Amniocentesis procedure is performed by puncturing the sac in an area away from the fetus and extracting about 15 to 20 ml of amniotic fluid, containing fetal flaked cells.
WHERE AND HOW MAY THE AMNIOCENTESIS PROCEDURE BE DONE?
The procedure is performed at the surgery.
There are no pre-examination preparations (fasting or empty bladder). We recommended that you take prophylactic antibiotics three days before the procedure. Upon termination of the preliminary trans-abdominal ultrasound examination, we then sterilize the area of the abdomen. Afterwards, with the aid of ultrasound-guidance, the physician uses a needle to remove the amniotic fluid from the sac.
The technique is very painful and the extraction takes about 10 minutes.
The technique is not so painful and takes approximately 10 minutes. After the ultrasound, the patient will be kept under observation for a couple of hours, and then released with a medical recommendation of three days of rest.
WHEN SHOULD AMNIOCENTESIS PROCEDURE BE DONE?
Starting from the 16th week of pregnancy
WHAT IS THE PURPOSE OF THE AMNIOCENTESIS PROCEDURE?
It allows you to accurately diagnose the presence of chromosomal abnormalities of the fetus (e.g., Down syndrome), the most frequent genetic diseases (fragile X syndrome, cystic fibrosis, genetic deafness, thalassemia trait, Duchenne muscular dystrophy, etc.). The amniocentesis procedure can also be used to establish genetic compatibility (paternity testing) upon request. It allows you to diagnose with certainty chromosomal abnormalities of the unborn child (e.g., Down syndrome or trisomy 21), the most frequent genetic diseases (fragile X syndrome, cystic fibrosis, genetic deafness, thalassemia, Duchenne muscular dystrophy, etc.) and upon request, genetic compatibility (paternity test).
WHAT ARE IS THE RISK OF A SPONTANEOUS ABORTION DURING THE PROCEDURE?
Following recent studies it is believed that the risk of miscarriage resulting in the execution of the amniocentesis is 0.5%, such as that of Chorionic Villus Sampling.
The Chorionic Villus Sampling is performed when the risk of miscarriage is about 3%, whereas when you perform the amniocentesis procedure the risk falls to 1%. Therefore it can be assumed that, in proportion, the risk resulting from the performance of the amniocentesis is much greater.