Embryo Migration After Transfer – What Our Study Found and Why It Matters

At Dunya IVF, we always strive to understand better the factors that influence IVF success. Together with Dr. Alper Eraslan, we have contributed and conducted, alongside colleagues, a study to answer an intriguing question: Does the movement of embryos after transfer play a role in pregnancy outcomes? Let me guide you through our findings and what they mean for you.

What Was the Study About?

Embryo migration refers to how embryos might move within the uterus after they are transferred. Historically, we believed embryos stayed in the exact spot where they were placed, but recent evidence suggests they might shift toward the top (fundus) or bottom (cervix) of the uterus.

The goal of our study was to see if this movement impacts the chances of getting pregnant or having a baby during fresh oocyte donation (OD) cycles – a treatment commonly used by women who need donor eggs.

How Did We Conduct the Study?

We looked at 611 fresh oocyte donation cycles performed at our center. Here’s how it worked:

1. Embryo Transfer: Using ultrasound guidance, embryos were placed in the middle-upper part of the uterus, about 10–20 mm from the fundus.
2. Tracking Movement: We used air bubbles to track the embryos’ position right after the transfer and again an hour later.
3. Grouping Patients: We divided patients into three groups based on embryo movement:
   
   • Embryos moved closer to the fundus.
   • Embryos stayed in place.
   • Embryos moved closer to the cervix.

We then compared the pregnancy rates and live birth rates in these groups.

What Did We Discover?

Our findings were fascinating:

• About 22% of embryos moved, either toward the fundus or cervix.
• Most embryos (nearly 78%) stayed in their original position.

But here’s the key takeaway –  Embryo migration didn’t impact pregnancy or live birth rates.

In all groups, the chances of getting pregnant and having a healthy baby were similar.

What Does This Mean for You?

If you’re undergoing IVF, this study offers reassuring news:

• The movement of embryos within the uterus is a natural process.
• Whether your embryo shifts or stays in place after transfer, it does not appear to affect your chances of success.

This is important because it helps reduce unnecessary stress during the already emotional IVF process.

Why Is This Study Significant?

This is the first large-scale study to examine embryo migration in fresh oocyte donation cycles. The findings reinforce current IVF practices: placing embryos in the middle-upper uterus remains the best approach.

It also highlights how the uterus works naturally to guide embryos toward the right spot for implantation – proving once again that our bodies are incredible!

A Message to Our Patients

At Dunya IVF, we are committed to using the latest research to improve your care. This study reflects our dedication to understanding every detail that could make your IVF journey smoother and more successful.

If you have questions about your treatment, please reach out. Together, we’ll make decisions based on science, care, and compassion.

About Taylor & Francis

Taylor & Francis® is a highly respected academic publisher with over 160 years of experience. They publish top-quality journals, books, and research across a wide range of fields, including science, medicine, and the humanities. Known for their credibility, they provide trusted platforms for researchers to share their work with a global audience.

Expertise Behind the Research

This study was made possible by the dedication and expertise of Dunya IVF specialists, Dr. Berk Angün and Dr. Alper Eraslan.

Dr. Berk Angun, M.D. is a leading reproductive endocrinologist, who graduated from the University of Uludag and the University of Anatolia Medical School and completed his specialization at Dr. Zekai Burak Women’s Hospital. Since joining Dunya IVF in 2008, he has contributed significantly to advancing fertility care and research.

Dr. Alper Eraslan, M.D. is an accomplished obstetrician and gynecologist, who earned his IVF Specialist certification at the American Hospital in Istanbul. A graduate of Dokuz Eylul University School of Medicine, he completed his residency at Marmara University Hospital and refined his expertise through international fellowships.