ICSI, Intracytoplasmic sperm injection

One of the most innovative techniques in human reproduction is intracytoplasmic sperm injection. With important safety measures and high technology, pregnancy is achieved from the implantation of the fertilized ovum in the woman’s uterus. This treatment is a variant of In-Vitro fertilization (IVF).

What is the Intracytoplasmic sperm injection?

In the intracytoplasmic sperm injection, the woman’s eggs are extracted and taken to the laboratory. Through high-resolution microscopes and micromanipulators, a single sperm is injected into the interior of each egg. After 2 to 3 days, the fertilized eggs (already embryos of 4 or 8 cells) are inserted directly into the woman’s uterus so that they implant and finish their development for nine months.

ICSI treatment is recommended when.

  • A severe male factor is present.
  • Low mobile sperm count in the ejaculated semen.
  • There is a low sperm concentration, and there are few normal sperm.
  • There is a total absence of sperm in ejaculation. In this case, testicular puncture or biopsy is performed, and in a high percentage of patients, sperm is obtained that can be used to make ICSI.

The probability of obtaining a pregnancy with an IVF-ICSI cycle may vary between 20% and 50%, according to factors such as:

  • The woman’s age, which may be the most influential factor in the prognosis of success.
  • The duration of infertility.
  • Infertility factors.

The cumulative pregnancy rate after three cycles may be greater than 70%.

ICSI with microinjection of morphologically selected sperm

One of the most innovative techniques in human fertility is the IMSI, or microinjection of morphologically selected spermatozoa.

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