ICSI (intracytoplasmic sperm injection)

ICSI (intracytoplasmic sperm injection) is the reproductive diagnostics method, which is applied in IVF programs in cases of heavy male infertility forms.   

ICSI : Medical Indications

The ICSI procedure can be indicated  in the following cases:

  • decrease in quantity of spermatozoa in sperm;
  • decrease in motility of spermatozoa;
  • morphologic pathology of spermatozoa;
  • presence of anti-spermatic antibodies (ASAB);
  • non-identifiable pathologies of spermatozoa or oocytes;
  • low quantity and quality of spermatozoa in cases where cryopreserved sperm is used;
  • age of woman is above 38;
  • heavy form of endometriosis; 
  • unclear-genesis infertility.

ICSI : Methods

The ICSI procedure is performed on the day of puncture of follicles or immediately following a failed attempt of unassisted fusion of a spermatozoon with an egg.

For the purposes of fertilization, embryologists sample normal-morphology spermatozoa. They are further immobilized, sucked into a tip of a super-thin glass needle, and then injected directly inside an oocyte.

ICSI Effectiveness

The ICSI procedure has been applied all over the world for more than 15 years. The rate of oocytes fertilized with the use of the ICSI method is about 70 %. In this case about 80 % of fertilized oocytes start dividing in the normal way.

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