Abstract：
:M-mode echocardiography, in combination with electrocardiography and phonocardiography, has been used to measure pulmonary capillary pressure as well as other cardiac functions. Serial hemodynamic evaluations by use of this technique were performed in seven healthy pregnant women in the recumbent position. Each patient had five studies: four antenatal studies and one postpartum study that served as a control. Mean pulmonary capillary pressure was within normal limits throughout pregnancy and the puerperium. Cardiac output did not increase significantly by the end of the first or second trimester but became elevated by 31% in the early third trimester. This elevation in cardiac output persisted until delivery and resulted from a comparable increase in heart rate. Stroke volume and ejection fraction did not change significantly, while peripheral vascular resistance fell, although not significantly, reaching a nadir at approximately 28 weeks of gestation. Our findings indicate that maternal cardiac output increases due to an increased heart rate and reduced afterload.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
Mashini IS,Albazzaz SJ,Fadel HE,Abdulla AM,Hadi HA,Harp R,Devoe LDdoi
10.1016/0002-9378(87)90146-3subject
Has Abstractpub_date
1987-05-01 00:00:00pages
1208-13issue
5eissn
0002-9378issn
1097-6868pii
0002-9378(87)90146-3journal_volume
156pub_type
杂志文章abstract：OBJECTIVE:The purpose of this study was to determine risk factors for trocar implantation metastasis after diagnostic laparoscopy in patients with primary or recurrent advanced ovarian cancer. STUDY DESIGN:Eighty-three women with primary advanced ovarian cancer and 21 women with recurrent ovarian cancer undergoing a l...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(99)70489-8
更新日期：1999-09-01 00:00:00
abstract：:The effect of an intravenous bolus of 25 mg of conjugated estrogen (Premarin) on vaginal blood flow in seven surgically menopausal women was measured by a thermal conductance probe. Electrical power (0.8 W) was supplied to a resistance wire incorporated in the surface of the probe, and its surface temperature was moni...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(82)90075-8
更新日期：1982-06-15 00:00:00
abstract：:A study comparing the efficacy of cefotetan versus cefoxitin for prophylaxis in patients undergoing cesarean section was carried out at the University of Iowa. After institutional review, 36 subjects who met the study criteria and agreed to participate were entered into the study; of these, 29 were evaluable for effic...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/0002-9378(86)90496-5
更新日期：1986-04-01 00:00:00
abstract：:Maternal heart rate (MHR), blood pressure (BP), the differential index (DI) describing the short-term component of fetal heart rate (FHR) variability, and the interval index (II) describing the long-term component were measured in eight subjects in the midtrimester before, during, and after the mothers smoked a standa...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(83)91013-x
更新日期：1983-07-15 00:00:00
abstract：:The effect of surgically lengthening the rabbit oviduct was investigated. In the study group, a lengthened fallopian tube was created by division of the left fallopian tube at the ampullary-isthmic junction and the right fallopian tube at the uterotubal junction. The proximal left tube and the entire right tube were m...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(83)90019-4
更新日期：1983-11-01 00:00:00
abstract：:Recent data show that transabdominal cerclage placement via laparoscopy carries better obstetrical outcomes in comparison to transabdominal cerclage placement via laparotomy. In this surgical tutorial, we review the technique for minimally invasive abdominal cerclage and highlight the surgical differences between prec...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2018.07.025
更新日期：2018-10-01 00:00:00
abstract：:We have studied the effects of magnesium sulfate (MgSO4) administration in chronically instrumented normotensive and hypertensive pregnant sheep. Animals of 90 to 144 days' gestation were divided in two groups; those with normotensive arterial pressure and those in which renovascular hypertension had been produced. Ou...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(77)90255-1
更新日期：1977-04-01 00:00:00
abstract：:Four hundred twenty-nine patients were entered into four prospective randomized clinical studies between January 1, 1973, and July 1, 1979. The records of 395 of these were analyzed to determine the proportion of patients surviving 48 months after therapy initiation. Ninety-six patients (24%) were living at 48 months,...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/0002-9378(84)90543-x
更新日期：1984-04-01 00:00:00
abstract：:In 39 pregnant and six nonpregnant dogs the abdominal aorta was exposed extraperitoneally through a left paralumbar incision, and a vascular occluder and a flow transducer were placed around it. The tubing of the occluder and the wiring of the flow transducer were slipped under the skin and advanced to the back of the...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(81)90512-3
更新日期：1981-03-01 00:00:00
abstract：OBJECTIVE:Our purpose was to compare the effectiveness, women's views of the termination procedure, and success of umbilical cord culture for vaginal and oral misoprostol versus intra-amniotic prostaglandin PGF(2alpha) for second-trimester pregnancy termination (STPT). STUDY DESIGN:We randomized 217 women, 15 to 24 we...
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.2003.09.037
更新日期：2004-03-01 00:00:00
abstract：:During a 40 year period 374 patients with infiltrative carcinoma of the vulva were evaluated. Some form of radical surgery was the treatment chosen for 278 patients. The absolute 5 year survival rates for all clinical stages treated with some form of radical surgery was 66.8 per cent with a corrected rate of 73.9 per ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(16)33392-0
更新日期：1976-04-15 00:00:00
abstract：OBJECTIVE:Our aim was to determine the relative efficacy and complications of low-dose heparin and intermittent pneumatic calf compression for the prevention of postoperative venous thrombosis in patients undergoing surgery for gynecologic malignancy. STUDY DESIGN:Randomized trial comparing 107 patients treated with l...
