Abstract：
OBJECTIVE:Our purpose was to improve the accuracy of prenatal prognostication by directly correlating obstetric ultrasonographic measurements with neonatal survival. STUDY DESIGN:We studied 130 singleton live-born infants with birth weights between 500 and 1000 gm and who underwent complete ultrasonographic examinations within 3 days of delivery. Ultrasonographic measurements were evaluated as screening tests for neonatal survival by means of receiver-operator characteristic curves and compared with birth weight and pediatric assessment of gestational age. RESULTS:Eighty infants survived, and 50 died. Visual inspection of the receiver-operator characteristic curves indicated that biparietal diameter was the best predictor of survival. While correctly identifying all survivors, biparietal diameter predicted nonsurvivors better (p < 0.0001) than did actual birth weight or any other variable. CONCLUSION:Our findings indicate that using biparietal diameter to determine neonatal prognosis is significantly more reliable than the current practice of using estimated fetal weight. We speculate that biparietal diameter may reflect maturity more accurately because it is less subject to variation in growth.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Smith RS,Bottoms SFdoi
10.1016/0002-9378(93)90606-jsubject
Has Abstractpub_date
1993-09-01 00:00:00pages
490-3issue
3eissn
0002-9378issn
1097-6868pii
0002-9378(93)90606-Jjournal_volume
169pub_type
杂志文章abstract：:Intervillous placental blood flow and indices of fetal heart rate variability were measured from seven healthy pregnant women in the last trimester of pregnancy, once before and twice after smoking one cigarette. A blood flow reduction was observed in seven, a rise in five, and no change in two measurements. When inte...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(83)90975-4
更新日期：1983-08-15 00:00:00
abstract：:In the rabbit model of the ovarian hyperstimulation syndrome, animals given ovine prolactin with human menopausal gonadotropins (hMGs), as compared to animals receiving hMGs alone, demonstrated an increase in the formation of ascitic fluid, a decrease in mean plasma estradiol, and an increase in the mean plasma proges...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(83)90690-7
更新日期：1983-04-01 00:00:00
abstract：:The catecholamine metabolites HMPG and VMA have been determined in samples of amniotic fluid in 38 uncomplicated pregnancies, seven cases of IUGR, and six cases of diabetes. A successive increase of HMPG and VMA was found toward the end of the pregnancy. HMPG and particularly the HMPG/VMA ratio were significantly high...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(80)90639-0
更新日期：1980-04-15 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
abstract：:An isolated heart preparation was used to study the effects of terbutaline sulfate (Brethine) on fetal cardiac function. Pregnant guinea pigs received daily subcutaneous injections of terbutaline for 10 day, whereas a control group received placebo injections. Fetal guinea pig hearts were evaluated for cariodynamic an...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90346-3
更新日期：1989-09-01 00:00:00
abstract：OBJECTIVE:The purposes of this study were to examine endothelial nitric oxide synthase expression in endothelial cells and to determine whether the inhibition of endothelial nitric oxide synthase could impair endothelial barrier function in preeclampsia. STUDY DESIGN:Messenger RNA and protein expression for endothelia...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2003.09.049
更新日期：2004-03-01 00:00:00
abstract：:Samples of cervical tissue were obtained from women immediately following term delivery from spontaneous labor or oral PGE2-induced labor and from a small nunber of nonpregnant women in the reproductive years undergoing hysterectomy for benign gynecologic disease. The measured strips were placed in a well-oxygenated b...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(76)90278-7
更新日期：1976-09-15 00:00:00
abstract：:The plasma fibronectin concentration was abnormally elevated (greater than 400 micrograms/ml) in 16 of 17 normotensive gravid women who subsequently developed preeclampsia. Of this group, 13 had elevated levels detectable greater than or equal to 4 weeks before the onset of hypertension. Our results indicate that plas...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(86)90748-9
更新日期：1986-05-01 00:00:00
abstract：:Several lines of evidence suggest a strong association between premenstrual syndrome and affective disorder. Similar psychological symptoms, behavioral manifestations, and biochemical etiologies have been reported. We attempted to evaluate the biologic interconnection between premenstrual syndrome and psychiatric diso...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(88)90590-x
更新日期：1988-12-01 00:00:00
abstract：:The first reported measurement of plasma renin and aldosterone in toxemia with an abdominal pregnancy is presented. In contrast to toxemia where plasma renin and aldosterone are either normal or low, extraordinarily high levels of both were found in this patient which returned to normal after delivery. The role of ext...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(75)90046-0
更新日期：1975-07-01 00:00:00
abstract：BACKGROUND:Maternal mortality ratios (MMR) appear to have increased in the United States over the last decade. Three potential contributing factors are (1) a shifting maternal age distribution, (2) changes in age-specific MMR, and (3) the addition of a checkbox indicating recent pregnancy on the death certificate. OBJ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2017.04.042
更新日期：2017-09-01 00:00:00
abstract：:The effect of maternal ingestion of ethanol (0.25 gm/kg) on fetal breathing movements, gross fetal body movements, and fetal heart rate was studied in 11 healthy pregnant women at 37 to 40 weeks' gestation. Fetal breathing movements were almost abolished within 30 minutes of the alcoholic drink and remained significan...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(83)90501-x
更新日期：1983-01-15 00:00:00
abstract：:Surgical experience with carcinomas of the uterus and rectum has provided new insights into the surgical anatomy of a lamina, which separates the paravesical space from the pararectal space. It has been proved that each of the lamina consists of the cardinal and lateral ligaments and pelvic splanchnic nerves, descendi...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90614-w
更新日期：1991-01-01 00:00:00
abstract：OBJECTIVE:Our purpose was to determine whether the combination of maternal serum alpha-fetoprotein, free human chorionic gonadotropin-beta, dimeric inhibin A, and maternal age detects aneuploidies other than Down syndrome. STUDY DESIGN:We retrieved stored serum from pregnancies complicated by aneuploidies other than D...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(98)70198-x
