Pregnancy rate is not improved by delaying embryo transfer from days 2 to 3

Eur J Obstet Gynecol Reprod Biol. 2003 Apr 25;107(2):176-9. doi: 10.1016/s0301-2115(02)00400-1.

Abstract

Objective: To compare the outcome of assisted reproduction in day 2 versus day three embryo transfer.

Design: Prospective study.

Participants: A total of 927 consecutive embryo transfers for IVF and ICSI cycles including 626 embryo transfers on day 2 and 301 on day 3.

Intervention: IVF and ICSI.

Outcome measure: Clinical pregnancy rate.

Results: There is no significant difference in the pregnancy rate between ET on day 2 (50.9%) and ET on day 3 (50.5%).

Conclusion: Embryo transfer could be done on days 2 or 3 according to the convenience of the patient and the medical team.

Condensation: Embryo transfer could be done on days 2 or 3 according to the convenience of the medical team with similar results.

MeSH terms

  • Adult
  • Culture Techniques
  • Embryo Implantation
  • Embryo Transfer*
  • Embryo, Mammalian / physiology
  • Female
  • Fertilization in Vitro
  • Humans
  • Pregnancy
  • Pregnancy Rate*
  • Pregnancy, Multiple
  • Prospective Studies
  • Time Factors