Abstract:
:Blood samples were obtained from 5 women during the menstrual cycle in which they had conceived. Although neither the women nor their physicians were clinically aware that conception had occurred, one or more of the blood specimens from each woman contained human chorionic gonadotropin (hCG), as measured by a specific radioimmunoassay. Each patient underwent a spontaneous abortion with 4 of the 5 women describing a delayed, but otherwise normal, menses. The fifth noted an unusually abundant amount of vaginal bleeding. Immunologic urinary pregnancy slide tests were negative in the 4 women on whom the tests were performed. The levels of hCG in the serum of these women were abnormally low for the estimated length of gestation, suggesting that defective trophoblastic function may be important in the pathogenesis of this phenomenon. These examples illustrate that some women may conceive and abort so early that the pregnancy and the abortion may remain subclinical. Therefore, it is likely that the true incidence of spontaneous abortions during the first trimester is greater than the presently accepted incidence of 15%.
journal_name
Obstet Gynecoljournal_title
Obstetrics and gynecologyauthors
Braunstein GD,Karow WG,Gentry WD,Wade MEsubject
Has Abstractpub_date
1977-07-01 00:00:00pages
41s-44sissue
1 Suppleissn
0029-7844issn
1873-233Xjournal_volume
50pub_type
杂志文章abstract:BACKGROUND:Aneuploidy is frequently cited as an etiology of hydrops fetalis. Traditionally, associated anomalies (specifically cardiovascular abnormalities) have been postulated as the causative factor. CASES:We report two cases of severe anemia associated with hydrops in fetuses that later proved to have Down syndrom...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1993-10-01 00:00:00
abstract:BACKGROUND:Women with a history of pregnancy loss in the second trimester are often diagnosed with cervical insufficiency and are treated with cervical cerclage. We present an unusual complication of this procedure that mimicked preterm rupture of membranes. CASE:A 38-year-old woman with a history of cervical conizati...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000247291.00155.88
更新日期:2007-02-01 00:00:00
abstract:OBJECTIVE:To investigate which second-trimester ultrasound markers for aneuploidy are the most diagnostically efficient in detecting fetal trisomy 21. METHODS:All second-trimester genetic sonograms performed since November 1, 1992 for women at increased risk for fetal trisomy 21 were analyzed retrospectively. Statisti...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(97)00152-x
更新日期:1997-06-01 00:00:00
abstract:OBJECTIVE:To quantitatively and qualitatively describe the patient experience for clinically stable patients presenting with miscarriage to the emergency department (ED) or ambulatory clinics. METHODS:We present a subanalysis of a mixed-methods study from 2016 on factors that influence miscarriage treatment decision-m...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000003571
更新日期:2019-12-01 00:00:00
abstract:OBJECTIVE:Vaginal apex pain is a subset of chronic pelvic pain commonly treated with surgical excision of the vaginal apex. Our objective was to estimate long-term postoperative pain levels, recovery time, and return to sexual function in women who have undergone vaginal apex repair for chronic vaginal apex pain. METH...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000143827.17061.7b
更新日期:2004-12-01 00:00:00
abstract::Mississippi enacted medical negligence and other tort reform legislation that generally became effective for causes of action filed on or after January 1, 2003, and September 1, 2004. Data regarding lawsuits against physicians insured by the Medical Assurance Company of Mississippi (MACM), the largest medical liabilit...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0b013e318226ba47
更新日期:2011-08-01 00:00:00
abstract:OBJECTIVE:To determine the prevalence of urinary dysfunction in Hong Kong Chinese women. METHODS:A telephone survey was conducted in the territory of Hong Kong. The subjects were a sample of women between the ages of 10 and 90 years. The main outcome determined was the prevalence of urinary dysfunction. RESULTS:We ma...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/S0029-7844(96)00335-3
更新日期:1996-12-01 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:OBJECTIVE:To determine whether women who are poorly nourished in early pregnancy, as determined by triceps skinfold thickness, or who have poor pregnancy weight gain have offspring with higher blood pressure (BP). METHODS:We evaluated 296 11-year-old children born to women who had taken part in a study of nutrition in...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(97)00581-4
更新日期:1998-01-01 00:00:00
