胚胎移植距子宫腔基底距离与妊娠率之间的关系

Relation between embryo transfer distance from the fundus and the pregnancy rate

目的研究胚胎移植内管尖距宫腔基底距离(TDF)与妊娠率(PR)之间的关系。方法回顾性研究南方医院妇产科生殖医学中心2005年1月～2006年9月超声引导下取卵周期胚胎移植610例。通过腹部B超测量TDF,依据TDF分为4组,分析TDF与妊娠率及异常妊娠的关系。结果不同TDF之间的妊娠率无显著差异(P>0.05),大于2cm组妊娠率最高,小于1cm组最低,但大于2cm组早期自然流产率较高。结论不同TDF的妊娠率没有显著性差异,推荐TDF为1.0～2.0cm。

Objective To investigate the association of embryo transfcr distance from the fundus （TDF） with the clinical pregnancy rate （PR）. Methods Between January 2005 and September 2006, ultrasound （US）-guidcd embryo transfer was conductcd in 610 women. TDF was measured by transabdominal US according to which the subjects were divided into 4 groups. The association between TDF and PR or between TDF and abnormal pregnancy was analyzed. Results No significant differences in PR wcrc observed among those 4 groups, but PR was the highest in the group with TDF ≥ 2 cm, and the lowest in the group 〈1 cm. The rate of early spontaneous abortion was higher in the group with TDF ≥2 cm. Conclusion TDF variation does not produce significant difference in PR, but the distance of 1.0-2.0 cm is recommended.