Abstract:
:The aortic isthmus (AoI) is a unique fetal watershed with a waveform reflecting its complex haemodynamic physiology. The systolic component represents left and right ventricular systolic ejection, and the diastolic component represents comparative downstream vascular impedance between the brachiocephalic and subdiaphragmatic fetal circulations. Several indices have been devised to quantify different components of the waveform, including the pulsatility index, resistance index, isthmic flow index, and recently the isthmic systolic index. There have been promising preliminary studies applying these indices to both cardiac (congenital) and extracardiac pathologies, including intrauterine growth restriction and twin-twin transfusion syndrome. However, the waveform's multifactorial origin has proven to be challenging, and the difficulty in separating various components of the waveform could explain that AoI evaluation does not have a clear clinical utility. Further research is underway to realise the full potential of this vessel in fetal cardiac and haemodynamically compromised pathological conditions. In this review article we outline the physiological origin of this Doppler waveform, describe in detail the various published indices, summarise the published literature to date, and finally outline potential future research and hopefully clinical applications.
journal_name
Fetal Diagn Therjournal_title
Fetal diagnosis and therapyauthors
Tynan D,Alphonse J,Henry A,Welsh AWdoi
10.1159/000446942subject
Has Abstractpub_date
2016-01-01 00:00:00pages
81-93issue
2eissn
1015-3837issn
1421-9964pii
000446942journal_volume
40pub_type
杂志文章,评审abstract:OBJECTIVE:To evaluate lower extremity neuromotor function (LENF) and short-term ambulatory potential following fetal myelomeningocele (fMMC) closure. METHODS:Retrospective chart review of 54 children that underwent fMMC closure at our institution prior to the NIHCD-MOMS trial. Neonatal LENF was compared to predicted f...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000197359
更新日期:2009-01-01 00:00:00
abstract::A consanguineous couple had 3 pregnancies in which prenatally diagnosed hydrocephalus was observed (in 1 female and 2 male fetuses). This case appears to represent an autosomal recessive form of hydrocephalus, given the consanguinity, affected sibs of both genders, and no evidence for intrauterine infection, chromosom...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000020920
更新日期:1999-07-01 00:00:00
abstract:OBJECTIVE:To assess the sonographic visualization of the pericallosal arteries in normal fetuses at 11-13 weeks of gestation using 3D ultrasound. METHODS:We prospectively enrolled women with a singleton pregnancy undergoing ultrasound at 11-13 weeks of gestation. A 3D volume with high-definition power Doppler was acqu...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000366156
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVE:To report on the initial experience in a single Brazilian university clinic of the use of fetoscopic endotracheal occlusion (FETO) to treat severe isolated congenital diaphragmatic hernia (CDH). METHODS:The inclusion criteria for FETO for this prospective study were isolated CDH and intrathoracic herniation ...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000314617
更新日期:2011-01-01 00:00:00
abstract::This report describes a fetus with a large multiloculated cystic liver mass. Two small abdominal cysts were seen on ultrasound at 19 weeks of gestation but the patient was referred to us at 23 weeks, after the mass had grown to 8.0 x 5.6 x 7.0 cm, displacing intra-abdominal organs, heart and diaphragm. There was a sma...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章,评审
doi:10.1159/000082439
更新日期:2005-03-01 00:00:00
abstract::Microbial invasion and growth in amniotic fluid play an important role in infectious perinatal morbidity and mortality. In order to determine the influence of amniocentesis (ACT) on intra-amniotic infection development, we performed a study of 239 complete microbiological examinations of amniotic fluid specimens obtai...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000263904
更新日期:1994-01-01 00:00:00
abstract::Cystic adrenal masses are unusual in the fetus. The most common diagnosis for adrenal cyst is hemorrhage. We report 2 cases of cystic neuroblastoma diagnosed prenatally by ultrasound. In each case, diagnosis was confirmed in the neonatal period first by scintigraphy, then by histology. Differential diagnosis and manag...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000263946
更新日期:1994-07-01 00:00:00
