Specific process of IVF protocol cycle
In vitro fertilization (IVF) is a commonly used method to treat infertility. The specific process of IVF program cycle includes women's ovulation guidance, egg collection and in vitro fertilization, embryo culture and testing, embryo transfer and fixed pregnancy.
One aspect: women's ovulation guidance
Before the start of the IVF program cycle, the doctor will carry out a series of physical examinations on women to confirm that the ovulation function is normal, and determine the ovulation cycle through ultrasonic examination, blood hormone detection and other methods. If women have ovulation disorders, doctors may use drugs to regulate ovulation.
On the basis of normal ovulation, doctors will develop personalized ovulation guidance plans according to women's specific conditions. The use of ovulation promoting agents (such as gonadotropin) can increase the development of follicles and the number of eggs, so as to improve the success rate of in vitro fertilization.
The cycle of ovulation usually lasts 7-14 days. During this period, doctors will regularly check the development of follicles to determine the optimal size and number of follicles, so as to determine the time of egg collection.
Aspect 2: Egg collection and in vitro fertilization
Egg collection is a key step in the whole IVF protocol cycle. After the female ovary develops to an appropriate period, the doctor will collect eggs in the operating room. Generally, local anesthesia or general anesthesia is used for operation.
The doctor punctures the ovary with a slender needle guided by ultrasound to extract the eggs and egg fluid. These eggs will be immediately sent to the laboratory for in vitro fertilization. In the laboratory, doctors place sperm and eggs in a petri dish to promote the fertilization of eggs and the formation of embryos.
After the eggs are fertilized, doctors will select suitable embryos for transplantation according to the quality and development of the embryos.
Aspect 3: Embryo culture and testing
After in vitro fertilization, embryos need to be cultured and developed in the laboratory. Usually, embryos will be stored in petri dishes for 2-6 days until the best time for transfer is reached.
During the cultivation process, the doctor will regularly check the development of the embryo and evaluate the quality of the embryo. According to the appearance and cell division of the embryo, doctors can preliminarily judge the development potential of the embryo.
In addition, chromosome testing (PGS/PGT) can be carried out according to the needs of patients and the suggestions of doctors to screen out embryos with genetic abnormalities, improve the success rate of transplantation and reduce the risk of genetic diseases.
Aspect 4: Embryo transfer and fixed pregnancy
Embryo transfer is the last step in the IVF protocol cycle. Embryo transfer is usually a non-invasive procedure that does not require general anesthesia.
The doctor will use a catheter to carefully place the embryo in the uterine cavity, usually in the vagina by retrograde method. The whole process will not cause obvious pain or discomfort. After transplantation, if the embryo is successfully implanted into the endometrium, pregnancy may occur.
After transplantation, women need to continue to use estrogen, progesterone and other drugs for luteal support cycle to promote embryo implantation and early embryonic development. About two weeks later, the patient can conduct blood or urine HCG test to confirm whether the pregnancy is successful.
summary
The specific process of IVF program cycle includes women's ovulation guidance, egg collection and in vitro fertilization, embryo culture and testing, embryo transfer and fixed pregnancy. This process needs to be closely monitored and controlled to ensure the safety and smooth progress of patients. Although everyone's situation may be different, the general process is basically similar.
