当前位置： SCI文献检索 > AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY期刊下所有文献 > Maternal oxygen transport variables during the third trimester of normal pregnancy.

Maternal oxygen transport variables during the third trimester of normal pregnancy.

Abstract：

OBJECTIVE:The aim of this study was to measure and calculate oxygen transport variables in uncomplicated term pregnancies. STUDY DESIGN:Ten normotensive primiparous women between 36 and 38 weeks' gestation underwent pulmonary and radial arterial catheterization as part of a larger study. Seven women had studies repeated at approximately 12 weeks post partum. Measurements were made with patients in the left lateral recumbent position after a 30-minute stabilization period. Cardiac output was measured with the thermodilution technique. Blood samples were obtained simultaneously from the pulmonary and radial arteries and analyzed in duplicate for oxygen content with a blood gas analyzer. RESULTS:The oxygen contents of both arterial and mixed venous blood are significantly lower (P <.05) in the third trimester of pregnancy (15.96 and 11.97 mL/dL, respectively) than in the postpartum period (18.00 and 13.54 mL/dL). The fall in oxygen content during pregnancy prevents any significant increase in oxygen delivery in the third trimester (867. 59 mL/min) relative to the postpartum period (806.50 mL/min, P not significant). CONCLUSION:This is the first report of directly measured oxygen transport variables in healthy pregnant women.

journal_name

Am J Obstet Gynecol

journal_title

American journal of obstetrics and gynecology

authors

Hankins GD,Clark SL,Uckan E,Van Hook JW

doi

10.1016/s0002-9378(99)70223-1

subject

Has Abstract

pub_date

1999-02-01 00:00:00

pages

406-9

issue

2 Pt 1

eissn

0002-9378

issn

1097-6868

pii

S0002-9378(99)70223-1

journal_volume

180

pub_type

杂志文章

相关文献

AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY文献大全
  • Changes in uterine blood flow during human pregnancy.

    abstract：:A transvaginal duplex Doppler ultrasonography system was used to measure blood flow characteristics in the ascending uterine artery before and during pregnancy. The system uses a 5 MHz Doppler transducer coupled to a 6.5 MHz imaging probe. There was a steady increase in volume flow rate in the left ascending uterine a...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/0002-9378(90)90834-t

    authors： Thaler I,Manor D,Itskovitz J,Rottem S,Levit N,Timor-Tritsch I,Brandes JM

    更新日期：1990-01-01 00:00:00

  • Levator hiatus dimensions in late pregnancy and the process of labor: a 3- and 4-dimensional transperineal ultrasound study.

    abstract：OBJECTIVE:The objectives of the investigation were to study the association between levator hiatus dimensions in late pregnancy and both the length of second stage of labor and also the delivery mode in women delivering their first child. STUDY DESIGN:In this cohort study, 231 nulliparous women were examined with 3- a...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/j.ajog.2014.02.021

    authors： Siafarikas F,Stær-Jensen J,Hilde G,Bø K,Ellström Engh M

    更新日期：2014-05-01 00:00:00

  • Outcome of corticotropin stimulation testing in women with androgen excess and ovulatory dysfunction.

    abstract：OBJECTIVE:Our objective was to evaluate women with clinical signs or chemical evidence of androgen excess by corticotropin stimulation testing. STUDY DESIGN:Seventy-six women with evidence of androgen excess were evaluated by corticotropin stimulation testing. Results were examined by plasma levels of dehydroepiandros...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/s0002-9378(11)91406-9

    authors： Bates GW,French GM,Humphries BB,Blackhurst DW

    更新日期：1992-08-01 00:00:00

  • Analysis of circulating annexin A5 parameters during pregnancy: absence of differences between women with recurrent spontaneous pregnancy losses and controls.

