Abstract：
:Over a 63-month period beginning January 1, 1977, 258 infants with birth weights of 500-999 g were born alive at one tertiary perinatal center; 170 were offered full intensive care. The mothers of 67 (39.4%) of these 170 infants had been given betamethasone antenatally to accelerate fetal lung maturation. Of the 67 infants exposed to steroids antenatally, 46 (68.7%) survived their primary hospitalization, compared with 43 (41.7%) of the 103 infants who had not been exposed to steroids. This difference is highly significant (chi 2 = 10.7; P less than .005) but is biased because infants in the steroid group had a better prognosis. After adjustment for discrepancies in birth weight and gestational age and other confounding obstetric variables, survival in the steroid group remained substantially higher (relative odds of survival 1.85, 95% confidence intervals 1.16-2.86; P = .006). The improvements in survival were not at the expense of increased rates of chronic ill health or impairments of growth neurodevelopment up to at least 5 years of age. For extremely immature and extremely low birth weight infants, steroids are rarely contraindicated on fetal grounds.
journal_name
Obstet Gynecoljournal_title
Obstetrics and gynecologyauthors
Doyle LW,Kitchen WH,Ford GW,Rickards AL,Kelly EAsubject
Has Abstractpub_date
1989-05-01 00:00:00pages
743-6issue
5 Pt 1eissn
0029-7844issn
1873-233Xjournal_volume
73pub_type
杂志文章abstract：:An assay has been developed and evaluated that quantifies the surface tension lowering ability of amniotic fluid surfactant. The formation of stable foam following vigorous shaking of amniotic fluid was evaluated by the addition of various amounts of dipalmitoyl lecithin in a solution of ethanol and saline and by fine...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1978-12-01 00:00:00
abstract：:Although cryosurgery is regularly used for treatment of cervical intraepithelial neoplasia (CIN), there are few data concerning freeze technique and attendant extension of the cryolesion. This study evaluated how to create cryolesions extensive enough to eradicate the CIN lesion completely. The way the extension of th...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1990-02-01 00:00:00
abstract：:Predictors of postpartum endometritis were identified in 607 asymptomatic, laboring women. One hundred (16.5%) developed postpartum endometritis. Multivariate analysis using stepwise logistic regression identified cesarean delivery (relative risk 12.8; P less than .0001) as the dominant overall predictor. In patients ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1990-03-01 00:00:00
abstract：OBJECTIVE:Postcesarean endometritis and wound infection remain significant morbidities, despite use of strategies to prevent these complications. We investigated the effect of preoperative vaginal preparation with povidone-iodine as a preventive intervention against postcesarean endometritis and wound infection. METHO...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1097/01.AOG.0000164032.16599.7e
更新日期：2005-05-01 00:00:00
abstract：:A double-blind study was carried out to compare the effect of submucous paracervical blockade using 12 mL 0.25% bupivacaine (55 women) to the effect of intramuscular injection of 75 mg meperidine (62 women) during the first stage of labor. All 117 were normal primiparous pregnancies. Seventy-eight percent of the women...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：
更新日期：1984-11-01 00:00:00
abstract：:A randomized prospective study compared the efficacy of a three-dose perioperative course of intravenously administered cefuroxime and metronidazole versus suction drainage of the vaginal vault for preventing postoperative infection in abdominal and vaginal hysterectomies. In vaginally operated patients, a significant...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1987-09-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to determine whether the placental transfer of interleukin (IL)-1alpha, IL-6, and tumor necrosis factor-alpha (TNF-alpha) occurs. METHODS:Four normal-term placentas were perfused for maternal-fetal transfer of the cytokines, 2 placentas for fetal-maternal transfer, and 4 additio...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/01.AOG.0000114980.40445.83
更新日期：2004-03-01 00:00:00
abstract：:We report the first known case of Chediak-Higashi syndrome in human pregnancy. This rare autosomal recessive disorder is characterized by partial oculocutaneous albinism, decreased leukocyte chemotaxis, susceptibility to infection, and death in childhood. Pathognomonic giant cytoplasmic granules are postulated to be d...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1992-05-01 00:00:00
abstract：:Given that practice variation exists in the frequency and performance of ultrasound and magnetic resonance imaging (MRI) in pregnancy, the Eunice Kennedy Shriver National Institute of Child Health and Human Development hosted a workshop to address indications for ultrasound and MRI in pregnancy, to discuss when and ho...
