Blastocyst Transfer

Standard IVF-embryo transfer involves transfer of embryos at the cleavage stage, after the embryos have been cultured (grown) in the laboratory for 2 or 3 days (2 or 3 days after egg retrieval). Following fertilization, each day 1 embryo (zygote) is formed of a single cell. As the embryo grows in the laboratory, cellular division occurs, and the cell splits into two daughter cells (blastomeres). With further division, each daughter cell splits into two more daughter cells, and so on... Therefore, after 3 days of being cultured, each embryo normally contains between 6 and 8 cells. This is the stage at which most embryo transfers are performed.

An alternative to transferring embryos on day 3 is the blastocyst transfer. Blastocysts are embryos which are more advanced in their development, typically 5 or 6 days old (5 or 6 days after egg retrieval). Blastocysts have a supernumerary number of cells (between 64 and 128 cells per blastocyst). Because they are more advanced, blastocysts also have a better implantation rate than day 3 embryos. As such, a smaller number of blastocysts can be transferred to achieve similar or greater pregnancy rates than with the transfer of a higher number of day 3 embryos. When concerns arise regarding higher order multiple gestation (triplets or more), blastocyst transfer should be considered.

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Eliran Mor, MD • Encino, Santa Monica, Valencia & West Hollywood, CA

Reproductive Endocrinologist located in Encino, Santa Monica, Valencia & West Hollywood, CA • Irene Woo, MD

Doctor Mor received his medical degree from Tel Aviv University-Sackler School of Medicine in Israel. He completed a four-year residency in Obstetrics and Gynecology at New York Methodist Hospital in Brooklyn, New York. Subsequently, Dr. Mor completed a three-year fellowship in Reproductive Endocrinology and Infertility at the University of Southern California. Doctor Mor is Board Certified in both Reproductive Endocrinology/Infertility and Obstetrics and Gynecology. Throughout his career Dr. Mor has researched many topics in infertility and human reproduction, including polycystic ovary syndrome (PCOS); emergency contraception; neuroendocrinology; insulin resistance; male factor infertility; donor sperm insemination; tubal factor infertility; IVF stimulation protocols; congenital uterine anomalies; tubal gamete/embryo transfer (GIFT/ZIFT/TET); pregnancy at advanced reproductive age; and hormone replacement therapy (HRT), and continues to do so today. He is a member, in excellent standing, of multiple prestigious medical societies, including the American Society of Reproductive Medicine (ASRM), the Pacific Coast Reproductive Society (PCRS), the Society of Laparoendoscopic Surgeons (SLS), and the American College of Obstetricians and Gynecologists (ACOG), and remains a Clinical Instructor at USC.

Doctor Mor is one fertility expert who is constantly striving to stay on the cutting-edge of fertility treatments and human reproduction. In addition to monthly Journal Club meetings/publication review sessions and educational seminars/lectures, Dr. Mor attends at least two major Reproductive Endocrinology/Infertility meetings each year in an effort to present his patients with the latest in innovative reproductive care. Only interventions that have been tested and validated through multiple good studies are adopted in Dr. Mor’s practice, in an effort to administer safe and effective treatments to achieve a healthy pregnancy.

A true “patients’ doctor,” Dr. Mor is and will be your physician throughout your fertility journey! All consultations, after-hour inquiries, pelvic examinations, ultrasound examinations, diagnostic procedures, assisted reproductive procedures (egg retrievals, embryo transfers...), and surgical procedures, if needed, will be performed by Dr. Mor. Involvement in every aspect of your fertility care and complete micromanagement of your treatment makes Dr. Mor your ideal partner in your path to becoming pregnant.

See Dr. Mor's Publications

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California Center for Reproductive Health

Doctor Mor received his medical degree from Tel Aviv University-Sackler School of Medicine in Israel. He completed a four-year residency in Obstetrics and Gynecology at New York Methodist Hospital in Brooklyn, New York. Subsequently, Dr. Mor completed a three-year fellowship in Reproductive Endocrinology and Infertility at the University of Southern California. Doctor Mor is Board Certified in both Reproductive Endocrinology/Infertility and Obstetrics and Gynecology. Throughout his career Dr. Mor has researched many topics in infertility and human reproduction, including polycystic ovary syndrome (PCOS); emergency contraception; neuroendocrinology; insulin resistance; male factor infertility; donor sperm insemination; tubal factor infertility; IVF stimulation protocols; congenital uterine anomalies; tubal gamete/embryo transfer (GIFT/ZIFT/TET); pregnancy at advanced reproductive age; and hormone replacement therapy (HRT), and continues to do so today. He is a member, in excellent standing, of multiple prestigious medical societies, including the American Society of Reproductive Medicine (ASRM), the Pacific Coast Reproductive Society (PCRS), the Society of Laparoendoscopic Surgeons (SLS), and the American College of Obstetricians and Gynecologists (ACOG), and remains a Clinical Instructor at USC.

Doctor Mor is one fertility expert who is constantly striving to stay on the cutting-edge of fertility treatments and human reproduction. In addition to monthly Journal Club meetings/publication review sessions and educational seminars/lectures, Dr. Mor attends at least two major Reproductive Endocrinology/Infertility meetings each year in an effort to present his patients with the latest in innovative reproductive care. Only interventions that have been tested and validated through multiple good studies are adopted in Dr. Mor’s practice, in an effort to administer safe and effective treatments to achieve a healthy pregnancy.

A true “patients’ doctor,” Dr. Mor is and will be your physician throughout your fertility journey! All consultations, after-hour inquiries, pelvic examinations, ultrasound examinations, diagnostic procedures, assisted reproductive procedures (egg retrievals, embryo transfers...), and surgical procedures, if needed, will be performed by Dr. Mor. Involvement in every aspect of your fertility care and complete micromanagement of your treatment makes Dr. Mor your ideal partner in your path to becoming pregnant.

See Dr. Mor's Publications


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We invite you to join our family as we look to expand yours!

Doctor Mor is a Board Certified Reproductive Endocrinology/Infertility expert with extensive experience in the most advanced fertility treatments available. Under his leadership, CCRH has become renowned for superior reproductive care, receiving rave reviews year after year. The Center is a boutique practice with exceptionally personalized service, customized and individually-tailored to each person or couple's needs with unmatched results.

Great emphasis is placed on proper testing and accurate
diagnosis, allowing for safe and effective treatments to achieve the ultimate outcome – a healthy baby!

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Professional Affiliations/Resources

The physicians and staff of the California Center for Reproductive Health are dedicated to patient education and care. The Center is affiliated with several prestigious medical societies and organizations aimed at educating both healthcare professionals and patients and at improving patient care. The following is a list of professional affiliations:

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Testimonials

Words from our patients

  • Healthgrades

    "Dr. Mor has helped my wife and I get pregnant. He is an expert in his field with a wealth of knowledge which he personalized for our individual situation."

    Gilbert
  • Healthgrades

    "Dr. Mor is a phenomenal human being with a wealth of knowledge. From our first appointment to our last, he demonstrated his great bed side manner."

    Veronica
  • Dear CCRH Team, thank you for all the support in my journey to get pregnant. My twins are blessed without a deadly cancer gene and all of you made it happen.

    A.A.
  • You are a wonderful doctor and a very nice person. The babies are doing great and our family is very happy. M.L.

    M.L.
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