    abstract：OBJECTIVE:We investigated whether levels of annexin A5 (AnxA5), AnxA5 anticoagulant activity and binding, and anti-AnxA5 antibodies might be altered in women with previous histories of recurrent spontaneous pregnancy losses (RSPL) when tested during pregnancy. STUDY DESIGN:Ninety pregnant women with histories of 3 or ...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/j.ajog.2006.02.034

    authors： Wu XX,Arslan AA,Wein R,Reutelingsperger CP,Lockwood CJ,Kuczynski E,Rand JH

    更新日期：2006-10-01 00:00:00

  • Eclampsia. VI. Maternal-perinatal outcome in 254 consecutive cases.

    abstract：:During a 12-year period, 254 cases of eclampsia were managed at this center. Eighty patients (32%) did not have edema, 58 (23%) had "relative hypertension," and 49 (19%) did not have proteinuria at the time of convulsions. Eclampsia developed at less than or equal to 20 weeks in 6 patients and beyond 48 hours post par...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/0002-9378(90)91123-t

    authors： Sibai BM

    更新日期：1990-09-01 00:00:00

  • Adaptation to pregnancy leads to attenuated rat uterine artery smooth muscle sensitivity to oxytocin.

    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

    pub_type： 杂志文章

    doi：10.1016/j.ajog.2005.05.006

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

    更新日期：2006-01-01 00:00:00

  • Immunoreactive endorphin peptides and prolactin in umbilical vein and maternal blood.

    abstract：:Immunoreactive endorphin peptides (ir EP) and prolactin (PRL) were measured by radioimmunoassay in venous blood from the umbilical cord of 86 neonates, 23 postpartum mothers, and 40 randomly selected blood bank donor control subjects. We also assayed these hormones in serosanguineous placental tissue fluid following d...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/0002-9378(81)90103-4

    authors： Kimball CD,Chang CM,Huang SM,Houck JC

    更新日期：1981-05-15 00:00:00

  • Defining normal and abnormal fetal growth: promises and challenges.

    abstract：:Normal fetal growth is a critical component of a healthy pregnancy and influences the long-term health of the offspring. However, defining normal and abnormal fetal growth has been a long-standing challenge in clinical practice and research. We review various references and standards that are used widely to evaluate f...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章,评审

    doi：10.1016/j.ajog.2009.10.889

    authors： Zhang J,Merialdi M,Platt LD,Kramer MS

    更新日期：2010-06-01 00:00:00

  • Medication effects on midtrimester maternal serum screening.

    abstract：OBJECTIVE:To determine whether medication classes are associated with alterations in concentrations of Quad screen analytes or the screen-positive rate. STUDY DESIGN:We conducted a retrospective cohort study of women with singleton gestations who received prenatal care and had a Quad screen performed in the University...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/j.ajog.2009.07.013

    authors： Pekarek DM,Chapman VR,Neely CL,Ramsey PS,Biggio JR

    更新日期：2009-12-01 00:00:00

  • Placental pathologic features of preterm preeclampsia.

    abstract：OBJECTIVE:Our purpose was to compare the incidence and interrelationships of uteroplacental vasculopathy and chronic inflammatory and placental vasoocclusive lesions in preeclampsia and spontaneous delivery before 32 weeks' gestation. STUDY DESIGN:Review of singleton live-born nonanomalous infants born at 22 to 32 wee...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/0002-9378(95)91333-5

    authors： Salafia CM,Pezzullo JC,López-Zeno JA,Simmens S,Minior VK,Vintzileos AM

    更新日期：1995-10-01 00:00:00

  • Cardiovascular effects of 6 months of hormone replacement therapy versus placebo: differences associated with years since menopause.

    abstract：OBJECTIVE:In response to post-Women's Health Initiative dialog regarding individualized hormone replacement therapy (HRT), this study evaluates cardiovascular and neuroendocrine effects of HRT versus placebo in postmenopausal women grouped according to time since menopause. STUDY DESIGN:Resting and stress blood pressu...

