Controlled ovarian hyperstimulation and IVF pregnancy prognosis

Area of Science:

• Reproductive Medicine
• Infertility Treatment
• Assisted Human Reproduction

Background:

• In vitro fertilization (IVF) is a key treatment for infertility, with increasing patient expectations for successful pregnancy outcomes.
• Optimizing IVF success to achieve healthy newborns is a critical goal in assisted reproduction.

Purpose of the Study:

• To analyze the impact of controlled ovarian hyperstimulation (COH) protocols on IVF pregnancy prognosis.
• To compare the effectiveness of different gonadotropin preparations and dosages on IVF success rates.

Main Methods:

• Retrospective analysis of 307 patients undergoing fresh IVF procedures between 2008-2010.
• Statistical analysis using the odd Student test to evaluate outcomes.
• Comparison of pregnancy outcomes based on gonadotropin type (recombinant FSH vs. urinary gonadotropin) and dosage.

Main Results:

• A pregnancy rate of 34% was observed in the study cohort.
• Recombinant FSH use was associated with a better birth/abortion ratio compared to urinary gonadotropins.
• The number of gonadotropin units administered was a significant favorable variable for improved birth/abortion ratio.

Conclusions:

• Controlled ovarian hyperstimulation protocols significantly influence IVF pregnancy outcomes.
• Recombinant FSH may offer advantages over urinary gonadotropins for improving IVF success.
• Gonadotropin dosage, rather than patient demographics or oocyte/embryo numbers, appears crucial for optimizing birth/abortion ratios in IVF.