Lawrenz B, Blockeel C. Avoiding weekend frozen embryo transfer in modified natural cycles: is it possible?
Reprod Biomed Online 2024;
49:103775. [PMID:
38519272 DOI:
10.1016/j.rbmo.2023.103775]
[Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 12/01/2023] [Indexed: 03/24/2024]
Abstract
In this era of the freeze-all strategy, the prevalence of frozen embryo transfer (FET) cycles is increasing rapidly. Although still quite often used, the hormone replacement therapy cycle to prepare a FET should now belong to the past, unless strictly necessary. This raises questions about possible flexible protocols for the preparation of an FET cycle in a (modified) natural cycle. In this viewpoint, an overview of the different options is discussed, stressing the importance of the corpus luteum.
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