Abstract:
OBJECTIVE:To determine the effect of needle and syringe size on the amount of tissue obtained at chorionic villus sampling METHODS:Two needle sizes, 18 and 20 gauge, and two syringe sizes 5 mL and 20 mL, were used to assess samples from term post-partum placentae. Each of the four combinations was tested by 25 aspirations. The placentae were divided into 100 grid spaces and each grid space was randomly allocated to a needle/syringe combination. The resulting samples were cleaned to separate the chorionic villi (CV), centrifuged and then weighed. RESULTS:Significantly more tissue was obtained with an 18-g needle compared with a smaller 20-g needle (median weight difference 1.5 mg, 95% CI 0.8-2.3 mg). More tissue was also obtained with the larger 20-mL syringe though the impact of the syringe size was less than that of the needle size (median difference 0.8 mg, 95% CI 0-1.6). CONCLUSION:A larger syringe and needle size yields a larger quantity of chorionic villi from the post-partum term placenta.
journal_name
Prenat Diagnjournal_title
Prenatal diagnosisauthors
Cochrane L,Ainscough M,Alfirevic Zdoi
10.1002/pd.752subject
Has Abstractpub_date
2003-12-30 00:00:00pages
1049-51issue
13eissn
0197-3851issn
1097-0223journal_volume
23pub_type
临床试验,杂志文章,随机对照试验abstract::Our laboratory has received 1375 early amniotic fluid (EA) specimens during the past 5-year period for cytogenetics analysis. The gestational ages of the EA specimens were less than 14 weeks as estimated by ultrasound. The average volume of specimen received was 16 ml. Specimens were typically received in two collecti...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970130903
更新日期:1993-09-01 00:00:00
abstract::We have investigated the ability of high-resolution proton NMR spectroscopy to provide a biochemical constituent screening of human amniotic fluid (AF). Proton NMR spectra were obtained at 300 MHz on AF from patients undergoing amniocentesis in the mid-trimester. Only AF from normal pregnancies (normal fetal karyotype...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970130609
更新日期:1993-06-01 00:00:00
abstract:OBJECTIVE:Cell-free DNA (cfDNA) screening for aneuploidy was clinically introduced in 2011. We aim to focus on the follow-up information from a single tertiary center undergoing genome-wide cfDNA screening to evaluate this technology. METHOD:A total of 32 431 cases were retrospectively reviewed. The screening was perf...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.5328
更新日期:2018-09-01 00:00:00
abstract:OBJECTIVE:The objective of this article is to describe the diagnostic significance of prenatal identification of dilated supra-pineal recess (SPR) in cases of ventriculomegaly. METHOD:A retrospective study, based on neurosonography and magnetic resonance imaging, of a series of five prenatal cases referred to our inst...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.4323
更新日期:2014-04-01 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:OBJECTIVES:To develop a reliable and specific technique for rapid prenatal diagnosis of Down syndrome. METHODS:High throughput real-time PCR technique was used to measure the DSCR3 gene dosage of genomic DNAs from uncultured amniocytes of fetuses, lymphocytes of trisomy 21 syndrome patients, and normal people, compare...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.968
更新日期:2004-09-01 00:00:00
abstract::A single base substitution in exon 10 of the glucocerebrosidase gene was detected in families affected by Gaucher disease (GD) type III. This mutation, which results in the substitution of proline for leucine in position 444 of glucocerebrosidase, has been shown to result in type III GD in a Swedish population. Three ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970120706
更新日期:1992-07-01 00:00:00
