Modern management of the breech delivery.

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

authors： Wang Y,Gu Y,Zhang Y,Lewis DF

更新日期：2004-03-01 00:00:00

abstract：OBJECTIVE:We tested the hypothesis that oxytocin (OT) contracts blood vessels via vasopressin V1A (VP) receptors, and that this depends on pregnancy. STUDY DESIGN:Concentration-contraction relationships (CCR) to OT and VP (10(-12)-10(-6) mol/L) were obtained in different blood vessels. CCR were obtained in uterine art...

journal_title：American journal of obstetrics and gynecology

authors： Vedernikov YP,Betancourt A,Wentz MJ,Saade GR,Garfield RE

更新日期：2006-01-01 00:00:00

abstract：:The chronic and relatively acute changes in blood volume that occur during pregnancy and post partum may be associated with alterations in the content of atrial natriuretic factor in the atria. We measured the concentration of atrial natriuretic factor in the right and left atria of virgin, pregnant, and postpartum Sp...

journal_title：American journal of obstetrics and gynecology

authors： Castro LC,Arora CP,Davis JL,Hobel CJ,Parvez H

更新日期：1989-12-01 00:00:00

abstract：:Intravenous hydralazine was administered to 16 spontaneously hypertensive rats on day 21 of gestation. The radioactive labeled microsphere technique was used to assess the change in organ perfusion produced by the drug. Vascular resistance to most organs was decreased, except to the placentas, stomach, and cecum, wher...

journal_title：American journal of obstetrics and gynecology

authors： Lipshitz J,Ahokas RA,Reynolds SL

更新日期：1987-02-01 00:00:00

abstract：:Peritoneal fluid obtained at laparoscopy from 49 women was measured for its content of prostaglandin E2 (PGE2), prostaglandin F2 alpha (PGF2 alpha), 6-keto-prostaglandin F1 alpha (6-KF), and thromboxane B2 (TxB2) by specific radioimmunoassays. In normal women (n = 10), the concentrations of prostaglandins in peritonea...

journal_title：American journal of obstetrics and gynecology

authors： Dawood MY,Khan-Dawood FS,Wilson L Jr

更新日期：1984-02-15 00:00:00

abstract：OBJECTIVE:This study was undertaken to evaluate the presence or absence of neurotrophins and their respective receptors within adult human preovulatory follicles. STUDY DESIGN:Prospective study of neurotrophins and their receptors in follicular cells and unfertilized oocytes from women undergoing aspiration for in vit...

journal_title：American journal of obstetrics and gynecology

authors： Seifer DB,Feng B,Shelden RM

更新日期：2006-04-01 00:00:00

abstract：OBJECTIVE:We assessed intraobserver and interobserver variations in the performance of the amniotic fluid index. STUDY DESIGN:A total of 34 women in the third trimester with intact membranes were examined twice by each of three examiners. The amniotic fluid index was measured once by each of the three examiners in ord...

journal_title：American journal of obstetrics and gynecology

authors： Bruner JP,Reed GW,Sarno AP Jr,Harrington RA,Goodman MA

更新日期：1993-04-01 00:00:00

abstract：OBJECTIVE:The objective of this study was to test the hypothesis that cocaine alters placental prostaglandin production in vitro. STUDY DESIGN:Placentas were obtained from healthy women (n = 6) after normal vaginal delivery at term. Placental explants (300 mg) were incubated in duplicate at 37 degrees C in the presenc...

journal_title：American journal of obstetrics and gynecology

authors： Monga M,Chmielowiec S,Andres RL,Troyer LR,Parisi VM

更新日期：1994-10-01 00:00:00

abstract：OBJECTIVE:Our purpose was to describe subsequent pregnancy outcome and long-term maternal prognosis in women with HELLP syndrome (hemolysis, elevated liver enzymes, and low platelets) during the index pregnancy. STUDY DESIGN:This is a descriptive and analytic study of women with HELLP syndrome admitted to E.H. Crump W...

journal_title：American journal of obstetrics and gynecology

authors： Sibai BM,Ramadan MK,Chari RS,Friedman SA

更新日期：1995-01-01 00:00:00

abstract：:Prostaglandin E2 is a powerful oxytocic agent that reliably initiates labor, even in the presence of an unripe cervix. The low incidence of fetomaternal complication contributes to its universal use. We report a rare case of uterine rupture after intracervical application of prostaglandin E2 gel. Thus far no prostagla...

journal_title：American journal of obstetrics and gynecology

authors： Maymon R,Shulman A,Pomeranz M,Holtzinger M,Haimovich L,Bahary C

更新日期：1991-08-01 00:00:00

abstract：:Bacteriologic culture samples were taken from the cervix in three groups of 10 healthy, sexually active women using barrier contraception, oral contraceptives, or a levonorgestrel-releasing intrauterine contraceptive device. Culture samples for Candida albicans and Trichomonas vaginalis were taken, a cytologic vaginal...

