Decrease in preovulatory serum estradiol is a valuable marker for predicting premature ovulation in natural/unstimulated in vitro fertilization cycle

• Main Authors: Xuefeng Lu (Author), Shuzin Khor (Author), Qianqian Zhu (Author), Lihua Sun (Author), Yun Wang (Author), Qiuju Chen (Author), Ling Wu (Author), Yonglun Fu (Author), Hui Tian (Author), Qifeng Lyu (Author), Renfei Cai (Author), Yanping Kuang (Author)
• Format: Book
• Published: BMC, 2018-11-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Abstract Background Premature ovulation occurs at a high rate in natural-cycle in vitro fertilization (IVF), and cycle cancellation further hampers the overall efficiency of the procedure. While lower levels of estradiol (E2) are observed in preovulatory follicles, it is unclear whether declines in...