Abstract：
OBJECTIVE:The aim of this study was to test the hypothesis that standardization of cardiac output in pregnancy by correcting for body surface area, and thus obtaining cardiac index, is justified. STUDY DESIGN:Cardiac output was determined by thoracic electrical bioimpedance monitoring in 78 pregnant women; recordings were made at 1-month intervals from the first antenatal visit and a further two were made during the sixth and twelfth weeks after delivery. In a separate group of 10 pregnant women, cardiac output was determined by Doppler echocardiography at 5, 10, 14, 25, and 35 weeks and at 12 weeks post partum. RESULTS:Irrespective of gestational age, the correlation between cardiac output and body surface area was poor, by either thoracic electrical bioimpedance monitoring (r = 0.15 to 0.39) or Doppler echocardiography (r = 0.00 to 0.29). Furthermore, strict proportionality between cardiac output and body surface area was in general not the best way of describing the (poor) relation between these two. CONCLUSION:Standardization of cardiac output in pregnancy by correcting for body surface area to compare cardiac performance between individuals and between groups of individuals is not justified.
journal_name
Am J Obstet Gynecoljournal_title
American journal of obstetrics and gynecologyauthors
van Oppen AC,van der Tweel I,Duvekot JJ,Bruinse HWdoi
10.1016/0002-9378(95)90367-4subject
Has Abstractpub_date
1995-09-01 00:00:00pages
923-8issue
3 Pt 1eissn
0002-9378issn
1097-6868pii
0002-9378(95)90367-4journal_volume
173pub_type
杂志文章abstract：OBJECTIVE:Our purpose was to evaluate the outcome of infants who underwent successful resuscitation after initial Apgar scores of 0 at both 1 and 5 minutes. STUDY DESIGN:Eligible infants were identified through the perinatal database at the University of Tennessee, Memphis. Hospital records and long-term outcomes, whe...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2000.104951
更新日期：2000-05-01 00:00:00
abstract：BACKGROUND:Inadequate or excessive total gestational weight gain is associated with increased risks of small- and large-for-gestational-age births, respectively, but evidence is sparse regarding overall and trimester-specific patterns of gestational weight gain in relation to these risks. Characterizing the interrelati...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,多中心研究
doi：10.1016/j.ajog.2017.05.013
更新日期：2017-09-01 00:00:00
abstract：:The effect of maternal ingestion of ethanol (0.25 gm/kg) on fetal breathing movements, gross fetal body movements, and fetal heart rate was studied in 11 healthy pregnant women at 37 to 40 weeks' gestation. Fetal breathing movements were almost abolished within 30 minutes of the alcoholic drink and remained significan...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(83)90501-x
更新日期：1983-01-15 00:00:00
abstract：:Uterine fibroid tumors (leiomyomas) are the most common benign pelvic tumors in women and are the major indication for hysterectomy. Fibroid tumors are more common and more severe among African American women. Although this disease disproportionately affects the African American population, we understand little about ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2013.08.008
更新日期：2014-03-01 00:00:00
abstract：OBJECTIVE:The purpose of this research was to test a widely publicized theory that nausea and vomiting of pregnancy protects women from ingesting certain vegetables and other foods that produce congenital anomalies and other adverse outcomes of pregnancy. STUDY DESIGN:The theory was tested with use of data on dietary ...
