Human beings have 23 pairs of chromosomes with a total of 46 (two copies of each pair). Health and development issues appear if there is a missing or extra chromosome. When there is an additional copy of a chromosome (i.e. three copies instead of two), it is called a trisomy.
NACE TM is a complete prenatal test to detect anomalies in chromosomes 21, 18, and 13 (Down, Edwards, and Patau syndromes). It also detects the most common anomalies in the sexual chromosomes X and Y (Except for twin gestations).
NACEPlus TM has the same characteristics as the NACE test, but is an extended version that also incorporates the detection of chromosome 9 and 16 trisomies, which are closely related with spontaneous abortions in the first trimester, and identifies six microdeletions which are associated with major genetic syndromes. The NACEPlus TM test is recommended for all women who want to rule out the presence of chromosomal abnormalities in the fetus without putting their pregnancy at risk. The test is especially suitable for women with a high risk of chromosomal abnormalities following 1st trimester screening (hormone analysis and ultrasound scan), or who have had a previous Down’s syndrome pregnancy.
Both tests detect fetuses with chromosomal anomalies with very high precision.
Aster IVF offers two genetic testing services for pregnant women.
The NACE test is valid in single and twin* gestations and NACE Plus is validated for single pregnancies.
*In these cases it does not provide information on the gender of the fetuses.