ICSI Archives - Best IVF Specialist in Gurgaon | Dr Pankaj Talwar | Male Infertility Expert
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Best IVF Specialist Doctor in Delhi, Gurugram

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.

Reasons for IVF Failure: Understanding the Challenges to Success

Dr. Prof (Col) Pankaj Talwar, VSM, MD, PhD

Renowned IVF & Andrology Specialist | đź“ž 9810790063

In vitro fertilization (IVF) is a sophisticated series of procedures designed to assist with fertility, prevent hereditary genetic issues, and aid in conception. While modern technology has made IVF in Delhi NCR more successful than ever, it is a biological reality that the process does not always result in pregnancy on the first attempt.

Younger women generally see higher success rates—approximately 40% for those under 35. However, when a cycle fails, it is often due to factors beyond the patient’s control. Understanding these medical hurdles is essential for planning a more successful subsequent path.

1. Chromosomal & Egg Abnormalities

The health of a human egg (oocyte) is susceptible to damage from free radicals and metabolic byproducts, especially as a woman ages. Studies indicate that 25% to 40% of all oocytes can be chromosomally anomalous. This percentage increases significantly after the age of 37, often leading to embryos that fail to implant or result in early miscarriage.

2. Embryo Quality and Selection

In our lab, embryologists evaluate embryos based on three primary standards: cell stage, embryo grade, and the rate of cell division. For instance, a Day 3 embryo should ideally reach at least the 6-cell stage. Embryos that divide too slowly or show poor grading have a significantly lower chance of successful implantation.

3. Poor Ovarian Response

Sometimes, the ovaries do not respond adequately to fertility medications. This is more common in women with a diminished ovarian reserve or high FSH levels. If the cycle produces too few eggs, there may not be enough viable embryos for screening or transfer, increasing the likelihood of failure.

4. The Role of Sperm Quality

While sperm issues are less likely to cause IVF failure—thanks to techniques like ICSI (Intracytoplasmic Sperm Injection)—healthy, motile sperm remain crucial. If the sperm lacks the necessary enzymes to penetrate the egg’s outer membrane, fertilization failure can occur, even in a lab environment.

5. Lifestyle Factors: The Controllables

While many factors are genetic, certain lifestyle choices significantly impact outcomes:

  • Smoking: Women who smoke often require twice as many IVF cycles and face a higher risk of miscarriage.
  • BMI: Being significantly over or underweight can disrupt hormonal balance. Losing just 10% of body weight can markedly improve pregnancy odds.

How We Mitigate IVF Failure

Understanding the “why” is the first step toward the “how.” At our Gurugram fertility clinic, we utilize advanced protocols to mitigate failure, including:

  • PGT (Pre-implantation Genetic Testing): Screening embryos for chromosomal health before transfer.
  • Individualized Protocols: Adjusting medication types and dosages based on previous ovarian response.
  • Advanced Lab Techniques: Using ICSI or donor eggs/sperm when qualitative issues are identified.

Don’t Give Up After an Unsuccessful Cycle

An IVF failure is a data point, not a destination. Let Dr. Pankaj Talwar analyze your previous cycle to build a stronger strategy for your next step.

đź“Ť Gurugram | New Delhi | World-Class Infertility Care