Prenatal Medicine Unit, Department of Obstetrics and Gynaecology, University of Modena, Modena, Italy.
Prenat Diagn. 2011 Sep;31(9):897-900. doi: 10.1002/pd.2801. Epub 2011 Jun 27.
To evaluate the efficacy of using the transvaginal probe to manipulate the uterus and change the position of the trophoblast, and to simplify access to the chorionic villus under difficult conditions.
One thousand five hundred and thirty-nine procedures were performed in our centre in 1524 pregnant women from September 2006 to September 2009. In 90 of these, a difficult access to the trophoblast was observed and uterine manipulation under continuous ultrasound guidance with a double needle technique, was applied to obtain the sample. Of these, 86 samples were taken from singleton pregnancies and 4 from two bichorionic twin pregnancies
One thousand five hundred and thirty-nine transabdominal chorionic villus sampling (TA-CVS) procedures were conducted on 1524 pregnant women. As many as 1449 were performed without manipulation with the transvaginal probe and in 90 cases the manipulation was carried out. In 89 cases, access to the trophoblast was difficult and the uterus was manipulated, which enabled an adequate TA-CVS to be performed with a single aspiration. In one case, TA-CVS was not performed due to significant pelvic pain in a patient with a fixed, retroflexed uterus and a previous history of endometriosis.
Uterine manipulation with the transvaginal probe may be a useful solution in cases where TA-CVS is limited by difficult access to the trophoblast.
评估经阴道探头操作子宫改变胎盘位置以简化在困难条件下获取绒毛的方法。
2006 年 9 月至 2009 年 9 月，在我们中心对 1524 名孕妇进行了 1539 次经阴道绒毛取样（TA-CVS）操作。其中 90 例观察到胎盘难以触及，应用连续超声引导下双针技术进行子宫操作以获取样本。其中 86 例来自单胎妊娠，4 例来自双绒毛膜性双胎妊娠。
对 1524 名孕妇进行了 1539 次经腹绒毛取样（TA-CVS）操作。其中 1449 次未进行经阴道探头操作，90 次进行了操作。在 89 例中，胎盘难以触及，对子宫进行了操作，使单次抽吸即可进行充分的 TA-CVS。在 1 例中，由于固定后屈子宫和既往子宫内膜异位症病史的患者出现明显骨盆痛，未进行 TA-CVS。
对于胎盘难以触及而限制 TA-CVS 的情况，经阴道探头操作子宫可能是一种有用的解决方案。
