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Updated: Jul 15, 2026
Establishment of an Embryo Implantation Model In Vitro
Published on: June 21, 2024
[Relation between embryo transfer distance from the fundus and the pregnancy rate]
Hong Li1, Fu-qi Xing, Song Quan
1Center for Reproductive Medicine, Department of Obstetrics and Gynaecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China. lihong6918@263.net
Objective:
To investigate the association of embryo transfer distance from the fundus (TDF) with the clinical pregnancy rate (PR).
Methods:
Between January 2005 and September 2006, ultrasound (US)-guided embryo transfer was conducted 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 were observed among those 4 groups, but PR was the highest in the group with TDF >or=2 cm, and the lowest in the group 1 cm. The rate of early spontaneous abortion was higher in the group with TDF >or=2 cm.
Conclusion:
TDF variation does not produce significant difference in PR, but the distance of 1.0-2.0 cm is recommended.
