Abstract：
OBJECTIVE:Our purpose was to test the effects of terbutaline on uterine electric and contractile responses to prostaglandin E2. STUDY DESIGN:In five late-gestation ewes, prostaglandin E2 (22.9 +/- 2.3 micrograms/min for 3 minutes) was given twice at 30-minute intervals during control. Terbutaline sulfate (2 micrograms/min) was then infused for 30 minutes. Prostaglandin E2 challenge was repeated 10 minutes after the onset of terbutaline infusion and thereafter at 30-minute intervals. Two-way analysis of variance for repeated measures revealed a significant main effect for time (p less than or equal to 0.0001) and between time and response (p less than or equal to 0.05). RESULTS:Both electric (p less than or equal to 0.0001) and intrauterine pressure (p less than or equal to 0.0001) responses were suppressed during terbutaline. The influence on intrauterine pressure persisted 10 minutes after terbutaline (p less than or equal to 0.01) while the electric response was not different from control. CONCLUSIONS:Terbutaline initially diminishes both uterine contractile and electric activity, but electric recovery precedes contractile recovery.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Reid DL,Davidson SR,Phernetton TM,Rankin JHdoi
10.1016/0002-9378(92)91864-7subject
Has Abstractpub_date
1992-01-01 00:00:00pages
231-5issue
1 Pt 1eissn
0002-9378issn
1097-6868pii
0002-9378(92)91864-7journal_volume
166pub_type
杂志文章abstract：OBJECTIVE:The objective of this study was to investigate the occurrence of in utero defecation as a normal function in the human fetus. STUDY DESIGN:The anuses of 240 fetuses were studied sonographically between weeks 15 and 41 of gestation. Fetal defecation was defined as the expulsion of rectal contents through the ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2003.107
更新日期：2003-01-01 00:00:00
abstract：:We report a case of a 25-year-old pregnant woman with gestational diabetes and increased activity (25-fold) of placental isozyme of alkaline phosphatase. Abdominal ultrasonographic scan revealed no hepatobiliary disease. After delivery, the alkaline phosphatase level decreased but did not return to the reference range...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(03)00904-9
更新日期：2004-02-01 00:00:00
abstract：:Multifetal gestation is associated with increased frequency of maternal complications and higher perinatal morbidity and mortality. The need for contemporary data on the outcome of multifetal gestations is further underscored when selective reduction is considered. The present study details the obstetric management, n...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(90)90407-x
更新日期：1990-02-01 00:00:00
abstract：BACKGROUND:It is not well-characterized whether attempting operative vaginal delivery is a safe and effective alternative among women who undergo a trial of labor after cesarean delivery who are unable to complete second-stage labor with a spontaneous vaginal delivery. OBJECTIVE:The purpose of this study was to compar...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2017.01.013
更新日期：2017-04-01 00:00:00
abstract：:The implications of an "inconclusive" acetylcholinesterase test (a faint but true band) in amniotic fluid were studied over a 2 1/2-year period in our laboratory. One thousand one hundred fifty-four amniotic fluid samples were tested for acetylcholinesterase and alpha-fetoprotein; the rate of an inconclusive acetylcho...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(88)80111-x
更新日期：1988-08-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to identify differences in antepartum uterine contraction frequency (UCF) in twin pregnancies with and without preterm labor (PTL). STUDY DESIGN:Twin gestations enrolled for outpatient surveillance with twice daily electronic uterine activity monitoring and telephonic nursing as...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2007.10.781
更新日期：2008-05-01 00:00:00
abstract：OBJECTIVE:Our purpose was to determine the characteristics of menopause among Mayan women who did not have menopausal symptoms. STUDY DESIGN:A cross-sectional study of Mayan women from Chichimila, Mexico, was performed. Demographic information, history and physical examination, hormone concentrations, and radial bone ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(93)90699-j
更新日期：1993-06-01 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
pub_type： 杂志文章
doi：10.1016/0002-9378(83)90807-4
更新日期：1983-07-01 00:00:00
abstract：:Brachial artery Doppler flow velocity waveforms were recorded from 10 nonpregnant women and 19 women with uncomplicated pregnancies. The pregnant group showed higher peak systolic frequencies (3.24 compared with 2.26, p = 0.01), higher maximum end-diastolic frequencies (0.62 compared with 0.25, p = 0.01), and lower pu...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90026-n
更新日期：1991-12-01 00:00:00
abstract：OBJECTIVE:The aim of the study was to determine the most cost-effective delivery management of vertex and nonvertex twin pair gestations. STUDY DESIGN:Two hundred sixty-six consecutive twin gestations were followed up prospectively in a special antepartum Twins Clinic directed by the Maternal-Fetal Medicine Division. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(98)70179-6
更新日期：1998-10-01 00:00:00
abstract：OBJECTIVE:Oxidative stress plays a causative role in diabetic embryopathy. We tested whether mitigating oxidative stress, using superoxide dismutase 1 (SOD1) transgenic (Tg) mice, would block hyperglycemia-induced specific protein kinase C (PKC) isoform activation and its downstream cascade. STUDY DESIGN:Day 8.5 embry...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2011.02.071
更新日期：2011-07-01 00:00:00
abstract：:Concentrations of immunoglobulins (Ig)A1, and IgA2, IgD, IgE, IgG, and IgM have been determined in cord blood, amniotic fluid, and maternal serum in a group of patients with a history of prematurely ruptured membranes (PRM) prior to the onset of labor and in a control group of patients undergoing normal delivery and w...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(76)90543-3
更新日期：1976-10-01 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
pub_type： 杂志文章
doi：10.1016/0002-9378(86)90594-6
更新日期：1986-03-01 00:00:00