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)90360-u
更新日期：1993-04-01 00:00:00
abstract：OBJECTIVE:In adults, one of the major determinants of leukocyte telomere length (LTL), a predictor of age-related diseases and mortality, is cumulative psychosocial stress exposure. More recently we reported that exposure to maternal psychosocial stress during intrauterine life is associated with LTL in young adulthood...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2012.11.033
更新日期：2013-02-01 00:00:00
abstract：:The progesterone antagonist onapristone was used in guinea pigs during late pregnancy (43 +/- 2 days after coitus) and before term (day 61 after coitus) to investigate the role of progesterone on uterine reactivity to exogenous oxytocin, concentration of oxytocin receptors, and gap junctions in the myometrium. Onapris...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90030-u
更新日期：1991-12-01 00:00:00
abstract：:Much has been written about the need for help for the overworked obstetrician. Two obstetricians delivering over 500 babies annuallay had insufficient time for their gynecology practice. Two nurse-midwives were employed and in the first year they delivered 61 per cent of those patients who delivered vaginally. All nor...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(75)90940-0
更新日期：1975-09-01 00:00:00
abstract：OBJECTIVE:An infrequent clinical dilemma arises when a patient with uterine prolapse that is best treated vaginally is discovered to have coexisting endometrial cancer. Often the underlying cancer is only discovered intraoperatively or postoperatively. We have reviewed our experience in this situation in an effort to e...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/0002-9378(95)91399-8
更新日期：1995-06-01 00:00:00
abstract：:This article, from the To the Point series prepared by the Association of Professors of Gynecology and Obstetrics Undergraduate Medical Education Committee, is an overview of issues to consider regarding learner mistreatment and its effects on the undergraduate medical education learning environment in the United Stat...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2019.04.021
更新日期：2019-11-01 00:00:00
abstract：OBJECTIVE:The objective of this study was to determine whether introduction of laparoscopically assisted vaginal hysterectomy decreases the percentage of women requiring laparotomy for hysterectomy. STUDY DESIGN:A retrospective review of women undergoing hysterectomies from 1990 through 1992 was performed. Type of hys...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(94)70032-x
更新日期：1994-08-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to provide evidenced-based guidance for surgical decisions during cesarean delivery. STUDY DESIGN:We performed MEDLINE, PubMed, EMBASE, and COCHRANE searches with the terms cesarean section, cesarean delivery, cesarean, pregnancy, randomized trials, and each technical aspect of ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2005.03.063
更新日期：2005-11-01 00:00:00
abstract：OBJECTIVE:Blastocysts are advanced-stage embryos with high implantation potential; theoretically, limited numbers of blastocysts can be used for embryo transfer to achieve good pregnancy rates with low multiple pregnancy rates. Clinical outcomes of a newly implemented blastocyst transfer program were evaluated. STUDY ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2001.114851
更新日期：2001-06-01 00:00:00
abstract：:Color Doppler imaging could easily and rapidly detect the absence of an umbilical artery, despite the presence of oligohydramnios in one case and multiple cord loops involving a normal cord in the other case. In the third case, which on gray-scale imaging appeared as an indeterminate cystic structure of the cord, colo...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(89)90663-7
更新日期：1989-11-01 00:00:00
abstract：:To determine the genetic origin of the complete hydatidiform mole, 20 abnormal pregnancies were studied with restriction fragment length polymorphism with five genomic probes: EJ 6.6, beta-globin gene, 3'alpha-hypervariable region, J-Bir, and St14. In the 12 cases of molar pregnancy, pure paternal origin was proved in...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90537-2
更新日期：1991-03-01 00:00:00
abstract：:We performed a case-control study of the effect of exposure to Chlamydia trachomatis on the risk for tubal pregnancy. Sixty women with tubal pregnancies and 60 matched control women with normal second-trimester intrauterine pregnancies were studied. Cases were more likely than controls to have detectable antichlamydia...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(88)80177-7
更新日期：1988-10-01 00:00:00
abstract：OBJECTIVE:We hypothesized that diagnostic approaches to lower genital tract infections are inaccurate and proposed this study to evaluate typical approaches. STUDY DESIGN:Clinical diagnoses were made with symptoms, direct observation, wet mount, vaginal pH, and amines in 598 women with genital complaints. Laboratory t...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,多中心研究
doi：10.1016/j.ajog.2004.02.015
更新日期：2004-04-01 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
pub_type： 杂志文章
doi：10.1016/j.ajog.2005.05.072
更新日期：2005-09-01 00:00:00
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
更新日期：1993-02-01 00:00:00
abstract：:One hundred ninety-nine female patients with candidal vulvovaginitis were included in an open, randomized, mycologically controlled study carried out at three Dutch gynecologic clinics to determine the efficacy and tolerability of a single vaginal tablet containing 500 mg clotrimazole in comparison with a 6-day treatm...
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(85)80008-9
更新日期：1985-08-01 00:00:00
abstract：OBJECTIVE:Human trophoblast proteolytic activity is believed to have implications for early implantation events and maintenance of chorionic structural integrity later in gestation. Abnormal release of chorion-derived extracellular matrix proteins such as fibronectin may identify patients at risk for preterm labor and ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(97)80012-9
更新日期：1997-01-01 00:00:00
abstract：OBJECTIVE:The objective of this study was to prospectively assess physical and biochemical cardiovascular risk markers in women who had developed preeclampsia (PE) at 1 year postpartum. STUDY DESIGN:Following an overnight fast, previously PE (n = 70) and normotensive women (n = 70) had weight and blood pressure record...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2008.06.035
更新日期：2009-01-01 00:00:00
abstract：:A total of 62 infertile women with a laparoscopic diagnosis of endometriosis were allocated randomly to two treatment groups, one of which (32 patients) received oral danazol 600 micrograms/day and the other (30 patients) received intranasal buserelin 1200 micrograms/day for 6 months. Suppression of serum levels of es...
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(89)90739-4
更新日期：1989-10-01 00:00:00
