The true natural cycle frozen embryo transfer - impact of patient and follicular phase characteristics on serum progesterone levels one day prior to warmed blastocyst transfer

• Main Authors: Sezcan Mumusoglu (Author), Murat Erden (Author), Irem Yarali Ozbek (Author), Onur Ince (Author), Sandro C. Esteves (Author), Peter Humaidan (Author), Hakan Yarali (Author)
• Format: Book
• Published: BMC, 2023-09-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Abstract Background In a true-natural cycle (t-NC), optimal progesterone (P4) output from the corpus luteum is crucial for establishing and maintaining an intrauterine pregnancy. In a previous retrospective study, low P4 levels (< 10 ng/mL) measured one day before warmed blastocyst transfer in t-...