abstract：OBJECTIVE:Pregnancy induces rapid, progressive, and substantial changes to the cardiovascular system. The low recurrence risk of preeclampsia, despite familial predisposition, suggests an adaptation associated with pregnancy that attenuates the risk for subsequent preeclampsia. We aimed to evaluate the persistent effec...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2015.01.005
更新日期：2015-05-01 00:00:00
abstract：OBJECTIVE:The aim of this study was to determine whether hysteroscopy improves the detection and extraction of endometrial polyps in postmenopausal women. This method was compared with curettage complemented by Randall polyp forceps. STUDY DESIGN:In a prospective study hysteroscopy was performed before and after curet...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2001.108332
更新日期：2001-01-01 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：OBJECTIVE:Our aim was to examine the effect of the nitric oxide donor isosorbide mononitrate on the uterine cervix at term and to evaluate possible adverse effects of this treatment. STUDY DESIGN:Term pregnant women were randomly selected to receive either 40 mg vaginally administered isosorbide mononitrate or placebo...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章,随机对照试验
doi：10.1016/s0002-9378(03)00865-2
更新日期：2003-12-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to determine whether fetal carriage of specific alleles of the polymorphic interleukin-1 receptor antagonist gene is associated with variations in intra-amniotic cytokine levels and previous pregnancy outcomes. STUDY DESIGN:Fetal cells in midtrimester amniotic fluid from 189 wom...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2004.05.071
更新日期：2004-10-01 00:00:00
abstract：:This document builds upon recommendations from peer organizations and outlines a process for identifying maternal cases that should be reviewed. Severe maternal morbidity is associated with a high rate of preventability, similar to that of maternal mortality. It also can be considered a near miss for maternal mortalit...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2016.07.050
更新日期：2016-09-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to demonstrate that daily 40-minute whole body exposure to an inhomogeneous static magnetic field (SMF) prolongs induced preterm birth (PTB) in mice. STUDY DESIGN:The murine model for PTB induction was performed by the administration of 25 μg/animal lipopolysaccharide (LPS) intr...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2011.05.012
更新日期：2011-10-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to test the hypothesis that maternal asthma symptoms and pulmonary function are related to adverse perinatal outcomes. STUDY DESIGN:Asthmatic patients were recruited from the 16 centers of the Maternal Fetal Medicine Units. Forced expiratory volume in 1 second was obtained at en...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,多中心研究
doi：10.1016/j.ajog.2005.06.028
更新日期：2006-01-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to assess whether endometrial polyps (EMPs) represent cancer precursors. STUDY DESIGN:Age standardized incidence ratios (SIRs) of histologically verified endometrial cancers (EmCas) were estimated in women with EMPs and in women with uterine leiomyomata, which is a condition tha...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2010.03.036
更新日期：2010-09-01 00:00:00
abstract：OBJECTIVE:Review alternative approaches to oral metronidazole for the treatment of bacterial vaginosis. STUDY DESIGN:Assessment of clinical trials on the treatment of bacterial vaginosis with regimens other than 5 to 7 days of metronidazole. RESULTS:Single-dose metronidazole, 2 gm orally, is as effective as 5- to 7-d...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/0002-9378(93)90346-k
更新日期：1993-08-01 00:00:00
abstract：:The purpose of this study was to determine the effect of labor and chorioamnionitis in interleukin-1 production by human placenta. We studied the activity of the placenta to produce interleukin-1 with an enzyme immunoassay by culturing tissue blocks. The placental tissue obtained after labor produced a larger amount o...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90241-i
更新日期：1991-07-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to investigate the long-term impact of anal sphincter laceration on anal incontinence. STUDY DESIGN:Five to 10 years after first delivery, anal incontinence and other bowel symptoms were measured with the Epidemiology of Prolapse and Incontinence Questionnaire and the short form...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2012.06.055
更新日期：2012-11-01 00:00:00
abstract：OBJECTIVE:The objective of the study was to determine whether transversus abdominis plane (TAP) block reduces postoperative pain when compared with trocar site infiltration of bupivacaine in gynecological laparoscopy. STUDY DESIGN:This was a prospective, randomized, double-blinded clinical trial using patients as thei...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,随机对照试验
doi：10.1016/j.ajog.2014.07.049
更新日期：2015-02-01 00:00:00
abstract：:To assess uterine activity before labor in patients delivering preterm, at term, and postterm, the maximum spontaneous contraction frequency per 10-minute window during the initial portion of antepartum fetal heart rate monitoring was analyzed. Patients with multiple gestation, third trimester bleeding, polyhydramnios...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(88)90353-5
更新日期：1988-06-01 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
pub_type： 杂志文章
doi：10.1016/j.ajog.2007.11.024
更新日期：2008-05-01 00:00:00
abstract：OBJECTIVE:In 2005, 4 Clostridium sordellii-associated toxic shock fatalities were reported in young Californian women after medical abortions. The true incidence of this rare disease is unknown, and a population-based study has never been performed. Additional clostridia-associated deaths were sought to describe associ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2009.05.023
更新日期：2009-11-01 00:00:00
abstract：BACKGROUND:Chlamydia trachomatis infection is common and largely asymptomatic in women. If untreated, it can lead to sequelae such as pelvic inflammatory disease and infertility. It is unknown whether a patient's self-reported history of Chlamydia trachomatis infection is a valid marker of past infection. OBJECTIVE:Ou...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2016.12.005
更新日期：2017-04-01 00:00:00