journal_title：Obstetrics and gynecology
pub_type：
doi：10.1097/AOG.0000000000000245
更新日期：2014-05-01 00:00:00
abstract：:As hospitals and medical schools confronted coronavirus disease 2019 (COVID-19), medical students were essentially restricted from all clinical work in an effort to prioritize their safety and the safety of others. One downstream effect of this decision was that students were designated as nonessential, in contrast to...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000004113
更新日期：2020-10-01 00:00:00
abstract：:The use of the nitroblue tetrozolium (NRT) dye reduction test as a screening method for bacterial and fungal infections is now widely recognized. Levels have been reported to be falsely elevated in the pregnant state. This report includes a prospective study which showed that the results of this test in 124 pregnant w...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1975-03-01 00:00:00
abstract：:The endocrine effects of induction of ovulation with menotropins were studied in 43 patients: 11 with hypothalamic amenorrhea and 32 with the polycystic ovary syndrome. Patients with polycystic ovary syndrome had higher base-line values of serum follicle-stimulating hormone (FSH), luteinizing hormone (LH), 17 beta-est...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1985-02-01 00:00:00
abstract：:Recent studies using newly devised serologic techniques have dramatically advanced our understanding of gonadal organogenesis and aberrant sexual differentiation. Thus XY gonadal dysgenesis, XX male syndrome, and XX true hermaphroditism, for example, may be seen as typifying specific errors of regulation, synthesis, o...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,评审
doi：
更新日期：1979-12-01 00:00:00
abstract：BACKGROUND:Extensive bowel resection may lead to a state of inadequate nutrient absorption and malnutrition known as short bowel syndrome. Deficiencies in fat-soluble vitamins may occur from this condition, with sequelae such as a bleeding diathesis. Maternal vitamin deficiencies also have been associated with fetal an...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/aog.0b013e31827e5ab3
更新日期：2013-02-01 00:00:00
abstract：OBJECTIVE:To describe obstetric health care providers' responses and counseling approaches to patients' disclosures of marijuana use during first prenatal visits. METHODS:We performed a content analysis of audio-recorded patient-health care provider first prenatal visits for obstetrics health care providers' responses...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000001343
更新日期：2016-04-01 00:00:00
abstract：:This study was designed to compare the effects of two low-dose triphasic oral contraceptives (OCs) on glucose tolerance and insulin secretion. Fifty-seven women were randomized to receive OCs containing ethinyl estradiol and either levonorgestrel or norethindrone. Ten subjects using nonhormonal contraception served as...
