Embryo freezing is a process that permits individuals to store embryos for sometime in the future. An individual can also freeze eggs, which are not fertilized. An embryo is developed after fertilization and the cells begin to divide. Physicians can freeze and store unused embryos (fertilized eggs) created during IVF, which may include intracytoplasmic sperm injection (ICSI), using a process called cryopreservation.
Need for Embryo Freezing
- There are numerous reasons a man and woman may decide to freeze and store their embryos:
- They may feel it is a superior choice than having the additional embryos destroyed.
- It can give one more opportunity to get pregnant if the IVF cycle fails the first time. The couple won’t need to do IVF once more.
- On the off chance that the man and lady have an infant, they can utilize the embryo later to have a subsequent child.
- The woman can preserve embryos before she starts therapies, for example, for cancer, which may diminish or eliminate her odds of getting pregnant.
- The embryo could be preserved and given to another person in a donor program.
- The embryo could be preserved and given for research.
Embryo Freezing Techniques
Vitrification
Fast cooling convention (vitrification) includes media containing a higher concentration of cryoprotectants and has a moderately lot more limited freezing time. The fundamental concern when freezing an embryo is the development of ice between the cells. This can be effectively avoided by a profoundly skilled embryologist.
Slow cooling
Slow cooling includes seeding where the cryopreservation straw is physically moved by cold forceps dipped in liquid nitrogen further away from the embryo to start ice development which spreads to the rest of the solution containing the embryos. This prevents harm to the embryos. Most centers today apply vitrification for freezing embryos.
Thawing
During this method, the frozen sperm/oocytes/embryos are thawed (de-frozen) to room temperature, noticed for further development, and afterward moved into the patient’s uterus after stimulating endometrial development. At the time of embryo substitution, the straws are taken out from the liquid nitrogen and set in a water shower at room temperature before re-hydrating with unique media. Toward the finish of re-hydration, the embryos are cultured in media inside the carbon dioxide incubators and permitted to grow further either to day 2 or blastocyst prior to transfer.
Risks Involved in Embryo Freezing
Research shows that the freezing and thawing of embryos does not harm subsequent babies made through IVF. The length of time the embryo was stored does not affect IVF success rates.
With improving technology, the difference in pregnancy rates between the frozen embryos and fresh is negligible. In addition, the stimulation process with frozen embryo transfer is gentler, with hormone levels closer to normal in the woman, which may also improve pregnancy rates.
Any ice crystals formed during the slow freeze process may cause damage to an embryo while thawing. This is one of the reasons vitrification is the preferred cryopreservation technique. Research shows that there is no increase in the risk of birth defects among children born from frozen embryos compared with normal births.
Endometriosis is a condition wherein tissue like the uterine lining (endometrium) grows somewhere else in the body. Pelvic pain is the most common indication of endometriosis, yet a few women with the condition may likewise encounter infertility.
Endometriosis may develop outside of your uterus, ovaries, and tubes and even on your bladder or digestion tracts. This tissue can irritate structures that it contacts, causing pain and adhesions (scar tissue) on these organs.
Symptoms of Endometriosis
Symptoms can vary with some women not having any at all, and others having very severe pain. The most common symptoms are:
- Painful, heavy or irregular periods
- Pain in the lower abdomen, pelvis or lower back around ovulation time, but also throughout the cycle
- Ongoing pelvic pain lasting six months or longer
- Pain during or after sex
- Difficulty getting pregnant
- Painful bowel movements and emptying of bladder
Impact of Endometriosis on Fertility
On the off chance that you have endometriosis, it might be more difficult for you to get pregnant. Up to 30% to 50 % of females with endometriosis may encounter infertility. Endometriosis can impact fertility in different ways: distorted anatomy of the pelvis, adhesions, scarred fallopian tubes, inflammation of the pelvic structures, altered immune system functioning, changes in the hormonal environment of the eggs, impaired implantation of a pregnancy, and altered egg quality.
At the point when endometrial tissue wraps over your ovaries, it can block your eggs from releasing. The tissue can obstruct sperm from making its way up your fallopian tubes. It can likewise prevent a fertilized egg from sliding down your tubes to your uterus.
Treatment of Endometriosis Related Infertility
In case of difficulty getting pregnant with endometriosis you may wish to consult a fertility specialist. Treatment options for endometriosis related infertility include:
- Freezing eggs: Endometriosis can influence your ovarian reserve, so a few specialists may suggest protecting your eggs at present on the off chance that you wish to get pregnant later. This choice can be expensive, and isn’t typically covered by insurance.
- Superovulation and intrauterine insemination (SO-IUI): This is a possibility for women who have normal fallopian tubes, mild endometriosis, and whose partner has good quality sperm.
- A specialist will prescribe fertility medicines, like, Clomiphene. These medicines help to produce a few mature eggs. A specialist may likewise prescribe a progestin injection.
- A woman will routinely go through ultrasounds to guarantee the eggs are at their most matured state. At the point when the eggs are ready, a specialist will embed a partner’s collected sperm.
- In vitro preparation (IVF): This treatment includes extracting an egg from you and sperm from your partner. The egg is then fertilized externally and embedded into the uterus.
The success rates of IVF are 50 percent for women who don’t have endometriosis. But many women with endometriosis have successfully gotten pregnant thanks to IVF treatments. IVF is often recommended for women with moderate to severe endometriosis, or for women whose bodies haven’t responded to other treatments.
