Cryopreservation is one of the most transformative advancements in modern reproductive medicine. It allows individuals and couples to pause their biological clock with extreme clinical precision. According to Prof. (Dr.) Abha Majumdar, fertility preservation requires highly specialized laboratory environments and advanced fast-freezing technologies. This clinical guide explains our scientific protocols for egg, embryo, and sperm preservation at Sir Ganga Ram Hospital.
In the past, fertility laboratories utilized slow-freezing methods to preserve reproductive cells. However, that older technique often allowed ice crystals to form inside the cells. These microscopic ice crystals could easily damage the delicate cellular structure of an egg or embryo during the thawing process.
To eliminate this risk completely, our state-of-the-art laboratory exclusively practices Vitrification. Vitrification is an ultra-rapid cooling technique that flash-freezes cells at a rate of thousands of degrees per minute. Consequently, the cellular fluid transitions instantly into a glass-like solid state without forming any harmful ice crystals. This advanced protocol ensures exceptional post-thaw survival rates, safely exceeding 95% for embryos and oocytes.
Professor’s Laboratory Insight: Eggs contain a high volume of water, making them highly sensitive to temperature transitions. Therefore, utilizing high-grade cryoprotectants and precise vitrification timing is absolutely essential. This rigorous standard protects the genetic integrity of the cell throughout its time in storage.
Modern cryopreservation addresses diverse clinical, social, and medical scenarios. Our team customizes treatment pathways based on the unique timelines and requirements of each patient.
| Preservation Type | Target Candidates | Clinical Objective |
|---|---|---|
| Oocyte Freezing (Egg Freezing) | Women wishing to delay childbearing for career, educational, or personal reasons (Social Freezing). | Preserves young, healthy oocytes to safeguard against the natural, age-related decline in egg quality. |
| Embryo Cryopreservation | Couples undergoing IVF who have surplus high-grade embryos remaining after a fresh transfer. | Allows future pregnancy attempts without requiring the female partner to undergo another ovarian stimulation cycle. |
| Onco-Fertility Preservation | Patients recently diagnosed with cancer who face upcoming chemotherapy or radiation treatments. | Safeguards reproductive cells before toxic cancer therapies cause irreversible damage to the ovaries or testes. |
To ensure maximum safety and cellular viability, our clinical team guides patients through a highly structured, scientifically verified protocol.
For female patients undergoing egg or embryo freezing, the process begins similarly to a standard IVF cycle. The patient receives customized gonadotropin injections to stimulate multiple follicles. Our team monitors this growth closely via pelvic ultrasounds and hormone assessments. Once the follicles mature, a specialist retrieves the eggs under light, pain-free sedation.
Immediately following retrieval or fertilization, embryologists place the selected cells into specialized solutions called cryoprotectants. These solutions safely draw excess water out of the cells. Simultaneously, they protect the intracellular structures from thermal shock during cooling.
Next, the embryologist loads the cells onto micro-carriers and plunges them directly into liquid nitrogen. This step drops the temperature immediately to -196°C. Finally, we transfer the vitrified samples into highly secure storage tanks filled with liquid nitrogen. These tanks feature continuous digital monitoring systems to guarantee a perfectly stable environment indefinitely.
Beyond long-term preservation, cryopreservation serves as a vital safety tool during active IVF treatments. Ovarian stimulation can sometimes elevate progesterone levels abnormally high. This hormone spike can disrupt the uterine lining’s natural receptivity, lowering fresh transfer success rates.
Furthermore, patients with high follicle counts face an increased risk of Ovarian Hyperstimulation Syndrome (OHSS). In these specific scenarios, Dr. Abha Majumdar advocates for a strict **”Freeze-All” strategy**. We vitrify all embryos safely and delay the transfer until the patient’s body returns to its natural baseline state. Consequently, this approach eliminates the risk of OHSS entirely while noticeably maximizing future implantation rates.
Ultimately, cryopreservation offers patients complete biological autonomy. Years of global clinical data confirm that children born from vitrified cells show absolutely no difference in development or health outcomes compared to those born from fresh cycles. By securing high-quality cells today, individuals protect their reproductive options for the future with total peace of mind.
Medically Reviewed & Approved By: Prof. (Dr.) Abha Majumdar, Director & Head of the Centre of IVF, Sir Ganga Ram Hospital, New Delhi. International pioneer in Vitrification, Onco-Fertility networks, and Embryo Banking Standards.
