Endometrial Receptivity
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1.The transvaginal ultrasound examination reveals a normal size and shape of the uterus. 2.The endometrial preparation protocol involves either hormone replacement therapy (HRT), pituitary down-regulation with hormone replacement therapy, or a combined pituitary down-regulation and hormone replacement therapy protocol. 3.There are = 2 high-quality embryos available for transfer.
Exclusion criteria
Exclusion criteria: 1.Uterine cavity abnormalities, including endometrial polyps, uterine fluid accumulation, and uterine tuberculosis, which can affect the intrauterine environment. 2.Untreated uterine malformations, such as bicornuate uterus or unicornuate uterus. 3.Malignant ovarian tumors. 4.Hydrosalpinx (blockage or fluid accumulation in the fallopian tubes). 5.Incomplete data collection cycles or loss to follow-up cycles.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Endometrial thickness;Endometrial volume;Endometrial morphology;Endometrium Junction Zone;Subendometrial blood flow;Uterine arteries;Endometrium peristalsis; | — |
Countries
China
Contacts
Peking University Shenzhen Hospital