cj00
October 4th, 2011, 09:07 PM
Hi Everyone,
Trying to decide between Day 3 vs Day 5 biopsy. Here's what I've heard, would welcome comments:
Day 3 pros: More embryos to biopsy, Day 5 transfer ideal
Day 3 cons: Some false positives, potential damage to the embryo during biopsy
Day 5 pros: More accurate biopsy, biopsied cells taken from outer trophectoderm layer which may harm embryo less than Day 3 biopsy
Day 5 cons: Some embryos may not make it to Day 5 biopsy (not progress either b/c of abnormality or cell culture environment not ideal), have to do a FET or transfer Day 6 which may be too late for implantation
Trying to decide between Day 3 vs Day 5 biopsy. Here's what I've heard, would welcome comments:
Day 3 pros: More embryos to biopsy, Day 5 transfer ideal
Day 3 cons: Some false positives, potential damage to the embryo during biopsy
Day 5 pros: More accurate biopsy, biopsied cells taken from outer trophectoderm layer which may harm embryo less than Day 3 biopsy
Day 5 cons: Some embryos may not make it to Day 5 biopsy (not progress either b/c of abnormality or cell culture environment not ideal), have to do a FET or transfer Day 6 which may be too late for implantation