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Difference Between 3 Day And 5 Day Embryo Transfer. There was no statistically significant difference between day 3 and day 5 transfer regarding positive human chorionic gonadotrophin rates 70 versus 67 clinical pregnancy rates 61 versus 51 implantation rates 44 versus 37 twinning rates 42 versus 41 and rates of early pregnancy loss 15 versus 29. Day 5 had a higher ongoing pregnancy rate compared to Day 3 684 vs 594 No difference in miscarriage rates. The success rate of embryo vs. It is however true that the number of triplets is reduced by use of the day 5.
However usually the embryos are transferred in two specific stages. For those not clear on the concept of day 2 3 or 5 let me step back for a second and explain. If we compare day 3 or day 5 we will have no chances for blastocysts most times. It doesnt seem that long but its true what they say its the longest 2 weeks of your life. Pregnancy rates with day 3 vs. May be difficult to choose the best embryo and may freeze nonviable embryos.
However usually the embryos are transferred in two specific stages.
Pregnancy rates with day 3 vs. The main advantage of blastocyst transfers is that the implantation rates are higher. Back in 1996 we were doing mainly day 2 embryo transfers. However usually the embryos are transferred in two specific stages. Currently most IVF labs can culture embryos to blastocyst for fresh transfer or biopsy for genetic testing. Success Rates for Each Embryo Transfer Option.