Coroleu B, Carreras O, Veiga A, Martell A, Martinez F, Belil I, Hereter L, Barri P N
Service of Reproductive Medicine, Department of Obstetrics and Gynaecology, Institut Universitari Dexeus, Pso. Bonanova 67, 08017 Barcelona, Spain.
Hum Reprod. 2000 Mar;15(3):616-20. doi: 10.1093/humrep/15.3.616.
Between October 1998 and January 1999, we examined the influence of ultrasound guidance in embryo transfer on pregnancy rate in 362 patients from our in-vitro fertilization (IVF)-embryo transfer programme. These patients were prospectively randomized into two groups: 182 had ultrasound-guided embryo replacement, and 180 had clinical touch embryo transfer. There were no statistically significant differences between the two groups with respect to age, cause of infertility and in the characteristics of the IVF cycle. The pregnancy rate was significantly higher among the ultrasound-guided embryo transfer group (50%) compared with the clinical touch group (33.7%) (P < 0.002). Furthermore, there was also a significant increase in the implantation rate: 25.3% in the ultrasound group compared with 18.1% in the clinical touch group (P < 0.05). In conclusion, ultrasound assistance in embryo transfer significantly improved pregnancy and implantation rates in IVF.
1998年10月至1999年1月期间，我们在体外受精（IVF）-胚胎移植项目中，对362例患者进行了超声引导下胚胎移植对妊娠率影响的研究。这些患者被前瞻性随机分为两组：182例行超声引导下胚胎置换，180例行临床触摸法胚胎移植。两组在年龄、不孕原因及IVF周期特征方面无统计学显著差异。超声引导下胚胎移植组的妊娠率（50%）显著高于临床触摸组（33.7%）（P<0.002）。此外，着床率也有显著提高：超声组为25.3%，临床触摸组为18.1%（P<0.05）。总之，超声辅助胚胎移植显著提高了IVF的妊娠率和着床率。
