First trimester ultrasound tests alone or in combination with first trimester serum tests for Down's syndrome screening

SK Alldred, Y Takwoingi, B Guo… - Cochrane Database …, 1996 - cochranelibrary.com
Background Down's syndrome occurs when a person has three, rather than two copies of
chromosome 21; or the specific area of chromosome 21 implicated in causing Down's …

First-trimester sonographic screening for Down syndrome

FD Malone, ME D'Alton - Obstetrics & Gynecology, 2003 - Elsevier
Screening for Down syndrome is an important part of routine antenatal care. The most
common screening method in the United States involves the assessment of a combination of …

Second trimester serum tests for Down's Syndrome screening

SK Alldred, JJ Deeks, B Guo… - Cochrane Database …, 1996 - cochranelibrary.com
Background Down's syndrome occurs when a person has three copies of chromosome 21‐
or the specific area of chromosome 21 implicated in causing Down's syndrome‐rather than …

First and second trimester serum tests with and without first trimester ultrasound tests for Down's syndrome screening

SK Alldred, Y Takwoingi, B Guo… - Cochrane Database …, 1996 - cochranelibrary.com
Background Down's syndrome occurs when a person has three copies of chromosome 21
(or the specific area of chromosome 21 implicated in causing Down's syndrome) rather than …

First trimester serum tests for Down's syndrome screening

SK Alldred, Y Takwoingi, B Guo… - Cochrane Database …, 1996 - cochranelibrary.com
Background Down's syndrome occurs when a person has three, rather than two copies of
chromosome 21; or the specific area of chromosome 21 implicated in causing Down's …

[HTML][HTML] From Down syndrome screening to noninvasive prenatal testing: 20 years' experience in Taiwan

SWS Shaw, CP Chen, PJ Cheng - Taiwanese Journal of Obstetrics and …, 2013 - Elsevier
Down syndrome is the most common autosomal chromosome aneuploidy. The prenatal
Down syndrome screening protocol has been known in Taiwan for the past 20 years. The …

Meta-analysis of first trimester Down syndrome screening studies: free β-human chorionic gonadotropin significantly outperforms intact human chorionic gonadotropin …

MI Evans, DA Krantz, TW Hallahan, RS Galen - American journal of …, 2007 - Elsevier
OBJECTIVE: The purpose of this study was to compare free β and intact human chorionic
gonadotropin in first trimester screening with pregnancy-associated plasma protein-A and …

Nasal bone hypoplasia: is it a common finding amongst chromosomally normal fetuses of southern Chinese women?

SF Wong, H Choi, LC Ho - Gynecologic and obstetric investigation, 2003 - karger.com
Objective: To assess the incidence of nasal hypoplasia among fetuses of southern Chinese
women. Methods: This prospective observational study was conducted at Princess Margaret …

Pregnancy outcomes in unselected singleton pregnant women with an increased risk of first-trimester Down's syndrome

SSA Liu, FK Lee, JL Lee, MS Tsai… - Acta obstetricia et …, 2004 - Taylor & Francis
Background. The purpose of this study was to assess outcomes in pregnancies with a
positive screen of first-trimester combined test (nuchal translucency, pregnancy-associated …

Low maternal serum levels of pregnancy-associated plasma protein-A during the first trimester are associated with subsequent preterm delivery with preterm …

BQ She, SC Chen, FK Lee, ML Cheong… - Taiwanese Journal of …, 2007 - Elsevier
OBJECTIVE: To assess the relationship between the first-trimester maternal serum
pregnancy-associated plasma protein-A (PAPP-A) levels and pregnancies complicated by …