Characteristics of FET and pregnancy outcomes
In FET cycles, except for larger uterine diameter and higher proportion
of severe dysmenorrhea in ultra-long protocols, other baseline data of
embryos originating COS cycles were similar in ultra-long, long and
antagonist protocols. However, baseline differences between short and
other protocols still had statistical differences, such as age, AFC and
AMH. The pregnancy outcomes of FET indicated that no matter which origin
of embryo, IR, CPR, MR and LBR had no statistical difference in FET
cycles. So far, there was no other similar comparisons.