What are the Risks of Chorionic Villus Sampling?
Normal fetal growth
Chorionic sampling
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- Chorionic sampling involves puncturing the placental tissue with a thin needle, removing an appropriate amount of chorionic tissue, and performing a cell or genetic examination.
- Name
- Chorionic sampling
- category
- Special inspection
- Normal fetal growth
- Abnormal results: chromosomal abnormalities, genetic abnormalities, structural abnormalities, and other fetal abnormalities caused by external factors People who need to be checked: those who are at high risk after the first pregnancy screening, elderly women who are worried that the fetus may be abnormal, have had chromosomal abnormalities in the previous pregnancy, or that one of the couple has a chromosomal abnormality
- Unsuitable population: Any woman with a gestational age of more than 12 weeks from the last menstrual period; a woman with a vaginal infection; a woman with an abnormal uterine shape, such as with uterine fibroids or a bicornuate uterus; Before inspection: Pay attention to rest. During the examination: relax and actively cooperate with the doctor.
- The subject was lying supine with both knees flexed and supported by foot pedals or knee pedals; under the guidance of an ultrasound scan, the doctor sent the catheter through the vagina and cervix into the placental villi, and a small amount of villi was drawn with an empty needle tube for examination.
- Congenital hyperammonemia in children