Egg banking, also known as oocyte cryopreservation, is a moderately new strategy for fertility protection where a developed, unfertilized egg is retrieved from a female, frozen and stored for later use.
Egg banking includes a female deciding to have eggs retrieved from her ovaries, frozen to preserve their viability and put away until she is ready to utilize them in a future in vitro fertilization (IVF) treatment to achieve pregnancy.
Egg freezing and egg banking can be utilized to preserve fertility in patients having aggressive medical treatments, for example, chemotherapy, or in patients who wish to protect their fertility presently to begin a family later.
Egg freezing process in conjunction with IVF
Egg freezing is achieved through a new IVF cycle, avoiding egg treatment in vitro.
- Stimulation of a woman’s ovaries utilizing fertility medications to produce a few egg follicles during one new IVF cycle
- Harvesting eggs from the woman’s ovaries through surgical retrieval
- Preparing and freezing of the eggs for preservation through a cycle known as vitrification
- The fast-freezing technique of vitrification makes it possible to freeze eggs rapidly so that ice crystals don’t form between cells
Egg banking in cancer treatment
Egg banking increases opportunities for women going through cancer treatment who preserve their fertility. In the event that they have a partner, they could go through a stimulation and retrieval cycle, developing embryos, and freeze them for some time in the future. They could do likewise without an available partner, in the event that they willing to utilize donor sperm to develop embryos. This would ensure them hereditary offspring, yet with a missing sperm donor father. In the event that they come up short on a partner and ability to utilize a sperm donor, egg freezing would empower as it both secures their fertility and gives them a decision over the genetic father of their post-treatment children. A comparable need may emerge with women with hereditary illnesses or different conditions, for example, premature ovarian failure, who had not yet found a spouse yet needed to ensure they have healthy eggs at a later point in their life for reproduction.
Advantages of egg banking
- Egg banking permits patients to extend their fertility. Thawed eggs hold their capacity to get fertilized from the time of freezing, giving the patient peace of mind by knowing pregnancy might be conceivable later on.
- For women who need to through fertility damaging treatments, for example, chemotherapy, egg freezing may permit them to preserve their fertility and start a family after treatment.
- Egg freezing can likewise assist women with premature fertility loss, for example, reduced ovarian reserve, by banking healthy eggs at an early age when they are likely to be viable for sometime in the future. In these cases, the woman’s doctor will suggest egg freezing and banking.
- A few women decide to freeze and bank their eggs for social reasons, for example, waiting for the right partner or not wanting to take a leave from work. The frozen eggs can be thawed, fertilized and embedded for pregnancy sometime in the not too distant future.
Risks of egg banking
Egg freezing carries several risks to the woman or couple, including:
- Ovarian hyperstimulation syndrome (OHSS).
- Surgical complications.
- Emotional effects.
A previous IVF failure is no longer a dead end on your journey to parenthood. Donor Egg IVF is a revolutionary technique that allows women with abnormally functioning ovaries or diminished ovarian reserve to experience the joy of pregnancy and childbirth. By using the eggs of a healthy donor and the sperm of the intended father (or a sperm donor), the resulting embryo is implanted into the intended mother’s uterus, allowing her to carry the child.
Who Can Be An Egg Donor?
At our center, we follow rigorous screening protocols to ensure the highest safety and success rates. A donor must be young, healthy, and possess optimal ovarian function. Key criteria include:
- Age: Ideally under 34 years (as recommended by the American Society for Reproductive Medicine).
- Screening: Extensive testing for genetic disorders, infectious diseases, and medical history.
- Sources: Donors can be known (friends or family) or anonymous through certified egg banks and fertility clinics.
Why is a Donor Egg Needed?
Donor eggs are often the most successful route for women over 40, boasting the highest success rates among all assisted reproduction techniques. Common indications include:
- Advanced Maternal Age: Age-related infertility or premature ovarian failure (early menopause).
- Genetic Concerns: Risk of transmitting genetic diseases from the biological mother.
- Poor Egg Quality: Producing eggs that fail to fertilize or develop into healthy embryos.
- Repetitive IVF Failure: Previous unsuccessful cycles using own eggs.
- Medical History: Post-cancer treatments or congenital anomalies (being born without ovaries).
Fresh vs. Frozen Donor Egg Cycles
| Cycle Type | Pros & Cons |
|---|
| Fresh Donor Eggs | Higher success rates (approx. 43.4% pregnancy rate); requires intense cycle synchronization. |
| Frozen Donor Eggs | More cost-effective and time-saving; fewer embryos typically available per batch. |
The Treatment Process: Step-by-Step
- Synchronization: The donor and intended mother’s cycles are aligned using hormonal medications.
- Stimulation & Preparation: The donor receives fertility injections to produce eggs, while the intended mother receives estrogen to prepare her uterine lining.
- Egg Retrieval & Fertilization: Eggs are retrieved from the donor and fertilized with the intended father’s (or donor’s) sperm in the lab.
- Embryo Transfer: The healthy embryo is transferred into the intended mother’s uterus.
- Post-Transfer: Progesterone support is provided, followed by a pregnancy test to confirm success.
Start Your Journey Today
Donor Egg IVF offers a high hope of success. Consult with Dr. Pankaj Talwar for a transparent and compassionate fertility plan.
📍 Gurugram & New Delhi | Advanced IVF Care