journal_title：Obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1991-07-01 00:00:00
abstract：OBJECTIVE:To find whether pulse pressure, a measure of arterial compliance, is associated early in pregnancy with increased risk of developing preeclampsia. METHODS:In a prospective cohort of 576 nulliparas, we examined blood pressures throughout pregnancy and at 6-8 weeks postpartum. Measurements during weeks 7-15, 1...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0029-7844(00)01192-3
更新日期：2001-04-01 00:00:00
abstract：:A 26-year-old woman was admitted with a diagnosis of septic incomplete abortion. Subsequently she was discovered to have bilateral tubal ectopic pregnancies. The right tube was not badly damaged. Its contents were removed by linear salpingotomy and the tube was repaired. Fifteen months later the patient delivered a li...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1982-11-01 00:00:00
abstract：BACKGROUND:Reptile- and amphibian-associated salmonellosis poses significant risk to infants and young children. The Centers for Disease Control and Prevention has advised that reptiles and amphibians should not be kept in households with children younger than 5 years old. CASE:We report a 5-day-old newborn with Salmo...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/01.AOG.0000187950.37065.87
更新日期：2006-02-01 00:00:00
abstract：:Intrauterine exposure to diethylstilbestrol (DES) has been associated with ths subsequent rare development of clear cell adenocarcinoma of the vagina and cervix in exposed female progeny. These tumors have been seen thus far in patients between the ages of 7 and 29 years. In addition, nonmalignant epithelial and struc...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,评审
doi：
更新日期：1981-11-01 00:00:00
abstract：OBJECTIVE:To generate estimates of the association between markers of ovarian aging and natural fertility in a community sample at risk for ovarian aging. METHODS:Women aged 30-44 years with no history of infertility who had been trying to conceive for less than 3 months provided early-follicular phase serum and urine...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0b013e3182116bc8
更新日期：2011-04-01 00:00:00
abstract：:The cardiovascular effects of ritodrine tocolytic therapy were assessed by noninvasive simultaneous recordings of indirect carotid pulse, electrocardiogram (ECG), phonocardiogram, and M-mode echocardiogram in 12 patients in preterm labor. The study was performed before and during infusion, and afterward when the patie...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1987-10-01 00:00:00
abstract：:A method of ablating the endometrium has been introduced into clinical practice that uses radiofrequency electromagnetic energy to heat the endometrium, using a probe inserted through the cervix. Preliminary studies suggest that over 80% of patients treated will develop either amenorrhea or a significant reduction in ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/00006250-199011000-00032
更新日期：1990-11-01 00:00:00
abstract：:The obstetric hospitalist and the obstetric and gynecologic hospitalist evolved in response to diverse forces in medicine, including the need for leadership on labor and delivery units, an increasing emphasis on quality and safety in obstetrics and gynecology, the changing demographics of the obstetric and gynecologic...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1097/AOG.0000000000001235
更新日期：2016-02-01 00:00:00
abstract：:In the past, the period from 3 weeks before until 2 weeks after the estimated date of delivery was considered "term," with the expectation that neonatal outcomes from deliveries in this interval were uniform and good. Increasingly, however, research has shown that neonatal outcomes, especially respiratory morbidity, v...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/01.AOG.0000437385.88715.4a
更新日期：2013-11-01 00:00:00
abstract：:Fourteen patients with stage IB or IIA neuroendocrine small-cell cervical cancer were treated either by operation alone or operation in combination with postoperative radiotherapy at the University of California, Irvine Medical Center, and Memorial Medical Center of Long Beach, between January 1979 and February 1986. ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1988-01-01 00:00:00
abstract：OBJECTIVE:Time is an important variable in understanding the recent increase in twin deliveries in the United States. Therefore, this study was designed to estimate the influences of maternal age, period (year) of delivery, and maternal-birth-year cohort on trends in rates of twin deliveries. METHODS:United States nat...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/01.AOG.0000134524.58795.bd
更新日期：2004-08-01 00:00:00
abstract：:The influence of prostaglandins as well as adrenoceptor agonists and antagonists on contractile activity of isolated cervical smooth muscle from term pregnant women was studied. Prostaglandin E2 had an inhibitory effect at extremely low concentrations. Inhibition also was induced by prostaglandin F2 alpha, prostagland...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1986-04-01 00:00:00
abstract：OBJECTIVE:To explore the shared experiences of miscarriage using a qualitative analysis of social media posts on Instagram. METHODS:We performed this qualitative study by collecting text, photos, hashtags, and emoji from 200 Instagram posts on five arbitrarily selected days in 2019. Key eligibility criteria included p...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：10.1097/AOG.0000000000003621
更新日期：2020-01-01 00:00:00
abstract：:The maternal serum alpha-fetoprotein (AFP) in 6161 women in routine pregnancy [2771 in a hospital obstetric clinic (group 1) and 3390 in private practices (group 2)] was studied. Group 1 studies enabled the delineation of the normal range of serum AFP, whereas group 2 represented a true screening experience. In group ...
journal_title：Obstetrics and gynecology
pub_type： 杂志文章
doi：
更新日期：1980-01-01 00:00:00
