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Embryo Freezing is a newly developed ART procedure to increase the chances of pregnancy or to keep the unused embryos from a previous IVF cycle safe for future use. The cryopreservation technology has improved significantly in IVF with Embryo Freezing Centres in New york city in the last few years to provide better results in pregnancy and live birth rates.
During IVF or ICSI treatment, a number of eggs are fertilized and some of them are transferred into a woman’s uterus in the first cycle of treatment. The remaining embryos are kept for the next cycle in case of failure in pregnancy. These good quality embryos are frozen and preserved in a specially designed laboratory for future use, research or donation. In IVF with Embryo Freezing Centres in New york city, experienced embryologists inside a state-of-the-art laboratory perform the procedure of freezing the embryos efficiently.
In most cases of IVF, excess good quality embryos are preserved by a method of cryopreservation for use in subsequent IVF cycles. These embryos are frozen at any stage from the time it is fertilized to the blastocyst stage in which the embryos are five to six days old. Embryos are preserved in cryoprotectant fluid and frozen in liquid nitrogen at -196°C.
During IVF treatment, eggs extracted from a woman’s ovary are fertilized in the lab with her partner’s sperms. The process encourages fertilization of a number of eggs, which develop into embryos. Some of these embryos are transferred in the uterus to assist pregnancy. Excess good quality embryos are kept for subsequent cycles, which are preserved, by freezing or cryopreservation.
The embryos are kept in special containers in an advanced laboratory facility. This procedure allows infertile patients to save time and money on the next cycle of IVF treatment, as women do not have to go through egg retrieval procedures or take medications. If a woman fails to conceive in her first try, the infertility specialists begin the next cycle of embryo transfer, during which the remaining frozen embryos are thawed and prepared.
Generally, some couples choose to cryopreserve their embryos as they have a desire to become pregnant at a later time. Other reasons for embryo freezing may include cancer treatment, increasing age or risk of injury.
There are two methods of freezing embryos:
These frozen embryos are effectively suspended in time, therefore, can be stored for indefinite periods. At this state, all biological activity within the embryos is paused, including cell growth or expiration. When required, embryos are slowly thawed and soaked in defrosting fluids to remove cryoprotectants and to restore water within cells. The longest duration for which, an embryo stayed frozen and was successfully used resulting in a healthy pregnancy was 19 years.
Monitoring frozen embryos are very important to maintain the quality. In IVF with Embryo Freezing Centres in New york city, the tanks that contain frozen embryos are monitored 7 days a week. Each tank is physically inspected for leaks, failure or contamination. The nitrogen in the tank is also checked regularly to maintain a certain temperature since it evaporates continuously.
IVF with Embryo Freezing Centres in New york city also uses electronic tank monitoring sensors to ensure that tanks perform to specifications. Devices attached to the tank detect any rise in temperature or drop in the level of liquid in the tank. Sensors are connected to a telephone alarm system that alerts hospital staff in case of an emergency.
Before embryo transfer is performed, there are a few steps and medications the doctor may follow:
Patients can Perform Additional Transfer Cycle. Frozen embryos can be used for repeated transfer cycles if the fresh transfer is unsuccessful, thus increasing the possibility of pregnancy. It provides an option for another cycle without taking ovarian stimulation medication or going through another egg retrieval procedure. The development of vitrification methods in IVF with Embryo Freezing Centres in New york city has resulted in outstanding outcomes, with more and more patients achieving pregnancy from a single stimulated egg retrieval cycle.
In IVF with Embryo Freezing Centres in New york city, Preimplantation genetic screening (PGS) is also performed to look for abnormalities in chromosome number, and other deformities that are likely to result in implantation failure or miscarriage.
Vitrified embryos have a high survival rate and reproductive potential for many years. The standard storage period for embryos is normally ten years although there are records of women preserving their embryos for more than 20 years. Women can preserve their eggs at an early age and go for FET (frozen embryo transfer) in the future when a decision to expand a family is taken.
As a woman’s fertility starts to decrease after the age of 35 years, therefore, it is recommended to freeze embryos in the prime reproductive years i.e. when the female’s age is between 20 to 30 years. At this age, women have the best quality of eggs in more quantities. As the women ages, the number of eggs decreases along with cellular integrity. This is why women in her 40s only have five percent chance of becoming pregnant. Poor lifestyle or hereditary factors can cause fertility to weaken even at an earlier age; therefore, it is always better to freeze embryos at an early age.
Success rates of pregnancy using frozen embryos are now much better due to development in medical technology. Advanced methods of egg retrieval, IVF treatments and egg freezing techniques are introduced in IVF with Embryo Freezing Centres in New york city to achieve fertilization and pregnancy. Birth rates are slightly higher for fresh transfers in women under 35 years but the rate of women aged 35 to 37 years are equal. For women aged over 37 years, birth rates with frozen embryos are actually higher than the rates achieved with fresh embryos. This may be because the embryos were created using eggs collected when the woman was at the prime stage of reproduction.
Below are comparisons of birth rates with frozen embryo transfer and fresh embryo transfer considering the age of a woman.
It is observed and concluded in many studies that the vitrification process ensures more than 90 percent survival rates. In the same study, it is proved that the success rate of pregnancy using frozen embryos is found to be better than those with fresh ones are. Frozen embryo transfer results in:
In IVF with Embryo Freezing Centres in New york city, most of the cost is accounted for maintaining the tanks, monitoring the embryos and for managing the inventory of stored embryos. Only embryologists look after the condition of the embryos and handle liquid nitrogen to maintain a suitable temperature. Only IVF with Embryo Freezing Centres in New york city has a special permit from the city for the use of liquid nitrogen in the premises. IVF with Embryo Freezing Centres in New york city costs around Rs.14,700 to Rs.32,900 for six months.
Patients from all over the world visit IVF with Embryo Freezing Centres in New york city for their best-in-class services. These centres are reliable, less expensive and have advanced facilities to perform procedures related to IVF and embryo freezing. Doctors and embryologists also have experience in performing the most suitable techniques in embryo freezing and transfer.
If you are looking for the best IVF with Embryo Freezing Centres in New york city to freeze embryos contact Elawoman. We can discuss your condition with a specialized doctor and recommend you the best hospital to cryopreserve and store your embryos.
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