
abstract:OBJECTIVE:To evaluate the presence of fetal fibronectin in the cervix and vagina as a screening test for spontaneous preterm birth. METHODS:Two thousand nine hundred twenty-nine women at ten centers were routinely screened every 2 weeks from 22-24 to 30 weeks for cervical and vaginal fetal fibronectin. A positive test...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,多中心研究
doi:10.1016/0029-7844(96)00035-x
更新日期:1996-05-01 00:00:00
abstract:OBJECTIVE:To estimate whether race or ethnic and socioeconomic strata are independently associated with advanced-stage ovarian cancer-specific survival after adjusting for adherence to National Comprehensive Cancer Network treatment guidelines. METHODS:The design was a retrospective population-based cohort study of pa...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000000643
更新日期:2015-04-01 00:00:00
abstract:OBJECTIVE:To compare resistance index (RI) and pulsatility index (PI) in the spiral and intervillous arteries, and peak systolic velocity of the continuous intervillous flow in normal and abnormal first-trimester pregnancy. METHODS:Transvaginal color and pulsed Doppler were used in a prospective analysis of 60 normal ...
journal_title:Obstetrics and gynecology
pub_type: 临床试验,杂志文章
doi:10.1016/S0029-7844(96)00422-X
更新日期:1997-02-01 00:00:00
abstract:OBJECTIVE:To determine whether rupture of malignant ovarian epithelial tumors at the time of operation influences the patient's overall prognosis. METHODS:Between 1975 and 1990, 79 patients with stage I invasive epithelial ovarian cancer were treated at Massachusetts General Hospital. Patients were identified from the...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1994-07-01 00:00:00
abstract:OBJECTIVE:To compare persistent ectopic pregnancy after laparoscopic salpingostomy versus salpingostomy at laparotomy for the treatment of intact ampullary ectopic pregnancy. METHODS:We reviewed the medical records of 157 patients who had undergone salpingostomy for intact ampullary ectopic pregnancy at Yale-New Haven...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1993-03-01 00:00:00
abstract::Serum glucose levels were measured in 50 nondiabetic pregnant women between 33 and 43 weeks' gestation following a nonstress test (NST) to determine the relationship between maternal glucose levels and the results of the NST. Two comparable groups of 25 patients each were formed based on the NST results, reactive and ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1982-10-01 00:00:00