Intra Cytoplasmic Sperm Injection (ICSI) is an ART procedure in which a single healthy active sperm is picked up with a fine glass needle and injected straight into the cytoplasm of a mature egg to assist fertilisation.
This treatment is an advanced form of IVF that puts sperm a step ahead as the sperm doesn’t have to travel to reach and penetrate the egg; this improves the chances of pregnancy by making sure the egg is fertilised.
Naturally, prior to a sperm fertilising an egg, the skull of the sperm must connect to the outer surface of the egg. Once connected, the sperm forces itself via the outer surface to the inside of the egg (cytoplasm), where fertilisation happens. Fertilisation is prevented, if the sperm fails to enter the outer surface of the egg, due to some physiological deficiencies, like
In these situations, ICSI is performed along with IVF treatment to support egg fertilisation.
ICSI is generally recommended for the couples who have:
Not all eggs that fertilise end up in developing into healthy embryos. It may be possible for some embryos and eggs to get damaged during the process of ICSI.
Couples using ICSI along with IVF have a 30-35% increased chance of conceiving twins and 5%-10% chances of having triplets. When the mother carries multiples, there are increased risks of certain complications during pregnancy and childbirth, which includes high blood pressure, gestational diabetes, low amniotic fluid levels, premature labor or need of cesarean section.
There is a 1.5%-3% risk of a major birth defect with normal pregnancy. The risk of birth defects is increased slightly with ICSI treatment, although it's rare nonetheless. Some birth defects are associated with ICSI are Angelman Syndrome, Beckwith-Wiedemann Syndrome, sex chromosome abnormalities and hypospadias.
Also, the risk of a male offspring having fertility issues increases slightly. There is a possibility of genetic transfer of infertility.