Success and Anticipated Pregnancy Outcomes From Oocyte Cryopreservation

In 2005, a study was published, which compared and examined the success rates for frozen and unfrozen oocytes. Parameters under study included live birth rates, clinical pregnancy, and implantation rates. In vitro fertilization success rates with slow-frozen oocytes were found to be significantly lower when compared with in-vitro fertilization success rates for oocytes that had not been frozen. The researchers felt that further studies needed to be conducted in order to determine the efficiency and safety of this technique. In May 2013, researchers from New York Medical College and the University of California at Davis have tabulated age-specific probabilities of Continue reading →

Hypothyroidism and Pregnancy

Hypothyroidism is a condition characterized by an abnormally low level of thyroid hormone production. Since thyroid hormones affect growth, development and many cellular processes, the lack of thyroid hormones may have widespread consequences for the body. The condition may manifest through the following symptoms: • Fatigue • Modest weight gain • Cold intolerance • Excessive sleepiness • Dry, coarse hair • Constipation • Dry skin • Muscle cramps • Vague aches and pains • Swelling of the legs This lack in production of Thyroid hormones is caused by varied factors. Some of the most common ones are the following: • Continue reading →

Solutions to Risks from Egg Freezing

With several advances in medical knowledge, research and development, and technology, there are many solutions for infertility. From intracytoplasmic sperm injection, to in-vitro fertilization and cryopreservation of spermatozoa, oocytes, embryos and blastocysts, doctors have a variety of ways to help infertile women and couples. Of course, there is no exact science, and for even the most beneficial, advanced techniques, drawbacks, limitations and risks are not uncommon. Oocyte cryopreservation carries various risks, including medical conditions due to, or related to the use of drugs that facilitate or induce fertility. Less commonly, the use of human chorionic gonadotropin (HCG), an injectable fertility Continue reading →

Cryopreservation of Sperm and Testicular Tissue

Sperm and testicular tissues can be preserved, and the procedure has been around for several decades. This service is available for men who wish to bank their sperm for the future. Cryopreservation of sperm and testicular tissue is an invaluable option for men who have been diagnosed with cancer, and face treatment modalities such as chemotherapy or radiation therapy. These methods have been found to be harmful to organs, tissues and cells related to reproduction. Sperm freezing gives couples the option for future assisted reproductive therapy treatments such as intrauterine insemination and in-vitro fertilization. This can be beneficial for couples Continue reading →

Comparison between Slow Freezing and Vitrification

For oocyte cryopreservation, there are several methods available to achieve the process. As the demands for embryo freezing have increased, so have the number of IVF clinics who have adopted vitrification. At many clinics, this is the freezing method of choice. Conventional freezing methods have several problems. Numerous studies have determined that ice crystals cause damage to embryos. Although survival rates after thawing them varied between 50 and 60%, a significant number of embryos did not survive slow freezing. Vitrification is an advanced cell-freezing technique that allows for a greater survival rate after thawing. In vitrification, high concentrations of cryoproctectants Continue reading →