A sophisticated micromanipulation technique for perforating the shell surrounding the egg (the zona pellucida) so that the embryo can "break out" and implant in the uterus. As women get older, the zona pellucida may become harder or tougher, making it difficult for the embryos to hatch. As a result, implantation and pregnancy may not occur. [...]
Treatments and procedures involving the handling of human eggs and sperm for the purpose of establishing a pregnancy. Types of ART include in vitro fertilization (IVF), oocyte donation, preimplantation genetic diagnosis (PGD) intracytoplasmic sperm injection (ICSI), assisted hatching, fragment removal, embryo cryopreservation, frozen embryo transfer, and oocyte donation.
Aygestin is a form of progestin, a synthetic substance that chemically resembles progesterone, that may be prescribed in ovulation induction therapies to inhibit ovulation and quiet the ovaries in advance of egg stimulation using injectable hormones. This "down time" helps the ovaries respond better to treatment. In much the same way that oral contraceptives prevent [...]
The absence of sperm in the ejaculate.
Low-dose aspirin (80 to 100 milligrams) used in infertility treatment to thin the blood.
The body temperature at rest. A slight rise in the BBT indicates that ovulation has occurred. Some female infertility patients are asked to fill out a BBT chart showing their temperature, taken orally, on consecutive days over a period of one or more months.
An embryo that is approximately five days old and consists of some 100 cells that form an outer shell of cells protecting an attached inner group of cells surrounding a fluid core. The outer cells develop into the placenta, which protects the fetus created from the inner cells.
Allowing in vitro embryos to reach blastocyst stage (typically five days after fertilization) before transferring them into the uterus. By waiting for the embryos to reach a more developed stage, more viable embryos may be selected, and thus fewer embryos may be transferred than is customary when embryos are transferred on the third day of [...]
A single cell from a developing embryo.