    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/j.ajog.2003.09.045

    authors： Brownley KA,Hinderliter AL,West SG,Grewen KM,Steege JF,Girdler SS,Light KC

    更新日期：2004-04-01 00:00:00

  • Prospective study of intraabdominal adhesions among women of different races with or without keloids.

    abstract：OBJECTIVE:We sought to evaluate postsurgical adhesions in women of different races with or without keloids. STUDY DESIGN:This was a prospective study evaluating postsurgical adhesions after a cesarean delivery in 429 women with or without keloids. The outcome measures were the prevalence and extent of adhesions in wom...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/j.ajog.2010.09.005

    authors： Tulandi T,Al-Sannan B,Akbar G,Ziegler C,Miner L

    更新日期：2011-02-01 00:00:00

  • The correlation of biochemical monitoring versus umbilical flow velocity measurements of the human fetus.

    abstract：:The pulsatility index of the fetal umbilical arteries was evaluated in 14 high-risk pregnant patients delivered by cesarean section between 30 and 35 weeks of gestation. Transabdominal cord sampling by ultrasonic guidance was performed on 10 of these patients. Umbilical arterial and venous blood was obtained in all pa...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/0002-9378(88)90418-8

    authors： Ferrazzi E,Pardi G,Bauscaglia M,Marconi AM,Gementi B,Bellotti M,Makowski EL,Battaglia FC

    更新日期：1988-11-01 00:00:00

  • Long-term effects of hormone replacement therapy on the uterus and on uterine circulation.

    abstract：OBJECTIVE:Our purpose was to study the effects of postmenopausal hormone replacement therapy on the uterus and uterine circulation. STUDY DESIGN:The study population consisted of 432 women, 58 to 59 years of age. Color Doppler ultrasonography with a transvaginal probe was used to measure the size of the uterus and the...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/0002-9378(93)90506-e

    authors： Pirhonen JP,Vuento MH,Mäkinen JI,Salmi TA

    更新日期：1993-02-01 00:00:00

  • Colposcopy and computer graphics: a new method?

    abstract：:A new method is herein described that uses the most recent computer science techniques to obtain digitalized colposcopic images that may be useful not only as documents, but also as research tools. Because computer graphics is a recent and ever-growing discipline, our method, too, might undergo considerable improvemen...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/s0002-9378(89)80021-3

    authors： Contini V,Zobbi CL,Pasquinucci C

    更新日期：1989-03-01 00:00:00

  • Conservative treatment of ectopic pregnancy with methotrexate.

    abstract：:Six subjects with distal ampullary ectopic pregnancies were treated with four doses of intravenous methotrexate (1.0 mg/kg) followed by four doses of leucovorin (0.1 mg/kg, intramuscularly). The diagnosis was established in all cases by laparoscopy following sonography and radioimmunoassay for serum beta subunit of hu...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/0002-9378(86)90716-7

    authors： Ory SJ,Villanueva AL,Sand PK,Tamura RK

    更新日期：1986-06-01 00:00:00

  • External cephalic version beginning at 34 weeks' gestation versus 37 weeks' gestation: a randomized multicenter trial.

    abstract：OBJECTIVE:In about 3% to 4% of all pregnancies at term, the fetal presentation will be noncephalic. External cephalic version (ECV) at term has been shown to decrease the rate of noncephalic presentation at birth and to decrease the rate of cesarean section associated with breech presentation. However, success rates fo...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 临床试验,杂志文章,多中心研究,随机对照试验

    doi：10.1067/mob.2003.442

    authors： Hutton EK,Kaufman K,Hodnett E,Amankwah K,Hewson SA,McKay D,Szalai JP,Hannah ME

    更新日期：2003-07-01 00:00:00

  • Neonatal morbidity according to gestational age and birth weight from five tertiary care centers in the United States, 1983 through 1986.

    abstract：OBJECTIVES:This study details the incidence, by gestational age and birth weight, of specific neonatal morbidities in singleton neonates without major congenital anomalies. STUDY DESIGN:Data were prospectively collected on all deliveries at five tertiary centers in the United States during the years 1983 through 1986....

