In vitro fertilization (IVF) is a fertility treatment that helps women with infertility get pregnant. It is an Assisted Reproductive Technology (ART).
It is a complex procedure that takes a lot of time and can be emotionally difficult for women and their partners. Having support can be helpful throughout the process.
What is IVF?
IVF is a type of assisted reproductive technology (ART) that can help couples who aren’t able to conceive naturally. It involves using medicines and surgery to help sperm fertilize an egg, then placing the embryo inside a woman’s uterus.
During an IVF treatment, you’ll be prescribed fertility medication to prevent premature ovulation and prepare the lining of your uterus for implantation. You might also be given birth control pills to keep your menstrual cycle regular and maximize the number of mature eggs that will be retrieved from your ovaries.
In addition, you’ll receive hormone injections that stimulate the ovaries to produce multiple eggs. Then, you’ll undergo a procedure called egg retrieval that removes eggs from your ovaries one at a time with a special needle.
Embryos are then transferred to the uterus after several days of fertilization in the lab. This process is called a “cycle” and usually lasts four to six weeks. 시험관아기
Egg Retrieval
Egg retrieval is a key part of the IVF process, whether you are going through your own cycle or donating eggs to another patient. Understanding how it works can help you set your mind at ease during the procedure.
The egg retrieval process begins when the doctor stimulates a woman’s ovaries using medications. This helps follicles reach the right size to be retrieved.
Once the follicles reach 16 mm in size, most women are ready to undergo the procedure. The doctor will perform an injection to finalize the growth and maturation of the follicles.
During this injection, the doctor is also monitoring your blood estrogen levels. This helps them know when your ovaries are at the right stage for egg retrieval, which is 35 and a half hours after the hCG injection.
During the egg retrieval process, the doctor inserts a needle through your vagina into each of your follicles and retrieves the eggs from each of them. The doctor then sends the fluid containing each of your eggs to the laboratory for fertilization or freezing.
Vitro Fertilization
The process of fertilization involves the fusion of the membranes of two gametes, one from each species. The resulting egg cell is called a zygote, and it contains 46 chromosomes, 23 from the female and 23 from the male.
The sperm cell then breaks through the outer membrane of the egg (the zona pellucida) and fuses to it, digesting it using an enzyme. Once the sperm and egg have fused, the sperm’s nucleus enters the egg looking for its genetic material.
After fertilization, the zygote begins dividing rapidly and growing into a ball of cells that moves down the fallopian tube toward the uterus. If the ball of cells attaches to the lining of the uterus, it is called implantation.
Embryos usually implant about 3-4 days after fertilization, although it can take up to 14 days. In some cases, the embryo may not implant at all. 난임시술
Vitro Fertilization – Embryo Transfer
Embryo transfer is the final step of an IVF cycle. This is a big moment, and one that can bring about a lot of emotions.
During this procedure, your doctor will use a catheter to deliver the embryos into your uterus. This is done using ultrasound guidance.
There are several factors that affect the success of an embryo transfer, such as the age and health of the woman, the number of eggs retrieved and the type of IVF treatment.
In general, women under 38 are recommended to have two or three transferred (one if she has plenty of eggs), and older women should have 3 or 4.
A day 3 embryo transfer is the preferred choice for CNY patients because this ensures that the embryo gets to the best possible place to grow and develop. However, it’s important to remember that not all embryos survive until day 5.