Day 2 embryo transfer (ET) and day 3 ET afford similar reproductive outcomes in the poor responder.
A retrospective review of 237 initial, fresh nondonor IVF cycles in which all embryos generated during the cycle were transferred on either day 2 (n = 109) or day 3 (n = 128) were evaluated with regards to reproductive outcomes. Patients who underwent a day 2 ET had similar conception (18% vs. 16%; relative risk [RR], 1.1; 95% confidence interval [CI], 0.64-1.95), clinical pregnancy (13% vs. 16%; RR, 0.8; 95% CI, 0.44-1.55), implantation (6% vs. 7%; RR, 0.9; 95% CI, 0.50-1.68), and live-birth (10% vs. 16%; RR, 0.7; 95% CI, 0.32-1.29) rates as those who underwent a day 3 ET.
George Washington University Medical Faculty Associates, Washington, DC 20037, USA. mdayal@mfa.gwu.edu
Molina B
MB
Dayal
David
D
Frankfurter
Ioanna
I
Athanasiadis
Douglas
D
Peak
Anil
A
Dubey
Paul R
PR
Gindoff
D000328:Adult; D002970:Cleavage Stage, Ovum; D004624:Embryo Transfer / Q000379:methods* / Q000706:statistics & numerical data; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D011247:Pregnancy; D011256:Pregnancy Outcome / Q000453:epidemiology; D018873:Pregnancy Rate; D012189:Retrospective Studies; D012307:Risk Factors; D013997:Time Factors