journal_title：American journal of obstetrics and gynecology
pub_type： 临床试验,杂志文章
doi：10.1016/s0002-9378(97)80032-4
更新日期：1997-01-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to describe obstetric outcomes after surgical abortion at > or = 20 weeks, and to identify risk factors for subsequent spontaneous preterm birth. STUDY DESIGN:Patients who had surgical abortion at > or = 20 weeks' gestation from 1996 to 2003 and received subsequent prenatal care...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2005.05.078
更新日期：2005-09-01 00:00:00
abstract：:The amniotic fluid index and the nonstress test are commonly used in the expectant management of preterm premature rupture of membranes. This study was designed to investigate the interrelationship of the nonstress test and the amniotic fluid index during the preterm rupture of membranes latency period. Fifty patients...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(91)90477-9
更新日期：1991-10-01 00:00:00
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
更新日期：1988-11-01 00:00:00
abstract：:A retrospective study of 56 patients treated for carcinoma in situ of the vulva over a 24-year period has shown a relative increase in the occurrence of this neoplasm. Only 6.7% of patients in the first 14 years of the study period were less than 35 years of age, as compared with 29.3% in the last decade. In the earli...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(84)90669-0
更新日期：1984-11-15 00:00:00
abstract：OBJECTIVES:Our goals were (1) to determine whether hypertension, proteinuria, and glomerular endotheliosis can be produced by chronic reduction of lower aortic pressure in pregnant rhesus monkeys and (2) to study the time course of the development of hypertension by means of longitudinal arterial blood pressure measure...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(93)90171-e
更新日期：1993-07-01 00:00:00
abstract：:There were 153 oral prostaglandin (PG) E2 inductions attempted in 149 patients. For various reasons nine cases were dropped from the study. Of the remaining 144 induction attempts, 96 were judged successful, with a success rate of 67 per cent. Details of these inductions are presented, including summaries of three pat...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(78)90857-8
更新日期：1978-11-15 00:00:00
abstract：:Since July 1, 1978, we have instituted the following changes in the management of severely Rh-immunized patients: (1) serial amniotic fluid optical density (delta OD450 ) values and real-time ultrasound scanning beginning at 21 weeks' gestation, (2) fetal transfusions as early as the twenty-third week, (3) ultrasound ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(84)90234-5
更新日期：1984-06-01 00:00:00
abstract：OBJECTIVE:The objective of this study was to determine the minimum threshold level at which maximum anatomic prolapse predicts bothersome pelvic floor symptoms. STUDY DESIGN:We performed a cross-sectional study of women older than 40 years undergoing gynecologic and urogynecologic examinations using Pelvic Organ Prola...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2008.07.028
更新日期：2008-12-01 00:00:00
abstract：OBJECTIVE:Oral contraceptive use has been associated with a lower risk of symptomatic pelvic inflammatory disease but a higher risk of chlamydial cervicitis. To explain these seemingly contradictory findings, we asked whether oral contraceptive use was more common among women with unrecognized endometritis than among w...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,多中心研究
doi：10.1016/s0002-9378(97)70551-9
更新日期：1997-03-01 00:00:00
abstract：OBJECTIVE:The objective of the study was to investigate the effectiveness of preemptive analgesia at pain control in women undergoing total abdominal hysterectomy. DATA SOURCES:Eligible studies, published through May 31, 2016, were retrieved through Medline, Cochrane Central Register for Controlled Trials, and Cochran...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2017.03.013
更新日期：2017-09-01 00:00:00
abstract：OBJECTIVE:Our aim was to compare the effects of transdermal versus oral estrogens on vascular resistance index, mean arterial pressure, serum lipid concentrations, norepinephrine, and left ventricular structure. STUDY DESIGN:Ten postmenopausal women received transdermal estradiol (0.05 mg/d) plus cyclic oral progester...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1067/mob.2001.112104
更新日期：2001-04-01 00:00:00
abstract：BACKGROUND:Addressing record high rates of Chlamydia trachomatis incidence in the United States requires the utilization of effective strategies, such as expedited partner therapy, to reduce reinfection and further transmission. Expedited partner therapy, which can be given as a prescription or medication, is a strateg...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2018.01.036
更新日期：2018-05-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to investigate the frequency of confined placental mosaicism (CPM) in placentas from liveborn infants. STUDY DESIGN:A retrospective analysis of 51 placentas from small-for-gestational-age (SGA), live born infants (birthweight below 5th centile), and 45 placentas from normally gr...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2007.08.027