abstract::Maternal and infant health is critical to our nation's health. Disparities remain unacceptably high, particularly in the areas of prematurity and infant mortality. In 2012, traditionally distant partners such as federal and state governments, Medicaid and commercial payers, patients, public health and private clinicia...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000000320
更新日期:2014-07-01 00:00:00
abstract::A new fetal scalp electrode applicator system uses a guide tube with increased curvature and a plunger mechanism to advance, rotate, and release the spiral electrode. Results of a preliminary survey among house staff who used the system in 51 patients indicated a favorable impression, with 96.1% of the applications ra...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1991-03-01 00:00:00
abstract:BACKGROUND:Successful DNA typing after rape is limited when only a few sperm and numerous vaginal cells are recovered from a swab, resulting in an extremely unfavorable ratio of male to female DNA. The goal of this study was to develop a protocol involving sperm cell sorting with flow cytometry based on differences in ...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(99)00373-7
更新日期:1999-10-01 00:00:00
abstract:BACKGROUND:Twin reverse arterial perfusion, as with acardiac fetuses, is a rare complication of multifetal pregnancy. Prognosis of the donor twin is guarded because of the high risk of cardiac failure, polyhydramnios, and preterm delivery. CASE:A 40-year-old woman, gravida 4, para 3, was diagnosed at 19 weeks' gestati...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/s0029-7844(00)01042-5
更新日期:2000-11-01 00:00:00
abstract::In 1992, the Executive Council of the Association of American Medical Colleges recommended that a computerized application system be investigated. Under this system, the application package would include: 1) a standardized application form, 2) a personal statement, 3) a dean's letter, 4) transcripts, 5) a chairman's l...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0029-7844(94)00388-T
更新日期:1995-02-01 00:00:00
abstract:OBJECTIVE:To compare extra-amniotic infusion of diluted prostaglandin (PG) E2 solution with saline infusion in balloon cervical ripening and labor induction. METHODS:Women with pregnancy complications and Bishop scores of 3 or lower (n = 116) were assigned randomly to receive extra-amniotic infusion (1 mL/minute) of n...
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(00)01168-6
更新日期:2001-03-01 00:00:00
abstract:OBJECTIVE:To estimate the association between obstetric forceps volume and severe perineal lacerations or adverse neonatal outcomes. METHODS:This is a retrospective cohort of forceps deliveries performed at a tertiary care hospital. Obstetricians were grouped by quartile of forceps volume over the study time period. S...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000000096
更新日期:2014-02-01 00:00:00
abstract:OBJECTIVE:To describe obesity prevention and treatment practices of U.S. obstetrician-gynecologists. METHODS:A cross-sectional survey was mailed to 1,806 practicing members of the American College of Obstetricians and Gynecologists (ACOG) in February-April 2005. RESULTS:Of the 900 respondents who returned questionnai...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000233171.20484.db
更新日期:2006-10-01 00:00:00
abstract:OBJECTIVE:To assess the frequency of cervical stenosis in patients treated by laser conization or the loop electrosurgical excision procedure and to determine the preoperative and therapeutic factors associated with its occurrence. METHODS:Two hundred fifty-five women treated by laser conization and 277 treated by loo...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/S0029-7844(96)00331-6
更新日期:1996-12-01 00:00:00
abstract:BACKGROUND:Abdominal pregnancies are rare types of ectopic pregnancies with high rates of maternal mortality and morbidity when encountered anywhere in the world. Combining such high-risk pregnancy with the limitations found in a low-resource setting can lead to increased complications, which can be more difficult to m...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000000706
更新日期:2015-05-01 00:00:00
abstract::The greater vestibular glands produce a secretion during the plateau stage of sexual response. If the duct of the gland is partially or completely occluded, the secretion cannot be released and pain results from the pressure of the entrapped secretion. The pain is specific in its location and is elicited regardless of...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1983-08-01 00:00:00
abstract::Two hundred women were studied in a randomized controlled trial of induction of labor using high-dose (3 mg) or low-dose (0.5 mg) prostaglandin E2 vaginal pessaries. Induction using 3-mg pessaries was more successful, with a shorter overall induction-delivery interval and less requirement for analgesia, although uteri...
