Chorionic villus sampling (CVS)

妊娠

孕妇:可能的症状与妊娠综合征

绒毛膜取样 (CVS)
这项检查从绒毛膜提取细胞,也就是从胎盘的指状突起上提取一些细胞。绒毛膜取样具有早期诊断的优势。如果有某些遗传紊乱风险存在,该项检查通常在妊娠第10-12周进行。
在超声波引导下,用针头可以提取绒毛膜样本。针头可以通过腹部刺入,或在妊娠较早时期通过阴道刺入。样本结果分析需要一个月的时间。本项检查并不是一概地不会引起孕妇流产,所以,有的孕妇宁愿不选择这种检查。

Pregnancy

The Woman During Pregnancy: Possible Problems and Complications

Chorionic villus sampling (CVS)
This procedure takes cells from the chorionic villi, i.e. tiny fingerlike projections on the placenta. It is usually performed between the 10th and 12th week of pregnancy if there is a risk of certain genetic disorders. Chorionic villus sampling has the advantage of allowing an early diagnosis.
The sample is taken though a needle which is guided by ultrasound. The needle may be inserted through the abdomen or, very early in the pregnancy, through the vagina. Analyzing the results takes about one month. The sampling is not entirely unproblematic for the expectant mother who may run a slightly higher risk of miscarriage than would otherwise be the case. Therefore, some women prefer not to have this test.

[Course 2] [Description] [How to use it] [Introduction] [Conception] [Pregnancy] [Beginning] [Development] [During Pregnancy] [Birth] [Infertility] [Contraception] [Abortion] [Additional Reading] [Examination]