Abstract:
:Recent reports suggest an increased incidence of chromosomal abnormalities in pregnancies with amniotic fluid-cell culture failure. We retrospectively reviewed the cytogenetic results of 14,165 amniotic fluid samples processed in our laboratory from 1987 to 1996. Ninety-eight per cent of the samples were obtained before 24 weeks' gestation, mainly because of advanced maternal age; 2 per cent were obtained after or at 24 weeks because of the ultrasonographic finding of fetal structural defects. Amniotic-fluid-cell culture failure occurred in 62 cases (0.44 per cent). Culture failure was more common in samples obtained after or at 24 weeks' gestation (10 per cent) than in those obtained before 24 weeks (0.27 per cent) (P < 0.001, chi-square test). This difference was also observed when the results were analysed according to the cases with known normal or abnormal karyotypes. The frequency of culture failure did not differ significantly between the groups with normal and abnormal karyotypes. We conclude that amniotic-fluid-cell culture failure is more common in advanced pregnancy with an ultrasonographic finding of fetal structural defects and is not associated with a higher incidence of chromosomal abnormalities.
journal_name
Prenat Diagnjournal_title
Prenatal diagnosisauthors
Lam YH,Tang MH,Sin SY,Ghosh Asubject
Has Abstractpub_date
1998-04-01 00:00:00pages
343-7issue
4eissn
0197-3851issn
1097-0223pii
10.1002/(SICI)1097-0223(199804)18:4<343::AID-PD273journal_volume
18pub_type
杂志文章abstract::This study was undertaken in an attempt to determine the significance of elevated maternal serum human chorionic gonadotropin (MShCG), in the presence of an otherwise normal screen with respect to fetal malformations, chromosomal aberrations, and pregnancy outcome. Targeted ultrasound findings and perinatal outcome of...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:
更新日期:1997-11-01 00:00:00
abstract::Operator experience is considered to influence the safety and success of medical procedures. We performed a retrospective survey to assess learning curves in chorionic villus sampling (CVS). Data of 2081 consecutive women, in whom CVS was carried out in a tertiary care university hospital for prenatal diagnosis, were ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:
更新日期:2000-03-01 00:00:00
abstract:OBJECTIVE:Complications in pregnancy are suggested to be the result of intrauterine conditions in the first trimester of pregnancy. Three-dimensional ultrasound volume measurements might give more information, compared with two-dimensional measurements. Commonly available methods for volume measurements are not suited ...
journal_title:Prenatal diagnosis
pub_type: 临床试验,杂志文章
doi:10.1002/pd.3900
更新日期:2012-08-01 00:00:00
abstract::Glutamic-oxaloacetic transaminase (GOT1) gene dosage studies were performed on uncultured amniotic cells from a fetus at risk for duplication/deficiency of 10q24 leads to qter, due to maternal translocation t(9;10)(p24;q24). Previous investigations in the same pedigree had shown triplex dosage effect of GOT1 on red bl...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970030410
更新日期:1983-10-01 00:00:00
abstract:OBJECTIVES:To compare the frequency of abnormal genetic diagnoses spanning a period before and after the availability of chromosomal microarray analysis (CMA). We hypothesised that microarray would provide additional clinically relevant information in cases of isolated hypoplastic nasal bone. METHOD:Fetuses with ultra...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.5410
更新日期:2019-01-01 00:00:00
abstract:OBJECTIVES:Clinical symptoms and ultrasound signs during pregnancy could suggest the presence of esophageal atresia (EA). However, most often EA is diagnosed postnatally. The aim of our study is to evaluate the course and outcome for prenatally and postnatally diagnosed EA. In addition, we studied the outcome of isolat...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.2466
更新日期:2010-03-01 00:00:00
abstract:OBJECTIVES:To study the clinical, emotional and moral difficulties that French midwives encounter in the labor ward while performing termination of pregnancy (TOP) for fetal abnormality. SETTING:Six public maternity hospitals located in the Ile de France region, two of which were referral centers for prenatal diagnosi...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1755
更新日期:2007-07-01 00:00:00
abstract::A predominantly triploid 69,XXY placenta was found associated with a normal 46,XX infant. Therefore, a triploid placenta is apparently capable of supporting normal fetal development. The chromosome and pathological results support the conclusion that the triploid placenta originates from a 'vanishing twin' pregnancy. ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970110705