abstract::We report a patient with a dichorionic triplet pregnancy complicated by Quintero stage IV twin-twin transfusion syndrome, presenting with hypertension and severe edema at 19 weeks of gestation. Sonography revealed one set of female twins with poly-/oligohydramnios sequence, the recipient twin showing hydropic changes,...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000106348
更新日期:2007-01-01 00:00:00
abstract:OBJECTIVE:To report the incidence of fetal and maternal complications after selective fetoscopic laser surgery for twin-to-twin transfusion syndrome (TTTS). METHODS:A total of 150 cases of TTTS were treated from January 2004 to June 2009 (period 1, 2004-2006, 62 cases; period 2, 2007 to June 2009, 88 cases). Fetal com...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000336227
更新日期:2012-01-01 00:00:00
abstract:OBJECTIVE:To evaluate the sequential combination of ultrasound screening for fetal aneuploidy at 11-14 weeks with maternal biochemistry at 12-14 and 15-18 weeks of gestation. METHODS:A prospective study including 1,656 women, with a singleton pregnancy booked before 13 weeks of gestation. Nuchal translucency (NT) thic...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000020900
更新日期:1999-03-01 00:00:00
abstract:INTRODUCTION:To evaluate differences between consultants of different disciplines in the prenatal prediction of the type of postnatal surgical closure of an omphalocele. MATERIAL AND METHODS:Twenty-one images of prenatally detected omphaloceles prior to 24 weeks of gestation were included. A standardized form provided...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000430439
更新日期:2016-01-01 00:00:00
abstract::We present a 30-year-old woman with a twin pregnancy, 1 fetus displaying a small head circumference, semilobar holoprosencephaly, and cleft lip as detected by ultrasound at 23 weeks of gestation. Fetal magnetic resonance imaging confirmed the diagnosis of semilobar holoprosencephaly. The other twin, however, had an ap...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000103302
更新日期:2007-01-01 00:00:00
abstract::The objectives of the study were to assess the ability of a fetal pulse oximeter to measure the fetal oxygen saturation (SPO2) continuously during labor and to assess the correlation between readings of fetal pulse oximetry and cord blood gases at birth. The Nellcor N-400 Fetal Oximeter was used in 62 women prospectiv...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000264277
更新日期:1996-01-01 00:00:00
abstract::The current interest in early amniocentesis as a possible alternative to chorion villus sampling has driven many centres to attempt cell culture from first trimester amniotic fluid. This study examines the cellular content of 125 amniotic fluid specimens collected between 8 and 18 weeks of gestation and shows that the...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000263628
更新日期:1991-01-01 00:00:00
abstract:OBJECTIVE:The objective of this study was to determine the potential of human embryonic stem (hES) cells to provide an in vitro model of human extraembryonic endoderm development. METHODS:The hES cell line HES-2 was propagated in Dulbecco's modification of Eagle's medium (DMEM) in the presence of 20% fetal calf serum ...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000076701
更新日期:2004-05-01 00:00:00
abstract:OBJECTIVE:To assess the risk for preeclampsia (PE) by maternal characteristics, uterine artery pulsatility index (Ut-PI), mean arterial pressure (MAP), serum placental growth factor (PlGF) and soluble fms-like tyrosine kinase-1 (sFlt-1) at 30-33 weeks' gestation. METHODS:This was a screening study in singleton pregnan...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000362518
更新日期:2014-01-01 00:00:00
abstract:OBJECTIVE:To determine the effect of shipping blood in Streck blood collection tubes (BCT) prior to processing on cell-free DNA (cf-DNA) levels. METHODS:Blood was collected in ethylenediaminetetraacetic acid (EDTA) and BCT tubes from 10 pregnant women carrying male fetuses. One set of each tube for each subject was pr...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000335020
更新日期:2012-01-01 00:00:00
abstract:OBJECTIVE:The authors conducted a retrospective study of obstetric and genetic data, obstetric problems, and pregnancy outcome by investigating 149 pregnancies of patients who received genetic counselling because of hemophilia A or B over a 20-year period. METHODS:In cases with a heterozygous mother, fetal sex was det...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000066378
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND:Chronically compromised uterine perfusion may lead to placental insufficiency and subsequent intrauterine growth restriction (IUGR). Various therapeutic approaches (e.g. vasodilators, low-dose aspirin, intravenous glucose infusion, and hemodilution) are often of limited efficacy. Local anesthetics have been ...
