TRANSCERVICAL CHORIONIC VILLUS ASPIRATION FOR PRENATAL DIAGNOSIS IN EARLY PREGNANCY
- VernacularTitle:经宫颈活取早孕绒毛作产前诊断方法的研究
- Author:
Hong MA
- Publication Type:Journal Article
- Keywords:
chorionic villi;
aspiration;
B-mode ultrasound;
early pregnancy.
- From:Journal of Xi'an Jiaotong University(Medical Sciences)
1982;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
The technique of transcervical chorionic villus sampling (TCVS) was studied in 155 cases for selected abortion in the first trimester of pregnancy, and 3 kinds of suction tube were compared. The ultrasonic mothod for the aspiration of chorionie villus sampling is more effective than the blind aspiration, giving a success rate of 99%. The modified suction tube with a stainless steel wire along-side as a supporter is simpler than the Portex's tube, giving a oneshot success rate of 85%. This shows that the TCVS is more satisfactory if the embryo is implanted into the posterior wall of the uterus. With the B-mode scanner, it gives the highest one-shot success rate and the amount of the obtained tissue is the greatest in the 7th and 8th weeks of gestation. Twenty cases were followed up for 3 to 7 days after the procedure before selective abortion. No complications occurred during and after the TCVS, indicating that this technique ia simple, safe and reliable.
