Abstract:
:Although values for cardiac output in the newborn infant have been reported previously, the methods utilized have been invasive. To assess if cardiac output could be determined noninvasively in the neonate, we measured mean ascending aortic blood flow velocity (VAo) in well newborns using a portable 5MHz, range gated, pulsed Doppler velocity meter. Measurements were made from a suprasternal approach in 8 preterm (mean birth weight 1718 gm; mean estimated gestation age 33.3 weeks) and 14 term (mean birthweight 3127 gm; mean EGA 39.8 weeks) healthy infants under one week of age. The internal ascending aortic systolic diameter was determined echographically and aortic cross sectional area was calculated: AAo = pi d2/4. Ascending aortic blood flow (QAo) was then computed as QAo (ml/min) = VAo (cm/sec) X AAo (cm2) X 60 (sec/min). With the exclusion of patent ductus arteriosus (PDA) and detectable intracardiac defects, QAo was taken to equal cardiac output. Flow determinations were normalized to body weight. The 8 preterm infants had a mean cardiac output of 221 +/- 56 (+/- SD) ml/min/kg. The 14 term infants had a similar mean cardiac output of 236 +/- 47 ml/min/kg. The mean cardiac output of all 22 infants was 230 +/- 50. This study establishes normal values for cardiac output determined noninvasively by the Doppler technique, in the first week of life in healthy infants. These values are similar to previously reported systemic blood flows, which were determined by cardiac catheterization and thermodilution methods in healthy newborn infants.
journal_name
Am J Perinatoljournal_title
American journal of perinatologyauthors
Alverson DC,Eldridge MW,Johnson JD,Aldrich M,Angelus P,Berman W Jrdoi
10.1055/s-2007-999991subject
Has Abstractpub_date
1984-01-01 00:00:00pages
148-51issue
2eissn
0735-1631issn
1098-8785journal_volume
1pub_type
杂志文章abstract::The effect of active management on latent phase labor was assessed in 197 consecutive nulliparous women. Active management resulted in a significant shortening of the latent phase but had no effect on active phase labor. Patients undergoing induction of labor had latent phases that were almost identical to the accepte...
journal_title:American journal of perinatology
pub_type: 临床试验,杂志文章
doi:10.1055/s-2007-999524
更新日期:1990-10-01 00:00:00
abstract::Preeclampsia is uncommon prior to 24 weeks gestation and has been associated with partial and complete hydatidiform moles. We present an unusual case in which a patient was diagnosed with preeclampsia at 17 weeks gestation. Ultrasound findings were consistent with a partial hydatidiform mole. Within 24 hours of the on...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2006-934093
更新日期:2006-04-01 00:00:00
abstract:OBJECTIVE:This study assessed the impact of a nurse simulation training program on perception of kangaroo mother care (KMC) value and transfer skill competency. STUDY DESIGN:An 8-item Likert scale skill survey tool and a 24-item Likert developmental care survey tool were used in a prospective cohort study to analyze p...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0034-1371359
更新日期:2014-11-01 00:00:00
abstract::The Roberts-SC phocomelia syndrome (pseudothalidomide syndrome) is a rare, usually lethal condition involving short limbs and occasional hydrocephalus. Presented is a case in which prenatal sonographic findings were highly suggestive of this syndrome, although not definite. In this fetus, findings of hydrocephalus, sh...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-999392
更新日期:1991-07-01 00:00:00
abstract:INTRODUCTION:Although guidelines recommend repeat ultrasound in the setting of an incomplete fetal anatomic survey, the clinical utility of this practice has not been established. As such, we aimed to assess the yield of repeat ultrasound for anomaly detection following an incomplete survey. MATERIALS AND METHODS:This...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0038-1626715
更新日期:2018-12-01 00:00:00
abstract:OBJECTIVE: The study aims to assess the impact on neurodevelopmental outcomes of a prolonged hemodynamically significant patent ductus arteriosus (PDA) after a conservative treatment. STUDY DESIGN: This involves the study of two cohorts of preterm infants 23 to 29 weeks gestation, before (n = 29) and after (n = 54) a ...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0039-1697674