abstract::Two cases of sirenomelia are described, detected in the 14th and 16th weeks of gestation by transvaginal ultrasonography. A hypothesis for the aetiology of sirenomelia and its associated anomalies is discussed. ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970150211
更新日期:1995-02-01 00:00:00
abstract::A pregnant woman with indeterminate Duchenne muscular dystrophy (DMD) carrier status, but with DMD diagnosed in her deceased brother (unavailable for study), presented for prenatal diagnosis, intending to continue the pregnancy only if proven unaffected with DMD with near absolute certainty. Creatine kinase (CK) assay...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970101104
更新日期:1990-11-01 00:00:00
abstract::Three monoclonal antibodies (MAbs) against trophoblast (GB17, GB21, and GB25) and flow cytometry were used to sort trophoblast-like cells (TLCs) from peripheral blood of pregnant women. Sorted TLCs were processed for electron microscopy and fetal DNA amplification of the Y-specific sequences from mothers carrying male...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970111007
更新日期:1991-10-01 00:00:00
abstract:OBJECTIVE:A common concern of utilizing prenatal advanced genetic testing is that a result of uncertain clinical significance will increase patient anxiety. However, prenatal ultrasound may also yield findings of uncertain significance, such as 'soft markers' for fetal aneuploidy, or findings with variable prognosis, s...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.4680
更新日期:2015-12-01 00:00:00
abstract:OBJECTIVE:Outcomes from in vitro fertilization (IVF)/intrauterine insemination (ICSI) cycles for patients who underwent preimplantation genetic testing for monogenic/single gene (PGT-M) and structural chromosome rearrangements (PGT-SR) patients were reviewed. Patients pursuing PGT-M and PGT-SR often do not have pre-exi...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.5496
更新日期:2019-09-01 00:00:00
abstract::Enlargement of the subarachnoid spaces can be seen in the following conditions: communicating hydrocephalus, brain atrophy and benign enlargement of the subarachnoid spaces. These disorders may begin in utero. There are no established normograms for the fetal subarachnoid spaces. This study was conducted in order to d...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/1097-0223(200011)20:11<890::aid-pd945>3.0.
更新日期:2000-11-01 00:00:00
abstract::We report on the prenatal diagnosis of ring chromosome 15 in a fetus with increased nuchal fold and intrauterine growth restriction (IUGR). A 27-year-old woman gravida 2, para 1 had normal maternal serum screen tests in the early second trimester of the index pregnancy. Fetal nuchal fold thickening up to 8 mm was inci...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.168
更新日期:2001-12-01 00:00:00
abstract:BACKGROUND:Despite the large impact of ultrasonographic and biochemical markers on prenatal screening, the ability to accurately diagnose Down syndrome (DS) is still limited and better diagnostic testing is needed. METHODS:Plasma from 8 women carrying a DS foetus and 12 with non-DS foetuses matched for gestational age...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.2040
更新日期:2008-08-01 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 whether abnormal levels of first-trimester maternal serum free β-hCG and PAPP-A are associated with significant copy number variants (CNVs) on chromosomal microarray analysis (CMA). METHODS:Retrospective cohort of singleton prenatal CMA studies (n = 2880). Cases with an abnormal karyotype, benig...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.5350
更新日期:2018-11-01 00:00:00
abstract::Sacrococcygeal teratoma (SCT) is one of the most common tumors in newborns with a birth prevalence of up to 1 in 21,700 births. Routine fetal anomaly screening programs allow for prenatal diagnosis in many cases. Fetal ultrasound with Doppler evaluation and more recently magnetic resonance imaging may be used to docum...
