In an In vitro fertilization, a technique is used where the sperms and the embryos are frozen and thawed and then used in the infertility treatment. The lady does not have to undergo a simulation which is done using fertility drugs for an embryo transfer when the frozen embryos are used. Cryopreservation is a method to treat past infertility problems. The collection of sperm during a microsurgery and freezing it for an IVF cycle avoids any additional surgery.
Cryopreservation of the embryo
Embryo Cryopreservation or unfertilized egg can be an important part of the IVF treatment process for most of the patients. When one uses the method, it helps to preserve the unfertilized embryos or oocytes and the fertilized divided embryos for future use.
Benefits
The benefits of embryo Cryopreservation and oocyte are many. When the method is used in the IVF treatment process, it helps to increase the likelihood of pregnancy. It also allows repetition of the IVF cycles as it allows the process to be repeated from the same egg groups that were originally taken for treatment.
Around 10 to 30 eggs can be recovered during an IVF cycle from the ovary. Not all of these eggs will be fit for Cryopreservation but there will be definitely multiple eggs that will allow the couple to go for multiple attempts. This may also help to offer successful results without the use of any fertility drugs. The process also reduces the chances of another process of egg retrieval. The factors that affect the number of embryos transferred are age, number of eggs available and some factors that are specific to each patient. Cryopreservation also makes a single embryo transfer an option. Multiple embryo transfer is recommended when there may be health complications that may tend to make conception difficult.
Embryo Cryopreservation or oocyte also helps to increase the chances of any future pregnancy when it may not be possible to conceive otherwise. For example, women who have been diagnosed with cancer may opt to preserve their oocytes before they go for a cancer treatment because the operation may tend to affect the fertility. Cryopreservation may also be beneficial when the women plans to have a baby in the future and she is concerned about ageing and its impact on the quality of her egg.
Vitrification
This is a technique which means freeing. In this method the eggs and the embryos are frozen for use in the IVF procedure. As per latest numbers the success rate of frozen embryos is at par with that of fresh embryos. When one opts for Vitrification, the patient can delay the transfer to the future and the result will be as a fresh embryo transfer. When one opts for advanced Vitrification, the transfer can also be spaced out which will offer every embryo a better chance of achieving pregnancy.
When a standard infertility treatment is performed then hormones are used in irder to stimulate multiple egg development. These eggs are retrieved and fertilized in the laboratory there may be chances of more embryos being created that can be transferred to the uterus of the women,if these extra ebryos are of a good quality then they may be frozen or cyropreseved to be transfer at a later date. This process allows an additional transfer of embryo without the patient having ti undergo the expense and the inconvenience of a complete IVF cycle.
