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What is In Vitro Fertilization-Embryo Transfer?

Posted by on July 17, 2015

happy coupleThis is probably one of the most popular procedures when it comes to reproductive assistance technologies. Some people even refer to this as the test tube baby procedure because the fertilization occurs in a petri dish. This process is necessary when there is an infertile couple that wants to have a child. There are many fertility treatment centers in Phoenix AZ, but IVF Phoenix holds the most prestige with its long line of well-qualified infertility doctors and specialists. IVF-ET started out treating women with fallopian tube failures but now has grown to help with many other complications.

IVF Phoenix’s treatment consists of a four step process as follows. The first stage incorporates a technique called superovulation in which medications are used to induce the ovaries over production of follicles or eggs. To monitor the stage, there are multiple blood draws and ultrasounds to overlook how the follicles and uterine lining are doing. When it reaches maturity, a trigger shot of Human Chorionic Gonadotropin is administered into the ovaries.

When 36 hours has passed since the trigger shot, the second stage begins. This is when the eggs/oocytes are retrieved.  A vinegar douching is done the night before removing the egg so that there are no vaginal bacteria. After a night of fasting, she is then prepped for conscious sedation. The doctor then retrieves the eggs from within the follicles which is seen through ultrasounds. Directly after capturing the egg a sperm sample is prepared to be mixed together, either thawed from a donor or drawn from the partner. Fertilization is allowed to occur naturally within the petri dish and incubated for about 18 hours. The embryo is then analyzed under a telescope to assure normal fertilization.

The embryo culturing stage is the third stage and sometimes may take up to five days. The day that the egg is captured is referred to as day zero. Day three should hold around 8 cells in the embryo and day five should hold blastocysts. When the proembryos have formed, they can either be incubated to develop further or transferred into the uterus. This is up to the couple and the fertility treatment center’s discretion.eggs

The final step of this process is the actual transfer of the embryos to the uterus, inside the uterine cavity. This is done by inserting a small tube into the cervix. The number of embryos inserted is established due to age or day of embryo development. If there are extra embryos then these can be saved for future procedures. The success rates are fairly low depending on the age and the fertility specialists procedures, but they are improving as technologies improve.

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