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The blastocysts were delayed or advanced transferred after ovulation depending on the endometrium dating in RIF group Exclusion Criteria: 1.
OBJECTIVE: To assess the ability of histological dating to discriminate between women of fertile and infertile couples.
RESULT(S): Biopsies were evaluated (301 mid and 318 late; N = 619).
Out-of-phase biopsy results poorly discriminated between women from fertile and infertile couples in either the midluteal (fertile: 49.4%, infertile: 43.2%) or late luteal phase (fertile: 35.3%, infertile 23.0%).
We have verified the Noyes criterion in natural cycle in previous study which conducting endometrial biopsies respectively on day 3, 5, 7, 9 and 11 of post-ovulation (PO 3/5/7/9/11)(unpublished data).
The clinical value of the endometrial histological dating in RIF patients in natural cycle is still to be answered.
The morphological changes observed on histology for each specific day after ovulation were described by Noyes and his colleagues in 1950.
INTERVENTION(S): Subjects underwent daily urinary LH testing.
The mucous membrane comprising the inner layer of the uterine wall; it consists of a simple columnar epithelium and a lamina propria that contains simple tubular uterine glands.