更新日期：1998-10-01 00:00:00
abstract：OBJECTIVE:Our purpose was to determine the adequacy of oxygenation, particularly cranial and cardiac oxygenation, in exteriorized fetal lambs on right atrium to artery extracorporeal membrane oxygenation. STUDY DESIGN:Thirteen fetal lambs were placed on right atrium to artery extracorporeal membrane oxygenation betwee...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(96)70423-4
更新日期：1996-02-01 00:00:00
abstract：OBJECTIVE:Our purpose was to evaluate the placental pathology in women with preeclampsia occurring at varying gestational ages. STUDY DESIGN:This was a secondary analysis of a prospective observational study of placentas from prespecified complicated pregnancies routinely submitted for standardized examination. For th...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2013.09.010
更新日期：2014-01-01 00:00:00
abstract：BACKGROUND:While there is an increasing trend of ovarian conservation at the time of surgical treatment for young women with stage I cervical cancer, the risk for subsequent ovarian cancer after ovarian conservation has not been well studied. OBJECTIVE:We sought to examine the incidence of and risk factors for metachr...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2017.06.019
更新日期：2017-11-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to assess the risk of neonatal death in the second twin. STUDY DESIGN:We carried out a retrospective cohort study of 128,219 live born second twins in the United States for the years 1995 through 1997. The study subjects were divided into 3 groups: second twins who were delivere...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2004.05.013
更新日期：2004-09-01 00:00:00
abstract：:In normal and diabetic pregnancies, the placenta functions as a complex endocrine gland that modulates all classes of maternal nutrients to the fetus. The metabolic alterations of normal pregnancy are diabetogenic and associated with modest resistance to endogenous insulin. Pregnant women with carbohydrate intolerance...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/0002-9378(83)90822-0
更新日期：1983-06-15 00:00:00
abstract：BACKGROUND:Although intertwin size difference is an important measure of fetal growth, the appropriate cut point to define discordance is unclear. Few studies have assessed intertwin differences in estimated fetal weight longitudinally or in relation to size differences at birth. OBJECTIVES:The objectives of the study...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2019.08.027
更新日期：2020-02-01 00:00:00
abstract：:Although genital condylomata worsen with pregnancy, we are unaware of any reports of fatal maternal laryngeal papillomatosis. A maternal death at 20 weeks' gestation of a patient with chronic laryngeal papillomatosis is described. Pregnant patients with a history of this disorder who have symptoms should be considered...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(92)91662-t
更新日期：1992-02-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to characterize the spinal distribution of afferent and efferent pathways that innervate the levator ani (LA) muscle in the female squirrel monkey. STUDY DESIGN:Cholera toxin B (CTB) was injected unilaterally into the LA muscle of 5 monkeys to identify primary sensory neurons in...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2004.10.607
更新日期：2005-05-01 00:00:00
abstract：:Analysis of uncultured chorionic villus material from a woman at risk of fetus with sulfite oxidase deficiency revealed a deficiency of sulfite oxidase. This was confirmed on termination of the pregnancy. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(90)90691-y
更新日期：1990-10-01 00:00:00
abstract：:Production of a biologically active prolactin by human decidual tissue and its influence on the permeability of amniochorion to water suggests a functional relationship between the polypeptide and fetal membrane metabolism. Under in vitro circumstances, we used ovine prolactin and the Ussing chamber technique to deter...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(85)90375-8
更新日期：1985-04-15 00:00:00
abstract：OBJECTIVE:Our purpose was to demonstrate reduced blood volume in preeclampsia compared with nonproteinuric gestational hypertension and normal pregnancy by use of independent measures of red blood cell and plasma volumes. STUDY DESIGN:Red blood cells labeled with a nonradioactive stable isotope of chromium and Evans' ...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/s0002-9378(98)70255-8
更新日期：1998-07-01 00:00:00
abstract：:Advances in perinatal care have resulted in a decline in mortality of very-low-birth-weight infants (< 1.5 kilograms) and also in an extension of the mortality period. To determine the current relevance of neonatal mortality results as indicators of outcome, all deaths among 427 very-low-birth-weight infants admitted ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(80)90888-1
更新日期：1980-08-01 00:00:00
abstract：:The regional distribution of cerebral blood flow was assessed in eight control and eight morphometrically growth-retarded fetal lambs to determine whether perfusion patterns within the cerebral circulation are altered in this model of intrauterine growth retardation. Growth retardation was induced by repetitive emboli...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(84)90460-5
更新日期：1984-12-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to examine the relationship between gestational age and outcomes of outborn versus inborn preterm infants. STUDY DESIGN:Multivariable logistic regression analysis was used to examine gestational age-specific, risk-adjusted outcomes of 2962 singleton infants who were born at <32 ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2003.139
更新日期：2003-03-01 00:00:00
abstract：:The Meigs syndrome is a rare but well known syndrome in which removal of the tumor results in cure. We report a case of a regressive Meigs syndrome after a definitive adnexal torsion which highlights the major role of the vascular phenomena in the physiopathology of this puzzling syndrome. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2011.04.017
更新日期：2011-10-01 00:00:00
abstract：OBJECTIVE:Carotenoids have antioxidant properties and have been associated with reduced risks of some cancers. We hypothesized that carotenoid intake may reduce the risk of diagnosed uterine leiomyoma (UL). STUDY DESIGN:We evaluated the associations between dietary carotenoids and risk of diagnosed UL in 82,512 premen...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2007.05.033
更新日期：2008-01-01 00:00:00
