January 21, 2026
Decline in Twins from Fertility Treatment: eSET and IVF Solutions
Twin rates from fertility treatment doubled between 1998 and 2009, but advancements like eSET and blastocyst culture have significantly reduced multiples while improving IVF success, as reported by SGF’s Dr. Kate Devine in US News.
Key Takeaways
Why Fertility Treatments Once Led to Higher Twin Birth Rates
Until recently, limited embryo quality assessment forced physicians to transfer multiple embryos (often 2–3) to increase implantation chances, as early IVF relied solely on morphology and 2-3 day development observations, resulting in higher twin and triplet rates.
How Blastocyst Culture and Genetic Testing Reduce Twinning in IVF
Modern labs now culture embryos to the blastocyst stage (day 5–6), allowing detailed evaluation of inner cell mass and trophectoderm. Genetic testing (PGT-A) further identifies chromosomally normal embryos, enabling confident single embryo transfers (eSET) with high success rates.
Elective Single Embryo Transfer (eSET): The Shift to Healthier Singleton Births
Shady Grove Fertility’s adoption of eSET as standard care has drastically reduced multiple pregnancies. By transferring one high-quality embryo, they maintain high IVF success rates while minimizing risks to mothers and babies associated with multiples.
Health Risks of Multiple Births and Why Doctors Prefer Singletons Now
Singleton pregnancies improve maternal outcomes (reduced preeclampsia, preterm labor) and reduce neonatal complications (low birth weight, developmental delays). SGF’s protocols prioritize singleton births, aligning with medical guidelines for safer deliveries.
SGF’s Advanced IVF Protocols: Balancing High Success Rates with Low Twinning
Technologies like blastocyst vitrification and extended embryo culture allow labs to freeze surplus high-quality embryos. This ensures optimal single embryo transfers in subsequent cycles, achieving 70–80% live birth rates without compromising patient safety.
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