journal_title:Fetal diagnosis and therapy
pub_type: 临床试验,杂志文章
doi:10.1159/000083907
更新日期:2005-05-01 00:00:00
abstract:INTRODUCTION:The aim of this study was to determine if laterality of an absent umbilical artery (AUA) is associated with specific sonographic findings, chromosomal defects or postpartum birth defects. MATERIALS AND METHODS:In this retrospective cohort study, ultrasound reports and medical records of patients who recei...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000338133
更新日期:2012-01-01 00:00:00
abstract::Congenital absence of aortic valve (AAV) is a rare cardiac anomaly associated with high mortality. We present 2 prenatally diagnosed cases of AAV. In both cases, fetal echocardiography showed no aortic valve tissue and free aortic regurgitation. At 24 weeks' gestation, case 1 showed a hypoplastic hypocontractile left ...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章,评审
doi:10.1159/000362386
更新日期:2015-01-01 00:00:00
abstract:OBJECTIVES:To compare the DELFIA Xpress and Quantikine ELISA placental growth factor (PlGF) immunoassay platforms by analysing the same set of early first-trimester maternal serum samples from cases with trisomy 21 and euploid controls. METHODS:Thirty-seven trisomy 21 cases and 243 euploid control serum samples, drawn...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000336661
更新日期:2012-01-01 00:00:00
abstract:OBJECTIVE:To analyze the evolution of the management of delivery and neonatal care in a population of children with correctable malformations born in Parisian maternity hospitals during the period 1985-1994. METHODS:Data were collected by the Paris Registry of Congenital Anomalies from 400,000 births recorded in Paris...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000264471
更新日期:1997-07-01 00:00:00
abstract:OBJECTIVE:To report our results of the measurement of the amniotic fluid pressure in twin-to-twin transfusion syndrome before and after amniodrainage and the separate measurement in the cavity of the stuck twin and the recipient, respectively, in 2 cases. METHOD:Six patients with severe TTS underwent therapeutic amnio...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000020980
更新日期:2000-03-01 00:00:00
abstract::Twin anemia-polycythemia sequence (TAPS) is a rare condition which may occur either spontaneously in uncomplicated monochorionic twin pregnancies or may develop after laser treatment in twin-twin transfusion syndrome. TAPS is characterized by a large intertwin discordance in hemoglobin levels without discordance in am...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000346413
更新日期:2013-01-01 00:00:00
abstract:OBJECTIVES:The aims of this study were to gain some insight with regard to the safety of the coelocentesis procedure and, to determine pH, pCO2, and base excess status of the extracoelomic fluid 40 days after fertilization. METHODS:Twenty-eight timed-mated baboons from the breeding colony of the Biological Resource La...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000020850
更新日期:1998-07-01 00:00:00
abstract::Congenital cardiac diverticula are transmural localized protrusions within the free wall of the ventricles. Right ventricular diverticula are rarely diagnosed during the fetal period, and due to their rarity, their natural history remains unclear. We present a case of prenatal diagnosis of right ventricular diverticul...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章,评审
doi:10.1159/000196815
更新日期:2009-01-01 00:00:00
abstract:OBJECTIVE:We reviewed women with previable spontaneous premature rupture of membranes (sPPROM) in whom an amniopatch was performed and compared their pregnancy outcomes with a conservative management group. METHODS:Amniopatch, an amnioinfusion of autologous platelet concentrate followed by cryoprecipitate, was perform...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000342418
更新日期:2013-01-01 00:00:00
abstract:OBJECTIVE:The aim was to study the predictive value and feasibility of fetal scalp lactate microsampling in the management of non-reassuring fetal status during labor. METHODS:A prospective observational study was conducted on cord blood gas samplings from 7,617 singleton and cephalic deliveries at > or =37 weeks of g...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章
doi:10.1159/000262281
更新日期:2010-01-01 00:00:00
abstract::Thoraco-amniotic shunting was performed in 51 singleton pregnancies for decompression and chronic drainage of fetal pleural effusions (n = 47), pericardial effusion (n = 1), or pulmonary cysts (n = 3). Five fetuses had chromosomal defects and in 4 the parents elected termination of pregnancy. All 18 non-hydropic fetus...
journal_title:Fetal diagnosis and therapy
pub_type: 杂志文章,评审
doi:10.1159/000263586
更新日期:1990-01-01 00:00:00