Structural aspects of human cervical mucus.

abstract：BACKGROUND:Readmission rates are used as a quality metric in medical and surgical specialties; however, little is known about obstetrics readmissions. OBJECTIVE:Our goals for this study were to describe the trends in postpartum readmissions over time; to characterize the common indications and associated diagnoses for...

journal_title：American journal of obstetrics and gynecology

authors： Clapp MA,Little SE,Zheng J,Robinson JN

更新日期：2016-07-01 00:00:00

abstract：OBJECTIVE:The purpose of this study was to provide a viable alternative to routine postpartum hematocrit measurement, by a determination of the clinical risk factors that identify patients with anemia and an examination of the resulting cost savings. STUDY DESIGN:In this retrospective review, cases (postpartum hematoc...

journal_title：American journal of obstetrics and gynecology

authors： Petersen LA,Lindner DS,Kleiber CM,Zimmerman MB,Hinton AT,Yankowitz J

更新日期：2002-04-01 00:00:00

abstract：OBJECTIVE:To test the hypothesis that amniotic fluid volume is increased in aquaporin 1 knockout mice. STUDY DESIGN:Transgenic mice deficient in aquaporin 1 protein were generated by targeted gene disruption, as described previously. After a cesarean section was performed, intact, individual gestational sacs were remo...

journal_title：American journal of obstetrics and gynecology

authors： Mann SE,Ricke EA,Torres EA,Taylor RN

更新日期：2005-06-01 00:00:00

abstract：OBJECTIVE:The objective of the study was to determine in the rat model whether the uterotonic action of vasopressin is mediated by the vasopressin V1a receptor in the uterus, by the oxytocin receptor, or by both. The purpose is to assess whether the anti-V1a activity of oxytocin antagonists is a desirable pharmacologic...

journal_title：American journal of obstetrics and gynecology

authors： Chan WY,Wo NC,Manning M

更新日期：1996-11-01 00:00:00

abstract：OBJECTIVE:Prostaglandins reduce cervical resistance by reorganizing collagen fibrils. Proteoglycans are involved in collagen fibril organization and structure. We evaluated the changes in proteoglycan composition induced by prostaglandin E(2) (PGE(2)). STUDY DESIGN:Prostaglandins were administered intravaginally to in...

journal_title：American journal of obstetrics and gynecology

authors： Ji H,Dailey TL,Long V,Chien EK

更新日期：2008-05-01 00:00:00

abstract：:Abnormal uterine bleeding is often the presenting complaint in women with underlying coagulopathies. A clear understanding of the pathophysiology of common bleeding disorders will help the practicing obstetrician/gynecologist in the diagnosis and treatment of these conditions. The normal hemostatic process can be divi...

journal_title：American journal of obstetrics and gynecology

authors： Ewenstein BM

更新日期：1996-09-01 00:00:00

abstract：:Previously endovaginal ultrasonography was considered an adjunct for use in full-service ultrasound facilities by subspecialists only. The technique, however, has tremendous application for use by the clinician in the examination room for patients at bimanual examination. This is because the procedure is meant to be p...

journal_title：American journal of obstetrics and gynecology

authors： Goldstein SR

更新日期：1990-03-01 00:00:00

abstract：:A total of 1,996 direct fetal heart rate (FHR) tracings in labor were analyzed using the first and last 30 minutes of monitoring in order to evaluate individual FHR characteristics as to their ability to predict the fetal status. Comparisons were made between individual FHR characteristics occurring alone ("uncomplica...

journal_title：American journal of obstetrics and gynecology

authors： Krebs HB,Petres RE,Dunn LJ,Jordaan HV,Segreti A

更新日期：1979-04-01 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

authors： Tyson JE,McCoshen JA,Dubin NH

更新日期：1985-04-15 00:00:00

abstract：OBJECTIVE:The purpose of this study was to evaluate the effect of preterm premature rupture of the membranes on the frequency of respiratory distress syndrome among singleton pregnancies that are complicated with preterm delivery. STUDY DESIGN:We performed a retrospective analysis of singleton pregnancies that were de...

journal_title：American journal of obstetrics and gynecology

authors： Sims EJ,Vermillion ST,Soper DE

更新日期：2002-08-01 00:00:00

abstract：:Sixty percent of neonates with Down syndrome have hypoplasia of the middle phalanx of the fifth digit. We demonstrate this finding sonographically between 17 and 20 weeks' gestation in four of five fetuses with Down syndrome. The appearance of this abnormal phalanx as well as the abnormal curvature of the fifth digit ...

