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Successful pregnancy rates achieved with day 4 embryo transfers
Josh C Skorupski1, Daniel E Stein, Uchenna Acholonu
1Division of Reproductive Endocrinology and Infertility, Department of Obstetrics and Gynecology, St. Luke's-Roosevelt Hospital Center, Columbia University College of Physicians and Surgeons, New York, New York 10019, USA. josh_skorupski@hotmail.com
Objective:
To assess the success of day 4 embryo transfers (ETs) following IVF at one institution.
Design:
Retrospective analysis.
Setting:
A university hospital IVF program.
Patient(S):
Two hundred nondonor, fresh IVF cycles.
Intervention(S):
None.
Main Outcome Measure:
Outcomes of IVF. Outcome assessments after day 4 ETs included rates of implantation, clinical pregnancy, and singleton and multiple live births.
Result(S):
The overall live-birth rate was 54.4%. Implantation rates were highest in younger age groups, and similar in patients 35-40 years of age. Pregnancy and live-birth rates were similar across all age groups up to age 40 years. Multiple gestations were highest in women < or =40 years of age.
Conclusion:
Acceptable pregnancy rates can be achieved with day 4 ETs.