journal_title：American journal of obstetrics and gynecology

authors： Haukkamaa M,Stranden P,Jousimies-Somer H,Siitonen A

更新日期：1986-03-01 00:00:00

abstract：BACKGROUND:Noninvasive imaging autopsy alternatives for fetuses weighing <500 grams are limited. Microfocus computed tomography has been reported as a viable option in small case series with the potential to avoid an invasive autopsy. Implementation of postmortem microfocus computed tomography in a large cohort as part...

journal_title：American journal of obstetrics and gynecology

authors： Shelmerdine SC,Simcock IC,Hutchinson JC,Guy A,Ashworth MT,Sebire NJ,Arthurs OJ

更新日期：2021-01-01 00:00:00

abstract：:Reproductive coercion involves behavior that interferes with contraceptive and pregnancy choices of women and occasionally men. This includes birth control sabotage (intentional destruction of a woman's chosen method of contraception), pregnancy pressure (behaviors to coerce pregnancy against one's wishes), and pregna...

journal_title：American journal of obstetrics and gynecology

authors： Park J,Nordstrom SK,Weber KM,Irwin T

更新日期：2016-01-01 00:00:00

abstract：OBJECTIVE:The aim of this study was to determine, with the use of a rat model, the expression of tumor necrosis factor (TNF)-alpha, its receptors, and TNF-alpha-converting enzyme in perinatal brain lesions of early premature neonates. STUDY DESIGN:Lipopolysaccharide (LPS) was injected intraperitoneally in pregnant rat...

journal_title：American journal of obstetrics and gynecology

authors： Roy M,Girard S,Larouche A,Kadhim H,Sébire G

更新日期：2009-11-01 00:00:00

abstract：:Respiratory sinus arrhythmia is a pattern of rhythmic variation in the heart rate that occurs at the frequency of respiration and is mediated principally by the vagus nerve. Spectral analysis can decompose the variance of a series of sequential measures into constituent frequencies to measure and verify whether there ...

journal_title：American journal of obstetrics and gynecology

authors： Donchin Y,Caton D,Porges SW

更新日期：1984-04-15 00:00:00

abstract：OBJECTIVE:The objective of this study was to determine whether indomethacin is associated with an increased incidence of constriction of the human fetal ductus arteriosus with advancing gestational age. STUDY DESIGN:A retrospective analysis of fetal echocardiograms performed in 44 patients with premature labor or hydr...

journal_title：American journal of obstetrics and gynecology

authors： Moise KJ Jr

更新日期：1993-05-01 00:00:00

abstract：:We report a case of sigmoid perforation, peritonitis, and adult respiratory distress syndrome after a loop excision procedure for carcinoma in situ of the cervix and dysplasia of the vagina. Treatment of vaginal dysplasia with loop excision is potentially dangerous. Safer methods of management include carbon dioxide l...

journal_title：American journal of obstetrics and gynecology

authors： Powell JL,Asbery DS

更新日期：2000-03-01 00:00:00

abstract：OBJECTIVE:Our purpose was to measure the transfer of lamivudine ([-]-2'-deoxy-3'-thiacytidine) across the human placenta both alone and in the presence of zidovudine. STUDY DESIGN:Nine placentas from term, elective cesarean deliveries were analyzed with use of the ex vivo single cotyledon perfusion system. Antipyrine ...

journal_title：American journal of obstetrics and gynecology

authors： Bloom SL,Dias KM,Bawdon RE,Gilstrap LC 3rd

更新日期：1997-02-01 00:00:00

abstract：:Fifty-one patients with granulosa-cell tumors and nine patients with Sertoli-Leydig-cell tumors have been treated at the M. D. Anderson Hospital. The most important prognostic finding was the stage of the tumor when first seen. Conservative surgery was utilized in young patients with lesions confined to one ovary. Mor...

journal_title：American journal of obstetrics and gynecology

authors： Schwartz PE,Smith JP

更新日期：1976-06-01 00:00:00

abstract：:We evaluated the relation between age at menopause and the risk of nonfatal myocardial infarction (MI) among 121,964 nurses who responded to a mail questionnaire. Of 279 women who reported having been hospitalized for MI, 123 (44%) were postmenopausal (i.e., no longer menstruating) at the time of hospitalization, comp...

