2025-11-24
25
Admin
Based on the donor's ovarian reserve (AMH/FSH), our specialists design a personalized protocol using Gonadotropins (FSH/LH injections) to stimulate the growth of multiple follicles. Regular ultrasound monitoring is conducted over 10-12 days to track follicular maturation.
Once follicles are mature, Oocyte Retrieval is performed under sedation. In the lab, embryologists employ ICSI (Intracytoplasmic Sperm Injection), injecting a single selected sperm directly into the cytoplasm of a mature egg (MII oocyte). This ensures high fertilization rates, even with male factor infertility.
Fertilized eggs are cultured for 5 to 6 days until they reach the Blastocyst stage. A blastocyst consists of differentiated cells (Inner Cell Mass and Trophectoderm) and possesses significantly higher implantation potential compared to Day-3 cleavage stage embryos.
Crucial for success. The surrogate undergoes hormonal preparation (Estrogen/Progesterone) to thicken the Endometrium (lining) to the optimal 8-12mm. We precisely identify the "Window of Implantation" (WOI) before performing the Frozen Embryo Transfer (FET), maximizing the chances of a clinical pregnancy.
Q: How are surrogates screened?
A: ANVINO enforces strict screening. Surrogates must pass infectious disease testing, psychological evaluation, and a thorough uterine exam (Hysteroscopy) to ensure they are physically and mentally capable of carrying a healthy pregnancy.
Q: What happens if the first transfer fails?
A: In our Guaranteed Package, we cover the cost of subsequent transfers. If a transfer fails, the doctor will adjust the medication protocol for the surrogate's next cycle to improve endometrial receptivity.
Q: Is ICSI better than standard IVF?
A: Yes. For surrogacy cycles, we use ICSI as the standard because it significantly improves fertilization rates, ensuring we have more embryos available for culture and screening.