更新日期：2008-02-01 00:00:00
abstract：:Our subjects were 32 patients whose old complete perineal lacerations were repaired in the 10 hospitals in the South Hampton Roads Metropolitan area over a 20-year period. The layer technique of repair (26 patients) and the Warren flap procedure (6 patients) were used. Function improved in 24 of 26 patients (92%) with...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(88)80053-x
更新日期：1988-09-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to test whether a quantitative high-throughput molecular screen can be used to probe human endometrium and initiate the development of molecular diagnostic tools with potential for identification of therapeutic targets in women with menstrual complaints. STUDY DESIGN:Endometrium...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2006.05.002
更新日期：2006-08-01 00:00:00
abstract：:The effect of estradiol infusion on uterine activity and peripheral levels of prostaglandin F and progesterone in pregnant women at term were investigated. 5 normal women at term and 4 women with pre-eclampsia at term were given estradiol-17 beta by infusion over 2-4 hours. Radioimmunoassay was used to measure perip...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(73)90646-7
更新日期：1973-09-15 00:00:00
abstract：:The effect upon fetal breathing movements (FBM) in 49 women with uncomplicated pregnancies who inhaled 5% carbon dioxide in air for 15 minutes was observed with an ADR real-time ultrasound scanner. A threefold increase in FBM occurred during the inhalation of CO2. ...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(80)90867-4
更新日期：1980-02-01 00:00:00
abstract：OBJECTIVE:The purpose of this study was to assess maternal and fetal morbidity and death in cases of severe preterm preeclampsia that were managed expectantly. STUDY DESIGN:It is a retrospective study that included 155 singleton pregnancies with severe preeclampsia at <34 weeks of gestation that were managed expectant...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2004.10.621
更新日期：2005-04-01 00:00:00
abstract：:With basic methodologic criteria as a framework, this report assesses the quality of the seven randomized controlled clinical trials conducted in five countries to compare a policy of routine electronic fetal monitoring with a policy of fetal heart rate monitoring by auscultation. One trial found a statistically signi...
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(87)90197-9
更新日期：1987-01-01 00:00:00
abstract：:Of 468 diagnosis-related groups identified by the federal government for Medicaid reimbursement, 15 are related to obstetric hospital care. Each diagnosis-related group is considered a distinct group in which cases are homogeneous with respect to resource consumption. Because the diagnosis-related group system is base...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(87)90052-4
更新日期：1987-03-01 00:00:00
abstract：:Acute vaginitis is one of the most common diseases seen in the practice of office gynecology. Large survey studies of women with lower genital tract symptoms suggestive of vaginitis have demonstrated the presence of three major etiologic categories in acute vaginitis: (1) nonspecific vaginosis (Gardnerella vaginalis),...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/s0002-9378(85)80002-8
更新日期：1985-08-01 00:00:00
abstract：BACKGROUND:Emerging research supports that fewer complications occur in patients who undergo surgery by higher surgical volume surgeons. The midurethral sling surgery has been involved in recent warnings and litigation, which further supports a need to understand features that enhance its safety and efficacy. OBJECTIV...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2019.09.006
更新日期：2019-11-01 00:00:00
abstract：:Although perimortem delivery has been recorded in the medical literature for millennia, the procedural intent has evolved to the current fetocentric approach, predicating timing of delivery following maternal cardiopulmonary arrest to optimize neonatal outcome. We suggest a call to action to reinforce the concept that...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章,评审
doi：10.1016/j.ajog.2015.07.019
更新日期：2015-11-01 00:00:00
abstract：OBJECTIVE:Pregnancies complicated by gestational diabetes mellitus (GDM) or preexisting diabetes mellitus (DM) are at high risk for adverse newborn outcomes. Whether GDM history, recurrence, or transition to DM modifies such risks is unknown. STUDY DESIGN:Medical record data on 62,013 repeat singleton pregnancies were...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/j.ajog.2013.12.026
更新日期：2014-05-01 00:00:00
abstract：:Platelet-poor plasma from 13 nonpregnant, 33 normally pregnant, and eight preeclamptic women was incubated with prostacyclin. The ability of platelet-poor plasma to diminish the antiaggregatory effect of prostacyclin was assessed by measuring this effect on arachidonic acid-induced platelet aggregation. Platelet aggre...
journal_title：American journal of obstetrics and gynecology
pub_type： 杂志文章
doi：10.1016/0002-9378(87)90370-x
更新日期：1987-04-01 00:00:00