journal_title：American journal of obstetrics and gynecology

authors： Benacerraf BR,Osathanondh R,Frigoletto FD

更新日期：1988-07-01 00:00:00

abstract：:The practice of gynecological surgery is being reshaped by commercial interests that are promoting the use of trochar-and-mesh surgical kits for the treatment of stress incontinence and pelvic organ prolapse. In this article, we review the recent history of these surgical innovations and discuss the implications of ch...

journal_title：American journal of obstetrics and gynecology

authors： Wall LL,Brown D

更新日期：2010-01-01 00:00:00

abstract：OBJECTIVES:Endotoxin, interleukin-1 beta, interleukin-6, and tumor necrosis factor-alpha have been implicated in the pathogenesis of preterm labor, but their acute effect on myometrial contractile activity is unknown. The objective of this study was to determine their effect on isolated pregnant murine myometrial contr...

journal_title：American journal of obstetrics and gynecology

authors： Oshiro BT,Monga M,Eriksen NL,Graham JM,Weisbrodt NW,Blanco JD

更新日期：1993-12-01 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

authors： Hiersch L,Shah PS,Khurshid F,Masse E,Murphy K,McDonald SD,Carson G,Barrett J,Melamed N,Canadian Neonatal Network Investigators and the Canadian Preterm Birth Network Investigators.

更新日期：2020-12-09 00:00:00

abstract：:The pulsatile release of gonadotropin-releasing hormone and the consequent secretion of gonadotropins are regulated by a complex interplay of steroids, neuropeptides, catecholamines, and environmental factors. Estrogen and progesterone influence the amplitude and frequency of luteinizing hormone pulsatile secretion. T...

journal_title：American journal of obstetrics and gynecology

authors： Jaffe RB,Plosker S,Marshall L,Martin MC

更新日期：1990-11-01 00:00:00

abstract：OBJECTIVE:This study was conducted to evaluate use of light-induced autofluorescence for measuring changes in collagen of cervical connective tissue during gestation. STUDY DESIGN:In a conventional laboratory setting light-induced autofluorescence from the cervix of Charles-Dawley timed pregnant rats was measured in v...

journal_title：American journal of obstetrics and gynecology

authors： Glassman W,Byam-Smith M,Garfield RE

更新日期：1995-11-01 00:00:00

abstract：:This report summarizes the cumulative experience of 3313 pregnancies represented in 59 prospective clinical trials in which intracervical or intravaginal prostaglandin E2 gel was used for cervical ripening before induction of labor. Results indicate that local prostaglandin E2 is superior to placebo or no therapy in e...

journal_title：American journal of obstetrics and gynecology

authors： Rayburn WF

更新日期：1989-03-01 00:00:00

abstract：:This study was undertaken to evaluate the catecholamine response of the fetal rat to insulin-induced hypoglycemia in the mother. Twenty-four Sprague-Dawley rats at day 21 of gestation were used. Hypoglycemia was induced with regular insulin; then at timed intervals, the rats were anesthetized with pentobarbital. When ...

journal_title：American journal of obstetrics and gynecology

authors： Phillippe M,Kitzmiller JL

更新日期：1981-02-15 00:00:00

abstract：:Chronic intrauterine hypoxia was induced in third-trimester lamb fetuses by daily embolization of the maternal side of the placenta with nonradioactive microspheres. After delivery at term, the chronically hypoxic fetuses had significantly increased pulmonary artery pressures when compared to nonhypoxic control measur...

journal_title：American journal of obstetrics and gynecology

authors： Drummond WH,Bissonnette JM

更新日期：1978-08-01 00:00:00

abstract：OBJECTIVE:We measured the concentrations of plasma P selectin (or GMP-140) and glycocalicin in preeclamptic and eclamptic women. Correlations between these two parameters and blood pressures, platelet counts, or plasma thrombin-antithrombin complex values were evaluated. STUDY DESIGN:By use of enzyme-linked immunosorb...

journal_title：American journal of obstetrics and gynecology

authors： Halim A,Kanayama N,el Maradny E,Nakashima A,Bhuiyan AB,Khatun S,Terao T

更新日期：1996-01-01 00:00:00

abstract：OBJECTIVE:This study investigates the occurrence of miscarriages over the reproductive life span of women in a population-based study. STUDY DESIGN:A questionnaire was sent in 1994 to a random sample of 3000 Finnish women aged 18 to 44 years (73% response rate). Age-adjusted percentages of women having had miscarriage...

