Frozen Embryo Replacement Cycle uses previously frozen embryos for treatment. They are managed either using a natural cycle or in a controlled cycle. If good quality embryos are not transferred then they may be stored for future use. These embryos are frozen at low temperatures to ensure their quality does not decline over the years.
In a natural cycle no drugs are prescribed. Regular monitoring using ultrasound scans is done to confirm ovulation. Ovulation makes the uterine lining receptive to the embryos. Consult your fertility specialist for further details.
In a controlled cycle, medications in the form of tablets are prescribed to make the uterine lining receptive to embryos. Regular monitoring is done to check the thickness of the uterine lining. The embryos are thawed on the day they are to be transferred. Once the lining is ready, the embryos are transferred.
The advantages of the procedure are that the ovaries need not be stimulated every time and the pregnancy rate increases. It is a cost effective procedure. The disadvantages are that legal issues might arise in case of death or divorce. Also, decision needs to be taken on the remaining embryos if pregnancy is achieved.
Surgical Sperm Retrieval
This method is used to treat male infertility condition in which normal sperm is not produced or ejaculated in semen. It is used in men with the following conditions
Prevention of sperm release due to obstruction caused by injury or infection
Congenital absence of the tube that drains the sperm from the testicles
Non obstructive azoospermia where the testicles produce low sperm count.
In the first three conditions sperm can be collected directly from the epididymis or testes. In case no live sperms are found, they can also be collected using testicular biopsy in which a sample tissue from the testicles is removed and examined. The introduction of the Surgical Sperm Retrieval (SSR) method combined with the technique of ICSI makes fathering a child possible for men with fertility problems.