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[Clinical analysis of 12,491 cycles treated in embryo transfer program]
1Reproductive Medical Center, Peking University Third Hospital, Beijing 100083, China.
Zhonghua Fu Chan Ke Za Zhi
|December 18, 2008
Summary
In vitro fertilization and embryo transfer (IVF-ET) is effective for infertility. Female age and poor ovarian response significantly impact pregnancy rates, while frozen embryo transfer (FET) improves outcomes.
Area of Science:
- Reproductive Medicine
- Clinical Embryology
Context:
- In vitro fertilization and embryo transfer (IVF-ET) is a widely used assisted reproductive technology.
- Analyzing outcomes from a large cohort of IVF-ET cycles is crucial for understanding treatment efficacy and influencing factors.
Purpose:
- To evaluate the clinical outcomes of IVF-ET, including pregnancy and live birth rates.
- To identify key factors influencing pregnancy rates in fresh and frozen embryo transfer (FET) cycles.
- To compare the effectiveness of fresh embryo transfer versus FET.
Summary:
- This retrospective analysis of 12,491 IVF-ET cycles revealed clinical pregnancy rates of 32.99% for fresh transfers and 38.08% for FET.
- Patient age was identified as the most significant factor affecting pregnancy outcomes, followed by infertility causes and cycle number.
- Frozen embryo transfer demonstrated a significantly higher clinical pregnancy rate compared to fresh embryo transfer cycles.
Impact:
- IVF-ET is a safe and effective treatment for infertility.
- Female age and diminished ovarian reserve are primary determinants of IVF-ET success.
- Frozen embryo transfer is a valuable strategy for enhancing cumulative pregnancy rates in infertility management.
