Intracytoplasmic Sperm Injection
In intracytoplasmic sperm injection eggs are extracted out of the woman’s ovary. The eggs are brought to the laboratory, where, using high resolution microscopes and micromanipulators, a single spermatozoid is introduced (injected) into each egg.
After 2 or 3 days the fertilized eggs (now 4 or 8 cells embryos) are placed directly into the uterus to be implanted and proceed with the 9 months gestation.
Another treatment option for the absence of sperm is the artificial insemination using donor sperm, IAD.
Who Benefits from Ivf With ICSI?
Chances of Pregnancy
ICSI is helpful for couples with:
- Abnormal spermatozoa.
- Unmoving spermatozoa.
- Low numbers spermatozoa in the ejaculate.
- Total absence of sperm in the ejaculate. In case, spermatoa can be sought directly in the testicle by puncture or testicular biopsy and in a high percentage of cases sperm can be obtained that can be used for ICSI.
The probability of pregnancy with IVF-ICSI cycle can vary between 20% and 50%, according to factors such as:
- Female age, this is the most influential factor prediction of success.
- Duration of infertility.
- Infertility factors. The age of the woman
The cumulative pregnancy rate after three cycles of treatment may be greater than 70%.