更新日期:2019-10-10 00:00:00
abstract:OBJECTIVE:Advances in neonatology have made possible the survival of neonates with lower gestational ages and birth weights. Nevertheless, findings remain of a sex difference in mortality for premature and low birth weight (LBW) neonates with male sex often associated with poorer outcome (the "male disadvantage"). Thro...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0037-1608876
更新日期:2018-07-01 00:00:00
abstract:OBJECTIVE: New treatments are needed for multidrug-resistant (MDR) gram-negative infections in neonates. Ceftolozane/tazobactam is a β-lactam/β-lactamase inhibitor combination that has broad-spectrum activity against most common gram-negative bacteria, including MDR strains. We evaluated pharmacokinetics (PK) and safet...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0039-3402719
更新日期:2020-01-07 00:00:00
abstract::The primary objective of this study was to determine whether having the sickle cell trait is independently associated with preeclampsia. We performed a retrospective cohort study of 1998 pregnant patients who either did or did not have the sickle cell trait. All patients were screened for the sickle trait using the "S...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2003-37953
更新日期:2003-01-01 00:00:00
abstract::The numbers of ectopic pregnancies have increased because of the popularization of assisted reproductive techniques. However, the retroperitoneal space is an exceptional location for ectopic pregnancy because the entrance to the retroperitoneal space is unknown. A woman 31 years of age who had received bilateral salpi...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-1004829
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:Bacillus Calmette-Guerin (BCG) scar formation is considered a visual marker of vaccination and cell-mediated immune response. This study characterized the association between pregnancy and birth characteristics with BCG scar formation. STUDY DESIGN:Pregnant women were enrolled prospectively. Infants were fo...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0038-1676614
更新日期:2019-10-01 00:00:00
abstract:PURPOSE:We hypothesized that surgical energy could be used to create hysterotomies in open fetal surgery. STUDY DESIGN:Initial studies compared the LigaSure Impact and Harmonic ACE + 7 Shears in the efficiency of hysterotomy and thermal damage. Pregnant ewes at an estimated gestational age (EGA) of 116 to 120 days (te...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0038-1673664
更新日期:2019-06-01 00:00:00
abstract::The objective of this study was to perform antiphospholipid antibody screening in women with chronic hypertension to assess whether the presence of such antibodies is associated with adverse pregnancy outcome. Serum for anticardiolipin antibodies and lupus anticoagulant was obtained in pregnant women with chronic hype...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2004-829870
更新日期:2004-07-01 00:00:00
abstract::We sought to validate center-specific published medians and estimate the effects of sonologist and Doppler measurement techniques on middle cerebral artery (MCA) peak systolic velocity (PSV) values. We studied 154 gravidas with normal singletons who underwent MCA PSV measurement at 18 to 35 weeks' gestation by one of ...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0030-1249365
更新日期:2010-09-01 00:00:00
abstract::Aim To determine the challenges, if any, in translating the benefits of surfactant replacement therapy (SRT) to a resource-limited setting. Method This was a retrospective descriptive study comparing the outcome of 75 cases who received surfactant and 69 controls who did not at the University Hospital of the West Indi...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0036-1598023
更新日期:2017-07-01 00:00:00
abstract::In 18 women with gestational diabetes the variables of an oral glucose tolerance test (fasting and 2-hour blood glucose values and area under the blood glucose curve) performed in the last trimester of pregnancy correlated significantly with the urinary C-peptide excretion during the first 12 hours of the life (r = 0....
