Pregnancy Rate in Single Step Versus After Load Technique of Embryo Transfer: a Retrospective Analysis
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 8,127
- 主要终点
- clinical pregnancy rate
研究概览
简要总结
The primary outcome of the study is to determine if a difference in terms of pregnancy rate exists between direct and afterload embryo transfer (ET) techniques.
The secondary end points include the evaluation of the difficult transfer rates.
详细描述
The study database includes all the single fresh and frozen (G5-G6) blastocyst transfers performed at Humanitas Fertility Centre between 1st January 2016 and 31th December 2021 by using the direct and afterload protocols.
Any blastocysts that underwent preimplantation genetic testing will be excluded from the analysis, as well as embryos derived from gamete donation or those imported from other centers.
Data are gathered using a specific internal web-based database, which allows to organize, store and readily retrieve information about patients and IVF cycle.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Retrospective
入排标准
- 年龄范围
- 18 Years 至 43 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 否
入选标准
- •IVF procedure
- •Fresh and frozen single blastocyst transfer
排除标准
- •Any blastocysts that underwent PGS testing
- •Embryos derived from gamete donation
- •Embryos imported from other centers
结局指标
主要结局
clinical pregnancy rate
时间窗: 6 years
number of pregnancies diagnosed by ultrasonographic visualization of one or more gestational sacs x 100 divided by the number of embryo transfer cycles
次要结局
- difficult transfer rate(6 years)