What are the benefits and risks of elective single embryo transfer (eSET), and how do fertility specialists determine which patients are best suited for this approach?
Gaurav ChauhanContributor
What are the benefits and risks of elective single embryo transfer (eSET)?
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1. eSET reduces risks of multiple births and preterm labor. Ideal for women under 35 with high-quality embryos and prior successful IVF.
2. Benefits of eSET include lower risk of complications like preterm birth. Suited for patients with strong embryo quality and no significant infertility history.
3. eSET minimizes risk of twins and associated health issues, best for younger women or those with favorable prognosis from previous treatments.
Benefits of Elective Single Embryo Transfer (eSET):
1. Reduced Risk of Multiple Pregnancies: eSET lowers the risk of multiple pregnancies (e.g., twins or triplets), which are associated with higher maternal and fetal complications.
2. Higher Success Rates per Transfer: Focusing on transferring a single high-quality embryo can result in higher success rates per transfer compared to transferring multiple embryos.
3. Cost-Effectiveness: While the initial IVF cycle might be more expensive with eSET, the reduced likelihood of requiring additional cycles due to failed implantations or multiple pregnancies can make it more cost-effective in the long run.
4. Healthier Pregnancy Outcomes: There is evidence to suggest that singleton pregnancies are associated with better maternal and fetal outcomes compared to multiple pregnancies.
Risks of Elective Single Embryo Transfer (eSET):
1. Lower Probability of Pregnancy: One of the main risks is that not all embryos will implant successfully, so there is a chance of not achieving a successful pregnancy in the initial cycle.
2. Potential Need for Additional Cycles: If the first eSET cycle is unsuccessful, patients may need to undergo additional cycles, leading to increased emotional stress, time commitment, and financial burden.
3. Risk of Implantation Failure: Some embryos may not implant even if they are of good quality, resulting in a failed cycle.
Determining Suitability for eSET:
1. **Age of the