journal_title：American journal of obstetrics and gynecology

authors： Hemminki E,Forssas E

更新日期：1999-08-01 00:00:00

abstract：:In the conservative management of premature rupture of the membranes, most patients have oligohydramnios caused by continuous leakage of amniotic fluid. To avoid unfavorable effects of oligohydramnios on fetal development and well-being, we infused physiologic saline solution continuously into the amniotic cavity at a...

journal_title：American journal of obstetrics and gynecology

authors： Imanaka M,Ogita S,Sugawa T

更新日期：1989-07-01 00:00:00

abstract：:Fifty-five ewes with chronically catheterized singleton gestations were studied to assess changes in basal concentrations of fetal catecholamines with increasing gestational age. All pregnancies were time dated, and measurements of catecholamines were conducted at least 5 days after placement of fetal catheters when f...

journal_title：American journal of obstetrics and gynecology

authors： Palmer SM,Oakes GK,Lam RW,Oddie TH,Hobel CJ,Fisher DA

更新日期：1984-06-15 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

authors： Cohen GR,O'Brien WF,Lewis L,Knuppel RA

更新日期：1987-11-01 00:00:00

abstract：OBJECTIVE:Cerebral palsy (CP) is characterized by motor deficits. There is increasing evidence that CP may result from inflammatory and infection-mediated white matter damage. Our objective was to develop an inflammatory model for CP based on chronic lipopolysaccharide (LPS) exposure with a recognizable phenotype in of...

journal_title：American journal of obstetrics and gynecology

authors： Toso L,Poggi S,Park J,Einat H,Roberson R,Dunlap V,Woodard J,Abebe D,Spong CY

更新日期：2005-09-01 00:00:00

abstract：:Charts from 482 singleton pregnancies undergoing cerclage placement in patients over a 6-year period were reviewed. Cervical dilatation at time of surgery, number of previous spontaneous losses, and gestational age at placement were key determinants of outcome. The most frequent complication, premature rupture of the ...

journal_title：American journal of obstetrics and gynecology

authors： Treadwell MC,Bronsteen RA,Bottoms SF

更新日期：1991-09-01 00:00:00

abstract：:Plasma thyroid hormone and cortisol concentrations were measured from early third trimester to delivery in seven pregnant ewes and their fetuses. A surge in fetal plasma triiodothyronine was found during the six days prior to delivery, the mean values rising from less than 30 to 125 ng. per deciliter. During this peri...

journal_title：American journal of obstetrics and gynecology

authors： Nwosu UC,Kaplan MM,Utiger RD,Delivoria-Papadopulos M

更新日期：1978-11-01 00:00:00

abstract：OBJECTIVE:The purpose of this report is to bring to the attention of obstetric care providers the occurrence in pregnancy of a threatening pulmonary syndrome caused by hantavirus infection. STUDY DESIGN:Two recent cases of hantavirus pneumonitis in pregnancy, one complicated by adult respiratory distress syndrome, are...

journal_title：American journal of obstetrics and gynecology

authors： Gilson GJ,Maciulla JA,Nevils BG,Izquierdo LE,Chatterjee MS,Curet LB

更新日期：1994-08-01 00:00:00

abstract：OBJECTIVE:The purpose of this study was to develop a model for preeclampsia based on maternal demographic characteristics and medical history. STUDY DESIGN:This was a screening study of 120,492 singleton pregnancies at 11-13 weeks' gestation, including 2704 pregnancies (2.2%) that experienced preeclampsia. A survival-...

journal_title：American journal of obstetrics and gynecology

authors： Wright D,Syngelaki A,Akolekar R,Poon LC,Nicolaides KH

更新日期：2015-07-01 00:00:00

abstract：:To test the hypothesis that intrauterine insemination with washed spermatozoa induces antisperm antibody formation, we measured serum antisperm antibody levels by the Immunobead technique in a population of women receiving exogenous gonadotropins. Antibody levels were measured before therapy (baseline) and then serial...

journal_title：American journal of obstetrics and gynecology

authors： Horvath PM,Beck M,Bohrer MK,Shelden RM,Kemmann E

更新日期：1989-03-01 00:00:00