Frozen-thawed embryo transfer in modified natural cycles: a retrospective analysis of pregnancy outcomes in ovulatory women with vs. without spontaneous luteinizing hormone surge

• Main Authors: Hongjuan Ye (Author), Liya Shi (Author), Xinxin Quan (Author), Xue Xue (Author), Ying Qian (Author), Hui Tian (Author), Songguo Xue (Author), Lihua Sun (Author)
• Format: Book
• Published: BMC, 2022-11-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Abstract Background Timing of frozen embryo transfer (FET) in natural endometrial preparation cycles is often based on luteinizing hormone (LH) surge. However, some patients do not show spontaneous LH surge despite follicular maturation. The objective of this study was to evaluate the impact of spon...