A retrospective follow-up study on intracytoplasmic sperm injection

Area of Science:

• Reproductive Medicine
• Genetics
• Developmental Biology

Background:

• Male subfertility presents genetic challenges impacting assisted reproductive technologies.
• Intracytoplasmic sperm injection (ICSI) is a novel technique with potential effects on zygote and child development.
• Comparing ICSI outcomes to conventional in vitro fertilization (IVF) is crucial for understanding safety and efficacy.

Purpose of the Study:

• To compare the outcomes of intracytoplasmic sperm injection (ICSI) with conventional in vitro fertilization (IVF).
• To evaluate the influence of ICSI on zygote and child development, considering genetic factors in male subfertility.

Main Methods:

• Retrospective analysis of medical records from 233 pregnancies.
• Follow-up data collected for 132 children born after IVF and 120 children born after ICSI.
• Assessment of early embryonic development, obstetric outcomes, and congenital malformation rates.

Main Results:

• No significant differences observed between ICSI and IVF groups regarding early embryonic development and obstetric outcomes.
• Congenital malformation rates were 3.0% after IVF and 1.7% after ICSI, a non-significant difference.
• Follow-up development assessments for children born via ICSI and IVF showed no significant variations.

Conclusions:

• Current findings suggest intracytoplasmic sperm injection (ICSI) is a safe procedure for assisted reproduction.
• While ICSI appears safe, ongoing prospective follow-up is necessary to definitively rule out any potential long-term risks.
• The study supports the use of ICSI in cases of male subfertility, with comparable safety to IVF.