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/0002-9378(92)91551-k

    authors： Robertson PA,Sniderman SH,Laros RK Jr,Cowan R,Heilbron D,Goldenberg RL,Iams JD,Creasy RK

    更新日期：1992-06-01 00:00:00

  • The effects of dexamethasone and betamethasone on surfactant protein-B messenger RNA expression in human type II pneumocytes and human lung adenocarcinoma cells.

    abstract：OBJECTIVE:The purpose of this study was to compare the effect of a single 48-hour exposure to betamethasone or dexamethasone in the NCI-H441 cell line and in human type II pneumocytes. STUDY DESIGN:NCI-H441 cells were exposed 48 hours to varying concentrations of betamethasone or dexamethasone (10(-10) to 10(-7) mol/L...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/j.ajog.2004.01.015

    authors： Ramin SM,Vidaeff AC,Gilstrap LC 3rd,Bishop KD,Jenkins GN,Alcorn JL

    更新日期：2004-04-01 00:00:00

  • Vulvar cancer in young women: demographic features and outcome evaluation.

    abstract：OBJECTIVE:The objective of the study was to identify prognostic and environmental factors associated with vulvar carcinoma in young women. STUDY DESIGN:This study was a review of patients younger than 45 years who were diagnosed with vulvar squamous cell carcinoma between 1994 and 2006. RESULTS:Fifty-six patients wer...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/j.ajog.2009.01.014

    authors： Lanneau GS,Argenta PA,Lanneau MS,Riffenburgh RH,Gold MA,McMeekin DS,Webster N,Judson PL

    更新日期：2009-06-01 00:00:00

  • Corticosteroid-binding globulin as a biologic assay for endogenous estrogen in patients with and without endometrial carcinoma.

    abstract：:Serum corticosteroid-binding globulin (CBG) concentrations in blood respond to endogenous or exogenous estrogens in a dose-response manner and serve as a biologic assay for estrogens. Because endometrial carcinoma is associated with unopposed or excessive estrogen stimulation, the CBG binding capacity of sera of patie...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/0002-9378(81)90480-4

    authors： Wilson EA,Jawad MJ,Donaldson ES

    更新日期：1981-03-15 00:00:00

  • Effect of maternal docosahexaenoic acid supplementation on postpartum depression and information processing.

    abstract：OBJECTIVE:The purpose of this study was to determine the effect of docosahexaenoic acid supplementation on plasma phospholipid docosahexaenoic acid content and indices of depression and information processing for women who breast-feed. STUDY DESIGN:Mothers who planned to breast-feed their infants were assigned randoml...

    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：10.1067/mob.2003.275

    authors： Llorente AM,Jensen CL,Voigt RG,Fraley JK,Berretta MC,Heird WC

    更新日期：2003-05-01 00:00:00

  • Hypertriglyceridemia and hypoxemia in small-for-gestational-age fetuses.

    abstract：:Plasma triglyceride concentration and blood oxygen tension were measured in samples obtained by cordocentesis from 35 small- and 54 appropriate-for-gestational-age fetuses at 18 to 36 weeks' gestation. In the appropriate-for-gestational-age fetuses there was an exponential decrease in plasma triglycerides with gestati...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/0002-9378(90)90391-j

    authors： Economides DL,Crook D,Nicolaides KH

    更新日期：1990-02-01 00:00:00

  • Occupational fatigue and preterm premature rupture of membranes. National Institute of Child Health and Human Development Maternal-Fetal Medicine, Units Network.

    abstract：OBJECTIVE:The aim of this study was to prospectively determine the relationship between occupational fatigue and spontaneous preterm delivery segregated into the etiologically distinct categories of spontaneous preterm labor, preterm premature rupture of membranes, and indicated preterm delivery. STUDY DESIGN:A total ...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章,多中心研究

    doi：10.1067/mob.2001.110312

    authors： Newman RB,Goldenberg RL,Moawad AH,Iams JD,Meis PJ,Das A,Miodovnik M,Caritis SN,Thurnau GR,Dombrowski MP,Roberts J,National Institute of Child Health and Human Development Maternal-Fetal Medicine Units Network.

