Learn about embryo freezing techniques at Vinmec Times City

The article is professionally consulted by MSc, BS. Nguyen Thi Nhu Trang - Reproductive Support Center - Vinmec Times City International General Hospital. The doctor has strengths and experience in performing specialized techniques in the IVF Lab such as ICSI, biopsies for preimplantation genetic diagnosis, thawing embryos, oocytes...

Many assisted reproductive centers are often worried that the success rate of frozen embryo transfer will be lower than that of fresh embryos because too much freezing and then thawing may cause death or reduce embryo quality. However, now at IVF Vinmec Times City, we perform embryo freezing by vitrification method, which has achieved very good results, greatly reducing this worry.

In the process of performing IVF, after ovarian stimulation and oocyte retrieval, this is the time when the treating doctor and the patient will agree to choose the technique of transferring fresh embryos or transferring frozen embryos into the uterus of the patient. woman.
When applying cryopreserved embryo transfer, the embryos after forming will be evaluated for quality and selected to be placed in a special embryo freezing medium and stored for a long time in liquid nitrogen with an extremely cold temperature of -196 degrees C.
The pregnancy efficiency between fresh embryo transfer and frozen embryo transfer is similar. However, the current trend of infertility treatment often favors frozen embryo transfer over fresh embryo transfer because of advantages such as:
Frozen embryos are very beneficial in cases where the woman's body has not recovery due to fear and anxiety after egg retrieval, unstable psychology... In case a woman is at risk or suffers from ovarian hyperstimulation, uterine fluid, and unsuitable uterine lining or Progesterone test results on trigger day > 1.5 ng/ml..., fresh embryos cannot be transferred but frozen embryos must be transferred, so embryo freezing is a necessity to do immediately. Embryo freezing helps families have more opportunities to transfer embryos many times with residual embryos, thereby increasing the cumulative pregnancy rate after embryo transfers. In addition, the technique of frozen embryo transfer saves treatment costs, limits the number of times of ovarian stimulation, and helps ensure women's health. Frozen embryo transfer also helps couples have more time to prepare, arrange work, life and money... When embryos are frozen, a woman will have time to prepare the complete endometrial lining. best, creating optimal conditions to receive embryos for implantation.

Currently, in addition to the classic IVF (in vitro fertilization) method, ICSI (intracytoplasmic sperm injection), day 5 embryo transfer technique, support for embryo escape... Vinmec Reproductive Center Times City has performed embryo freezing using a new technique - vitrification.
The outstanding advantage of this method of embryo freezing is that the freezing time is fast, the embryo survival rate after thawing is over 95%, the pregnancy rate from embryo freezing is 50%, almost twice as much as other methods. old. Embryos that undergo vitrification have no intracellular ice crystal formation (while the slow cooling method can lead to ice crystals inside when lowered from -50 to -150 degrees Celsius – this is the main cause of the problem). major cause of membrane rupture or cell rupture).
Therefore, with the technique of freezing embryos by vitrification, embryos are protected more safely, when thawed, they will have a high survival rate. This is one of the safe and highly effective methods today, used in cryopreservation of embryos as well as eggs and sperm.

Reproductive Support Center - Vinmec Times City International General Hospital is the leading center in the implementation of assisted reproductive methods in general and IVF in particular.
Here, customers will receive accurate examination and advice on embryo freezing services with a team of leading experts in the field of Obstetrics and Gynecology in the country and internationally. Vinmec doctors are all trained in countries with leading medical backgrounds in the world (USA, Singapore, Japan, Australia...): Doctor, Dr. Jean Clement Sage, Master, Doctor Le Thi Phuong Dr. capable of synchronously and comprehensively deploying today's most advanced assisted reproductive techniques.