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Embryo transfer can be done at day two or day three, or later in the blastocyst stage, which was first performed in 1984. [1] Factors that can affect the success of embryo transfer include the endometrial receptivity, embryo quality, and embryo transfer technique.
Prior to my undergoing an embryo transfer, doctors found that scar tissue had developed in my uterus that needed to be cleaned out using a standard procedure called a hysteroscopy, which they did ...
A comparison of day two and day three transfers indicated that this would not adversely affect pregnancy rates. The worry of embryos arresting was so high that some transfers took place in the early hours of day four so that the embryos were removed from culture as soon as possible. There were many evenings at the Hammersmith when a transfer ...
Embryo culture until the blastocyst stage confers a significant increase in live birth rate per embryo transfer, but also confers a decreased number of embryos available for transfer and embryo cryopreservation, so the cumulative clinical pregnancy rates are increased with cleavage stage transfer. [40] Transfer day two instead of day three ...
The embryo becomes embedded in the endometrium in a process called implantation. In most successful pregnancies, the embryo implants 8 to 10 days after ovulation. [7] The embryo, the extra-embryonic membranes, and the placenta are collectively referred to as a conceptus, or the "products of conception".
Postpartum infections, also historically known as childbed fever and medically as puerperal fever, are any bacterial infections of the reproductive tract following childbirth or miscarriage. Signs and symptoms usually include a fever greater than 38.0 °C (100.4 °F), chills, lower abdominal pain, and possibly bad-smelling vaginal discharge.
Repeated implantation failure (RIF) is the repeated failure of the embryo to implant onto the side of the uterus wall following IVF treatment. [1] Implantation happens at 6–7 days after conception and involves the embedding of the growing embryo into the mothers uterus and a connection being formed. [2]
An implanted embryo is detected by the presence of increased levels of human chorionic gonadotropin (hCG) in a pregnancy test. [3] The implanted embryo will receive oxygen and nutrients in order to grow. For implantation to take place the uterus must become receptive. Uterine receptivity involves much cross-talk between the embryo and the ...