Bakharev V A, Karetnikova N A, Iantovskiĭ Iu R
Akush Ginekol (Mosk). 1990 May(5):32-5.
Potentials of the most common chorionic sampling methods have been examined: transcervical biopsy (TCB) (n-65), transcervical aspiration (TCA) (n-63) and transabdominal aspiration (TAA) (n-10). These procedures were done in outpatient settings at 6-12 week's gestation with sonographic guidance using accepted methodologies. TCB and TCA yielded 14.3 mg and 27.5 mg of a sample, respectively. The chorionic sample obtained with TAA was at best 3 mg. The incidence of successful chorionic sampling was 92.4% for TCB, 76.1% for TCA and 80.0% for TAA. Spontaneous abortions occurred after TAA (7.9%) and combined transcervical procedures (10%). These results suggest a potential of TCB and TCA in first-trimester prenatal diagnosis, but TCB has a number of advantages. TAA is a promising technique which, however, requires further sophistication.
经宫颈活检（TCB）（n = 65）、经宫颈抽吸（TCA）（n = 63）和经腹抽吸（TAA）（n = 10）。这些操作在门诊环境中于妊娠6至12周时，在超声引导下采用公认的方法进行。TCB和TCA分别获取了14.3毫克和27.5毫克的样本。通过TAA获得的绒毛样本最多为3毫克。TCB的绒毛取样成功率为92.4%，TCA为76.1%，TAA为80.0%。TAA（7.9%）和联合经宫颈操作（10%）后发生了自然流产。这些结果表明TCB和TCA在孕早期产前诊断方面具有潜力，但TCB有许多优势。TAA是一种有前景的技术，然而，它需要进一步完善。