journal_title:Prenatal diagnosis
pub_type: 杂志文章,评审
doi:10.1002/pd.2781
更新日期:2011-07-01 00:00:00
abstract:OBJECTIVES:To determine the cost effectiveness of a universal prenatal screening program for alpha- and beta-thalassaemia. METHODS:We retrospectively reviewed our program from 1998 to 2002, and calculated the direct and indirect costs of various components. RESULTS:18,936 women were screened at our prenatal clinic an...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1035
更新日期:2004-11-01 00:00:00
abstract::Larsen syndrome is characterized by multiple congenital joint dislocations and flattened facies. Some cases have been familial, with both autosomal dominant and recessive patterns of inheritance. Reports of a form of Larsen syndrome, lethal in the neonatal period, are reviewed. We present a family in which recurrence ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970110403
更新日期:1991-04-01 00:00:00
abstract:OBJECTIVE:We aimed to study the role of placental pathology in the prediction of preeclampsia (PE) recurrence. METHODS:The medical records and pathological placental reports of all women diagnosed with PE, during 2008-2015, were reviewed. The study population was divided according to the outcome of their subsequent pr...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.4918
更新日期:2016-10-01 00:00:00
abstract:OBJECTIVES:To add to the knowledge of chromosomal abnormalities associated with Dandy-Walker malformation. METHODS:Molecular cytogenetic analyses of a chorionic villus sampling and of an amniocentesis of a fetus with Dandy-Walker malformation and abnormal somatic development. RESULTS:All cells examined showed a 47, X...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.933
更新日期:2004-08-01 00:00:00
abstract:OBJECTIVE:To determine the detection rates of whole-genome microarray technology compared to targeted microarray analysis for chromosome abnormalities in prenatal samples submitted for diagnostic testing. METHODS:Microarray analysis using either whole-genome bacterial artificial chromosome (BAC)-based and oligonucleot...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.2371
更新日期:2009-12-01 00:00:00
abstract:OBJECTIVES:The aims of this study were (1) to assess the accuracy of estimated fetal weight (EFW) in twins and (2) to assess the accuracy of sonographic examination to predict birth weight discordance (BWD). METHODS:We retrospectively analyzed collected data on twin pregnancies between 2004 and 2007. All twin pregnanc...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.2469
更新日期:2010-04-01 00:00:00
abstract:OBJECTIVE:Are first trimester serum pregnancy-associated plasma protein-A (PAPP-A), nuchal translucency (NT) and crown-rump length (CRL) prognostic factors for adverse pregnancy outcomes? METHOD:Retrospective cohort, women, singleton pregnancies (UK 2011-2015). Unadjusted and multivariable logistic regression. OUTCOM...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.5069
更新日期:2017-07-01 00:00:00
abstract:OBJECTIVES:To assess the prenatal ultrasound detection rates (DR) of neural tube defects (NTDs) and its evolution over the 1992 to 2006 period in the pregnant population of the city of Barcelona. METHODS:Data on the population-based register of birth defects were used to assess the evolution of the prenatal DR for iso...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.2863
更新日期:2011-12-01 00:00:00
abstract::The pregnancy outcome of 1936 women who had transcervical chorionic villus sampling (CVS) with a flexible biopsy forceps was evaluated. Follow-up until 4 weeks after delivery was 99.4 per cent. Various patient- and procedure-related risk factors for spontaneous loss (fetal or neonatal death) were analysed using stepwi...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.1970150904
更新日期:1995-09-01 00:00:00
abstract:OBJECTIVE:To study associations of first trimester cell-free fetal DNA levels (in this paper referred to as cell-free placental DNA (cfpDNA) levels) and preeclampsia (PE), pregnancy-induced hypertension (PIH), gestational diabetes (GDM) and spontaneous preterm birth (sPB). METHOD:A nested case-control study was conduc...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.4940
更新日期:2016-12-01 00:00:00
abstract::Although congenital mesoblastic nephroma (CMN) is a rare benign congenital renal tumor, it is the most common solid renal tumor in the newborn period. The most common presentation of congenital mesoblastic nephroma is polyhydramnios, and only one case with prenatal fetal hydrops has been previously reported. Prenatal ...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:10.1002/pd.727
更新日期:2003-11-01 00:00:00
abstract::Comparative genomic hybridization (CGH) is a FISH-related technique used to assess global chromosomal aberrations in a variety of human tumours. Recently CGH has been applied to cytogenetic analysis of fresh frozen fetoplacental tissues. Here we report the application of CGH to paraffin-embedded placental samples. Ten...
journal_title:Prenatal diagnosis
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00