更新日期:1991-07-01 00:00:00
abstract:OBJECTIVES:To present the prenatal diagnosis of a de novo terminal inversion duplication of the short arm of chromosome 4 and a review of the literature. CASE:An amniocentesis for chromosome analysis was performed at 33 weeks' gestation because ultrasound examination showed a female fetus with multiple abnormalities c...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1154
更新日期:2005-06-01 00:00:00
abstract::We report a case of maternal uniparental disomy 2, detected through routine screening of placental karyotypes following the finding of 'atypical' AFP/hCG levels in the second trimester, with intrauterine growth retardation (IUGR) but otherwise normal outcome at term. Although the child remained small, subsequent early...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.143
更新日期:2001-10-01 00:00:00
abstract:OBJECTIVE:To describe the prognosis of subtle findings on fetal brain imaging in pregnant women with primary CMV infection during pregnancy. METHODS:This was a retrospective study. The data included: timing of infection, amniocentesis results, imaging findings, obstetric outcome, and developmental assessment. RESULTS...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.5634
更新日期:2020-03-01 00:00:00
abstract::A case is reported of a male fetus at risk of X-linked adrenoleucodystrophy who showed a normal cultured chorionic villus cell very long chain fatty acid (VLCFA) profile but at birth exhibited grossly abnormal plasma and cultured fibroblast VLCFAs. Maternal contamination or a sample mix-up was excluded by chromosome a...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970150514
更新日期:1995-05-01 00:00:00
abstract::Trophoblast deportation is known to occur in normal human pregnancy, but it is not yet clear whether these cells routinely enter the maternal peripheral circulation and are available as a source of fetal DNA for non-invasive prenatal diagnosis of genetic disorders. To resolve this issue requires an efficient method of...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970151007
更新日期:1995-10-01 00:00:00
abstract:OBJECTIVE:To evaluate the association between echogenic appearing lungs on ultrasonographic examination of the fetus and aneuploidy. METHODS:Cases in which echogenic lungs were prospectively identified on ultrasonographic examination were collected. Other abnormal ultrasonographic findings were documented, as were pat...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1112
更新日期:2005-03-01 00:00:00
abstract::The sister of a child affected by Duchenne muscular dystrophy (DMD) was referred for genetic counselling to assess the risk of her being a carrier. Her brother had died 15 years previously at the age of 8. There were no other affected males in the family. There were no methods for DNA investigation at the time of the ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970150715
更新日期:1995-07-01 00:00:00
abstract::We present the first report of prenatally diagnosed Dandy-Walker malformation with the karyotype of partial trisomy 11 and 22 due to familial translocation t(11;22)(q23;q11) inherited in three generations. We demonstrate that the Dandy-Walker malformation can be an associated congenital malformation of supernumerary d...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/(SICI)1097-0223(199612)16:12<1137::AID-PD9
更新日期:1996-12-01 00:00:00
abstract:OBJECTIVE:To determine normal blood flow velocities across the fetal tricuspid valve (TV) at 11-13 weeks and 6 days of gestation and to examine the reproducibility of these measurements. METHODS:A prospective study involving 166 normal singleton pregnancies examined at 11-13 weeks and 6 days was carried out. Descripti...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.2556
更新日期:2010-08-01 00:00:00
abstract:OBJECTIVE:To describe brain imaging findings and outcomes in fetuses with confirmed congenital toxoplasmosis (CTX). METHODS:Physicians from Prenatal Diagnosis Units in ten Latin American countries were contacted and asked to provide data on fetuses with ultrasound findings suggestive of intrauterine infection and a po...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.2795
更新日期:2011-09-01 00:00:00
abstract:OBJECTIVE:The objective of this article is to evaluate the longitudinal changes in uterine artery Doppler pulsatility index (UtA-PI) in pregnancies complicated with early onset intrauterine growth restriction (IUGR). METHOD:Case-control study comparing UtA-PI from 20 to 34 weeks gestation in pregnancies affected by IU...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.4476