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-999674
更新日期:1988-04-01 00:00:00
abstract::Four cases of transient polyhydramnios are reviewed. It is proposed that by taking note of changes in amniotic fluid volume, one can more accurately assess a fetal-maternal unit that is affected by a number of specific disease processes. ...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-999656
更新日期:1988-01-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to investigate whether maternal bronchial asthma increases the risk for long-term respiratory morbidity of the offspring. STUDY DESIGN:A population-based cohort study compared the incidence of long-term pediatric hospitalizations due to respiratory disease of the offspring of ...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0038-1639507
更新日期:2018-09-01 00:00:00
abstract::Fifty-four pregnant patients referred for nonstress testing with findings suggestive of intrauterine growth retardation (IUGR) were followed with serial biochemical determinations and ultrasound evaluations. Confirmation of IUGR was made in 18 of the neonates based on body weights below the 10th percentile. Stepwise d...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-999770
更新日期:1987-07-01 00:00:00
abstract:OBJECTIVE: The aim of this study was to estimate if preterm premature rupture of membranes in women with cerclage is due to the cerclage itself or rather the underlying risk factors for preterm birth in this population. STUDY DESIGN: This was a retrospective cohort study of singleton pregnancies who underwent Shirodka...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0040-1710009
更新日期:2020-05-23 00:00:00
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journal_title:American journal of perinatology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1055/s-0035-1562928
更新日期:2016-01-01 00:00:00
abstract::The combination of multicystic kidney and crossed ectopia is very rare. In most of the affected children, diagnosis has been made postnatally by ultrasonographic examination to evaluate a palpated abdominal mass. We describe the third male newborn reported in the literature with a prenatally diagnosed crossed ectopic ...
journal_title:American journal of perinatology
pub_type: 杂志文章,评审
doi:10.1055/s-2007-994073
更新日期:1998-08-01 00:00:00
abstract:OBJECTIVE:We have previously shown a decrease in the overall stillbirth rate at our institution in women receiving the seasonal influenza vaccine during pregnancy. The goal of this study was to ascertain factors associated with this decrease. STUDY DESIGN:This was a retrospective cohort study examining the stillbirth ...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0034-1544046
更新日期:2015-05-01 00:00:00
abstract::The purpose of this study was to determine the predictors and outcomes of pregnant women with vaginal-rectal carriage of community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA). We performed an unmatched 1:4 case-control study with two control groups (13 CA-MRSA cases, 52 methicillin-sensitive S. au...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-976551
更新日期:2007-04-01 00:00:00
abstract:OBJECTIVE: This study aimed to compare attitudes of providers regarding perinatal management and outcomes for periviable newborns of caregivers at centers with higher resuscitation (HR) and lower resuscitation (LR) rates in the delivery room. STUDY DESIGN: All obstetric and neonatal clinical providers at six U.S. site...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0040-1709128
更新日期:2020-04-15 00:00:00
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journal_title:American journal of perinatology
pub_type: 杂志文章,评审
doi:10.1055/s-0032-1323591
更新日期:2013-04-01 00:00:00
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journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-2007-993903
更新日期:1998-02-01 00:00:00
abstract::Percutaneously placed central venous lines have become an intricate part of the medical management of the very low birth weight infant. It is critically important that health care providers involved with the placement of these catheters be familiar with the possible subtle sites for catheter misplacement. We present t...
journal_title:American journal of perinatology
pub_type: 杂志文章,评审
doi:10.1055/s-2007-994099
更新日期:1997-02-01 00:00:00
abstract::Seventy premature infants (birthweight 1.75 kg or less, gestational age 33 weeks or less) with hemoglobin less than 10 g/dL and hematocrit less than 30% were studied and randomly divided into three groups. All of them received oral elemental iron 3 mg/kg/day and vitamin E 5 mg/kg/day during the study period. Recombina...
journal_title:American journal of perinatology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1055/s-2007-994483
更新日期:1995-09-01 00:00:00
abstract:OBJECTIVE:Amplitude-integrated electroencephalography (aEEG) is a simplified method for continuous monitoring of brain activity in the neonatal intensive care unit (NICU). Our objective was to describe current aEEG use in the United States. STUDY DESIGN:An online survey was distributed to the American Academy of Pedia...
journal_title:American journal of perinatology
pub_type: 杂志文章
doi:10.1055/s-0034-1395483
更新日期:2015-07-01 00:00:00