journal_title:Obstetrics and gynecology
pub_type: 临床试验,杂志文章
doi:
更新日期:1984-03-01 00:00:00
abstract:OBJECTIVE:To evaluate risk factors related to anamnestic variables, sexual behavior, feminine hygiene habits, and microbiologic findings in women with idiopathic recurrent vulvovaginal candidiasis. METHODS:We conducted a multivariate observational study comparing sociodemographic, anamnestic, clinical, and microbiolog...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1993-05-01 00:00:00
abstract:BACKGROUND:Placental abscess formation is rarely recognized prenatally. We present a case detected ultrasonographically that developed from a central line infection and caused recurrent maternal bacteremia. CASE:A young woman with a 21-week twin gestation presented with recurrent fevers. She had received treatment for...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/01.AOG.0000165268.09352.ed
更新日期:2006-02-01 00:00:00
abstract::One hundred women were admitted to the hospital between 7 and 18 weeks' gestation because of vaginal bleeding and threatened abortion. Serum concentration of estradiol-17 beta was determined by radioimmunoassay. Ultrasound examination using a gray-scale scanner was performed as well. The values for prediction of abort...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/00006250-198003000-00011
更新日期:1980-03-01 00:00:00
abstract:OBJECTIVE:The purpose of this study was to determine the frequency, distribution, and most likely etiology of hematologic and weight discordance in pathologically proven monochorionic twins, and to use this information to reevaluate the neonatally derived definition of the twin-twin transfusion syndrome. METHODS:We re...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:
更新日期:1992-08-01 00:00:00
abstract:OBJECTIVE:To determine if pregnancy intendedness is associated with physical violence, and to identify factors that modify this association. METHODS:Three to 6 months after delivery, we mailed a questionnaire to a population-based sample of 12,612 mothers of infants born during 1990 and 1991 in four states. We used mu...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1016/0029-7844(95)00057-x
更新日期:1995-06-01 00:00:00
abstract:OBJECTIVE:To present tactics for optimizing outpatient vaginal hysterectomy and describe perioperative outcomes in a large consecutive case series. METHODS:This is a descriptive study and review of clinical outcomes in 1,071 patients selected to undergo vaginal hysterectomy for benign indications from 2000 to 2010. Th...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/aog.0b013e3182732ece
更新日期:2012-12-01 00:00:00
abstract:BACKGROUND:Spectral Doppler ultrasound, an important diagnostic tool for the functional assessment of various organs, as yet has no major use in prenatal diagnosis due to the conventional technique's limitation of analyzing only one site at a time. Our aim was to develop a new modality that shows simultaneous studies o...
journal_title:Obstetrics and gynecology
pub_type: 临床试验,杂志文章
doi:
更新日期:1998-08-01 00:00:00
abstract::Sacral nerve stimulation delivers nonpainful electrical pulses to the sacral nerves that modulate the reflexes that control the bladder, bowels, and pelvic floor musculature. This relatively simple procedure was generated to improve and restore function in patients with a variety of pelvic floor disorders. Currently t...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章,评审
doi:10.1097/AOG.0000000000002968
更新日期:2018-12-01 00:00:00
abstract:OBJECTIVE:To estimate how implementation of the 2010 Affordable Care Act (ACA) might be associated with stage at diagnosis and time to treatment for women with ovarian cancer. METHODS:We conducted a retrospective cohort study using difference-in-differences analysis comparing stage at diagnosis and time to treatment b...
journal_title:Obstetrics and gynecology
pub_type: 杂志文章
doi:10.1097/AOG.0000000000003630
更新日期:2020-02-01 00:00:00