更新日期:2014-12-01 00:00:00
abstract::A child was tentatively diagnosed as having cystic fibrosis, based on neonatal presentation with severe gastrointestinal complications; the diagnosis was not confirmed biochemically and no tissues were available for DNA analysis. The mother presented in her subsequent pregnancy, and microvillar enzyme analysis of cell...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970100911
更新日期:1990-09-01 00:00:00
abstract::The purpose of our study was to assess the influence of intra-uterine insemination (IUI) on the results of maternal serum Down syndrome screening. 43 women with IUI pregnancies and 4507 healthy women who conceived were studied. Ovulation in IUI pregnancies was induced by clomiphene and/or human menopausal gonadotrophi...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/(sici)1097-0223(199911)19:11<1012::aid-pd6
更新日期:1999-11-01 00:00:00
abstract:OBJECTIVE:Fetal myelomeningocele (fMMC) surgery improves infant outcomes when compared with postnatal surgery. Surgical selection criteria and the option of pregnancy termination, however, limit the number of cases that are eligible for prenatal surgery. We aimed to quantify what proportion of cases could ultimately be...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.5390
更新日期:2019-01-01 00:00:00
abstract::Although no precise figures are available, many congenital brain lesions arise from intrauterine disruption, frequently due to obstetric complications. The most common entities include intracranial hemorrhage, ischemic lesions, thrombosis of venous vessels and infections. Accurate prenatal diagnosis is possible in man...
journal_title:Prenatal diagnosis
pub_type: 杂志文章,评审
doi:10.1002/pd.2244
更新日期:2009-04-01 00:00:00
abstract:OBJECTIVES:Prenatal screening for Down syndrome has become standard practice in many western countries. In the Netherlands, however, prenatal screening tests for congenital defects are not offered routinely. The present study aims to assess test uptake in a large, unselected population of pregnant women, and to give mo...
journal_title:Prenatal diagnosis
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1002/pd.1090
更新日期:2005-01-01 00:00:00
abstract::Coelocentesis was performed in 20 singleton pregnancies at 6-10 weeks of gestation and 2-13 days before planned termination. The control group consisted of 100 women who were also undergoing planned termination and were matched with the study group for maternal age and gestation. During the follow-up period, there wer...
journal_title:Prenatal diagnosis
pub_type: 临床试验,杂志文章
doi:10.1002/(sici)1097-0223(199710)17:10<913::aid-pd17
更新日期:1997-10-01 00:00:00
abstract::Based on 9350 pregnant Japanese women who were screened by serum triple-marker determination, accuracy of predicted risk for Down syndrome was examined using 24 Down syndrome cases detected either prenatally or postnatally. The correlation is statistically very high (r = 0.98) between the predicted risks and the preva...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:
更新日期:1998-09-01 00:00:00
abstract:OBJECTIVES:Fetal aortic valvuloplasty (FAV) for severe aortic stenosis (AS) has shown promise in averting progression to hypoplastic left heart syndrome. After FAV, predicting which fetuses will achieve a biventricular (BiV) circulation after birth remains challenging. Identifying predictors of postnatal circulation on...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.5885
更新日期:2021-01-18 00:00:00
abstract::Retinoblastoma susceptibility is an autosomal dominantly inherited cancer predisposition which also confers a life-long increased risk for various non-ocular malignancies. We developed a protocol for single cell detection of this disorder which enables its preimplantation genetic diagnosis as an alternative to prenata...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:
更新日期:1999-12-01 00:00:00
abstract:OBJECTIVE:Evaluate the results obtained from Quantitative Fluorescent (QF)-PCR and conventional karyotype analysis to determine the advantages and disadvantages of dual testing in prenatal diagnosis. METHODS:From 1 June 2006 to 1 June 2010, dual testing by QF-PCR and karyotype analysis was performed in 13,500 prenatal...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.3888
更新日期:2012-07-01 00:00:00
abstract:OBJECTIVE:The objective of the study was to evaluate the performance of first trimester combined screening in cases of placental/fetal, mosaic or non-mosaic, autosomal trisomy other than trisomy 21, 18, or 13, and in cases of aneuploidy for a marker chromosome with focus on biochemical markers. METHOD:We identified 66...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.4584
更新日期:2015-06-01 00:00:00