journal_title：American journal of obstetrics and gynecology

authors： Rosenberg L,Hennekens CH,Rosner B,Belanger C,Rothman KJ,Speizer FE

更新日期：1981-01-01 00:00:00

abstract：:Based upon the experience gained in the evaluation of 60 patients with abnormal polytomography and/or elevated prolactin levels, the following observations can be made: Patients with amenorrhea, amenorrhea and galactorrhea, galactorrhea alone, or anovulatory cycles and infertility may or may not have pituitary tumors....

journal_title：American journal of obstetrics and gynecology

authors： Speroff L,Levin RM,Haning RV Jr,Kase NG

更新日期：1979-12-01 00:00:00

abstract：:Luteal phase deficiency is thought to be a cause of female infertility. Nevertheless, little agreement exists concerning either its diagnosis or its treatment. To address the latter question, we reviewed the English literature and examined the effect of treatment on pregnancy rates. One randomized controlled trial fou...

journal_title：American journal of obstetrics and gynecology

authors： Karamardian LM,Grimes DA

更新日期：1992-11-01 00:00:00

abstract：:Although previous studies have suggested that the breech infant weighing less than 1,500 gm benefits from cesarean section, the published results have not demonstrated statistically significant differences. We have evaluated pediatric outcome data for 240 breech infants and 525 vertex infants who weighed less than 1,5...

journal_title：American journal of obstetrics and gynecology

authors： Main DM,Main EK,Maurer MM

更新日期：1983-07-01 00:00:00

abstract：:Spontaneous contractions of circular and longitudal muscle of the ampulla and isthmus of human and rabbit Fallopian tubes were recorded isometrically. Addition of K+ to tissue in K+-free medium always caused immediate inhibition of spontaneous contractility. K+-induced inhibition was prevented by ouabain and reversed ...

journal_title：American journal of obstetrics and gynecology

authors： Johns A,Molnar S,Paton DM

更新日期：1976-03-01 00:00:00

abstract：BACKGROUND:Alterations in circulating angiogenic factors are associated with the diagnosis of preeclampsia and correlate with adverse perinatal outcomes during the third trimester. OBJECTIVE:Analysis of the sequential levels of plasma angiogenic factors among patients admitted for evaluation of preeclampsia. STUDY DE...

journal_title：American journal of obstetrics and gynecology

authors： Baltajian K,Bajracharya S,Salahuddin S,Berg AH,Geahchan C,Wenger JB,Thadhani R,Karumanchi SA,Rana S

更新日期：2016-07-01 00:00:00

abstract：:We have previously demonstrated in pregnant sheep that ritodrine infusion for 24 hours reduces myometrial beta-adrenergic receptor density and isoproterenol-stimulated adenylate cyclase activity. These receptor-associated changes were accompanied by an increasing inability of ritodrine to inhibit uterine contractility...

journal_title：American journal of obstetrics and gynecology

authors： Ward SM,Caritis SN,Chiao JP,Moore JJ

更新日期：1988-12-01 00:00:00

abstract：OBJECTIVE:The aim of this study was to show and discuss an association between fetal inflammatory response syndrome (FIRS) and an adverse neonatal outcome defined as combined severe neonatal morbidity and mortality in preterm neonates hospitalized in our neonatal intensive care unit. STUDY DESIGN:This was an observati...

journal_title：American journal of obstetrics and gynecology

authors： Hofer N,Kothari R,Morris N,Müller W,Resch B

更新日期：2013-12-01 00:00:00

abstract：BACKGROUND:Oxytocin is a potent uterotonic agent that is widely used for induction and augmentation of labor. Oxytocin has a narrow therapeutic index and the optimal dosing for any individual woman varies widely. OBJECTIVE:The objective of this study was to determine whether genetic variation in the oxytocin receptor ...

journal_title：American journal of obstetrics and gynecology

authors： Grotegut CA,Ngan E,Garrett ME,Miranda ML,Ashley-Koch AE,Swamy GK

更新日期：2017-09-01 00:00:00

abstract：:Fetal echocardiography as a tool for the prenatal diagnosis of cardiac structural abnormalities was utilized in 27 consecutive patients who were referred for evaluation. Four abnormalities were recognized prenatally and confirmed postnatally. A fifth was identified postnatally. The sensitivity and specificity of this ...

journal_title：American journal of obstetrics and gynecology

authors： Nimrod C,Nicholson S,Machin G,Harder J

更新日期：1984-03-01 00:00:00

abstract：:A tentative classification of obstetrical and gynecological devices, proposed by the Panel on Review of Obstetrical and Gynecological Devices of the Bureau of Medical Devices and Diagnostic Products of the Food and Drug Administration, is presented. The devices are classified, for regulatory purposes, under 3 genera...

journal_title：American journal of obstetrics and gynecology

authors： Thompson HE,Borders JP,Dickey RP,Freilich TH,Friedman EA,Kerr CH,Sikov MR

更新日期：1976-03-15 00:00:00