    更新日期：2001-02-01 00:00:00

  • Policy change is not enough: engaging provider champions on immediate postpartum contraception.

    abstract：:Rates of short-interval pregnancies that result in unintended pregnancies remain high in the United States and contribute to adverse reproductive health outcomes. Long-acting reversible contraception methods have annual failure rates of <1%, compared with 9% for oral contraceptive pills, and are an effective strategy ...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/j.ajog.2018.03.007

    authors： Okoroh EM,Kane DJ,Gee RE,Kieltyka L,Frederiksen BN,Baca KM,Rankin KM,Goodman DA,Kroelinger CD,Barfield WD

    更新日期：2018-06-01 00:00:00

  • Vaginal birth after cesarean section: the impact of patient resistance to a trial of labor.

    abstract：:In spite of the relative safety and medical advantages of vaginal birth after cesarean section, the procedure continues to be underutilized in the private practice setting. To evaluate the hypothesis that resistance by the patient often precludes a trial of labor, an observational study was conducted of all women with...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/0002-9378(91)91422-s

    authors： Joseph GF Jr,Stedman CM,Robichaux AG

    更新日期：1991-06-01 00:00:00

  • Epidermal growth factor receptor expression in normal ovarian epithelium and ovarian cancer. I. Correlation of receptor expression with prognostic factors in patients with ovarian cancer.

    abstract：:Previous studies in breast and bladder cancer have suggested that epidermal growth factor receptor is expressed by only a proportion of cancers and is associated with poor clinical outcome. We used a monoclonal antibody specifically reactive with the extracellular domain of the epidermal growth factor receptor to loca...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/s0002-9378(11)80044-x

    authors： Berchuck A,Rodriguez GC,Kamel A,Dodge RK,Soper JT,Clarke-Pearson DL,Bast RC Jr

    更新日期：1991-02-01 00:00:00

  • Amniotic fluid induces platelet-neutrophil aggregation and neutrophil activation.

    abstract：OBJECTIVE:Amniotic fluid embolism syndrome is a fatal disease in pregnant women. The exact role of platelets and neutrophils in amniotic fluid embolism syndrome is not clear. We examined whether amniotic fluid could affect platelet-neutrophil aggregation and activation and the possible mechanisms. STUDY DESIGN:Blood s...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/j.ajog.2013.01.012

    authors： Chen KB,Chang SS,Tseng YL,Chiu TH,Liao CC,Ho M,Huang GS,Li CY

    更新日期：2013-04-01 00:00:00

  • Exercise prescription in pregnancy: weight-bearing versus non-weight-bearing exercise.

    abstract：:Bicycle ergometry (non-weight-bearing exercise) and treadmill (weight-bearing exercise) were compared to assess physiologic responses to similar work loads. A total of 22 subjects at 29.3 +/- 1.6 (+/- SEM) weeks' gestation who performed non-weight-bearing exercise were compared with 15 similarly fit subjects at 26.1 +...

    journal_title：American journal of obstetrics and gynecology

    pub_type： 杂志文章

    doi：10.1016/0002-9378(89)90905-8

    authors： Artal R,Masaki DI,Khodiguian N,Romem Y,Rutherford SE,Wiswell RA

    更新日期：1989-12-01 00:00:00

  • Randomized trial of prophylactic antibiotic therapy after preterm amnion rupture.

    abstract：OBJECTIVE:Our purpose was to determine whether maternal administration of prophylactic ampicillin or erythromycin after preterm amnion rupture is associated with maternal or neonatal benefits. STUDY DESIGN:Women with singleton pregnancies between 24 and 33 weeks 6 days of gestation were eligible if they had no immedia...

    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：10.1016/0002-9378(93)90038-k

    authors： Owen J,Groome LJ,Hauth JC

    更新日期：1993-10-01 00:00:00