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Updated: Jun 13, 2026
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Minimally Invasive Embryo Transfer and Embryo Vitrification at the Optimal Embryo Stage in Rabbit Model
Published on: May 16, 2019
Optimizing the technique of embryo transfer
Lindsay Mains1, Bradley J Van Voorhis
1Division of Reproductive Endocrinology and Infertility, University of Iowa Hospitals and Clinics, Iowa City, Iowa 52242, USA.
Fertility and Sterility
|April 23, 2010
Summary
Optimizing embryo transfer (ET) techniques, including ultrasound guidance and soft catheters, can improve IVF pregnancy outcomes. While no single method is universally optimal, specific technical aspects enhance success rates.
Area of Science:
- Reproductive Medicine
- In Vitro Fertilization (IVF)
Background:
- The embryo transfer (ET) procedure is a critical step in IVF.
- Numerous technical factors may influence its success.
Purpose of the Study:
- To review the scientific literature on technical aspects of embryo transfer.
- To identify techniques associated with improved IVF outcomes.
Main Methods:
- Literature search of PubMed and Medline for publications on ET technique.
- Analysis of studies evaluating the impact of technical aspects on pregnancy rates.
Main Results:
- Consistent evidence supports ultrasound guidance, soft catheters, and optimizing transfer ease.
- Limited evidence suggests benefits from trial transfers, mucus removal, mid-uterine deposition, avoiding catheter suction, and timely completion.
Conclusions:
- While optimal ET technique lacks universal consensus, specific methods demonstrably improve IVF outcomes.
- Evidence supports several technical modifications to enhance embryo transfer success.
